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Quantum phase transition in a random tiling model (CROSBI ID 86236)

Prilog u časopisu | izvorni znanstveni rad

Sunko, Denis K. Quantum phase transition in a random tiling model // Fizika A, 8 (1999), 4; 311-318-x

Podaci o odgovornosti

Sunko, Denis K.

engleski

Quantum phase transition in a random tiling model

The analogue of a Mott-Hubbard transition is discussed, which appears at an incommensurate filling in a model of a two-dimensional plane, randomly tiled with CuO_4 `molecules', simulating the copper-oxide planes of high-T_c superconductors. It is shown to be a quantum phase transition, which can be crossed either in doping, at a fixed hopping overlap t, or in t, when the doping is fixed in a certain range below half-filling. It is first-order, closely analogous to a liquid-gas transition.

Mott-Hubbard transition; high-Tc superconductivity

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Podaci o izdanju

8 (4)

1999.

311-318-x

objavljeno

1330-0008

Povezanost rada

Fizika