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Influence of temperature and in‐plane fields on vertical Bloch lines in the walls of the first kind of dumbbell domain
Author(s) -
Liu Suping,
Xu Jianping,
Guo Gexin,
Zhen Congmian,
Nie Xiangfu
Publication year - 2005
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200440055
Subject(s) - domain (mathematical analysis) , dumbbell , physics , domain wall (magnetism) , annihilation , plane (geometry) , atmospheric temperature range , field (mathematics) , condensed matter physics , magnetic field , geometry , magnetization , mathematics , quantum mechanics , thermodynamics , mathematical analysis , medicine , pure mathematics , physical therapy
The stability of vertical Bloch lines (VBLs) in the domain walls of the first kind of dumbbell domains (IDs) in garnet bubble films as regards both temperature and in‐plane field is investigated experimentally. It is found that there exists a critical in‐plane field range [ H ip (1) ( T ), H ip (2) ( T )] for the VBLs' annihilation in the walls of IDs at various temperatures from room temperature to T 0 . When H ip ≤ H ip (1) ( T ), the number of VBLs in the domain walls of IDs is constant; when H ip (1) ( T ) < H ip < H ip (2) ( T ), the VBLs in the domain walls of IDs will annihilate gradually and the number of annihilations increases with increasing H ip ; when H ip ≥ H ip (2) ( T ), the VBLs in the domain walls of IDs annihilate completely. Moreover, the range [ H ip (1) ( T ), H ip (2) ( T )] decreases with increasing temperature, while the values of H ip (1) ( T ) and H ip (2) ( T ) also decrease, and reach zero at T 0 ′ and T 0 , respectively. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)