Effect of R substitution on magnetic properties and magnetocaloric effects of La1-xRxFe11.5Si1.5 compounds with R Ce, Pr and Nd

Shen Jun; Li Yang-Xian; Sun Ji-Rong; Shen Bao-Gen

doi:10.1088/1674-1056/18/5/055

Effect of R substitution on magnetic properties and magnetocaloric effects of La_1-xR_xFe_11.5Si_1.5 compounds with R Ce, Pr and Nd

Shen Jun^*
, Li Yang-Xian
, Sun Ji-Rong
, Shen Bao-Gen

^*Corresponding author for this work

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

47 Citations (Scopus)

Abstract

Magnetic properties and magnetocaloric effects of La_1-xR _xFe_11.5Si_1.5 (R Pr, (0 ≤ x ≤ 0.5); R Ce and Nd, (0 ≤ x ≤ 0.3)) compounds are investigated. Partially replacing La with R Ce, Pr and Nd in La_1-xR_xFe_11.5Si _1.5 leads to a reduction in Curie temperature due to the lattice contraction. The substitution of R for La causes an enhancement in field-induced itinerant electron metamagnetic transition, which leads to a remarkable increase in magnetic entropy change ΔS_m and also in hysteresis loss. However, a high effective refrigerant capacity RC_eff is still maintained in La_1-xR_xFe_11.5Si_1.5. In the present samples, a large ΔS_m and a high RC_eff have been achieved simultaneously.

Original language	English
Pages (from-to)	2058-2062
Number of pages	5
Journal	Chinese Physics B
Volume	18
Issue number	5
DOIs	https://doi.org/10.1088/1674-1056/18/5/055
Publication status	Published - 2009
Externally published	Yes

Keywords

Hysteresis loss
Magnetocaloric effect
Refrigerant capacity

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10.1088/1674-1056/18/5/055

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title = "Effect of R substitution on magnetic properties and magnetocaloric effects of La1-xRxFe11.5Si1.5 compounds with R Ce, Pr and Nd",

abstract = "Magnetic properties and magnetocaloric effects of La1-xR xFe11.5Si1.5 (R Pr, (0 ≤ x ≤ 0.5); R Ce and Nd, (0 ≤ x ≤ 0.3)) compounds are investigated. Partially replacing La with R Ce, Pr and Nd in La1-xRxFe11.5Si 1.5 leads to a reduction in Curie temperature due to the lattice contraction. The substitution of R for La causes an enhancement in field-induced itinerant electron metamagnetic transition, which leads to a remarkable increase in magnetic entropy change ΔSm and also in hysteresis loss. However, a high effective refrigerant capacity RCeff is still maintained in La1-xRxFe11.5Si1.5. In the present samples, a large ΔSm and a high RCeff have been achieved simultaneously.",

keywords = "Hysteresis loss, Magnetocaloric effect, Refrigerant capacity",

author = "Shen Jun and Li Yang-Xian and Sun Ji-Rong and Shen Bao-Gen",

year = "2009",

doi = "10.1088/1674-1056/18/5/055",

language = "English",

volume = "18",

pages = "2058--2062",

journal = "Chinese Physics B",

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TY - JOUR

T1 - Effect of R substitution on magnetic properties and magnetocaloric effects of La1-xRxFe11.5Si1.5 compounds with R Ce, Pr and Nd

AU - Jun, Shen

AU - Yang-Xian, Li

AU - Ji-Rong, Sun

AU - Bao-Gen, Shen

PY - 2009

Y1 - 2009

N2 - Magnetic properties and magnetocaloric effects of La1-xR xFe11.5Si1.5 (R Pr, (0 ≤ x ≤ 0.5); R Ce and Nd, (0 ≤ x ≤ 0.3)) compounds are investigated. Partially replacing La with R Ce, Pr and Nd in La1-xRxFe11.5Si 1.5 leads to a reduction in Curie temperature due to the lattice contraction. The substitution of R for La causes an enhancement in field-induced itinerant electron metamagnetic transition, which leads to a remarkable increase in magnetic entropy change ΔSm and also in hysteresis loss. However, a high effective refrigerant capacity RCeff is still maintained in La1-xRxFe11.5Si1.5. In the present samples, a large ΔSm and a high RCeff have been achieved simultaneously.

AB - Magnetic properties and magnetocaloric effects of La1-xR xFe11.5Si1.5 (R Pr, (0 ≤ x ≤ 0.5); R Ce and Nd, (0 ≤ x ≤ 0.3)) compounds are investigated. Partially replacing La with R Ce, Pr and Nd in La1-xRxFe11.5Si 1.5 leads to a reduction in Curie temperature due to the lattice contraction. The substitution of R for La causes an enhancement in field-induced itinerant electron metamagnetic transition, which leads to a remarkable increase in magnetic entropy change ΔSm and also in hysteresis loss. However, a high effective refrigerant capacity RCeff is still maintained in La1-xRxFe11.5Si1.5. In the present samples, a large ΔSm and a high RCeff have been achieved simultaneously.

KW - Hysteresis loss

KW - Magnetocaloric effect

KW - Refrigerant capacity

UR - https://www.scopus.com/pages/publications/67650742591

U2 - 10.1088/1674-1056/18/5/055

DO - 10.1088/1674-1056/18/5/055

M3 - Article

AN - SCOPUS:67650742591

SN - 1674-1056

VL - 18

SP - 2058

EP - 2062

JO - Chinese Physics B

JF - Chinese Physics B

IS - 5

ER -

Effect of R substitution on magnetic properties and magnetocaloric effects of La_1-xR_xFe_11.5Si_1.5 compounds with R Ce, Pr and Nd

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Keywords

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