期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 91, 期 9, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.7566/JPSJ.91.094710
关键词
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资金
- JST CREST [JPMJCR19T5]
- JSPS of Japan [JP20H05163, JP22H04480]
- JSPS KAKENHI [JP20K03860, JP20H01857, JP21H01039, JP22H01221, JP22K14005, JP19J20144]
- Japan Society for the Promotion of Science (JSPS) Fellowship
- Multidisciplinary Research Laboratory System for Future Developments, Osaka University
This study investigates the intrinsic anomalous thermal Hall effect as a probe of the order parameters of non-unitary pairing states in UTe2, a potential spin-triplet superconductor. By considering all symmetry-allowed non-unitary states under magnetic fields and calculating the anomalous Hall conductivity, the study explores three types of Fermi surfaces predicted by previous band calculations. The results reveal a non-zero anomalous thermal Hall conductivity in certain ratios of two irreducible representations, which can be utilized for future exploration of pairing states in UTe2.
We investigate the intrinsic anomalous thermal Hall effect as an effective probe of the order parameters of non-unitary pairing states of the putative spin-triplet superconductor UTe2. We consider all symmetry-allowed non-unitary states under magnetic fields comprehensively, and calculate the anomalous Hall conductivity arising from time-reversal symmetry-breaking Weyl point nodes of the gap functions, assuming three types of Fermi surfaces; ellipsoid-shaped, cylinder-shaped, and ring-shaped ones, which are predicted by previous band calculations. We find the nonzero anomalous thermal Hall conductivity in the certain ratio of the two irreducible representations. The results may be utilized for future exploration of pairing states of UTe2.
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