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

F. Rodolakis; P. Hansmann; J. -P. Rueff; A. Toschi; M. W. Haverkort; G. Sangiovanni; A. Tanaka; T. Saha-Dasgupta; O. K. Andersen; K. Held; M. Sikora; I. Alliot; J. -P. Itié; F. Baudelet; P. Wzietek; P. Metcalf; M. Marsi

doi:10.1103/PhysRevLett.104.047401

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

Strongly Correlated Electrons 2010-09-17 v1

Authors: F. Rodolakis , P. Hansmann , J. -P. Rueff , A. Toschi , M. W. Haverkort , G. Sangiovanni , A. Tanaka , T. Saha-Dasgupta , O. K. Andersen , K. Held , M. Sikora , I. Alliot , J. -P. Itié , F. Baudelet , P. Wzietek , P. Metcalf , M. Marsi

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

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

Keywords

Mott transition V2O3 x-ray absorption spectroscopy electronic structure a1g orbital

Cite

@article{arxiv.1001.0477,
  title  = {Inequivalent routes across the Mott transition in V2O3 explored by X-ray absorption},
  author = {F. Rodolakis and P. Hansmann and J. -P. Rueff and A. Toschi and M. W. Haverkort and G. Sangiovanni and A. Tanaka and T. Saha-Dasgupta and O. K. Andersen and K. Held and M. Sikora and I. Alliot and J. -P. Itié and F. Baudelet and P. Wzietek and P. Metcalf and M. Marsi},
  journal= {arXiv preprint arXiv:1001.0477},
  year   = {2010}
}

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

Abstract

Keywords

Cite

Related papers