arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.13033cond-mat.str-el
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莫特点周围异常厚的金属-绝缘体畴壁

Unusually thick metal-insulator domain walls around the Mott point

M. Y. Suárez-Villagrán, N. Mitsakos, Tsung-Han Lee, J. H. Miller,, E. Miranda, V. Dobrosavljević

摘要:

许多莫特系统在有限温度下具有一阶金属-绝缘体转变,相关的相共存区域显示不均匀性和局部相分离。在这里,人们通常会发现“气泡”或各相的域,它们被令人惊讶的厚或厚的域壁分开,如成像实验和最近的理论建模所揭示的。为了深入了解这种意想不到的行为,我们进行了系统的模型研究的结构,这样的金属-绝缘体畴壁周围的莫特点,在动态平均场论框架。我们的研究表明,产生这种“脂肪”畴壁的机制可以追溯到强磁阻挫,这预计是一个强大的功能,“自旋液体”莫特系统。

英文摘要:

Many Mott systems feature a first-order metal-insulator transition at finite temperatures, with an associated phase coexistence region displaying inhomogeneities and local phase separation. Here one typically finds "bubbles" or domains of the respective phases, which are separated by surprisingly thick, or fat, domain walls, as revealed both by imaging experiments and recent theoretical modeling. To gain insight into this unexpected behavior, we perform a systematic model study of the structure of such metal-insulator domain walls around the Mott point, within the dynamical mean-field theory framework. Our study reveals that a mechanism producing such "fat" domain walls can be traced to strong magnetic frustration, which is expected to be a robust feature of "spin-liquid" Mott systems.

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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