LOW-TEMPERATURE SPECIFIC-HEAT OF NEARLY AND WEAKLY FERROMAGNETIC Y(CO1-XALX)2

被引：14

作者：

WADA, H

HADA, M

ISHIHARA, KN

SHIGA, M

NAKAMURA, Y

机构：

[1] Department of Metal Science and Technology, Kyoto University, Kyoto 606, Sakyo-ku

[2] Department of Mechanical and System Engineering, Faculty of Science and Technology, Ryukoku University

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1990年 / 59卷 / 08期

关键词：

Laves phase; low temperature specific heat; nearly ferromagnetic metals; spin fluctuations; weak ferromagnetism; Y(Co1-xAlx)2;

D O I：

10.1143/JPSJ.59.2956

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The low temperature specific heat of nearly and weakly ferromagnetic Y(Co1-xAlx)2 with 0≤x≤0.18 is studied between 1.4 K and 6.5 K. The results show an enhancement of the electronic specific heat coefficient, γ, around the critical concentration for ferromagnetism. A strong upturn in the C/T vs T2 curve at low temperatures is observed for x≥0.09. The origin of this upturn is discussed in terms of different models so far proposed. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

引用

页码：2956 / 2962

页数：7

共 22 条

[1] ELECTRONIC-STRUCTURE OF THE ORDERED TERNARY COMPOUND Y(CO0.75AL0.25)2 AND Y(FE0.75AL0.25)2 WITH C15-TYPE LAVES PHASE-STRUCTURE [J].

AOKI, M ;

YAMADA, H .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1989, 78 (03) :377-383

[2] MAGNETISM AND CRYSTAL-STRUCTURE OF LAVES PHASE-COMPOUNDS [J].

ASANO, S ;

ISHIDA, S .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1988, 18 (03) :501-515

[3] EFFECT OF FERROMAGNETIC SPIN CORRELATIONS ON SUPERCONDUCTIVITY [J].

BERK, NF ;

SCHRIEFFER, JR .

PHYSICAL REVIEW LETTERS, 1966, 17 (08) :433-+

[4]

BLOCH D, 1972, CR ACAD SCI B PHYS, V275, P601

[5] SPIN FLUCTUATIONS AND SUPERCONDUCTIVITY IN UPT3 [J].

DEVISSER, A ;

FRANSE, JJM ;

MENOVSKY, A ;

PALSTRA, TTM .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1984, 14 (09) :L191-L196

[6] LOW-TEMPERATURE PROPERTIES OF NEARLY FERROMAGNETIC FERMI LIQUIDS [J].

DONIACH, S ;

ENGELSBERG, S .

PHYSICAL REVIEW LETTERS, 1966, 17 (14) :750-+

[7] LOW-TEMPERATURE SPECIFIC-HEAT OF NI3AL AND NI3GA [J].

DOOD, WD ;

CHATEL, PFD .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1973, 3 (05) :1039-1053

[8]

GOPAL ESR, 1966, SPECIFIC HEATS LOW T, P12

[9] LOW-TEMPERATURE SPECIFIC HEAT OF NI-BASE FCC SOLID SOLUTIONS WITH CU ZN AL SI + SB [J].

GUPTA, KP ;

BECK, PA ;

CHENG, CH .

PHYSICAL REVIEW, 1964, 133 (1A) :A203-A206

[10]

HAHN A, 1968, HELV PHYS ACTA, V41, P857

← 1 2 3 →