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Article Dans Une Revue Physical Review Letters Année : 2010

Inequivalent routes across the Mott transition in V2O3 explored by X-ray absorption

A. Tanaka
  • Fonction : Auteur
J.-P. Itié
  • Fonction : Auteur
F. Baudelet
  • Fonction : Auteur
M. Marsi

Résumé

The changes in the electronic structure of V2O3 across the metal-insulator transition induced by temperature, doping and pressure are identified using high resolution x-ray absorption spectroscopy at the V pre K-edge. Contrary to what has been taken for granted so far, the metallic phase reached under pressure is shown to differ from the one obtained by changing doping or temperature. Using a novel computational scheme, we relate this effect to the role and occupancy of the a1g orbitals. This finding unveils the inequivalence of different routes across the Mott transition in V2O3
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Dates et versions

hal-00443878 , version 1 (04-01-2010)

Identifiants

Citer

F. Rodolakis, P. Hansmann, J.-P. Rueff, A. Toschi, M.W. Haverkort, et al.. Inequivalent routes across the Mott transition in V2O3 explored by X-ray absorption. Physical Review Letters, 2010, 104, pp.047401. ⟨10.1103/PhysRevLett.104.047401⟩. ⟨hal-00443878⟩
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