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.

引用

页数：4

共 27 条

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