Evidence for preferential rearrangements of martensite variants by magnetic field in antiferromagnetic CoO crystal
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Article number | 051914 |
Journal / Publication | Applied Physics Letters |
Volume | 95 |
Issue number | 5 |
Publication status | Published - 2009 |
Externally published | Yes |
Link(s)
Abstract
The synchrotron high-energy x-ray diffraction provides the direct crystallographic evidence for the magnetic-field-driven preferential rearrangements of martensite multivariants in antiferromagnetic CoO crystal. When a magnetic field was incrementally applied up to 6 T on the CoO single crystal cooled below the Ńel temperature, the martensite variants with the magnetization easy-axis parallel to the magnetic field direction (H) were consumed, while the variants with magnetic moments perpendicular to H were enhanced. The microscopic origin for the observation is discussed, which provides important information for understanding the magnetic-field-driven strain observed in the antiferromagnetic alloys, with a selection principle on martensite variants different from that found in the ferromagnetic shape memory alloys. © 2009 American Institute of Physics.
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Citation Format(s)
Evidence for preferential rearrangements of martensite variants by magnetic field in antiferromagnetic CoO crystal. / Nie, Z. H.; Ren, Y.; Terai, T. et al.
In: Applied Physics Letters, Vol. 95, No. 5, 051914, 2009.
In: Applied Physics Letters, Vol. 95, No. 5, 051914, 2009.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review