Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
荒木 新吾*; 林田 みなみ*; 西海 尚人*; 眞鍋 博紀*; 池田 陽一*; 小林 達生*; 村田 惠三*; 稲田 佳彦*; Winiewski, P.*; 青木 大*; et al.
Journal of the Physical Society of Japan, 84(2), p.024705_1 - 024705_8, 2015/02
被引用回数:9 パーセンタイル:55.65(Physics, Multidisciplinary)Pressure-temperature-field phase diagram and quantum fluctuation effect are investigated in the itinerant ferromagnet UP. The zero-temperature ferromagnetic-to-paramagnetic transition is located at 4.0 GPa. The tricritical point exists at 3.8 GPa and 32 K, where the ferromagnetic transition changes from second- to first-order. A prominent quantum fluctuation effect was observed in resistivity behavior new the tricritical point.
荒木 新吾*; 林田 みなみ*; 西海 尚人*; 眞鍋 博紀*; 池田 陽一*; 小林 達生*; 村田 惠三*; 稲田 佳彦*; Winiewski, P.*; 青木 大*; et al.
JPS Conference Proceedings (Internet), 3, p.011081_1 - 011081_6, 2014/06
Hall effect measurements in ferromagnet UP were carried out under pressure up to 4.3 GPa. The Hall resistivity at paramagnetic state is dominated by the extraordinary Hall effect due to the skew scattering. The Curie temperature decreases with increasing pressure and disappears at Pc = 4.1 GPa. The clear first-order metamagnetic transition from the paramagnetic state to the strongly ferromagnetic state appears around Pc at low temperature.