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24 April 2024 |
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Orbitally-driven Behavior: Mott Transition, Quantum Oscillations and Colossal Magnetoresistance in Bilayered Ca3Ru2O7 | | G. Cao
; X.N. Lin
; L. Balicas
; S. Chikara
; J.E. Crow
; P. Schlottmann
; | | Date: |
23 Jul 2004 | | Subject: | Strongly Correlated Electrons | cond-mat.str-el | | Abstract: | We report recent transport and thermodynamic experiments over a wide range of temperatures for the Mott-like system Ca3Ru2O7 at high magnetic fields, B, up to 30 T. This work reveals a rich and highly anisotropic phase diagram, where applying B along the a-, b-, and c-axis leads to vastly different behavior. A fully spin-polarized state via a first order metamagnetic transition is obtained for B||a, and colossal magnetoresistance is seen for B||b, and quantum oscillations in the resistivity are observed for B||c, respectively. The interplay of the lattice, orbital and spin degrees of freedom are believed to give rise to this strongly anisotropic behavior. | | Source: | arXiv, cond-mat/0407630 | | Services: | Forum | Review | PDF | Favorites | |
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