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Measurement of Bloch line coercivity in uniaxial garnet films
IEEE Transactions on Magnetics
Cited by: Papers (1)
The coercive field of vertical Bloch lines in several uniaxial garnet film samples has been measured by two different methods. With the first method, individual isolated Bloch lines in stripe-domain walls and their response to external magnetic fields are observed directly using a one-sided dark-field illumination technique. The second method detects Block line motion in bubble-domain walls photom...Show More
Observation of vertical Bloch lines using in-plane excitation fields
IEEE Transactions on Magnetics
Cited by: Papers (8)
To study the motion of vertical Bloch lines (VBL) in stripe domain walls in ferrimagnetic garnet films the experimental technique of using pulse in-plane fields has been applied. In addition the dynamics of VBLs, single and in a pair, have been examined in numerical simulations based on J. Slonczewski's equations of wall motion (1982). In contrast to the commonly used domain-wall rocking method, w...Show More
Resonance effects for different states of a circulating bubble
IEEE Transactions on Magnetics
Cited by: Papers (1)
The influence of an RF field superimposed on the DC bias on the tangential drive requirement of a moving bubble was measured. The bubble was maintained in continuous circular motion in a rotating gradient apparatus. With appropriate amplitude and frequency of RF field, the drive field required to move the bubble could be reduced. A minimum in the drive field occurred at an RF frequency of about 20...
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Show MoreDetermination of twist and charge of Bloch lines by direct optical observation
IEEE Transactions on Magnetics
Cited by: Papers (3)
The magnetization twist and charge of vertical Bloch lines (VBL) in stripe-domain walls in ferrimagnetic garnet films have been investigated using a polarizing light microscope. The illuminating light path was modified to obtain a polarized, one-sided, dark field illumination. Bloch lines are identified as dark or white spots on a stripe domain wall, which appears as a bright line on a dark backgr...
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Show MoreStudy of VBL punch-through thresholds by pulse in-plane fields
IEEE Transactions on Magnetics
Cited by: Papers (11)
An experimental technique using pulse in-plane fields has been used to study Vertical Bloch Line (VBL) dynamics. Typically a 4 Oe, 1 μs pulse was applied parallel to a confined stripe domain and the presence of VBL were detected by the orthogonal wall motion caused by gyrotropic coupling. This method was used to study Bloch line mobility, coercivity, saturation velocity and the process of punch-th...Show More
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