Birthdate: 9^th June 1970, Argenteuil (Val d'Oise, France)

1993: Degree in Physics (Universities of Rennes and Grenoble)

1993-1997: Thèse de Doctorat (PhD) at the Joseph-Fourier University of Grenoble and High Magnetic Field Laboratory CNRS-MPI (France)
Topic: Experimental study of the antiferromagnetic Spin-1/2 Heisenberg ladder Cu₂(C₅H₁₂N₂)₂Cl₄
Supervisor : Professor Laurent.P. Lévy

1998-2000: TMR "Marie-Curie" Postdoctoral position at ISIS, UK
Topic: Inelastic neutron scattering studies of magnetic excitations and fluctuations in GMR manganites;
collaboration with T.G. Perring and G. Aeppli. 

Spin clusters with "single molecular magnet" behaviour.
Study using inelastic neutron scattering and EPR

Low dimensional magnetism (spin chains and ladders).
Study using NMR and high-field magnetisation

Manganites exhibiting Giant Magnetoresistance (GMR) effect.

G. Chaboussant, M.-H. Julien, Y. Fagot-Revurat, M. E. Hanson, L. P. Lévy, C. Berthier, M. Horvatic and O. Piovesana;
Zero Temperature Phase Transitions in Spin ladders: Phase Diagram and Dynamical Studies of Cu₂(C₅H₁₂N₂)₂Cl₄
European Physical Journal, B6, 167 (1998).

G. Chaboussant, Y. Fagot-Revurat, M.-H. Julien, M. E. Hanson, C. Berthier, M. Horvatic, L. P. Lévy and O. Piovesana;
NMR study of the S=1/2 Heisenberg Ladder Cu₂(C₅H₁₂N₂)₂Cl₄: Quantum Phase Transition and Critical Dynamics
Physical Review Letters, 80, 2713 (1998)

G. Chaboussant, M.-H. Julien, Y. Fagot-Revurat, L. P. Lévy, C. Berthier, M. Horvatic and O. Piovesana;
Identification of Nuclear Relaxation Processes in a Gapped Quantum Magnet: ¹H NMR in the S=1/2 Heisenberg Ladder Cu₂(C₅H₁₂N₂)₂Cl₄
Physical Review Letters, 79, 925 (1997)

G. Chaboussant, P. A. Crowell, L. P. Lévy, O. Piovesana, A. Madouri and D. Mailly;
Experimental Phase Diagram of Cu₂(C₅H₁₂N₂)₂Cl₄ : a Quasi-1D Antiferromagnetic Spin-1/2 Heisenberg Ladder
Physical Review, B55, 3046 (1997)

P. A. Crowell, A. Madouri, M. Specht, G. Chaboussant, D. Mailly and L. P. Lévy;
Torsional Oscillator magnetometer for High Magnetic Fields
Rev. Sci. Instrum., 67, 4161 (1996)

R. Calemczuk, J. Riera, D. Poilblanc, J.-P. Boucher, G. Chaboussant, L. P. Lévy and O. Piovesana;
Thermodynamics Properties of the Spin-1/2 Antiferromagnetic Ladder Cu₂(C₅H₁₂N₂)₂Cl₄ under magnetic field
European Physical Journal, B7, 171 (1999)

G. Chaboussant, T. G. Perring, G. Aeppli, and Y. Tokura;
Spin Waves in the Two-Dimensional Colossal-magnetoresistive Ferromagnet La_1.2Sr_1.8Mn₂O₇
Physica B, 276-278, 801 (2000).

G. Chaboussant, M.-H. Julien, Y. Fagot-Revurat, H. Mayaffre, M. Horvatic, L. P. Lévy, C. Berthier and O. Piovesana;
High-field magnetic phases of a two-leg spin ladder : Cu₂(C₅H₁₂N₂)₂Cl₄
Physica B, 280, 315 (2000).

C. Berthier, M. Horvatic, Y. Fagot-Revurat, M.-H. Julien, G. Chaboussant, H. Mayaffre, L. P. Lévy and P. Ségransan;
High Magnetic Field Studies of Quantum Spin Chains and Ladders
Journal of the Physical Society of Japan, (2000), in press

G. Chaboussant, T. G. Perring, G. Aeppli, and Y. Tokura;
Spin Wave Properties in the Two-Dimensional Ferromagnet Manganite La_1.2Sr_1.8Mn₂O₇
Phys. Rev. Lett.., in preparation for submission

G. Chaboussant, R. Basler, A. Sieber, S. T. Ochsenbein, A. Desmedt, R. E. Lechner, M. T. F. Telling, P. Kögerler, A. Müller and H. U. Güdel
Low-energy spin excitations in the molecular magnetic cluster V₁₅
Europhys. Lett. 59, 291-297 (2002)      Abstract     

