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arXiv 2006.03396cond-mat.str-el
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h-YMnO $_3$中的经典自旋液体或扩展临界范围?

Classical spin liquid or extended critical range in h-YMnO$_3$?

Sofie Janas, Jakob Lass, Ana-Elena Tutueanu, Morten L. Haubro, Christof Niedermayer, Uwe Stuhr, Guangyong Xu, Dharmalingam Prabhakaran, Pascale P. Deen, Sonja H… 展开作者

Sofie Janas, Jakob Lass, Ana-Elena Tutueanu, Morten L. Haubro, Christof Niedermayer, Uwe Stuhr, Guangyong Xu, Dharmalingam Prabhakaran, Pascale P. Deen, Sonja Holm-Dahlin, Kim Lefmann

摘要:

非弹性中子实验的经典三角晶格几何阻挫的反铁磁体h-YMnO $_3$显示扩散,无隙磁激发目前低于和远高于有序温度,$T_N$。激发的相关长度随着温度接近零而增加,与临界散射非常相似。我们的散射模型的临界自旋-自旋相关性在一个二维的磁性基态,我们推测,这可能会提供一个一般的框架来理解典型的功能归因于经典的自旋液体。

英文摘要:

Inelastic neutron experiments on the classical triangular-lattice geometrically frustrated antiferromagnet h-YMnO$_3$ reveal diffuse, gapless magnetic excitations present both below and far above the ordering temperature, $T_N$. The correlation length of the excitations increases as the temperature approaches zero, bearing strong resemblance to critical scattering. We model the scattering as critical spin-spin correlations in a two-dimensional magnetic ground state, and we speculate that this may provide a general framework to understand features typically attributed to classical spin liquids.

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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