List of publications (most recent at the end …)

  1. Tunable diode-pumped-LNA laser.

A. Cassimi, V. Hardy, J. Hamel, M. Leduc.

Journal de Physique, 48, C7-351 (1987).

  1. A diode pumped solid tunable laser.

J. J. Aubert, Ch. Wyon, A. Cassimi, V. Hardy, J. Hamel.

Optics Communications, 69, 299 (1989).

  1. Latent track formation induced by high energy heavy ions in superconductive copper oxides.

V. Hardy, D. Groult, M. Hervieu, J. Provost, B. Raveau, S. Bouffard.

Nuclear Instruments and Methods in Physics Research B, 54, 472 (1991).

  1. GeV-heavy ions irradiation effects in thallium-based superconducting copper oxides.

V. Hardy, D. Groult, J. Provost, M. Hervieu, B. Raveau, S. Bouffard.

Physica C, 178, 255 (1991).

  1. High resolution electron microscopy study of electronic energy loss effects in
    Tl-based superconducting copper oxides irradiated by 5.8 GeV-Xe ions.

V. Hardy, M. Hervieu, D. Groult, J. Provost, B. Raveau.

Radiation Effects and Defects in Solids, 118, 343 (1991).

  1. Magnetic relaxation and flux pinning in YBa2Cu3O7 high-Tc oxide irradiated by 5.3 GeV-Pb ions.

V. Hardy, D. Groult, J. Provost, B. Raveau.

Physica C, 190, 289 (1992).

  1. Heavy ions irradiation effects on magnetization of Tl2Ba2CaCu2O8 and TlBa2CaCu2O7 single crystals.

V. Hardy, J. Provost, D. Groult, B. Raveau, L.R. Tessler, J.C. Frison, J.P. Chaminade, S. Bouffard.

Materials Science and Engineering B , 13, 279 (1992).

  1. Strong shift of the irreversibility line in bismuth and thallium based-2212 HTSC single crystals irradiated by 6 GeV-Pb ions.

V. Hardy, J. Provost, D. Groult, M. Hervieu, B. Raveau, S. Durcok, E. Pollert, J.C. Frison, J.P. Chaminade, M. Pouchard.

Physica C, 191, 85 (1992).

  1. Critical current and defects in high Tc superconducting materials.

B. Raveau, J. Provost, Ch. Simon, G. Desgardin, V. Hardy, D. Groult.

Ann. Chim. Fr., 18, 337 (1993).

  1. Irreversibility lines of Bi-2212 single crystals irradiated by 6 GeV-Pb ions.

V. Hardy, Ch. Simon, J. Provost, D. Groult.

Physica C, 205 , 371 (1993).

  1. Pinning forces in Bi-2212 single crystals irradiated by 6 GeV-Pb ions.

V. Hardy, Ch. Simon, J. Provost, D. Groult.

Physica C, 206 , 220 (1993).

  1. Columnar defects and relaxation in Bi-2212 single crystals : dual analysis by the single barrier model and the Hagen and Griessen inversion scheme.

V. Hardy, A. Ruyter, J. Provost, D. Groult, Ch. Simon.

Physica C, 224, 143 (1994).

  1. A crystal study of the 128K-superconductor Tl2Ba2Ca2Cu3O10- : synthesis and anisotropic magnetic properties.

A. Maignan, C. Martin, V. Hardy, Ch.Simon, M. Hervieu, B. Raveau.

Physica C , 219, 407 (1994).

  1. Anisotropic superconducting properties of a Tl-2223 single crystal studied by transport measurements.

V. Hardy, A. Maignan, Ch. Goupil, J. Provost, Ch. Simon, C. Martin.

Superconducting Science and Technology, 7, 126 (1994).

  1. Magnetoresistance in Bi-2212 single crystal.

J. C. Soret, L. Ammor, B. Martinie, Ch. Goupil, V. Hardy, J. Provost, A. Ruyter, Ch. Simon.

Physica C , 220, 242 (1994).

  1. Irreversibility lines of Yb and Pb substituted Bi-2212 single crystals.

A. Ruyter, Ch. Simon, V. Hardy, M. Hervieu, A. Maignan.

Physica C, 225, 235 (1994).

  1. Magnetic properties of a Tl0.5Pb0.5Sr2CaCu2O7 single crystal.

A. Maignan, C. Martin, V. Hardy, Ch. Simon.

Physica C, 228, 323 (1994).

