Magnetic properties of stearate films with 3d transition metal ions fabricated by the Langmuir-Blodgett method

被引：20
作者：
Ando, Y
Hiroike, T
Miyashita, T
Miyazaki, T
机构：
[1] Department of Applied Physics, Faculty of Engineering, Tohoku University, Sendai 980-77, Aza-aoba, Aramaki, Aobaku
来源：
THIN SOLID FILMS | 1996年 / 278卷 / 1-2期
关键词：
electron spin resonance (ESR); Langmuir-Blodgett films (LB films); magnetic properties and measurements; multilayers;
D O I：
10.1016/0040-6090(95)08146-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Stearate films with 3d transition metal ions, such as Mn, Fe, Co and Ni, were fabricated by the Langmuir-Blodgett (LB) method. The formation of salts was determined by Fourier transform infrared (FTIR) analysis, and the structure oriented two-dimensionally was confirmed by X-ray analysis and electron spin resonance (ESR) spectroscopy. The hydrocarbon chains with Fe, Co and Ni ions are arranged in a hexagonal unit cell aligned vertically to the film surface. However, the packing arrangement of the hydrocarbon chain with an Mn ion is orthorhombic with a tilt angle of 10 degrees to the film normal direction. The magnetization curves were measured at 4.5 K and the temperature dependence of the magnetic susceptibility was measured in the range 4.5-100 K. The susceptibility of the films showed a Curie-Weiss behaviour, The asymptotic temperature theta(p) of the Ni stearate film was positive, i.e. the film exhibited ferromagnetic interaction. This was explained by assuming the presence of a superexchange interaction of cation-anion-cation type making an angle of 103 degrees-109 degrees.
引用
收藏
页码：144 / 149
页数：6
相关论文
共 36 条
[1]  
ANDO Y, IN PRESS THIN SOLID
[2]   ANTI-FERROMAGNETISM OF QUASI TWO-DIMENSIONAL MANGANESE STEARATE [J].
AVIRAM, A ;
POMERANTZ, M .
SOLID STATE COMMUNICATIONS, 1982, 41 (04) :297-300
[3]  
Baes C.F., 1976, HYDROLYSIS CATIONS
[4]   COMPOSITION OF STEARIC ACID MONOLAYERS FROM CALCIUM-CONTAINING SUBSTRATES [J].
BAGG, J ;
HABER, MD ;
GREGOR, HP ;
ABRAMSON, MB ;
FICHMAN, M .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1964, 86 (14) :2759-&
[5]   INVESTIGATION OF THE INPLANE STRUCTURE OF PB AND NI STEARATE MULTILAYERS BY MEANS OF GRAZING-INCIDENCE X-RAY-DIFFRACTION [J].
BARBERKA, TA ;
HOHNE, U ;
PIETSCH, U ;
METZGER, TH .
THIN SOLID FILMS, 1994, 244 (1-2) :1061-1066
[6]   PREPARATION OF ULTRATHIN FERRIC-OXIDE LAYERS USING LANGMUIR-BLODGETT-FILMS [J].
BRANDL, D ;
SCHOPPMANN, C ;
TOMASCHKO, C ;
MARKL, J ;
VOIT, H .
THIN SOLID FILMS, 1994, 249 (01) :113-117
[7]   PLASMA DESORPTION MASS-SPECTROMETRY OF LANGMUIR-BLODGETT-FILMS - DEPENDENCE OF SALT FORMATION OF ARACHIDIC ACID MONOLAYERS ON THE SUBPHASE PARAMETERS [J].
BRANDL, D ;
SCHOPPMANN, C ;
TOMASCHKO, C ;
VOLT, H .
THIN SOLID FILMS, 1994, 249 (02) :215-218
[8]   PERMEATION OF GASES THROUGH LANGMUIR-BLODGETT-FILMS OF IRON(III) STEARATE AND IRON(III) COMPLEXES [J].
BRUINSMA, PJ ;
STROEVE, P .
THIN SOLID FILMS, 1994, 244 (1-2) :958-961
[9]   STRUCTURE AND TEMPERATURE-DEPENDENCE OF FATTY-ACID LANGMUIR-BLODGETT FILMS STUDIED BY NEUTRON AND X-RAY-SCATTERING [J].
BUHAENKO, MR ;
GRUNDY, MJ ;
RICHARDSON, RM ;
ROSER, SJ .
THIN SOLID FILMS, 1988, 159 :253-265
[10]   HYDROTHERMAL PREPARATION AND LOW-TEMPERATURE MAGNETIC PROPERTIES OF MN(OH)2 [J].
CHRISTENSEN, AN ;
OLLIVIER, G .
SOLID STATE COMMUNICATIONS, 1972, 10 (07) :609-+
1234