TY - JOUR
T1 - Evidence for preferential rearrangements of martensite variants by magnetic field in antiferromagnetic CoO crystal
AU - Nie, Z. H.
AU - Ren, Y.
AU - Terai, T.
AU - Wang, Y. D.
AU - Brown, D. E.
AU - Kakeshita, T.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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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U2 - 10.1063/1.3195730
DO - 10.1063/1.3195730
M3 - RGC 21 - Publication in refereed journal
SN - 0003-6951
VL - 95
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 5
M1 - 051914
ER -