STRUCTURAL AND MAGNETIC-TRANSFORMATIONS IN Y3FE5O12 UNDER NEUTRON-IRRADIATION

被引：10

作者：

CHUKALKIN, YG

SHTIRTS, VR

GOSHCHITSKII, BN

机构：

[1] Institute of Metal Physics, Academy of Sciences of the Ussr, Ural Scientific Research Center

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1991年 / 125卷 / 01期

关键词：

D O I：

10.1002/pssa.2211250127

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Samples of yttrium iron garnet (YIG) irradiated by fluences of fast neutrons (0 to 3 x 10(24) m-2) are investigated by X-ray, neutron diffraction, and magnetic methods. It is shown that irradiated samples have spatial-inhomogeneous structure characterized by the presence of microregions of the initial crystal, amorphous and defected phases. The coexistence of these interacting microregions, which relative concentrations vary depending on fluence, is responsible for magnetic transformations observed in YIG under irradiation. It is shown that the observed regularities of radiation transformations may be explained in terms of the continuum percolation theory.

引用

页码：301 / 311

页数：11

共 33 条

[1] EXCLUDED VOLUME AND ITS RELATION TO THE ONSET OF PERCOLATION [J].

BALBERG, I ;

ANDERSON, CH ;

ALEXANDER, S ;

WAGNER, N .

PHYSICAL REVIEW B, 1984, 30 (07) :3933-3943

[2] PERCOLATION THRESHOLDS IN THE 3-DIMENSIONAL STICKS SYSTEM [J].

BALBERG, I ;

BINENBAUM, N ;

WAGNER, N .

PHYSICAL REVIEW LETTERS, 1984, 52 (17) :1465-1468

[3] AMORPHIZATION MECHANISMS IN ION-BOMBARDED METALLIC ALLOYS [J].

BENYAGOUB, A ;

THOME, L .

PHYSICAL REVIEW B, 1988, 38 (15) :10205-10216

[4]

BREZGUNOV MM, 1988, UKR FIZ ZH+, V33, P616

[5]

BREZGUNOV MM, 1984, FIZ TVERD TELA+, V26, P1231

[6] AMORPHIZATION OF NEUTRON-IRRADIATED YTTRIUM-IRON-GARNET [J].

CHUKALKIN, YG ;

SHTIRTS, VR ;

GOSHCHITSKII, BN .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1983, 79 (02) :361-366

[7]

CHUKALKIN YG, 1988, FIZ TVERD TELA+, V30, P320

[8] THE STRUCTURE AND MAGNETISM OF AMORPHOUS Y3FE5O12 [J].

CHUKLKIN, YG ;

SHTIRZ, VR ;

GOSHCHITSKII, BN .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1989, 112 (01) :161-174

[9]

ELAN WT, 1984, PHYS REV LETT, V52, P1516

[10]

Goshchitskii B. N., 1986, STRUKTURA MAGNITNYE

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