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Accueil du site > Divers > Equipe 3- PSOM > Vincent HARDY

Vincent HARDY

15 septembre 2017

Vincent HARDY
Research Director CNRS

contact :
Phone : 02 31 45 29 13

(33 231 452 913 from abroad))

e-mail : vincent.hardy@ensicaen.fr

Activities

Experimentalist in solid state physics
Properties : Magnetic, transport and calorimetric measurements
Materials : Mainly oxides
Topics : All what is related to “exotic” behaviors, but I also take part in more applicative studies on so-called “functional” materials (when both aspects are present together, it is the best)

Examples
Old ones : Vortex pinning in high-Tc cupratesPhase separation in manganites.
Still active : Low-dimensional magnetismGeometrical frustrationDisorder effects.
Most recent : Magnetocaloric properties Field-induced transitionsValence and spin-state transitions.

Some curves illustrating the type of studies I do : “ScientificPatchwork

Mini CV

1987-1988 : Researcher (CROUZET Ldt, Valence)
1988-1989 : Teacher in secondary schools (Argentan)
1989-1992 : Ph. D (CRISMAT, Caen)
1992-2004 : CNRS Research Scientist (CRISMAT, Caen)
2002-2003 : EPSRC Visiting Fellow (Superconductivity Magnetism Group, Physics Department, University of Warwick)
2004-present : CNRS Research Director (CRISMAT, Caen)

The last ten papers

Superexchange Interactions between Fe-3d and Ln-4f States : Long Range Antiferromagnetism in Perovskite Derivatives Ba3LnFe2O7.5
Asish K Kundu, Vincent Caignaert, Vincent Hardy, and Bernard Raveau.
J. Mater. Chem. C 5, 7236 (2017).

Single-Ion and Single-Chain Magnetism in Triangular Spin-Chain Oxides
Md. Motin Seikh, Vincent Caignaert, Olivier Perez, Bernard Raveau and Vincent Hardy.
Phys. Rev. B 95, 174417 (2017).

Valence and spin-state transition in cobaltates revisited by x-ray magnetic circular dichroism
F. Guillou, K. Kummer, Y. Bréard, L. Hervé, and V. Hardy.
Phys. Rev. B 95, 174445 (2017).

Morin-like spin canting in the magnetic CaFe5O7 ferrite : A combined neutron and Mössbauer study
C. Delacotte, Y. Bréard, V. Caignaert, V. Hardy, J. M. Greneche, S. Hébert, E. Suard and D. Pelloquin.
J. Solid State Chem. 247, 13 (2017).

Structure and Electronic Properties of the One-Dimensional Ba2Co1-xZnxS3 Series.
M. R. Harrison, A. Maignan, V. Hardy, O. I. Lebedev, N. A. Young and M. G. Francesconi.
Inorg. Chem. 56, 213 (2017).

Phase transitions and magnetic structures in MnW1-xMoxO4 compounds (x = 0.2).
V. Hardy, C. Payen, F. Damay, L. Meddar, M. Josse, and G. André.
J. Phys. Condens. Matter 28, 336003 (2016).

Impact of densification on microstructure and transport properties of CaFe5O7
C. Delacotte, S. Hébert , V. Hardy , Y. Bréard , R. Maki , T. Mori , and D. Pelloquin.
Solid State Science 54, 54 (2016).

Interplay between 3d-3d and 3d-4f interactions at the origin of the magnetic ordering in the Ba2LnFeO5oxides.
A. K. Kundu, V. Hardy, V. Caignaert, and B. Raveau
J. Phys. Condens. Matter 27, 486001 (2015).

Entropy change of a Ni45.5Co4.5Mn37In 13 single crystal studied by scanning calorimetry in high magnetic fields : Field dependence of the magnetocaloric effect
D. Bourgault, L. Porcar, S. Rivoirard, P. Courtois, and V. Hardy
Applied Physics Letters 107, 092403 (2015).

Random dilution effects in the frustrated spin chain ß-CaCr2-xScxO4
M. Songvilay, S. Petit, V. Hardy, J. P. Castellan, G. André, C. Martin, and F. Damay.
Phys. Rev. B 91, 054408 (2015).

List of publications