arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0909.4283cond-mat.str-elcond-mat.stat-mech
收藏

空间各向异性三角形反铁磁体在磁场中的准粒子

Quasiparticles of spatially anisotropic triangular antiferromagnets in a magnetic field

Masanori Kohno

摘要:

利用弱链间耦合方法结合链的精确解,研究了各向异性三角晶格上自旋为1/2的海森堡反铁磁体在磁场中的光谱性质.磁场中链间相互作用诱导的主导模式表现为准粒子,表现出异常不相称有序和高能模式等独特特征。据此,统一地定量解释了各向异性三角形反铁磁体Cs_2CuCl_4在磁场中所观察到的各种异常现象。

英文摘要:

The spectral properties of the spin-1/2 Heisenberg antiferromagnet on an anisotropic triangular lattice in a magnetic field are investigated using a weak-interchain-coupling approach combined with exact solutions of a chain. Dominant modes induced by interchain interactions in a magnetic field behave as quasiparticles which show distinctive features such as anomalous incommensurate ordering and high-energy modes. In terms of them, various unusual features observed in the anisotropic triangular antiferromagnet Cs_2CuCl_4 in a magnetic field are quantitatively explained in a unified manner.

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。

↑