期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 80, 期 8, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.80.083703
关键词
quantum critical end point; UGe2; metamagnetism; Hall effect
资金
- French ANR
- ERC
- Grants-in-Aid for Scientific Research [22740231] Funding Source: KAKEN
We report on Hall resistivity and electrical resistivity measurements under pressure and magnetic field in UGe2 with ferromagnetic (FM) tricriticality. The Hall resistivity sensitively detects the first order metamagnetic transition from a paramagnetic (PM) phase to a FM phase in a large pressure range almost up to the quantum critical end point (QCEP). The drastic change in the Fermi surface at the PM-FM transition is detected up to the vicinity of the QCEP, while a strong modification in the field variation of the inelastic scattering between electrons is observed toward the QCEP. The comparison with the theoretical predictions is made.
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