EFFECT OF MAGNETIC INTERPHASE BOUNDARIES ON THE ELECTRICAL-RESISTIVITY IN METALLIC METAMAGNETS

被引：30

作者：

BARANOV, NV ^{[1
]}

MARKIN, PE ^{[1
]}

KOZLOV, AI ^{[1
]}

SINITSYN, EV ^{[1
]}

机构：

[1] URAL POLYTECH INST,SVERDLOVSK 620002,RUSSIA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 200卷

关键词：

D O I：

10.1016/0925-8388(93)90469-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The magnetoresistance of single crystals of ErGa2, Tb3Co and NdCu2 compounds has been studied in the regions of the field-induced spin-flip transitions. An anomalous increase was found in the electrical resistivity in the intermediate state where the magnetic phases with the different magnetic structures coexist. A theoretical model to explain this anomaly is proposed. The peaks of the electrical resistivity in this model are connected with the s electron reflection from the potential barrier at the interphase boundary separating the phases with different magnetic structures. This effect is the magnetic analogy of so-called Andreev's reflection in superconductors.

引用

页码：43 / 50

页数：8

共 29 条

[1]

Andreev A, 1964, ZH EKSP TEOR FIZ, V46, P1823

[2] MAGNETIC-PROPERTIES AND MAGNETIC-STRUCTURE OF TBGA2 [J].

ASMAT, H ;

GIGNOUX, D ;

LEMAIRE, R .

PHYSICA B & C, 1977, 86 (JAN-M) :185-186

[3]

Baranov N. V., 1986, PHYS MET METALLOGR, V61, P97

[4]

BARANOV NV, 1984, FIZ NIZK TEMP, V10, P781

[5]

BARANOV NV, 1983, PHYS MET METALLOGR, V56, P44

[6]

BARYAKHTAR VG, 1968, FIZ NIZK TEMPER, V12, P43

[7]

BARYAKHTAR VG, 1969, JETP LETT, V9, P634

[8] CRYSTAL-CHEMISTRY OF CECU2-TYPE STRUCTURE [J].

DEBRAY, D .

JOURNAL OF THE LESS-COMMON METALS, 1973, 30 (02) :237-248

[9]

DILON JF, 1975, SOLID STATE COMMUN, V16, P371

[10] METAMAGNETISM IN ERGA2 STUDIED ON A SINGLE-CRYSTAL [J].

DOUKOURE, M ;

GIGNOUX, D .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1982, 30 (01) :111-116

← 1 2 3 →