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Domain structure and reorientation in CoFe2O4
Abes, M.; Koops, C. T.; Hrkac, S. B.; McCord, J.; Urs, N. O.; Wolff, N.; Kienle, L.; Ren, W. J.; Bouchenoire, L.; Murphy, B. M.; Magnussen, O. M.; Murphy, BM (reprint author), Univ Kiel, Inst Expt & Appl Phys, D-24098 Kiel, Germany.; Murphy, BM (reprint author), Univ Kiel, Ruprecht Haensel Lab, D-24098 Kiel, Germany.
2016-05-18
发表期刊PHYSICAL REVIEW B
ISSN2469-9950
卷号93期号:19
摘要The microscopic processes underlying magnetostriction in ferrites were studied for the case of CoFe2O4 single crystals by high-resolution in situ x-ray diffraction and complementary magnetic microscopy techniques. The data support the reports of Yang and Ren [Phys. Rev. B 77, 014407 ( 2008)] that magnetostriction in these materials originates from the switching of crystallographic domains, similar to ferroelastic or ferroelectric domain switching, and reveals the presence of two coexisting tetragonal spinel structures, corresponding to domains of high and of low strain. The latter alternate in the crystal, separated by 90 degrees domain boundaries, and can be explained by the effect of internal stress emerging during the transition into the ferrimagnetic phase. During magnetization of the sample two structural transitions are observed: a conversion of the transversal into axial domains at 1.95 kOe and a growth of the high-strain domains at the cost of the low-strain axial domains at 2.8 kOe. These microscopic changes are in good agreement with the macroscopic magnetization and magnetostriction behavior of CoFe2O4.
部门归属[abes, m. ; koops, c. t. ; hrkac, s. b. ; murphy, b. m. ; magnussen, o. m.] univ kiel, inst expt & appl phys, d-24098 kiel, germany ; [mccord, j. ; urs, n. o. ; wolff, n. ; kienle, l.] univ kiel, inst mat sci, d-24143 kiel, germany ; [ren, w. j.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [bouchenoire, l.] european synchrotron radiat facil, xmas, f-38000 grenoble, france ; [bouchenoire, l.] univ liverpool, dept phys, liverpool l69 7ze, merseyside, england ; [murphy, b. m. ; magnussen, o. m.] univ kiel, ruprecht haensel lab, d-24098 kiel, germany ; [abes, m.] univ ghent, dept solid state sci, b-9000 ghent, belgium
学科领域Physics
资助者Deutsche Forschungsgemeinschaft via the collaborative research centre [SFB 855]; National Basic Research Program of China [2012CB619404]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75872
专题中国科学院金属研究所
通讯作者Murphy, BM (reprint author), Univ Kiel, Inst Expt & Appl Phys, D-24098 Kiel, Germany.; Murphy, BM (reprint author), Univ Kiel, Ruprecht Haensel Lab, D-24098 Kiel, Germany.
推荐引用方式
GB/T 7714
Abes, M.,Koops, C. T.,Hrkac, S. B.,et al. Domain structure and reorientation in CoFe2O4[J]. PHYSICAL REVIEW B,2016,93(19).
APA Abes, M..,Koops, C. T..,Hrkac, S. B..,McCord, J..,Urs, N. O..,...&Murphy, BM .(2016).Domain structure and reorientation in CoFe2O4.PHYSICAL REVIEW B,93(19).
MLA Abes, M.,et al."Domain structure and reorientation in CoFe2O4".PHYSICAL REVIEW B 93.19(2016).
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