Zhenwei Yu, Hui Liang, Yiyan Wang, Na Li, Yan Sun, Dandan Wu, Ying Zhou, Zongling Ding, Jin Sun, Tianbo He, Ziyang Wu, Junfeng Wang, Xuefeng Sun, Qiuju Li
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引用次数: 0
Abstract
We report the synthesis, crystal structure, magnetization and specific heat studies of YCo3(OH)6.55Br2.45single crystal. YCo3(OH)6.55Br2.45crystallizes in trigonal structure, in which Co2+ions form a perfect kagomé lattice. The magnetic susceptibility reveals successive magnetic transitions at 6.5 and 7.8 K and the Curie-Weiss fitting demonstrates that YCo3(OH)6.55Br2.45has strong antiferromagnetic coupling and pronounced magnetic frustration effect. Specific heat data suggest that low-Tmagnetic transitions are attributed to antiferromagnetic ordering of Co2+ions and the magnetic entropy points to effective 1/2 spin in the system. These results indicate that an unusual magnetic ordering state with effective spin-1/2 is realized in kagomé lattice system YCo3(OH)6.55Br2.45.
期刊介绍:
Journal of Physics: Condensed Matter covers the whole of condensed matter physics including soft condensed matter and nanostructures. Papers may report experimental, theoretical and simulation studies. Note that papers must contain fundamental condensed matter science: papers reporting methods of materials preparation or properties of materials without novel condensed matter content will not be accepted.