Abstract
The phenomenon of ferromagnetic domain switching, which occurred in a colossal magnetoresistive manganite La0:25Pr0:375Ca 0:375MnO3, was studied by sophisticated transmission electron microscopy techniques. Lorentz microscopy observations revealed the size dependence of the magnetization reversal behaviors. A small single-domain (70 nm) exhibited a direct switching process to another single-domain form, while a large single domain (150 nm) showed a multiple-domain configuration before the transformation to another single-domain state. We also demonstrated significant magnetic interaction in an assembly of single domains; i.e., neighboring single domains underwent magnetization reversal simultaneously. The results provide useful information for a deeper understanding of the switching process in a single-domain state, which can be observed in many advanced materials related to magnetic data storage media.
| Original language | English |
|---|---|
| Pages (from-to) | 630031-630034 |
| Number of pages | 4 |
| Journal | Japanese journal of applied physics |
| Volume | 49 |
| Issue number | 6 PART 1 |
| DOIs | |
| Publication status | Published - Jun 1 2010 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)
Cite this
Lorentz microscopy study on magnetization reversal process in single-domain state in perovskite-type manganite. / Mamishin, Shuichi; Kasai, Hiroto; Xia, Weixing; Murakami, Yasukazu; Shindo, Daisuke; Mori, Shigeo; Tonomura, Akira.
In: Japanese journal of applied physics, Vol. 49, No. 6 PART 1, 01.06.2010, p. 630031-630034.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Lorentz microscopy study on magnetization reversal process in single-domain state in perovskite-type manganite
AU - Mamishin, Shuichi
AU - Kasai, Hiroto
AU - Xia, Weixing
AU - Murakami, Yasukazu
AU - Shindo, Daisuke
AU - Mori, Shigeo
AU - Tonomura, Akira
PY - 2010/6/1
Y1 - 2010/6/1
N2 - The phenomenon of ferromagnetic domain switching, which occurred in a colossal magnetoresistive manganite La0:25Pr0:375Ca 0:375MnO3, was studied by sophisticated transmission electron microscopy techniques. Lorentz microscopy observations revealed the size dependence of the magnetization reversal behaviors. A small single-domain (70 nm) exhibited a direct switching process to another single-domain form, while a large single domain (150 nm) showed a multiple-domain configuration before the transformation to another single-domain state. We also demonstrated significant magnetic interaction in an assembly of single domains; i.e., neighboring single domains underwent magnetization reversal simultaneously. The results provide useful information for a deeper understanding of the switching process in a single-domain state, which can be observed in many advanced materials related to magnetic data storage media.
AB - The phenomenon of ferromagnetic domain switching, which occurred in a colossal magnetoresistive manganite La0:25Pr0:375Ca 0:375MnO3, was studied by sophisticated transmission electron microscopy techniques. Lorentz microscopy observations revealed the size dependence of the magnetization reversal behaviors. A small single-domain (70 nm) exhibited a direct switching process to another single-domain form, while a large single domain (150 nm) showed a multiple-domain configuration before the transformation to another single-domain state. We also demonstrated significant magnetic interaction in an assembly of single domains; i.e., neighboring single domains underwent magnetization reversal simultaneously. The results provide useful information for a deeper understanding of the switching process in a single-domain state, which can be observed in many advanced materials related to magnetic data storage media.
UR - http://www.scopus.com/inward/record.url?scp=77955313208&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955313208&partnerID=8YFLogxK
U2 - 10.1143/JJAP.49.063003
DO - 10.1143/JJAP.49.063003
M3 - Article
AN - SCOPUS:77955313208
VL - 49
SP - 630031
EP - 630034
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
SN - 0021-4922
IS - 6 PART 1
ER -