  1. Irreversibility line and critical current densities of the "1223" cuprate TlBa2Ca2Cu3O9 : a single crystal study.

A. Wahl, V. Hardy, A. Maignan, C. Martin, B. Raveau.

Cryogenics, 34, 941 (1994).

19.The fishtail effect in different Tl based single crystals. A possible interplay with the electronic anisotropy.

V. Hardy, A. Wahl, A. Ruyter, A. Maignan, C. Martin, L. Coudrier, J. Provost, Ch. Simon.

Physica C, 232, 347 (1994).

  1. Superconducting fluctuations in Tl-based single crystals : evidence of universal features and derivation of basic parameters.

A. Wahl, A. Maignan, C. Martin, V. Hardy, J. Provost, Ch. Simon.

Physical Review B, 51, 9123 (1995).

  1. Magnetic study of an overdoped "1223" system : TlBa0.8Sr1.2Ca2Cu3O9- single crystals.

A. Wahl, A. Maignan, V. Hardy, J. Provost, Ch. Simon, B. Raveau.

Physica C, 244, 341 (1995).

  1. Columnar defects and irreversibility lines in Tl-based superconductors.

A. Wahl, M. Hervieu, G. van Tendeloo, V. Hardy, J. Provost, D. Groult, Ch. Simon, B. Raveau.

Radiation Effects and Defects in Solids, 133, 293 (1995).

  1. Unusual field dependence of the reversible magnetization in heavy ions irradiated thallium based single crystals.

A. Wahl, V. Hardy, J. Provost, Ch. Simon, A. Buzdin.

Physica C, 250, 163 (1995).

  1. Swift heavy ions in insulating and conducting oxydes : Tracks and physical properties.

J. Provost, Ch. Simon, M. Hervieu, D. Groult, V. Hardy, F. Studer, M. Toulemonde.

Materials Research Society Bulletin, 20, 22 (1995).

  1. Splayed configurations of columnar defects in YBa2Cu3O7, (Tl,Bi)Sr2CaCu2O7 and Bi2Sr2CaCu2O8 single crystals : study of the enhanced pinning efficiencies for different characteristic angles.

V. Hardy, A. Ruyter, A. Wahl, A. Maignan, D. Groult, J. Provost, Ch. Simon, H. Noël.

Physica C, 257, 16 (1996).

  1. Accommodation of vortices to tilted line defects in high Tc superconductors with various electronic anisotropies.

V. Hardy, A. Wahl, S. Hébert, J. Provost, D. Groult, Ch. Simon, A. Ruyter.

Physical Review B, 54, 656 (1996).

  1. Single crystal study of the "1201" superconductor Hg0.8Bi0.2Ba2CuO4+.

D. Pelloquin, A. Maignan, A. Guesdon, V. Hardy, B. Raveau.

Physica C, 265, 5 (1996).

  1. Magnetic study of HgBa2Ca2Cu3O8+ single crystals : effect of doping on irreversibility and fishtail lines.

A. Maignan, S. N. Putilin, V. Hardy, Ch. Simon, B. Raveau.

Physica C, 266, 173 (1996).

29.Synthesis and characterization of single crystals of the superconductors Hg0.8Bi0.2Ba2Can1CunO2n+2+ (n=2, 3).

D. Pelloquin, V. Hardy, A. Maignan.

Physical Review B, 54, 16246 (1996).

  1. Scaling behavior of conductivity and magnetization in high-temperature superconductors.

A. Wahl, V. Hardy, F. Warmont, A. Maignan, M. P. Delamare, Ch. Simon.

Physical Review B, 55, 3929 (1997).

  1. Single crystals of the 96K superconductor (Hg,Cu)Ba2CuO4+ : growth, structure and magnetism.

D. Pelloquin, V. Hardy, A. Maignan, B. Raveau.

Physica C, 273, 205 (1997).

  1. Angle-resolved transport measurements in a Bi-2212 single crystal with inclined columnar defects : study of the directional effects.

F. Warmont, V. Hardy, Ch. Goupil, Ch. Simon, J. Provost, A. Ruyter.

Physica C, 277, 61 (1997).

  1. Flux line pinning and transport measurements in a Bi-2212 crystal in the presence of columnar defects.

C. Goupil, A. Ruyter, V. Hardy, Ch. Simon.

Physica C, 278, 23 (1997).

  1. Anisotropy of resistivity in Tl-based single crystals : Direct evidence for the influence of the blocking layers thickness and correlation with superconducting properties.

V. Hardy, A. Maignan, C. Martin, F. Warmont, J. Provost.

Physical Review B, 56, 130 (1997).

