UNUSUAL GROUND-STATE PROPERTIES OF UPD2AL3 - IMPLICATIONS FOR THE COEXISTENCE OF HEAVY-FERMION SUPERCONDUCTIVITY AND LOCAL-MOMENT ANTIFERROMAGNETISM

被引：137

作者：

CASPARY, R ^{[1
]}

HELLMANN, P ^{[1
]}

KELLER, M ^{[1
]}

SPARN, G ^{[1
]}

WASSILEW, C ^{[1
]}

KOHLER, R ^{[1
]}

GEIBEL, C ^{[1
]}

SCHANK, C ^{[1
]}

STEGLICH, F ^{[1
]}

PHILLIPS, NE ^{[1
]}

机构：

[1] LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.71.2146

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report measurements of the resistivity and the specific heat, performed as a function of temperature, magnetic field, and hydrostatic pressure on the antiferromagnetic (T(N)=14 K) heavy-fermion superconductor (T(c)=2 K) UPd2Al3. Our results suggest a coexistence of two subsystems with more localized 5f states responsible for the magnetic properties and less localized states responsible for the superconducting properties. The latter are compatible with an order parameter of octagonal d-wave symmetry.

引用

页码：2146 / 2149

页数：4

共 36 条

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