Frustrated Quantum Frustrated Quantum Magnets in Strong Magnets in Strong Magnetic Fields Magnetic Fields F. Mila F. Mila Institute of Theoretical Physics Institute of Theoretical Physics Ecole Polytechnique F Ecole Polytechnique F édérale de édérale de Lausanne Lausanne Switzerland Switzerland
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Frustrated Quantum Magnets in Strong Magnetic Fields
Frustrated Quantum Magnets in Strong Magnetic Fields. F. Mila Institute of Theoretical Physics Ecole Polytechnique F édérale de Lausanne Switzerland. Collaborators. Theorists. S. Miyahara (Lausanne Tokyo) F. Becca (Lausanne Trieste) B. Kumar (Lausanne). Experimentalists. - PowerPoint PPT Presentation
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Frustrated Quantum Frustrated Quantum Magnets in StrongMagnets in Strong
Magnetic FieldsMagnetic Fields
F. MilaF. MilaInstitute of Theoretical PhysicsInstitute of Theoretical Physics
Ecole Polytechnique FEcole Polytechnique Fédérale de édérale de LausanneLausanne
SwitzerlandSwitzerland
CollaboratorsCollaboratorsTheorists
S. Miyahara (Lausanne Tokyo)F. Becca (Lausanne Trieste)B. Kumar (Lausanne)
ExperimentalistsM. Takigawa, K. Kodama (ISSP, Tokyo)C. Berthier, M. Horvatic (Grenoble)Chemists
H. Kageyama, Y. Ueda (ISSP, Tokyo)
ScopeScope• Introduction to Frustrated Quantum MagnetsIntroduction to Frustrated Quantum Magnets
Magnetization of SrCu2(BO3)2:Remarkably rich and complex behaviour
• Triplet reduced mobility and repulsion Triplet reduced mobility and repulsion Magnetization plateausMagnetization plateaus
• Intra-dimer DM interaction Intra-dimer DM interaction Staggered magnetization Staggered magnetization Early raise of uniform magnetization Early raise of uniform magnetization Persistence of gap Persistence of gap
OpenOpen issuesissues
• Magnetization jump before 1/8 plateau?Magnetization jump before 1/8 plateau?• Difference of behaviour below and Difference of behaviour below and
above 1/8 plateau?above 1/8 plateau?• Consequences of correlated hopping?Consequences of correlated hopping? Pairing?Pairing?• Dip of the gap just before plateau?Dip of the gap just before plateau?