Gradual evolution in spin dynamics of TlCu1?xMgxCl3 probed by muon-spin-relaxation (μSR) technique

1st Conference on Light and Particle Beams in Materials Science 2013

物理学;材料科学

Suzuki, Takao^1 ; Watanabe, Isao^2 ; Yamada, Fumiko^3 ; Ishii, Yasuyuki^4 ; Ohishi, Kazuki^5 ; Goto, Takayuki^6 ; Tanaka, Hidekazu^3

College of Engineering, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan^1

Advanced Meson Science Laboratory, Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan^2

Department of Physics, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8551, Japan^3

Department of Physics, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan^4

Research Center for Neutron Science and Technology, Comprehensive Research Organization for Science and Society (CROSS), Ibaraki 319-1106, Tokyo, Japan^5

Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan^6

关键词: Gradual changes;    Longitudinal fields;    Mg-doping;    Muon spin relaxation;    Non-magnetic impurities;    Spin gap systems;    Two-component;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/502/1/012041/pdf
DOI  :  10.1088/1742-6596/502/1/012041

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Longitudinal-field muon-spin-relaxation (LF-μSR) measurements in TlCu1-xMgxCl3 were carried out to investigate the spin dynamics in the non-magnetic impurity doped spin gap system. As reported before, in the case of x ≥ 0.006, LF-μSR time spectra are well fitted by the two components function, which means the phase separation to a spin frozen region and to a spin flucuating region. In this report, we focus on the spin fluctuating region, and discuss the gradual change in its magnetic properties with increasing the Mg-doping.