Indications of incommensurate spin fluctuations in doped triangular antiferromagnets

Details Indications of incommensurate spin fluctuations in doped triangular antiferromagnets Indications of incommensurate spin fluctuations in doped triangular antiferromagnets

2002-03-29

arxiv.org/abs/cond-mat/0203604v2

Phys. Lett. A296, 301 (2002)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, seven figures are included

Scientific paper

10.1016/S0375-9601(02)00302-X

The incommensurate spin fluctuation of the doped triangular antiferromagnet is studied within the t-J model. It is shown that the commensurate peak near the half-filling is split into six incommensurate peaks in the underdoped and optimally doped regimes. The incommensurability increases with the hole concentration at lower dopings, and saturates at higher dopings. Although the incommensurability is almost energy independent, the weight of these incommensurate peaks decreases with energy and temperature.

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