低维量子磁体中的热传导
Heat conduction in low-dimensional quantum magnets
摘要：
输运性质提供了关于固体中激发散射的流动性、弹性和非弹性的重要信息。声子和电子的热输运是很好理解的，但对磁激发的热输运知之甚少。最近，在低维量子磁体中发现了大而不寻常的磁热导率。本文总结了几种化合物的磁热导率$κ_\mathrm{mag}$的实验结果，这些结果很好地代表了不同的低维量子自旋模型，即S=1/2自旋排列的二维正方形晶格和一维结构如链状和双梯状结构。$κ_\mathrm{mag}$的显着性能已被发现：它往往相形见绌通常的声子热导率，并允许识别和分析相关的磁激发的不同散射机制。
英文摘要：
Transport properties provide important information about the mobility, elastic and inelastic of scattering of excitations in solids. Heat transport is well understood for phonons and electrons, but little is known about heat transport by magnetic excitations. Very recently, large and unusual magnetic heat conductivities were discovered in low-dimensional quantum magnets. This article summarizes experimental results for the magnetic thermal conductivity $κ_\mathrm{mag}$ of several compounds which are good representations of different low-dimensional quantum spin models, i.e. arrangements of S=1/2 spins in the form of two-dimensional (2D) square lattices and one-dimensional (1D) structures such as chains and two-leg ladders. Remarkable properties of $κ_\mathrm{mag}$ have been discovered: It often dwarfs the usual phonon thermal conductivity and allows the identification and analysis of different scattering mechanisms of the relevant magnetic excitations.
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。
