Magnetic property of CoO ultrafine particle

被引：25

作者：

Sako, S

Ohshima, K

Sakai, M

Bandow, S

机构：

[1] MATSUMOTO DENT COLL,PHYS LAB,SHIOJIRI 39907,JAPAN

[2] INST MOL SCI,CTR INSTRUMENT,OKAZAKI,AICHI 444,JAPAN

来源：

SURFACE REVIEW AND LETTERS | 1996年 / 3卷 / 01期

关键词：

D O I：

10.1142/S0218625X96000231

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 effect of the decrease in the coordination number of atoms in surface on the magnetic transition temperature was investigated experimentally and theoretically for CoO ultrafine particles. The decreasing tendency of the Neel temperature T-N with decreasing average size was confirmed in the size range from 2.0 to 3.0 nm through the ESR measurement. The similar tendency of T-N for size was gained through the calculation of T-N in the mean-field theory using the prism model within the Ising thin-film model.

引用

页码：109 / 113

页数：5

共 15 条

[1] MEAN-FIELD THEORY OF MAGNETIC TRANSITIONS IN SEMI-INFINITE ISING-MODELS [J].

AGUILERAGRANJA, F ;

MORANLOPEZ, JL .

PHYSICAL REVIEW B, 1985, 31 (11) :7146-7150

[2]

[Anonymous], PHYS REV B, DOI DOI 10.1103/PHYSREVB.39.6914

[3] TEMPERATURE DEPENDENCE OF PARAMAGNETIC RESONANCE LINEWIDTHS IN MNS AND MNO [J].

BATTLES, JW .

JOURNAL OF APPLIED PHYSICS, 1971, 42 (04) :1286-&

[4]

BUCHER JP, 1990, PHYS REV LETT, V65, P488

[5] SPIN RELAXATION IN SMALL FREE IRON CLUSTERS [J].

DEHEER, WA ;

MILANI, P ;

CHATELAIN, A .

PHYSICAL REVIEW LETTERS, 1990, 65 (04) :488-491

[6] MAGNETIC STUDIES OF FREE NONFERROMAGNETIC CLUSTERS [J].

DOUGLASS, DC ;

BUCHER, JP ;

BLOOMFIELD, LA .

PHYSICAL REVIEW B, 1992, 45 (11) :6341-6344

[7] FINITE-SIZE MODIFICATIONS OF THE MAGNETIC-PROPERTIES OF CLUSTERS [J].

HENDRIKSEN, PV ;

LINDEROTH, S ;

LINDGARD, PA .

PHYSICAL REVIEW B, 1993, 48 (10) :7259-7273

[8] MAGNETISM IN SMALL VANADIUM CLUSTERS [J].

LIU, F ;

KHANNA, SN ;

JENA, P .

PHYSICAL REVIEW B, 1991, 43 (10) :8179-8182

[9] FERROMAGNETISM IN SMALL CLUSTERS [J].

MERIKOSKI, J ;

TIMONEN, J ;

MANNINEN, M ;

JENA, P .

PHYSICAL REVIEW LETTERS, 1991, 66 (07) :938-941

[10] MAGNETIC-PROPERTIES OF CUBO-OCTAHEDRAL ISING CLUSTERS [J].

MORANLOPEZ, JL ;

BENNEMANN, KH ;

MONTEJANOCARRIZALES, JM ;

AGUILERAGRANJA, F .

SOLID STATE COMMUNICATIONS, 1993, 88 (02) :101-104

← 1 2 →