期刊
PHYSICAL REVIEW LETTERS
卷 96, 期 19, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.96.190405
关键词
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We show that the newly discovered Cr-52 Bose condensate in zero magnetic field can be a spin nematic of the following kind: a maximum polar state, a colinear polar state, or a biaxial nematic ferromagnetic state. We also present the phase diagram with a magnetic field in the interaction subspace containing the chromium condensate. It contains many uniaxial and biaxial spin nematic phases, which often but not always break time reversal symmetry, and can exist with or without spontaneous magnetization.
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