Spin-fluctuation theory of FeSi

被引：41

作者：

Takahashi, Y

机构：

[1] Faculty of Science, Himeji Institute of Technology, Ako-gun, 678-12, 1479-1 Kanaji, Kamigori-cho

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1997年 / 9卷 / 12期

关键词：

D O I：

10.1088/0953-8984/9/12/008

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The temperature dependence of the magnetic susceptibility of FeSi is calculated over a wide temperature range on the basis of spin-fluctuation theory applied to a model of an exchange-enhanced semiconductor. We can reproduce the low-temperature activation-type behaviour of the susceptibility as well as the Curie-Weiss behaviour observed at high temperature. We also give an explanation for the behaviour of the observed wave-vector- and frequency-dependent neutron scattering intensities.

引用

收藏

页码：2593 / 2605

页数：13

相关论文

共 29 条

[1]

Aeppli G., 1992, Comments Condens. Matter Phys., V16, P155

[2] OPTICAL EVIDENCE OF ANDERSON-MOTT LOCALIZATION IN FESI [J].

DEGIORGI, L ;

HUNT, MB ;

OTT, HR ;

DRESSEL, M ;

FEENSTRA, BJ ;

GRUNER, G ;

FISK, Z ;

CANFIELD, PC .

EUROPHYSICS LETTERS, 1994, 28 (05) :341-346

[3] LOW-TEMPERATURE MAGNETIC, THERMAL, AND TRANSPORT-PROPERTIES OF FESI [J].

HUNT, MB ;

CHERNIKOV, MA ;

FELDER, E ;

OTT, HR ;

FISK, Z ;

CANFIELD, PC .

PHYSICAL REVIEW B, 1994, 50 (20) :14933-14941

[4] PARAMAGNETIC EXCITED STATE OF FESI [J].

JACCARINO, V ;

WERTHEIM, GK ;

WERNICK, JH ;

WALKER, LR ;

ARAJS, S .

PHYSICAL REVIEW, 1967, 160 (03) :476-+

[5] LOW-TEMPERATURE PROPERTIES OF EPSILON-FESI FROM AB-INITIO BAND THEORY [J].

JARLBORG, T .

PHYSICAL REVIEW B, 1995, 51 (16) :11106-11109

[6] HIGH-TEMPERATURE SPIN DYNAMICS OF A CUBIC FERROMAGNET PD2MNSN [J].

KOHGI, M ;

ENDOH, Y ;

ISHIKAWA, Y ;

YOSHIZAWA, H ;

SHIRANE, G .

PHYSICAL REVIEW B, 1986, 34 (03) :1762-1769

[7] TEMPERATURE-INDUCED LOCAL MAGNETIC-MOMENT IN NARROW-BAND ELECTRON-SYSTEMS [J].

MORIYA, T .

SOLID STATE COMMUNICATIONS, 1978, 26 (08) :483-486

[8] SPIN FLUCTUATION THEORY OF ITINERANT ELECTRON FERROMAGNETISM - UNIFIED PICTURE [J].

MORIYA, T ;

TAKAHASHI, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1978, 45 (02) :397-408

[9]

Moriya T., 1985, SPIN FLUCTUATIONS IT

[10] POLARIZATION ANALYSIS NEUTRON-SCATTERING OF ANOMALOUS PARAMAGNETIC FESI [J].

MOTOYA, K ;

NISHI, M ;

ITO, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1980, 49 (04) :1631-1632