  1. Anisotropic resistivity measurements by a multiterminal transport method.

T. Aouaroun, V. Hardy, Ch. Goupil, F. Warmont, G. Villard, Ch. Simon.

Superconducting Science and Technology, 10, 572 (1997).

  1. Pillar defects, a new type of track in Pb irradiated Bi-2212 thin films : nanostructural study and influence on the irreversibility line.

S. Hébert, M. Hervieu, V. Hardy, T. Aouaroun, Ch. Simon, J. Provost, E. Milani, C. Aruta, G. Balestrino.

Nuclear Instruments and Methods in Physics Research B, 142, 319 (1998).

  1. Vortex pinning by different angular distributions of columnar defects in Bi2Sr2CaCu2O8

S. Hébert, V. Hardy, G. Villard, M. Hervieu, Ch. Simon, J. Provost.

Physical Review B, 57, 649 (1998).

  1. Electronic anisotropy of the superconducting (Tl2/3,Bi1/3)Sr2CaCu2Ox compound measured by angular resolved magnetoresistivity.

F. Warmont, V. Hardy, J. Provost, D. Grébille, Ch. Simon.

Physical Review B, 57, 7485 (1998).

  1. Anisotropy dependence of half-loop-mediated vortex motion in thallium-based superconductors studied by magnetoresistivity.

F. Warmont, Ch. Goupil, V. Hardy, Ch. Simon.

Physical Review B, 58, 132 (1998)

  1. Plastic vortex creep in the high-Tc superconductor (Tl2/3,Bi1/3)Sr2CaCu2Ox .

T. Aouaroun, V. Hardy, Ch. Simon.

Physica C, 294, 42 (1998).

  1. Pinning enhancement in Bi2Sr2CaCu2O8 by tilting columnar defects from the c axis.

S. Hébert, V. Hardy, G. Villard, M. Hervieu, Ch. Simon, J. Provost.

Physica C, 299, 259 (1998).

  1. Influence of the inclination of columnar defects on the reversible magnetization of high-Tc superconductors.

V. Hardy, S. Hébert, M. Hervieu, Ch. Simon, J. Provost, A. Wahl, A. Ruyter.

Physical Review B, 58, 15218 (1998).

  1. Improvement of the pinning properties of (Bi/Pb)-2223 textured ceramics by columnar defects introduced by 6 GeV Pb ions.

S. Hébert, J. Provost, V. Hardy, Ch. Simon, V. Plechacek, E. Pollert.

Czechoslovak Journal of Physics, 48, 981 (1998).

  1. C-axis magnetoconductivity of anisotropic superconducting single crystals : the density of states fluctuations scenario.

A. Wahl, D. Thopart, G. Villard, A. Maignan, V. Hardy, J. C. Soret, L. Ammor, A. Ruyter.

Physical Review B, 59, 7216 (1999).

  1. Vortex pinning by splayed columnar defects in YBa2Cu3O7 : Influence of large crossing angles.

V. Hardy, S. Hébert, C. Goupil, Ch. Simon, J. Provost, M. Hervieu, P. Lejay.

Physical Review B, 59, 8455 (1999).

  1. Large pinning efficiency of orthogonal columnar defects in a weakly anisotropic high-Tc superconductor.

S. Hébert, V. Hardy, Ch. Simon, J. Provost.

Physical Review B, 60, 13175 (1999).

  1. Magnetization steps near the irreversibility line in a mercury-based superconducting cuprate.

V. Hardy, A. Daignère, A. Maignan.

Physical Review B, 61, 3610 (2000).

  1. Effects of crossed columnar defects on vortex pinning in Bi2Sr2CaCu2O8

V. Hardy, S. Hébert, J. Provost, Ch. Simon.

European Physical Journal B, 16, 107 (2000).

  1. Modifications of pinning properties induced by introduction of columnar defects in a (Hg0.8Cu0.2)Ba2CuO4+ single crystal.

V. Hardy, A. Daignère, M. Hervieu, D. Pelloquin, J. Provost.

Physica C, 336, 271 (2000).

  1. Vortex pinning by a Gaussian splay of columnar defects in YBa2Cu3O7

V. Hardy, M. Hervieu, J. Provost, Ch. Simon, P. Lejay.

Physical Review B, 62, 691 (2000).

  1. Pinning by columnar defects in the anisotropic high-TC superconductor Bi-2212.

J. Provost, V. Hardy, Ch. Simon, M. Hervieu, D. Groult, S. Hébert.

International Journal of Inorganic Materials, 2, 635 (2000).

