Neutron depolarisation study of nanocrystalline Feb>73.5 b>Nbb>3 b>Cub>1 b>Sib>13.5 b>Bb>9 b> alloy
- 作者：Kõ ; szegi ; L. ; Somogyvá ; ri ; Z. ; van Dijk ; N.H. ; Rekveldt ; M.Th.
- 关键词：61.12.&minus ; q ; 75.60.&minus ; d ; 75.75.+a ; 81.40.&minus ; z ; Magnetic nanostructures ; Neutron depolarisation ; Magnetic domain structures
- 刊名：Physica B
- 出版年：2003
- 期刊代码：53_09214526
- 类别：ph
- 出版时间：July, 2003
- 卷：335
- 期：1-4
- 页码：140-142
- 文件大小：304 K
摘要
The magnetic properties of the nanocrystalline soft-magnetic alloy Feb>73.5 b>Nbb>3 b>Cub>1 b>Sib>13.5 b>Bb>9 b> have been investigated with the 3D neutron depolarisation technique as a function of temperature and external magnetic field. Around the reverse coercive field (H=−Hb>c b>) where the sample magnetisation vanishes the formation of a domain structure of alternating up–down domains perpendicular to the long axis of the ribbon was observed. An unexpected non-monotonic temperature evolution of the sample magnetisation in constant field, exhibiting a sudden increase in the magnetisation above T=530K with a local maximum at T=540K, was observed.