ON THE ROLE OF PARTICLE ROTATION ON THE BLOCKING PROCESSES OF BAFE10.4CO0.8TI0.8O19 NANOCRYSTALLINE POWDER

被引：6

作者：

BATLLE, X

DELMURO, MG

LABARTA, A

MARTINEZ, B

GORNERT, P

机构：

[1] CSIC,ICMAB,E-08193 BARCELONA,SPAIN

[2] IPHT,O-6900 JENA,GERMANY

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1995年 / 140卷

关键词：

D O I：

10.1016/0304-8853(94)00953-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of particle rotation on the magnetic properties of BaFe10.4Co0.8Ti0.8O19 nanocrystalline powder is discussed. The time dependence of the thermoremanence is analyzed in terms of T ln(t/tau(0)) scaling, instead of the logarithmic approximation. The relaxation rate at low temperatures is discussed assuming that there exists a larger amount of lowest energy barriers than expected for a single log-normal distribution.

引用

收藏

页码：473 / 474

页数：2

相关论文

共 9 条

[1] MAGNETIC STUDY OF M-TYPE DOPED BARIUM FERRITE NANOCRYSTALLINE POWDERS [J].

BATLLE, X ;

DELMURO, MG ;

TEJADA, J ;

PFEIFFER, H ;

GORNERT, P ;

SINN, E .

JOURNAL OF APPLIED PHYSICS, 1993, 74 (05) :3333-3340

[2] STATIC MAGNETIC-PROPERTIES OF NANOCRYSTALLINE CO-TI DOPED BARIUM FERRITE BAFE12-2XCOXTIXO19 (X=0.8) [J].

BATLLE, X ;

DELMURO, MG ;

TEJADA, J ;

PFEIFFER, H ;

GORNERT, P ;

SINN, E .

IEEE TRANSACTIONS ON MAGNETICS, 1994, 30 (02) :708-710

[3] NANOCRYSTALLINE M-TYPE HEXAFERRITE POWDERS - PREPARATION, GEOMETRIC AND MAGNETIC-PROPERTIES [J].

GORNERT, P ;

PFEIFFER, H ;

SINN, E ;

MULLER, R ;

SCHUPPEL, W ;

ROSLER, M ;

BATLLE, X ;

DELMURO, MG ;

TEJADA, J ;

GALI, S .

IEEE TRANSACTIONS ON MAGNETICS, 1994, 30 (02) :714-716

[4] T-LN(T/TAU(0)) SCALING IN SMALL-PARTICLE SYSTEMS - LOW-TEMPERATURE BEHAVIOR [J].

IGLESIAS, O ;

BADIA, F ;

LABARTA, A ;

BALCELLS, L .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 140 :399-400

[5] MAGNETIC-RELAXATION IN SMALL-PARTICLE SYSTEMS - T IN(T/TAU-0) SCALING [J].

LABARTA, A ;

IGLESIAS, O ;

BALCELLS, L ;

BADIA, F .

PHYSICAL REVIEW B, 1993, 48 (14) :10240-10246

[6] MAGNETIC-PROPERTIES OF NANOCRYSTALLINE BARIUM HEXAFERRITE POWDERS - ANISOTROPY-FIELD AND INTERACTION EFFECTS [J].

PFEIFFER, H ;

SCHUPPEL, W ;

GORNERT, P ;

SINN, E ;

MULLER, R ;

BATLLE, X ;

DELMURO, MG ;

TEJADA, J .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 127 (1-2) :229-232

[7] RELAXATION BEHAVIOR OF MAGNETIC PARTICLE ASSEMBLIES DUE TO THERMAL FLUCTUATIONS [J].

PFEIFFER, H .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1990, 120 (01) :233-245

[8] INVESTIGATION OF MAGNETIC-PROPERTIES OF BARIUM FERRITE POWDERS BY REMANENCE CURVES [J].

PFEIFFER, H ;

SCHUPPEL, W .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1990, 119 (01) :259-269

[9] NONCOHERENT QUANTUM EFFECTS IN THE MAGNETIZATION REVERSAL OF A CHEMICALLY DISORDERED MAGNET - SMCO3.5CU1.5 [J].

UEHARA, M ;

BARBARA, B .

JOURNAL DE PHYSIQUE, 1986, 47 (02) :235-238