ANISOTROPIC SUPPRESSION OF THE ENERGY-GAP IN CENISN BY HIGH MAGNETIC-FIELDS

被引：74

作者：

TAKABATAKE, T

NAGASAWA, M

FUJII, H

KIDO, G

NOHARA, M

NISHIGORI, S

SUZUKI, T

FUJITA, T

HELFRICH, R

AHLHEIM, U

FRAAS, K

GEIBEL, C

STEGLICH, F

机构：

[1] TOHOKU UNIV,INST MAT RES,SENDAI,MIYAGI 980,JAPAN

[2] TH DARMSTADT,INST FESTKORPERPHYS,W-6100 DARMSTADT,GERMANY

[3] HIROSHIMA UNIV,FAC SCI,HIROSHIMA 730,JAPAN

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.45.5740

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The formation of the pseudogap in CeNiSn has been investigated by means of resistivity and specific-heat measurements in high magnetic fields. When the field is raised from 0 to 12 T along the orthorhombic a axis, the semiconductorlike behavior in the resistivity below 6 K disappears and the linear electronic term in the specific heat increases from 57 to 100 mJ/K2mol. However, no significant effect was observed for fields along the b and c axes up to 15 T. These results suggest an anisotropic suppression of the pseudogap, which can be interpreted as a result of strong spin polarization of the renormalized narrow band.

引用

页码：5740 / 5743

页数：4

共 17 条

[1] TRANSPORT AND MAGNETIC-PROPERTIES OF INTERMETALLIC SYSTEMS RNIM (R=U, CE, ER, HO, TM, YB, SC, TI, ZR, HF, M = SN, SB) [J].