SPONTANEOUS MAGNETIZATION INDUCED IN THE SPINEL ZNFE2O4 BY HEAVY-ION IRRADIATION IN THE ELECTRONIC STOPPING POWER REGIME

被引：51
|
作者：
STUDER, F [1 ]
HOUPERT, C [1 ]
GROULT, D [1 ]
FAN, JY [1 ]
MEFTAH, A [1 ]
TOULEMONDE, M [1 ]
机构：
[1] CIRIL,F-14040 CAEN,FRANCE
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1993年 / 82卷 / 01期
关键词：
D O I：
10.1016/0168-583X(93)95087-L
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Zinc ferrite, ZnFe2O4, has been irradiated by GeV heavy ions (Kr, Xe, Pb, U) and the induced chemical and physical modifications have been investigated by magnetization measurements, Mossbauer spectroscopy and high resolution electron microscopy. Xe, Pb and U ion irradiation leads to amorphized latent tracks, while Kr ion irradiation produced Moire's characteristic lattice misorientations. In both cases, relaxation phenomena involve atomic displacements and a subsequent distribution of ferric ions over tetrahedral and octahedral sites. The result is the creation of a new magnetic ordering and spontaneous magnetization which can reach 2 mu(B) at 300 K.
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页码：91 / 102
页数：12
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