  1. Magnetotransport properties in Hg-1201 single crystals.

A. Daignère, A. Wahl, V. Hardy, A. Maignan.

Physica C, 349, 189 (2001).

  1. Low-temperature specific heat in Pr0.63Ca0.37MnO3 : phase separation and metamagnetic transition.

V. Hardy, A. Wahl, C. Martin, Ch. Simon.

Physical Review B, 63, 224403 (2001).

  1. Nanostructural study of the charge ordering vs. x and T in the Cr doped Pr0.5Ca0.5 Mn1-xCrxO3 manganites.

M. Hervieu, C. Martin, A. Barnabé, A. Maignan, R. Mahendiran, V. Hardy.

SolidState Sciences, 3, 391 (2001).

  1. Percolation transitions tuned by temperature, magnetic field, and time in a phase-separated manganite.

V. Hardy, A. Wahl, C. Martin.

Physical Review B, 64, 064402 (2001).

  1. Magnetic contributions to the low-temperature specific heat of the ferromagnetic insulator Pr0.8Ca0.2MnO3.

A. Wahl, V. Hardy, C. Martin, M. Hervieu, Ch. Simon.

Eur. Phys. J. B., 26, 135-140 (2002).

  1. Magnetic-Field-Induced Step-Like Transitions in Mn-site Doped Manganites.

S. Hébert, V. Hardy, A. Maignan, R. Mahendiran, M. Hervieu, C. Martin,B. Raveau.

J. SolidState Chem., 165, 6-11 (2002).

  1. Detailed study of the structural and magnetic transitions in Pr1-xSrxMnO3 single crystals (0.48 ≤ x ≤ 0.57).

Pollert E., Jirak Z., Hejtmanek J., Strejc A., Kuzel R., Hardy V.

J. Magn. Magn. Materials, 246, 1-2, 290-296, (2002).

  1. Avalanche-like field dependent magnetization of Mn-site doped charge-ordered manganites.

S. Hébert, A. Maignan, V. Hardy, C. Martin, M. Hervieu,B. Raveau.

Solid State Com., 122, 335-340 (2002).

  1. Magnetization and resistivity steps in the phase separated Pr0.5Ca0.5Mn1-xNixO3 manganites

S. Hébert, A. Maignan, V. Hardy, C. Martin, M. Hervieu, B. Raveau, R. Mahendiran, P. Schiffer.

Eur. Phys. J. B, 29, 419-424 (2002).

  1. Magnetism and transport in Pr1-xSrxMnO3 single crystals (0.48≤x≤0.57).

J. Hejtmanek, E. Pollert, Z. Jirak, D. Sedmidubsky, A.. Strejc, A.Maignan, C. Martin, V. Hardy, R. Kuzel,Y. Tomioka.

Phys. Rev. B 66, 014426 (2002)

  1. Magnetization jumps and thermal cycling effect induced by impurities in Pr0.6Ca0.4MnO3

A. Maignan, S. Hébert, V. Hardy, C. Martin, M. Hervieu, B. Raveau.

J. Phys. Cond. Matt., 14, 11809 (2002)

  1. Calorimetric and magnetic investigations of the metamagnet Pr0.5Ca0.5Mn0.95Ga0.05O3

V. Hardy, A. Maignan, S. Hébert, C. Martin.

Phys. Rev. B, 67, 024401 (2003).

  1. Metallicity and thermopower of a new misfit cobaltite[Bi2Ba1.8Co0.2O4]RS[CoO2]2

M. Hervieu, A. Maignan, C. Michel, V. Hardy, N. Créon, B. Raveau.

Phys. Rev. B 67, 045112 (2003)

  1. Specific heat and magnetization study on single crystals of the frustrated quasi-one-dimensional oxide Ca3Co2O6

V. Hardy, S. Lambert, M. R. Lees, D. McK. Paul

Phys. Rev. B 68, 014424 (2003).

  1. Staircase effect in metamagnetic transitions of charge and orbitally ordered manganites

V. Hardy, S. Hébert, A. Maignan, C. Martin, M. Hervieu, B. Raveau.

J. Magn. Magn. Mater. 264, 183-191 (2003).

  1. Specific heat investigation of the magnetic ordering in two frustrated spin-chain oxides: Ca3Co2O6 and Ca3CoRhO6

V. Hardy, M. R. Lees, A. Maignan, S. Hébert, D. Flahaut, C. Martin, D. McK Paul

J. Phys. Cond. Matt., 15, 1-10 (2003).

  1. Staircase-like metamagnetic transitions in phase-separated manganites: Influence of thermal and mechanical treatments

V. Hardy, C. Yaicle, S. Hébert, A. Maignan, C. Martin, M. Hervieu, B. Raveau.

J. Appl. Phys.94, 5316 (2003).

  1. Field dependence of the electronic phase separation in Pr0.67Ca0.33MnO3 by small angle magnetic neutron scattering

S. Mercone, V. Hardy, C. Martin, Ch. Simon, D. Saurel, A. Brûlet.

Phys. Rev. B 68, 094422 (2003).

