TY - GEN
T1 - Magnetostrictive property and magnetic domain structure of fe-ga alloy single crystal under tensile strain
AU - Fujieda, Shun
AU - Asano, Shimpei
AU - Hashi, Shuichiro
AU - Ishiyama, Kazushi
AU - Fukuda, Tsuguo
AU - Suzuki, Shigeru
N1 - Funding Information:
This research was supported by TEPCO Memorial Foundation, the Core Research for Evolutional Science and Technology Program of the Japan Science and Technology Agency and JSPS KAKENHI Grant Number 17H03374 and 17H03422. The authors would like to thank Dr. Rie Umetsu at Tohoku University for the experimental support. In addition, the authors acknowledge Dr. Toshiyuki Ueno at Kanazawa University, Dr. Toru Kawamata and Dr. Rayko Shimura at Tohoku University for the useful discussion.
Publisher Copyright:
© 2018 Trans Tech Publications, Switzerland.
PY - 2018
Y1 - 2018
N2 - The saturation value of the magnetostriction curve in the [100] direction of a Fe-Ga alloy single crystal was decreased from 226 to 55 ppm by applying the tensile strain of 533 ppm to the measured direction. By magnetic domain observation using a magneto-optic Kerr effect microscope, a complex structure composed of various magnetic domains was observed under zero applied strain. On the other hand, a stripe structure composed of magnetic domains with the magnetization direction in two kinds of <100> magnetic easy directions parallel to the tensile direction, which were separated by straight 180° domain walls, was observed under the tensile strain of 533 ppm. The characteristic magnetic domain structure due to the tensile strain was successfully observed as a cause of the significant decrease of the saturation value of the magnetostriction curve.
AB - The saturation value of the magnetostriction curve in the [100] direction of a Fe-Ga alloy single crystal was decreased from 226 to 55 ppm by applying the tensile strain of 533 ppm to the measured direction. By magnetic domain observation using a magneto-optic Kerr effect microscope, a complex structure composed of various magnetic domains was observed under zero applied strain. On the other hand, a stripe structure composed of magnetic domains with the magnetization direction in two kinds of <100> magnetic easy directions parallel to the tensile direction, which were separated by straight 180° domain walls, was observed under the tensile strain of 533 ppm. The characteristic magnetic domain structure due to the tensile strain was successfully observed as a cause of the significant decrease of the saturation value of the magnetostriction curve.
KW - Domain wall
KW - Inverse magnetostrictive effect
KW - Magneto-optic Kerr effect microscopy
KW - Magnetostriction
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UR - http://www.scopus.com/inward/citedby.url?scp=85064069692&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.941.914
DO - 10.4028/www.scientific.net/MSF.941.914
M3 - Conference contribution
AN - SCOPUS:85064069692
SN - 9783035712087
T3 - Materials Science Forum
SP - 914
EP - 918
BT - THERMEC 2018
A2 - Shabadi, R.
A2 - Ionescu, Mihail
A2 - Jeandin, M.
A2 - Richard, C.
A2 - Chandra, Tara
PB - Trans Tech Publications Ltd
T2 - 10th International Conference on Processing and Manufacturing of Advanced Materials, 2018
Y2 - 9 July 2018 through 13 July 2018
ER -