High-pressure resistivity and thermoelectric power in Yb14MnSb11

被引：13

作者：

Akrap, A. ^{[1
]}

Barisic, N.

Forro, L.

Mandrus, D.

Sales, B. C.

机构：

[1] Ecole Polytech Fed Lausanne, Inst Phys Mat Complexe, CH-1015 Lausanne, Switzerland

[2] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.76.085203

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the electrical transport properties of Yb14MnSb11, resistivity and thermoelectric power under pressures up to 2.3 GPa. In both transport coefficients we can follow the ferromagnetic transition, which shows a shift from the ambient pressure value of 52 K to lower temperatures and eventually saturation at 49 K for p>2.0 GPa. The high values of thermopower and its linear temperature dependence down to 100 K demonstrate that the system is a bad metal. Anomalies in the thermopower below the ferromagnetic transition are rather sensitive to pressure. Our experimental observations are consistent with the model of an underscreened Kondo lattice.

引用

页数：4

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