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arXiv 0706.2201cond-mat.stat-mech
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复杂磁系统中的自旋波:非广延方法

Spin-waves in a complex magnetic system: nonextensive approach

D. O. Soares-Pinto, M. S. Reis, R. S. Sarthour, I. S. Oliveira

摘要:

在本文中,我们分析的自旋波激发(磁振子)的非均匀自旋系统的Boltzmann-Gibbs框架内,然后连接的结果与非广延的方法(在意义上的Tsallis统计)。考虑到这两个框架之间的等价性,我们可以将熵参数q与非均匀系统的交换积分分布的矩联系起来。这证实了熵参数与系统的微观性质有关的观点。

英文摘要:

In this paper we analyze the spin-wave excitations (magnons) of an inhomogeneous spin system within the Boltzmann-Gibbs framework and then connect the results with the nonextensive approach (in the sense of Tsallis statistics). Considering an equivalence between those two frameworks, we could connect the entropic parameter q with moments of the distribution of exchange integrals of the inhomogenous system. It ratifies the idea that the entropic parameter is connected to the microscopic properties of the system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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