Phase diagram of NaxCoO2 studied by Gutzwiller density-functional theory.
نویسندگان
چکیده
The ground state of NaxCoO2 (0.00.6 due to a_{1g} van Hove singularity near the band top, (2) correlated nonmagnetic metal without e_{g};{'} pockets for 0.3<x<0.6, and (3) e_{g};{'} pockets appear for x<0.3, and additional magnetic instability is revealed. Experimental quasiparticle properties are well explained, and the a_{1g}-e_{g};{'} anticrossing is attributed to spin-orbital coupling.
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ورودعنوان ژورنال:
- Physical review letters
دوره 101 6 شماره
صفحات -
تاریخ انتشار 2008