Theory of the orbital-selective Mott transition in ferromagnetic YTiO{sub 3} under high pressure

Journal Article · Fri Feb 15 04:00:00 EST 2008 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.77.075108· OSTI ID:21143087

Craco, L; Leoni, S; Rosner, H ^[1]; Laad, M S ^[2]

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1. Max-Planck-Institut fuer Chemische Physik fester Stoffe, 01187 Dresden (Germany)
2. Max-Planck-Institut fuer Physik komplexer Systeme, 01187 Dresden (Germany)

We explore the effect of pressure on the electronic properties of the ferromagnetic Mott-Hubbard insulator YTiO{sub 3}. We show that the pressure-induced insulator-metal transition is accompanied by anisotropic structural changes driven by the competition between strongly orbital dependent one-electron hopping and strong, multiorbital electronic correlations in the real crystal structure of YTiO{sub 3}. Our results are relevant for the general understanding of the intricate and interdependent changes in the orbital and magnetic structure of correlated ferromagnetic insulators showing Mott transitions.

• OSTI ID: 21143087
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 7 Vol. 77; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANISOTROPY
COMPETITION
CORRELATIONS
CRYSTAL STRUCTURE
DIELECTRIC MATERIALS
ELECTRONIC STRUCTURE
ELECTRONS
FERROMAGNETIC MATERIALS
METALS
OXYGEN COMPOUNDS
PRESSURE RANGE MEGA PA 10-100
SIMULATION
TITANIUM COMPOUNDS
YTTRIUM COMPOUNDS