SPECIFIC-HEAT OF ERNI5 AND DYNI5

被引：8

作者：

RADWANSKI, RJ ^{[1
]}

KIMNGAN, NH ^{[1
]}

KAYZEL, FE ^{[1
]}

FRANSE, JJM ^{[1
]}

机构：

[1] UNIV AMSTERDAM,VAN DER WAALS ZEEMAN LAB,1018 XE AMSTERDAM,NETHERLANDS

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 1993年 / 7卷 / 1-3期

关键词：

D O I：

10.1142/S0217979293000809

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The specific heat of DyNi5 measured on a single-crystalline specimen in the temperature interval from 1.5 K to 250 K has been analyzed in terms of two electronic subsystems. The conduction-electron subsystem is characterized by a value of the Sommerfeld coefficient gamma of 36 ml/K2 mol. The contribution of the rare-earth subsystem to the specific heat shows a lambda-type of peak at T(c) and above T(c) a Schottky-type of peak. The rare-earth contribution is well described within a single-ion Hamiltonian that includes the CEF and exchange interactions of the R3+ ions. The CEF interactions in ErNi5 and DyNi5 have been compared and a very similar charge multipolar distribution around the R3+ ions is found. The energy level scheme of these Kramers ions with J = 15/2 is derived.

引用

页码：379 / 382

页数：4

共 6 条

[1] TORQUE MEASUREMENTS IN THE BASAL-PLANE OF A DYNI5 CRYSTAL [J].

AUBERT, G ;

GIGNOUX, D ;

MICHELUTTI, B ;

NAITSAADA, A .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1980, 15-8 (JAN-) :551-552

[2] BULK MAGNETIZATION STUDY OF A DYNI5 SINGLE-CRYSTAL [J].

AUBERT, G ;

GIGNOUX, D ;

HENNION, B ;

MICHELUTTI, B ;

SAADA, AN .

SOLID STATE COMMUNICATIONS, 1981, 37 (09) :741-743

[3] CRYSTAL ELECTRIC-FIELD SPLITTING IN TBNI5 AND ERNI5 STUDIED BY INELASTIC NEUTRON-SCATTERING [J].

GOREMYCHKIN, EA ;

MUHLE, E ;

IVANITSKII, PG ;

KROTENKO, VT ;

PASECHNIK, MV ;

SLISENKO, VV ;

VASILKEVICH, AA ;

LIPPOLD, B ;

CHISTYAKOV, OD ;

SAVITSKII, EM .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1984, 121 (02) :623-631

[4] CRYSTAL-FIELD INTERACTIONS STUDIED BY HIGH-FIELD MAGNETIZATION [J].

RADWANSKI, RJ ;

FRANSE, JJM .

PHYSICA B, 1992, 177 (1-4) :193-198

[5] GROUND-STATE OF ER-3+ IONS IN ERNI5 AS STUDIED BY HIGH-FIELD MAGNETIZATION [J].

RADWANSKI, RJ ;

FRANSE, JJM ;

GIGNOUX, D ;

KAYZEL, FE ;

MARQUINA, C ;

SZEWCZYK, A .

PHYSICA B, 1992, 177 (1-4) :291-294

[6]

RADWANSKI RJ, IN PRESS J PHYS COND

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