arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1509.01022cond-mat.str-el
收藏

自旋1/2海森堡强梯中的电子自旋共振

Electron Spin Resonance in a Spin-1/2 Heisenberg Strong-rung Ladder

A. N. Ponomaryov, M. Ozerov, L. Zviagina, J. Wosnitza, K. Yu. Povarov, F. Xiao, A. Zheludev, C. Landee, E. Čižmár, A. A. Zvyagin, S. A. Zvyagin

摘要:

用电子自旋共振(ESR)谱研究了强自旋1/2海森堡阶梯化合物Cu(C $_8$ H $_6$ N $_2$)Cl $_2$在$H_{c1}$上方的场诱导无带隙相.在量子场论的框架下分析了ESR线宽的温度依赖性,表明磁相互作用的各向异性起着至关重要的作用,决定了特殊的低温ESR线宽行为。特别是,有人认为,统一的Dzyaloshinskii-Moriya相互作用(这是允许在沿梯形腿的债券)可以在Cu(C $_8$ H $_6$ N $_2$)Cl $_2$的这种行为的来源。

英文摘要:

Cu(C$_8$H$_6$N$_2$)Cl$_2$, a strong-rung spin-1/2 Heisenberg ladder compound, is probed by means of electron spin resonance (ESR) spectroscopy in the field-induced gapless phase above $H_{c1}$. The temperature dependence of the ESR linewidth is analyzed in the quantum field theory framework, suggesting that the anisotropy of magnetic interactions plays a crucial role, determining the peculiar low-temperature ESR linewidth behavior. In particular, it is argued that the uniform Dzyaloshinskii-Moriya interaction (which is allowed on the bonds along the ladder legs) can be the source of this behavior in Cu(C$_8$H$_6$N$_2$)Cl$_2$.

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。

↑