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
收藏
页码:379 / 382
页数:4
相关论文
共 6 条
  • [1] TORQUE MEASUREMENTS IN THE BASAL-PLANE OF A DYNI5 CRYSTAL
    AUBERT, G
    GIGNOUX, D
    MICHELUTTI, B
    NAITSAADA, A
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1980, 15-8 (JAN-) : 551 - 552
  • [2] BULK MAGNETIZATION STUDY OF A DYNI5 SINGLE-CRYSTAL
    AUBERT, G
    GIGNOUX, D
    HENNION, B
    MICHELUTTI, B
    SAADA, AN
    [J]. SOLID STATE COMMUNICATIONS, 1981, 37 (09) : 741 - 743
  • [3] CRYSTAL ELECTRIC-FIELD SPLITTING IN TBNI5 AND ERNI5 STUDIED BY INELASTIC NEUTRON-SCATTERING
    GOREMYCHKIN, EA
    MUHLE, E
    IVANITSKII, PG
    KROTENKO, VT
    PASECHNIK, MV
    SLISENKO, VV
    VASILKEVICH, AA
    LIPPOLD, B
    CHISTYAKOV, OD
    SAVITSKII, EM
    [J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1984, 121 (02): : 623 - 631
  • [4] CRYSTAL-FIELD INTERACTIONS STUDIED BY HIGH-FIELD MAGNETIZATION
    RADWANSKI, RJ
    FRANSE, JJM
    [J]. PHYSICA B, 1992, 177 (1-4): : 193 - 198
  • [5] GROUND-STATE OF ER-3+ IONS IN ERNI5 AS STUDIED BY HIGH-FIELD MAGNETIZATION
    RADWANSKI, RJ
    FRANSE, JJM
    GIGNOUX, D
    KAYZEL, FE
    MARQUINA, C
    SZEWCZYK, A
    [J]. PHYSICA B, 1992, 177 (1-4): : 291 - 294
  • [6] RADWANSKI RJ, IN PRESS J PHYS COND