Experimental Evidence for Ising Spin-Glass Transition in the YbCoGaO 4 Single Crystal
作者： R Szymczak , H A Dabkowska , A Dabkowski , G M Luke , P Aleshkevych
DOI: 10.1088/1742-6596/303/1/012064
关键词: Materials science 、 Paramagnetism 、 Condensed matter physics 、 Single crystal 、 Spin glass 、 Magnetization 、 Ising model 、 Glass transition 、 Anisotropy 、 Critical exponent
摘要: Magnetic measurements (ac and dc susceptibilities magnetization) on YbCoGaO4 single crystal as a function of frequency temperature are presented. The studied system behaves like three-dimensional Ising-like spin glass. A cusp is seen only in the longitudinal susceptibility, whereas paramagnetic behavior observed transverse susceptibility. Typical glass features dependence ac Dynamical scaling performed critical exponents deduced compared to those obtained for Ising Heisenberg systems. origin anisotropy Yb3+ Co2+ions briefly discussed.
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