Large magnetocaloric effect in La(FexSi1-x) 13 itinerant-electron metamagnetic compounds

S. Fujieda; Asaya Fujita; K. Fukamichi

doi:10.1063/1.1498148

Large magnetocaloric effect in La(Fe_xSi_1-x) ₁₃ itinerant-electron metamagnetic compounds

S. Fujieda, Asaya Fujita, K. Fukamichi

Division of Inorganic Material Research

Research output: Contribution to journal › Article › peer-review

402 Citations (Scopus)

Abstract

The magnetocaloric effect (MCE) originated from the itinerant-electron metamagnetic transition for La(Fe_xSi_1-x)₁₃ compounds has been investigated. With increasing Fe concentration, the MCE is enhanced and both the isothermal magnetic entropy change ΔS_m and the adiabatic temperature change ΔT_ad for the compound with x=0.90 are -28J/kgK and 8.1 K, respectively, by changing the magnetic field from 0 to 2 T. Similar large MCE values are achieved around room temperature by controlling the Curie temperature by means of hydrogen absorption. Consequently, La(Fe_xSi_1-x)₁₃ compounds are promising as magnetic refrigerant materials working in relatively low magnetic fields.

Original language	English
Pages (from-to)	1276-1278
Number of pages	3
Journal	Applied Physics Letters
Volume	81
Issue number	7
DOIs	https://doi.org/10.1063/1.1498148
Publication status	Published - 2002 Aug 12

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.1498148

Fingerprint Dive into the research topics of 'Large magnetocaloric effect in La(FexSi1-x) 13 itinerant-electron metamagnetic compounds'. Together they form a unique fingerprint.

Cite this

@article{81d1b306e17440a4b11e19edd8c39479,

title = "Large magnetocaloric effect in La(FexSi1-x) 13 itinerant-electron metamagnetic compounds",

abstract = "The magnetocaloric effect (MCE) originated from the itinerant-electron metamagnetic transition for La(FexSi1-x)13 compounds has been investigated. With increasing Fe concentration, the MCE is enhanced and both the isothermal magnetic entropy change ΔSm and the adiabatic temperature change ΔTad for the compound with x=0.90 are -28J/kgK and 8.1 K, respectively, by changing the magnetic field from 0 to 2 T. Similar large MCE values are achieved around room temperature by controlling the Curie temperature by means of hydrogen absorption. Consequently, La(FexSi1-x)13 compounds are promising as magnetic refrigerant materials working in relatively low magnetic fields.",

author = "S. Fujieda and Asaya Fujita and K. Fukamichi",

year = "2002",

month = aug,

day = "12",

doi = "10.1063/1.1498148",

language = "English",

volume = "81",

pages = "1276--1278",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "7",

}

TY - JOUR

T1 - Large magnetocaloric effect in La(FexSi1-x) 13 itinerant-electron metamagnetic compounds

AU - Fujieda, S.

AU - Fujita, Asaya

AU - Fukamichi, K.

PY - 2002/8/12

Y1 - 2002/8/12

N2 - The magnetocaloric effect (MCE) originated from the itinerant-electron metamagnetic transition for La(FexSi1-x)13 compounds has been investigated. With increasing Fe concentration, the MCE is enhanced and both the isothermal magnetic entropy change ΔSm and the adiabatic temperature change ΔTad for the compound with x=0.90 are -28J/kgK and 8.1 K, respectively, by changing the magnetic field from 0 to 2 T. Similar large MCE values are achieved around room temperature by controlling the Curie temperature by means of hydrogen absorption. Consequently, La(FexSi1-x)13 compounds are promising as magnetic refrigerant materials working in relatively low magnetic fields.

AB - The magnetocaloric effect (MCE) originated from the itinerant-electron metamagnetic transition for La(FexSi1-x)13 compounds has been investigated. With increasing Fe concentration, the MCE is enhanced and both the isothermal magnetic entropy change ΔSm and the adiabatic temperature change ΔTad for the compound with x=0.90 are -28J/kgK and 8.1 K, respectively, by changing the magnetic field from 0 to 2 T. Similar large MCE values are achieved around room temperature by controlling the Curie temperature by means of hydrogen absorption. Consequently, La(FexSi1-x)13 compounds are promising as magnetic refrigerant materials working in relatively low magnetic fields.

UR - http://www.scopus.com/inward/record.url?scp=79955991635&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79955991635&partnerID=8YFLogxK

U2 - 10.1063/1.1498148

DO - 10.1063/1.1498148

M3 - Article

AN - SCOPUS:79955991635

VL - 81

SP - 1276

EP - 1278

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 7

ER -

Large magnetocaloric effect in La(Fe_xSi_1-x) ₁₃ itinerant-electron metamagnetic compounds

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint Dive into the research topics of 'Large magnetocaloric effect in La(Fe<sub>x</sub>Si<sub>1-x</sub>) <sub>13</sub> itinerant-electron metamagnetic compounds'. Together they form a unique fingerprint.

Cite this