期刊
PHYSICAL REVIEW B
卷 62, 期 10, 页码 R6108-R6111出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.62.R6108
关键词
-
We report measurements of the specific heat and the thermal conductivity of the model Heisenberg spin-1/2 chain cuprate Sr2CuO3 at low temperatures. In addition to a nearly isotropic phonon heat transport, we find a quasi-one-dimensional excess thermal conductivity along the chain direction, most likely associated with spin excitations (spinons). The spinon energy current is limited mainly by scattering on defects and phonons. Analyzing the specific heat data, the intrachain magnetic exchange J/k(B) is estimated to be similar or equal to 2650 K.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据