Special Issue on Simulations of Complex Behavior from Simple Models; Guest Editors: D. P. Landau and Y. OkabeNo Access

FRUSTRATED METALS ON A TRIANGULAR LATTICE

NOBUO FURUKAWA

Department of Physics, Aoyama Gakuin University, Sagamihara, 229-8558, Japan

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SHIN MIYAHARA

Department of Physics, Aoyama Gakuin University, Sagamihara, 229-8558, Japan

Present address: ERATO-Multiferroics, JST, Tokyo 113-8656, Japan.

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, and

C. HOTTA

Department of Physics, Aoyama Gakuin University, Sagamihara, 229-8558, Japan

Present address: Department of Physics, Kyoto Sangyo University, Kyoto 603-8555, Japan.

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https://doi.org/10.1142/S0129183109014539Cited by:0 (Source: Crossref)

Abstract

Frustrated metals are investigated by numerical methods. In the absence of fermionic dynamics, the models are equivalent to a frustrated Ising model on a geometrically frustrated lattice, where macroscopic degeneracies are observed in the ground states. By taking into account fermionic hoppings, the models show partial loss of degeneracy, but still remains to be frustrated. Various properties of the system, including charge correlations, are also examined.

Keywords:

PACS: 72.80.Le, 72.80.Ng, 75.40.-s, 75.50.Mm

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FRUSTRATED METALS ON A TRIANGULAR LATTICE

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