  1. Magnetization steps in a non charge-ordered manganite, Pr0.5Ba0.5MnO3

C. Autret, A. Maignan, C. Martin, M. Hervieu, V. Hardy, S. Hébert, B. Raveau.

Appl. Phys. Lett. 82, 4746 (2003).

  1. A magnetic study of the one dimensional Sr3NiIrO6 compound

D. Flahaut, S. Hébert, A. Maignan, V. Hardy, C. Martin, M. Hervieu, M. Costes, B. Raquet, J. M. Broto.

Eur. Phys. J. B. 35, 317-323 (2003).

  1. Sharp magnetization steps induced by A-site substitutions in Pr0.5Ca0.5MnO3

B. Raveau, D. Zhu, A. Maignan, M. Hervieu, C. Martin, V. Hardy, S. Hébert.

J. Phys. Cond. Matt., 15, 7055-7062 (2003)

  1. Observation of spontaneous magnetization jumps in manganites

V. Hardy, A Maignan, S. Hébert, C. Yaicle, C. Martin, M. Hervieu, M. R. Lees, G. Rowlands, D. Mc K. Paul, B Raveau.

Phys. Rev. B 68 ,220402(R) (2003).

  1. Neutron scattering evidence for magnetic field driven abrupt magnetic and structural transitions in a phase separated manganite.

C. Yaicle, C. Martin, Z. Jirak, F. Fauth, G. André, E. Suard, A. Maignan, V. Hardy, R. Retoux, M. Hervieu, S. Hébert, B. Raveau, Ch. Simon, D. Saurel, A. Brûlet, F. Bourée.

Phys. Rev. B 68, 224412 (2003).

  1. Magnetization and heat capacity investigations in the unconventional spin chain compound Sr3CuPtO6

S. Majumdar, V. Hardy, M. R. Lees, D. McK. Paul, H. Rousselière, D. Grebille.

Phys. Rev. B 69, 024405 (2004).

  1. Field-Induced Magnetization Steps in Intermetallic Compounds and Manganese Oxides: The Martensitic Scenario

V. Hardy, S. Majumdar, S. Crowe, M. R. Lees, D. Mc K. Paul, L. Hervé, A. Maignan, S. Hébert, C. Martin, C. Yaicle, M. Hervieu, B. Raveau.

Phys. Rev. B 69, 020407(R) (2004).

  1. Control of the magnetic ground state by A-site substitution in Pr0.6Ca0.4MnO3 : impact upon the multistep-like behavior of magnetization

D. Zhu, B. Raveau, A. Maignan, M. Hervieu, V. Hardy, C. Martin.

J. Appl. Phys.95, 4245, (2004)

  1. Quantum tunneling of the magnetization in the Ising chain compound Ca3Co2O6

A. Maignan, V. Hardy, S. Hébert, M; Drillon, M. R. Lees, O. Petrenko, D. McK. Paul, D. Khomskii.

J. Mater. Chem. 14, 1231 (2004)

  1. Relationship between the onset of ferromagnetism and the training effect in CMR perovskite manganites

D. Zhu, V. Hardy, A. Maignan, B. Raveau.

J. Phys. Cond. Matt.16, L101 (2004)

  1. Spin Reorientation Associated with a Structural Transition in the Iron Oxycarbonate Sr4Fe2O6CO3

Y. Bréard, C. Michel, M. Hervieu, N. Nguyen, A. Ducouret, V. Hardy, A. Maignan, B. Raveau.

Chem. Mater. 16, 2895 (2004)

  1. Temperature and time dependence of the field-driven magnetization steps in Ca3Co2O6 single crystals

V. Hardy, M. R. Lees, O. A. Petrenko, D. McK. Paul, D. Flahaut, S. Hébert, A. Maignan

Phys. Rev. B 70, 064424 (2004).

  1. Chromium site selective substitution in Ca3Co2O6 : Influence on the magnetic properties of an Ising-like triangular lattice

D. Flahaut, A. Maignan, S. Hébert, C. Martin, R. Retoux, V. Hardy.

Phys. Rev. B. 70, 094418 (2004).

