フルヤ　シュンスケ   FURUYA Shunsuke   古谷　峻介    所属   埼玉医科大学  医学部 教養教育    職種   専任講師
論文種別	学術雑誌(原著)
言語種別	英語
査読の有無	査読あり
表題	Electron Spin Resonance in Quasi-One-Dimensional Quantum Antiferromagnets: Relevance of Weak Interchain Interactions
掲載誌名	正式名：JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN ISSNコード：0031-9015
出版社	PHYSICAL SOC JAPAN
巻・号・頁	84(3)
著者・共著者	Shunsuke C. Furuya,Masahiro Sato
発行年月	2015/03
概要	We discuss universal features on the electron spin resonance (ESR) of a temperature-induced Tomonaga-Luttinger liquid phase in a wide class of weakly coupled S = 1/2 antiferromagnetic spin chains such as spin ladders, spin tubes and three-dimensionally coupled spin chains. We show that the ESR linewidth of various coupled chains increases with lowering temperature while the linewidth of a single spin chain is typically proportional to temperature. This broadening with lowering temperature is attributed to anisotropic interchain interactions and has been indeed observed in several kinds of three-dimensional (3D) magnets of weakly coupled spin chains above the 3D ordering temperature. We demonstrate that our theory can account for anomalous behaviors of the linewidths in an S = 1/2 four-leg spin tube compound Cu2Cl4 center dot H8C4SO2 (abbreviated to Sul-Cu2Cl4) and a three-dimensionally coupled S = 1/2 spin chain compound CuCl2 center dot 2NC(5)H(5).
DOI	10.7566/JPSJ.84.033704
arXiv ID	arXiv:1308.2714
PermalinkURL	http://arxiv.org/abs/1308.2714v2