Properties on request in semi-Heusler phases

被引：152

作者：

Pierre, J

Skolozdra, R

Tobola, J

Kaprzyk, S

Hordequin, C

Kouacou, MA

Karla, I

Currat, R

Lelievre-Berna, E

机构：

[1] Lab L Neel, CNRS, F-38042 Grenoble, France

[2] I Franko Univ, Dept Inorgan Chem, UA-290005 Lviv, Ukraine

[3] Acad Min & Met, Fac Phys & Nucl Tech, PL-30073 Krakow, Poland

[4] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1997年 / 262卷

关键词：

semiconductor-metal cross-over; itinerant magnetism; half metallic ferromagnet; electronic structure;

D O I：

10.1016/S0925-8388(97)00337-X

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：

Various transport and magnetic properties of semi-Heusler phases are described, which arise from the particular crystallographic structure and narrow band phenomena. Semiconducting-to-metal cross overs are observed by varying the electron concentration. The onset of weak itinerant ferromagnetism often arises in the metallic state. Even in NiMnSb, where the strong ferromagnetism results in a half metallic state below 80 K, the magnetism evolves from Heisenberg-like to itinerant by increasing the temperature. Giant magnetoresistance effects are observed in the semiconducting rare earth compounds NiRSb. (C) 1997 Elsevier Science S.A.

引用

页码：101 / 107

页数：7

共 20 条

[1] NARROW-BAND IN THE INTERMETALLIC COMPOUNDS TINISN, ZRNISN, HFNISN [J].