  1. Power-law distribution of avalanche sizes in the field-driven transformation of a phase-separated oxide.

V. Hardy, S. Majumdar, M. R. Lees, D. Mc K. Paul, C. Yaicle, M. Hervieu.

Phys. Rev. B. 70, 104423 (2004).

  1. Ga and Ba substitution in charge ordered Pr1-xCaxMnO3 : exceptional predisposition of x=0.43 to ferromagnetism

D. Zhu, B. Raveau, V. Hardy, A. Maignan, M. Hervieu, C. Martin.

J. Phys. Chem. Mater. 16, 1 (2004).

  1. Critical current-voltage scaling of heavy-ion-irradiated Bi2Sr2CaCu2O8+d and (K,Ba)BiO3 superconductors

A. Ruyter, V. Hardy, N. H. Hong, L. Ammor.

EuroPhys. Lett. 68 , 571 (2004).

  1. Magnetic quantum tunneling in Ca3Co2O6 studied by ac susceptibility: temperature and magnetic field dependence of the spin-relaxation time.

V. Hardy, D. Flahaut, M. R. Lees, O. A. Petrenko.

Phys. Rev. B. 70, 214439 (2004).

  1. Magnetic field induced percolation in Pr0.67Ca0.33MnO3 by small angle magnetic neutron scattering

Ch. Simon, S. Mercone, V. Hardy, C. Martin, D. Saurel, A. Brûlet.

J. Magn. Magn. Mater. 272 1383-1384 (2004).

  1. Influence of Ba substitution upon ferromagnetism in charge ordered Nd1-xCaxMnO3 : singular behaviour of x=0.43

C. Yaicle, B. Raveau, A. Maignan, V. Hardy, C. Martin,M. Hervieu.

J. Phys. Cond. Matt.17, 1019 (2005)

  1. Strongly correlated properties of the thermoelectric cobalt oxide Ca3Co4O9

P. Limelette, V. Hardy, P. Auban-Senzier, D. Jérome, D. Flahaut, S. Hébert, R. Frésard, Ch. Simon, J. Noudem, A. Maignan.

Phys. Rev. B. 71, 233108 (2005).

  1. Dynamic effects in one-dimensional A’3ABO6

M. Costes, J. M. Broto, B. Raquet, H. Rakoto, M. A. Novak, J. P. Sinnecker, S. Soriano, W. S. D. Folly, A. Maignan, V. Hardy.

J. Magn. Magn. Mater. 294, 123 (2005).

  1. Voltage noise and surface current fluctuations in the superconducting surface sheath

J. Scola, A. Pautrat, C. Goupil, L. Méchin, V. Hardy, Ch. Simon

Phys. Rev. B. 72, 012507 (2005).

  1. Negative magnetoresistance in Ba2CoS3

T. Baikie, V. Hardy, A. Maignan, M. G. Francesconi.

Chem. Commun., 5077 (2005).

  1. Single crystal neutron diffraction study of the magnetization process in Ca3Co2O6

O. A. Petrenko, J. Wooldridge, M. R. Lees, P. Manuel, and V. Hardy.

Eur. Phys. J. B. 47, 79 (2005).

  1. Magnetoresistance and magnetopower in the rhodium misfit oxide [Bi1.95Ba1.95Rh0.1O4][RhO2]1.8

Y. Klein, S. Hébert, D. Pelloquin, V. Hardy, A. Maignan

Phys. Rev. B. 73, 165121 (2006).

  1. High and low-temperature crystal and magnetic structures of ε-Fe2O3 and their correlation to its magnetic properties

M. Gich, C. Frontera, A. Roig, E. Taboada, E. Molins, H. R. Rechenberg, J. D. Adrisson, W. A. A. Macedo, C. Ritter, V. Hardy, J. Sort, V. Skumryev, J. Nogués.

Chem. Mater. 18, 3889 (2006).

  1. Nature of the ferromagnetism induced by nonmagnetic substitutions on the Ru site of CaRuO3

V. Hardy, B. Raveau, R. Retoux, N. Barrier, A. Maignan.

Phys. Rev. B. 73, 094418 (2006).

  1. Magnetic coupling and long-range order in the spin-chain sulfide Ba2CoS3

A. D. J. Barnes, T. Baikie, V. Hardy, M. B. Lepetit, A. Maignan, N. A. Young, M. G. Francesconi.

J. Mater. Chem. 16, 3489 (2006).

  1. Ferromagnetism induced by chromium substitutionin the CaRuO3 perovskite

A. Maignan, B. Raveau, V. Hardy, N. Barrier, R. Retoux.

Phys. Rev. B. 74, 024410 (2006).

