ENERGY-GAP SUPPRESSION BY ALLOYING IN CENI1-XPTXSN

被引：32

作者：

NISHIGORI, S

GOSHIMA, H

SUZUKI, T

FUJITA, T

NAKAMOTO, G

TAKABATAKE, T

FUJII, H

SAKURAI, J

机构：

[1] HIROSHIMA UNIV, FAC INTEGRATED ARTS & SCI, HIROSHIMA 730, JAPAN

[2] TOYAMA UNIV, FAC SCI, GOFU KU, TOYAMA 930, JAPAN

来源：

PHYSICA B-CONDENSED MATTER | 1993年 / 186-88卷

关键词：

D O I：

10.1016/0921-4526(93)90587-V

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The specific heat C of CeNi1-xPtxSn has been measured at temperatures T between 1.3 and 60 K. With increasing Pt concentration x from 0 to 0.2, the ratio C/T at 1.5K recovers from a reduced value of 0.10J/K2 mol due to the gapping (x = 0) to an enhanced value of 0.34 J/K2 Mol (x = 0.2). This gap suppression is discussed in terms of reduction of the c-f hybridization and destruction of coherence.

引用

收藏

页码：406 / 408

页数：3

相关论文

共 11 条

[1] SPECIFIC-HEAT OF THE KONDO MODEL [J].

DESGRANGES, HU ;

SCHOTTE, KD .

PHYSICS LETTERS A, 1982, 91 (05) :240-242

[2] HYBRIDIZATION GAP IN CE3BI4PT3 [J].

HUNDLEY, MF ;

CANFIELD, PC ;

THOMPSON, JD ;

FISK, Z ;

LAWRENCE, JM .

PHYSICAL REVIEW B, 1990, 42 (10) :6842-6845

[3]

Kasuya T., 1977, VALENCE INSTABILITIE, P137

[4] GAP SUPPRESSION IN CENISN UNDER HYDROSTATIC-PRESSURE [J].

KURISU, M ;

TAKABATAKE, T ;

FUJIWARA, H .

SOLID STATE COMMUNICATIONS, 1988, 68 (07) :595-597

[5] NMR INVESTIGATION OF ENERGY-GAP FORMATION IN THE VALENCE FLUCTUATING COMPOUND CENISN [J].

KYOGAKU, M ;

KITAOKA, Y ;

NAKAMURA, H ;

ASAYAMA, K ;

TAKABATAKE, T ;

TESHIMA, F ;

FUJII, H .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1990, 59 (05) :1728-1732

[6] COHERENCE EFFECTS IN THE KONDO LATTICE [J].

LACROIX, C .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1986, 60 (2-3) :145-152

[7] EVIDENCE OF PSEUDOGAP FORMATION IN A NEW VALENCE-FLUCTUATING COMPOUND - CERHSB [J].

MALIK, SK ;

ADROJA, DT .

PHYSICAL REVIEW B, 1991, 43 (07) :6277-6279

[8] MAGNETIC, TRANSPORT AND SPECIFIC-HEAT MEASUREMENTS ON CETX (T = PD AND PT, X = GA, GE AND SN) [J].

SAKURAI, J ;

YAMAGUCHI, Y ;

NISHIGORI, S ;

SUZUKI, T ;

FUJITA, T .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1990, 90-1 :422-424

[9]

SKOLOZDRA RV, 1984, IAN SSSR NEORG MATER, V20, P604

[10] FORMATION OF AN ANISOTROPIC ENERGY-GAP IN THE VALENCE-FLUCTUATING SYSTEM CENISN [J].

TAKABATAKE, T ;

TESHIMA, F ;

FUJII, H ;

NISHIGORI, S ;

SUZUKI, T ;

FUJITA, T ;

YAMAGUCHI, Y ;

SAKURAI, J ;

JACCARD, D .

PHYSICAL REVIEW B, 1990, 41 (13) :9607-9610