Ralph Schenker, Michael N. Leuenberger, Grégory Chaboussant, Hans U. Güdel and Daniel Loss
Butterfly hysteresis and slow relaxation of the magnetization in (Et₄N)₃Fe₂F₉: manifestations of a single-molecule magnet
Chem. Phys. Lett. 358, 413-418 (2002)      Abstract     

Ralph Schenker, Høgni Weihe, Hanspeter Andres, Reto Basler, Grégory Chaboussant, Kirsten Michelsen, Michael Aebersold, Herma Büttner and Hans U. Güdel
Competing Interactions in the Tetranuclear Spin Cluster {Ni[(OH)₂Cr(bispictn)]₃}I₅·5H₂O. An Inelastic Neutron Scattering and Magnetic Study
Inorg. Chem. 41, 4266-4274 (2002)      Abstract     

Reto Basler, Grégory Chaboussant, Andreas Sieber, Hanspeter Andres, Mark Murrie, Paul Kögerler, Hartmut Bögge, Debbie C. Crans, Erich Krickemeyer, Stefan Janssen, Hannu Mutka, Achim Müller and H. U. Güdel
Inelastic Neutron Scattering on Three Mixed-Valence Dodecanuclear Polyoxovanadate Clusters
Inorg. Chem. 41, 5675-5685 (2002)      Abstract     

Hanspeter Andres, Reto Basler, Alexander J. Blake, Cyril Cadiou, Gregory Chaboussant, Craig M. Grant, Hans-Ulrich Güdel, Mark Murrie, Simon Parsons, Carley Paulsen, Fabrizzio Semadini, Vincent Villar, Wolfgang Wernsdorfer and Richard E. P. Winpenny
Studies of a Nickel-Based Single-Molecule Magnet
Chem. Eur. J. 8, 4867-4876 (2002)      Abstract           

Juan M. Clemente-Juan, Eugenio Coronado, Alejandro Gaita-Ariño, Carlos Giménez-Saiz, Grégory Chaboussant, Hans-Ulrich Güdel, Ramón Burriel and Hannu Mutka
Magnetism in Polyoxometalates: Anisotropic Exchange Interactions in the Co^II₃ Moiety of [Co₃W(D₂O)₂(ZnW₉O₃₄)₂]^12- - A Magnetic and Inelastic Neutron Scattering Study
Chem. Eur. J. 8, 5701-5708 (2002)      Abstract     

R. Basler, G. Chaboussant, H. Andres, P. Kögerler, E. Krickemeier, H. Bögge, H. Mutka, A. Müller and H.-U. Güdel
Inelastic neutron scattering on a mixed-valence dodecanuclear polyoxovanadate cluster
Appl. Phys. A 74, S734-S736 (2002)      Abstract     

R. Basler, G. Chaboussant, C. Cañada-Vilalta, G. Christou, H. Mutka, S. Janssen, F. Altorfer and H.-U. Güdel
Magnetic and inelastic neutron scattering studies of a frustrated tetranuclear Mn³⁺ butterfly-type cluster
Polyhedron 22, 2471-2479 (2003)      Abstract     

Reto Basler, Colette Boskovic, Grégory Chaboussant, Hans U. Güdel, Mark Murrie, Stefan T. Ochsenbein and Andreas Sieber
Molecular Spin Clusters: New Synthetic Approaches and Neutron Scattering Studies
Chem. Phys. Chem. 4, 910-926 (2003)      Abstract           

Stefan T. Ochsenbein, Grégory Chaboussant, Andreas Sieber, Hans U. Güdel, Stefan Janssen, Albert Furrer and J. Paul Attfield
Magnetic cluster excitations in the antiferromagnetic phase of a-MnMoO₄
Phys. Rev. B 68, 092410/1-4 (2003)      Abstract     

G. Chaboussant, S. T. Ochsenbein, A. Sieber, H.-U. Güdel, H. Mutka, A. Müller and B. Barbara
Mechanism of ground-state selection in the frustrated molecular spin cluster V₁₅
Europhys. Lett. 66, 423-429 (2004)      Abstract     

G. Chaboussant, S. T. Ochsenbein, A. Sieber, R. Bircher, H.-U. Güdel, B. Barbara, A. Müller and H. Mutka
Magnetic field reveals nature of quantum spin state in the molecular spin cluster V₁₅
ILL Annual Report 2003, 18-19 (2004)      Abstract     

Colette Boskovic, Andreas Sieber, Grégory Chaboussant, Hans U. Güdel, Jürgen Ensling, Wolfgang Wernsdorfer, Antonia Neels, Gael Labat, Helen Stoeckli-Evans and Stefan Janssen
Synthesis and Characterization of a New Family of Bi-, Tri-, Tetra-, and Pentanuclear Ferric Complexes
Inorg. Chem. 43, 5053-5068 (2004)      Abstract                 

