中国物理B ›› 1997, Vol. 6 ›› Issue (8): 619-623.doi: 10.1088/1004-423X/6/8/008

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FORMATION OF MULTI-BRANCHED DOMAINS IN GARNET BUBBLE FILMS BY LOW-BIAS-PULSE METHOD

郭革新1, 韩宝善2, 孟广庆2   

  1. (1)Department of Physics, Hebei Teachers University, Shijiazhuang 050016. China; (2)State Key Laboratory of Magnetism, Institute of Physics, Academia Sinica, Beijing 100080, China
  • 收稿日期:1996-12-18 出版日期:1997-08-20 发布日期:1997-08-20

FORMATION OF MULTI-BRANCHED DOMAINS IN GARNET BUBBLE FILMS BY LOW-BIAS-PULSE METHOD

HAN BAO-SHAN (韩宝善)a, MENG GUANG-QING (孟广庆)a, GUO GE-XIN (郭革新)b   

  1. a State Key Laboratory of Magnetism, Institute of Physics, Academia Sinica, Beijing 100080, China; b Department of Physics, Hebei Teachers University, Shijiazhuang 050016. China
  • Received:1996-12-18 Online:1997-08-20 Published:1997-08-20

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摘要： The formation of multi-branched domains( MBDs) at low static bias field was first studied. With multiple branches, MBDs contain more or less same-signed vertical-Bloch-lines (VBLs) in their walls, Experiments. on four samples have shown that under certain conditions, the amount and hardness of the MBDs formed can be easily controlled, and so-called "low-bias-field method" is another effective way to form VBL chains. It was found that MBDs are formed due to the expansion of domain segments after compressed by a rectangular bias pulse. The number of VBLs nucleated in domain walls is affected by the space where the domains expand rapidly.

Abstract: The formation of multi-branched domains( MBDs) at low static bias field was first studied. With multiple branches, MBDs contain more or less same-signed vertical-Bloch-lines (VBLs) in their walls, Experiments. on four samples have shown that under certain conditions, the amount and hardness of the MBDs formed can be easily controlled, and so-called "low-bias-field method" is another effective way to form VBL chains. It was found that MBDs are formed due to the expansion of domain segments after compressed by a rectangular bias pulse. The number of VBLs nucleated in domain walls is affected by the space where the domains expand rapidly.

中图分类号:  (Domain structure (including magnetic bubbles and vortices))

  • 75.70.Kw
75.50.Gg (Ferrimagnetics) 75.70.Ak (Magnetic properties of monolayers and thin films) 62.20.Qp (Friction, tribology, and hardness) 81.40.Np (Fatigue, corrosion fatigue, embrittlement, cracking, fracture, and failure) 75.60.Ch (Domain walls and domain structure)