Dimensional Reduction in Quantum Dipolar Antiferromagnets
Dimensional Reduction in Quantum Dipolar Antiferromagnets
复制标题
量子偶极反铁磁体的降维
DOI：
10.1103/physrevlett.116.197202
复制
发表时间：
2016
影响因子：
8.6
通讯作者：
and H.M. Ronnow
中科院分区：
文献类型：
--
作者：
P. Babkevich;M. Jeong;Y. Matsumoto;I. Kovacevic;A. Finco;R. Toft-Petersen;C. Ritter;M. Mansson;S. Nakatsuji;and H.M. Ronnow
We report ac susceptibility, specific heat, and neutron scattering measurements on a dipolar-coupled antiferromagnet. For the thermal transition, the order-parameter critical exponent is found to be 0.20(1) and the specific-heat critical exponent. The exponents agree with the 2Duniversality class despite the lack of apparent two-dimensionality in the structure. The order-parameter exponent for the quantum phase transitions is found to be 0.35(1) corresponding to. These results are in line with those found forwhich has the same crystal structure, but largely different, crystal field environment and hyperfine interactions. Our results therefore experimentally establish that the dimensional reduction is universal to quantum dipolar antiferromagnets on a distorted diamond lattice.