  1. Magnetism of the geometrically frustrated spin-chain compound Sr3HoCrO6

: Magnetic and heat capacity measurements and neutron powder diffraction

V. Hardy, C. Martin, G. Martinet, G. André.

Phys. Rev. B. 74, 064413 (2006).

  1. Scaling Behavior in Thermoelectric Misfit Cobalt Oxides

P. Limelette, S. Hébert, V. Hardy, R. Frésard, Ch. Simon, A. Maignan.

Phys. Rev. Lett. 97, 046601 (2006).

  1. Valence, spin, and orbital state of Co ions in one-dimensional Ca3Co2O6 : An x-ray absorption and magnetic circular dichroism study

T. Burnus, Z. Hu, M. W. Haverkort, J. C. Cezar, D. Flahaut, V. Hardy, A. Maignan, N. B. Brookes, A. Tanaka, H; H. Hsieh, H. J. Lin, C. T. Chen, L. H. Tjeng.

Phys. Rev. B. 74, 245111 (2006).

  1. Anisotropic susceptibility of the geometrically frustrated spin-chain compound Ca3Co2O6

V. Hardy, D. Flahaut, R. Frésard, A. Maignan.

J. Phys. Cond. Matt.19, 145229 (2007)

  1. Spin-glass state induced by cobalt substitution in CaRuO3

Y. Bréard, V. Hardy, B. Raveau, A. Maignan, H.-J. Lin, L-Y Jang, H. H. Hsieh, C. T. Chen.

J. Phys. Cond. Matt.19, 216212 (2007)

104.Colossal magnetoresistance manganites: importance of the cooperative phenomena

A. Maignan, C. Martin, S. Hébert, V. Hardy.

J. Matt. Chem.17, 5023(2007)

105.Magneto-structural instability in Ni2Mn1.4Sb0.6 alloy

S. Chatterjee, S. Giri, S. Majumdar, A. K. Deb, S. K. De, V. Hardy.

J. Phys. Cond. Matt.19, 346213 (2007)

106.Phase diagram of the spinel oxide MnV2O4

V. Hardy, Y. Bréard, C. Martin.

Phys. Rev. B. 78, 024406 (2008).

107.Structural and magnetic properties of CuCr1-xMgxO2 by neutron powder diffraction

M. Poienar, F. Damay, C. Martin, V. Hardy, A. Maignan, G. André.

Phys. Rev. B. 79, 014412 (2009).

108.Derivation of the heat capacity anomaly at a first-order transition by using a semi-adiabatic relaxation technique

V. Hardy, Y. Bréard, C. Martin.

J. Phys. Cond. Matt.21, 075403 (2009).

109.Increase in magnetoresistivity in Ba2CoS3 via Zn2+/Co2+ substitution

M. R. Harrison, V. Hardy, A. Maignan, M. G. Francesconi.

Chem. Comm. 16, 2214 (2009).

110.Magnetic structure of CaBaCo4O7 : Lifting of geometrical frustration towards ferrimagnetism.

V. Caignaert, V. Pralong, V. Hardy, C. Ritter, B. Raveau.

Phys. Rev. B. 81, 094417 (2010).

111.Zigzag ladders with staggered magnetic chirality in the S=3/2 compound  -CaCr2O4

F. Damay, C. Martin, V. Hardy, A. Maignan, G. André, K. Knight, S. R. Giblin, L. C. Chapon

Phys. Rev. B. 81, 214405 (2010).

112.Coexistence of inverse and normal magnetocaloric effect in A-site

Q. Zhang,F. Guillou, A. Wahl, Y. Bréard, and V. Hardy

Appl. Phys. Lett. 96, 242506 (2010).

113.On the derivation of the magnetocaloric properties in ferrimagnetic spinel Mn3O4

S. Thota, F. Guillou, V. Hardy , A. Wahl, and W. Prellier

J. Appl. Phys. 109, 053902 (2011).

114.Magnetocaloric effect and improved relative cooling power in(La0.7Sr0.3MnO3/SrRuO3) superlattices

Q. Zhang,S. Thota,F. Guillou,P. Padhan,V. Hardy,A. Wahland W. Prellier.

J. Phys. Cond. Matt. 23, 052201 (2011)

115.Helical magnetic state in the distorted triangular lattice of -CaCr2O4

L.C. Chapon,P.Manuel,F.Damay, P.Toledano,V.Hardy, andC.Martin

Phys. Rev. B. 83, 024409 (2011).

