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Spin Dynamics for the t-J Model | | Zhongbing Huang
; Shiping Feng
; | | Date: |
24 May 1998 | | Journal: | Phys. Lett. A242, 94 (1998) | | Subject: | cond-mat | | Abstract: | The spin dynamics at the finite temperature for the t-J model in the underdoped and optimal doped regimes is studied within the fermion-spin theory. It is shown that the dynamical spin structure factor spectrum at the antiferromagnetic wave vector $Q=(pi,pi)$ are separated as low- and high-frequency parts, respectively, but the high-frequency part is suppressed in the dynamical susceptibility spectrum $chi^{’’}(Q,omega)$, while the low-frequency part is the temperature dependent, which are in qualitative agreement with the experiments and numerical simulations. | | Source: | arXiv, cond-mat/9805308 | | Services: | Forum | Review | PDF | Favorites | |
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