Magnetic domain analysis by in-situ TEM observation of magnetic refrigerant La(Fe0.90Si0.10)13

N. Kawamoto, Yasukazu Murakami, D. Shindo, K. Fukamichi, S. Fujieda, A. Fujita

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

The thermally induced first-order magnetic phase transition in a La(Fe0.90Si0.10)13 compound has been observed at the Curie temperature TC by using Lorentz microscopy in the Fresnel mode. On heating the specimen, the magnetic domains instantly disappeared at TC due to the nature of the first-order phase transition. The coexistence of the ferromagnetic and paramagnetic phases was observed at TC. The magnetic domain structure below TC was unchanged by repeating the thermal cycles. This fact implies that the phase transition during thermal cycles does not induce any lattice defects that degrade the magnetocaloric effect.

元の言語英語
ページ(範囲)2815-2817
ページ数3
ジャーナルJournal of Magnetism and Magnetic Materials
310
発行部数2 SUPPL. PART 3
DOI
出版物ステータス出版済み - 3 1 2007
外部発表Yes

Fingerprint

Magnetic domains
refrigerants
Refrigerants
magnetic domains
Phase transitions
Transmission electron microscopy
transmission electron microscopy
Magnetocaloric effects
cycles
Crystal defects
Curie temperature
Microscopic examination
microscopy
Heating
heating
defects
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

これを引用

Magnetic domain analysis by in-situ TEM observation of magnetic refrigerant La(Fe0.90Si0.10)13. / Kawamoto, N.; Murakami, Yasukazu; Shindo, D.; Fukamichi, K.; Fujieda, S.; Fujita, A.

:: Journal of Magnetism and Magnetic Materials, 巻 310, 番号 2 SUPPL. PART 3, 01.03.2007, p. 2815-2817.

研究成果: ジャーナルへの寄稿記事

Kawamoto, N. ; Murakami, Yasukazu ; Shindo, D. ; Fukamichi, K. ; Fujieda, S. ; Fujita, A. / Magnetic domain analysis by in-situ TEM observation of magnetic refrigerant La(Fe0.90Si0.10)13. :: Journal of Magnetism and Magnetic Materials. 2007 ; 巻 310, 番号 2 SUPPL. PART 3. pp. 2815-2817.
@article{5e4729c164bf4d1dbfe3f91042fb9e2c,
title = "Magnetic domain analysis by in-situ TEM observation of magnetic refrigerant La(Fe0.90Si0.10)13",
abstract = "The thermally induced first-order magnetic phase transition in a La(Fe0.90Si0.10)13 compound has been observed at the Curie temperature TC by using Lorentz microscopy in the Fresnel mode. On heating the specimen, the magnetic domains instantly disappeared at TC due to the nature of the first-order phase transition. The coexistence of the ferromagnetic and paramagnetic phases was observed at TC. The magnetic domain structure below TC was unchanged by repeating the thermal cycles. This fact implies that the phase transition during thermal cycles does not induce any lattice defects that degrade the magnetocaloric effect.",
author = "N. Kawamoto and Yasukazu Murakami and D. Shindo and K. Fukamichi and S. Fujieda and A. Fujita",
year = "2007",
month = "3",
day = "1",
doi = "10.1016/j.jmmm.2006.10.954",
language = "English",
volume = "310",
pages = "2815--2817",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",
number = "2 SUPPL. PART 3",

}

TY - JOUR

T1 - Magnetic domain analysis by in-situ TEM observation of magnetic refrigerant La(Fe0.90Si0.10)13

AU - Kawamoto, N.

AU - Murakami, Yasukazu

AU - Shindo, D.

AU - Fukamichi, K.

AU - Fujieda, S.

AU - Fujita, A.

PY - 2007/3/1

Y1 - 2007/3/1

N2 - The thermally induced first-order magnetic phase transition in a La(Fe0.90Si0.10)13 compound has been observed at the Curie temperature TC by using Lorentz microscopy in the Fresnel mode. On heating the specimen, the magnetic domains instantly disappeared at TC due to the nature of the first-order phase transition. The coexistence of the ferromagnetic and paramagnetic phases was observed at TC. The magnetic domain structure below TC was unchanged by repeating the thermal cycles. This fact implies that the phase transition during thermal cycles does not induce any lattice defects that degrade the magnetocaloric effect.

AB - The thermally induced first-order magnetic phase transition in a La(Fe0.90Si0.10)13 compound has been observed at the Curie temperature TC by using Lorentz microscopy in the Fresnel mode. On heating the specimen, the magnetic domains instantly disappeared at TC due to the nature of the first-order phase transition. The coexistence of the ferromagnetic and paramagnetic phases was observed at TC. The magnetic domain structure below TC was unchanged by repeating the thermal cycles. This fact implies that the phase transition during thermal cycles does not induce any lattice defects that degrade the magnetocaloric effect.

UR - http://www.scopus.com/inward/record.url?scp=33847631161&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33847631161&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2006.10.954

DO - 10.1016/j.jmmm.2006.10.954

M3 - Article

VL - 310

SP - 2815

EP - 2817

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 2 SUPPL. PART 3

ER -