116.Magnetic transitions in Mn3O4 and an anomaly at 38 K in magnetization and specific heat

F. Guillou, S. Thota, W. Prellier, J. Kumar, and V. Hardy

Phys. Rev. B 83, 094423 (2011).

117.The spin glass delafossite CuFe0.5V0.5O2:a dipolar glass?

Kiran Singh, Antoine Maignan, Charles Simon, Vincent Hardy,Elise Pachoud and Christine Martin

J. Phys. Cond. Matt. 23, 126005 (2011).

118.Magnetoelastic coupling and unconventional magnetic ordering in the multiferroic triangular lattice AgCrS2

F. Damay,C. Martin,V. Hardy, G. André,S. Petit,and A. Maignan

Phys. Rev. B 83, 184413 (2011).

119. Quantum gapped spin excitations in the S =3/2 zigzag ladder compound β-CaCr2O4

F. Damay,C. Martin,V. Hardy,A. Maignan,C. Stock,and S. Petit.

Phys. Rev. B 84, 020402(R) (2011).

120.Investigation of the magnetocaloric effect in double distorted perovskites

Ca(Cu3-xMnx)Mn4O12 (1 ≤ x ≤ 2): From standard ferrimagnetism to glassy ferrimagnetism

Q. Zhang, Y. Bréard, F. Guillou, and V. Hardy.

Phys. Rev. B 84, 224430 (2011).

121. Revisiting the properties of delafossite CuCrO2: A single crystal study

M. Poienar, V. Hardy, B. Kundys, K. Singh, A. Maignan, F. Damay, C. Martin

J. Solid State Chem. 185, 56 (2012)

122.Development of a new magnetocaloric material used in a magnetic refrigeration device

F. Guillou, U. Legait, A. Kedous-Lebouc and V. Hardy

EMM-FM 2011 - EPJ Web of Conf. (2012)

123.Ordering process and ferroelectricity in a spinel derived from FeV2O4

Q. Zhang, K. Singh, F. Guillou, C. Simon, Y. Breard, V. Caignaert and V. Hardy

Phys. Rev. B 85, 054405 (2012).

124.Calorimetric investigation of the magnetocaloric effect in Ni45Co5Mn37.5In12.5

F. Guillou, P. Courtois, L. Porcar, D. Bourgault, and V. Hardy

J. Phys. D:Appl. Phys.45, 255001 (2012)

125.Magnetic dilution and steric effects in the multiferroic delafossite CuCrO2

E. Pachoud,K. Singh,Y. Bréard,C. Martin,G. André,V. Hardy, Ch. Simon, and A. Maignan.

Phys. Rev. B 86, 054437 (2012).

126.Revisiting some chalcogenides forthermoelectricity

A. Maignan, E. Guilmeau, F. Gascoin, Y. Bréard, and V. Hardy.

Sci. Technol. Adv. Mater. 13, 053003 (2012).

127.Magnetic couplings and spin ordering in layered chromites of the series -ACr2O4 (A=Ca, Sr, Ba)

V. Hardy, C. Martin, F. Damay, and G. André.

J. Magn. Magn. Mater. 330, 111 (2013).

128.Coupled valence and spin state transition in (Pr0.7Sm0.3)0.7Ca0.3CoO3

F. Guillou, Q. Zhang,Z. Hu, C. Y. Kuo, Y.Y. Chin, H.J. Lin, C. T. Chen, A. Tanaka, L.H. Tjeng, and V. Hardy.

Phys. Rev. B 87, 115114 (2013).

129.Jumps in entropy and magnetic susceptibility at the valence and spin-state transition in a cobalt oxide

V. Hardy, F. Guillou, and Y. Bréard

J. Phys. Cond. Matt. 25, 246003 (2013).

130.An experimental comparison of four magnetocaloric regenerators using three different materials

U. Legait, F.Guillou, A. Kedous-Lebouc, V. Hardy, and M. Almanza.

International Journal of Refrigeration 37, 147 (2013)

131.Cobalt spin state above the valence and spin-state transition in (Pr0.7Sm0.3)0.7Ca0.3CoO3

F. Guillou, Y. Bréard and V. Hardy.

Solid State Science 24, 120 (2013).

132.Determination of the magnetocaloric entropy change in presence of phase separation and metastability: the case of Eu0.58Sr0.42MnO3

F. Guillou, V. Hardy, D. Fruchart and B. Zawilski

J. Magn. Magn. Mater. 363, 145 (2014).