Grégory Chaboussant, Reto Basler, Hans-Ulrich Güdel, Stefan Ochsenbein, Andrew Parkin, Simon Parsons, Gopalan Rajaraman, Andreas Sieber, Andrew A. Smith, Grigore A. Timco and Richard E. P. Winpenny
Nickel pivalate complexes: structural variations and magnetic susceptibility and inelastic neutron scattering studies
Dalton Trans. 2758-2766 (2004)      Abstract     

G. Chaboussant, R. Basler, A. Sieber, S. T. Ochsenbein and H.-U. Güdel
Neutron scattering studies of magnetic molecular spin clusters
Physica B 350, e51-e54 (2004)      Abstract     

G. Chaboussant, A. Sieber, S. Ochsenbein, H.-U. Güdel, M. Murrie, A. Honecker, N. Fukushima and B. Normand
Exchange interactions and high-energy spin states in Mn₁₂-acetate
Phys. Rev. B 70, 104422/1-16 (2004)      Abstract     

Andreas Sieber, Grégory Chaboussant, Roland Bircher, Colette Boskovic, Hans U. Güdel, George Christou and Hannu Mutka
Pressure dependence of the magnetic anisotropy in the single-molecule magnet Mn₄O₃Br(OAc)₃(dbm)₃
Phys. Rev. B 70, 172413/1-4 (2004)      Abstract     

G. Chaboussant, S. T. Ochsenbein, A. Sieber, H.-U. Güdel, B. Barbara, A. Müller and H. Mutka
Probing mixing of quantum spin states in frustrated molecular magnets with neutron scattering
Phys. Stat. Sol. C 1, 3399-3401 (2004)      Abstract     

Roland Bircher, Grégory Chaboussant, Andreas Sieber, Hans U. Güdel and Hannu Mutka
Transverse magnetic anisotropy in Mn₁₂ acetate: Direct determination by inelastic neutron scattering
Phys. Rev. B 70, 212413/1-4 (2004)      Abstract     

Reto Basler, Andreas Sieber, Grégory Chaboussant, Hans U. Güdel, Nicole E. Chakov, Monica Soler, George Christou, Arnaud Desmedt and Ruep Lechner
Inelastic Neutron Scattering Study of Electron Reduction in Mn₁₂ Derivatives
Inorg. Chem. 44, 649-453 (2005)      Abstract     

A. Honecker, N. Fukushima, B. Normand, G. Chaboussant and H.-U. Güdel
Exchange constants and spin dynamics in Mn₁₂-acetate
J. Magn. Magn. Mater. 290-291, 966-969 (2005)      Abstract     

Andreas Sieber, Colette Boskovic, Roland Bircher, Oliver Waldmann, Stefan T. Ochsenbein, Grégory Chaboussant, Hans U. Güdel, Nadeschda Kirchner, Joris van Slageren, Wolfgang Wernsdorfer, Antonia Neels, Helen Stoeckli-Evans, Stefan Janssen, Fanni Juranyi and Hannu Mutka
Synthesis and Spectroscopic Characterization of a New Family of Ni₄ Spin Clusters
Inorg. Chem. 44, 4315-4325 (2005)      Abstract                 

Andreas Sieber, Roland Bircher, Oliver Waldmann, Graham Carver, Grégory Chaboussant, Hannu Mutka and Hans-Ulrich Güdel
Effect of Pressure on the Magnetic Anisotropy in the Single-Molecule Magnet Mn₁₂-Acetate: An Inelastic Neutron Scattering Study
Angew. Chem. Int. Ed. 44, 4239-4242 (2005)      Abstract           
Angew. Chem. 117, 4311-4314 (2005)      Abstract           

Ralph Schenker, Michael N. Leuenberger, Grégory Chaboussant, Daniel Loss and Hans U. Güdel
Phonon bottleneck effect leads to observation of quantum tunneling of the magnetization and butterfly hysteresis loops in (Et₄N)₃Fe₂F₉
Phys. Rev. B 72, 184403/1-10 (2005)      Abstract     

Roland Bircher, Grégory Chaboussant, Stefan T. Ochsenbein, Felix Fernandez-Alonso, Hans U. Güdel and Euan K. Brechin
Inelastic neutron scattering study of undeuterated [Mn₉O₇(OAc)₁₁(thme)(py)₃(H₂O)₂]
Polyhedron 24, 2455-2458 (2005)      Abstract     

Roland Bircher, Grégory Chaboussant, Chris Dobe, Hans U. Güdel, Stefan T. Ochsenbein, Andreas Sieber and Oliver Waldmann
Single-Molecule Magnets Under Pressure
Adv. Funct. Mater. 16, 209-220 (2006)      Abstract     

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