Effects of pressure and magnetic field on transport properties of Y1-xRxCo2 alloys (R=Gd, Tb, Dy, Ho and Er)

被引：2
|
作者：
Takaesu, Y. [1 ,2 ]
Nakama, T. [1 ]
Kinjyo, A. [1 ]
Yonamine, S. [1 ]
Hedo, M. [1 ]
Yagasaki, K. [1 ]
Uchima, K. [2 ]
Uwatoko, Y. [3 ]
Burkov, A. T. [4 ]
机构：
[1] Univ Ryukyus, Fac Sci, Okinawa 9030213, Japan
[2] Okinawa Christian Jr Coll, Gen Educ, Nishihara, Okinawa 9030207, Japan
[3] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan
[4] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia
来源：
INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, JOINT AIRAPT-22 AND HPCJ-50 | 2010年 / 215卷
基金：
俄罗斯基础研究基金会;
关键词：
RARE-EARTH;
D O I：
10.1088/1742-6596/215/1/012039
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Electrical resistivity rho and thermopower S of Y1-xRxCo2 (R=Gd, Tb, Dy, Ho and Er) Laves phase alloy systems were measured at temperatures from 1.5 K to 300 K in magnetic fields up to 15 T and under hydrostatic pressure up to 2 GPa. We show that there is a universal linear relation between the pressure and magnetic field derivatives of the resistivity, d rho/dP and d rho/dB, with gradient, determined by pressure derivative of the critical metamagnetic field of the cobalt 3d electron system. A similar scaling behavior was found for the thermopower dependencies on pressure and alloy composition.
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页数：4
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