Magnetic properties and magnetocaloric effects in R6Co2Si3 compounds with R = Nd and Tb

Jun Shen; Yang Xian Li; Ji Rong Sun

doi:10.1016/j.jallcom.2008.09.099

Magnetic properties and magnetocaloric effects in R₆Co₂Si₃ compounds with R = Nd and Tb

Jun Shen^*, Yang Xian Li, Ji Rong Sun

^*Corresponding author for this work

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

14 Citations (Scopus)

Abstract

Magnetic properties and magnetocaloric effects of the R₆Co₂Si₃ compounds with R = Nd and Tb have been investigated by magnetization measurement. The Curie temperature and the saturation moment at 5 K for R₆Co₂Si₃ with R = Nd and Tb are determined to be 84.5 and 186.9 K, and 11.3 and 39.5 μ_B, respectively. The magnetic entropy change ΔS_m of R₆Co₂Si₃ with R = Nd and Tb, which originates from a reversible second-order magnetic transition around T_C, are obtained to be respectively 5.3 and 6.8 J/(kg K) for a magnetic field change from 0 to 5 T. A high refrigerant capacity for Tb₆Co₂Si₃ is found to be 441 J/kg for a field change of 0-5 T, which is due to a broad distribution of the ΔS_m peak.

Original language	English
Pages (from-to)	693-696
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	476
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.09.099
Publication status	Published - 12 May 2009
Externally published	Yes

Keywords

Magnetic properties
Magnetocaloric effect
RCoSi compounds

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10.1016/j.jallcom.2008.09.099

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title = "Magnetic properties and magnetocaloric effects in R6Co2Si3 compounds with R = Nd and Tb",

abstract = "Magnetic properties and magnetocaloric effects of the R6Co2Si3 compounds with R = Nd and Tb have been investigated by magnetization measurement. The Curie temperature and the saturation moment at 5 K for R6Co2Si3 with R = Nd and Tb are determined to be 84.5 and 186.9 K, and 11.3 and 39.5 μB, respectively. The magnetic entropy change ΔSm of R6Co2Si3 with R = Nd and Tb, which originates from a reversible second-order magnetic transition around TC, are obtained to be respectively 5.3 and 6.8 J/(kg K) for a magnetic field change from 0 to 5 T. A high refrigerant capacity for Tb6Co2Si3 is found to be 441 J/kg for a field change of 0-5 T, which is due to a broad distribution of the ΔSm peak.",

keywords = "Magnetic properties, Magnetocaloric effect, RCoSi compounds",

author = "Jun Shen and Li, {Yang Xian} and Sun, {Ji Rong}",

year = "2009",

month = may,

day = "12",

doi = "10.1016/j.jallcom.2008.09.099",

language = "English",

volume = "476",

pages = "693--696",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

number = "1-2",

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TY - JOUR

T1 - Magnetic properties and magnetocaloric effects in R6Co2Si3 compounds with R = Nd and Tb

AU - Shen, Jun

AU - Li, Yang Xian

AU - Sun, Ji Rong

PY - 2009/5/12

Y1 - 2009/5/12

N2 - Magnetic properties and magnetocaloric effects of the R6Co2Si3 compounds with R = Nd and Tb have been investigated by magnetization measurement. The Curie temperature and the saturation moment at 5 K for R6Co2Si3 with R = Nd and Tb are determined to be 84.5 and 186.9 K, and 11.3 and 39.5 μB, respectively. The magnetic entropy change ΔSm of R6Co2Si3 with R = Nd and Tb, which originates from a reversible second-order magnetic transition around TC, are obtained to be respectively 5.3 and 6.8 J/(kg K) for a magnetic field change from 0 to 5 T. A high refrigerant capacity for Tb6Co2Si3 is found to be 441 J/kg for a field change of 0-5 T, which is due to a broad distribution of the ΔSm peak.

AB - Magnetic properties and magnetocaloric effects of the R6Co2Si3 compounds with R = Nd and Tb have been investigated by magnetization measurement. The Curie temperature and the saturation moment at 5 K for R6Co2Si3 with R = Nd and Tb are determined to be 84.5 and 186.9 K, and 11.3 and 39.5 μB, respectively. The magnetic entropy change ΔSm of R6Co2Si3 with R = Nd and Tb, which originates from a reversible second-order magnetic transition around TC, are obtained to be respectively 5.3 and 6.8 J/(kg K) for a magnetic field change from 0 to 5 T. A high refrigerant capacity for Tb6Co2Si3 is found to be 441 J/kg for a field change of 0-5 T, which is due to a broad distribution of the ΔSm peak.

KW - Magnetic properties

KW - Magnetocaloric effect

KW - RCoSi compounds

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U2 - 10.1016/j.jallcom.2008.09.099

DO - 10.1016/j.jallcom.2008.09.099

M3 - Article

AN - SCOPUS:64549131677

SN - 0925-8388

VL - 476

SP - 693

EP - 696

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Magnetic properties and magnetocaloric effects in R₆Co₂Si₃ compounds with R = Nd and Tb

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Keywords

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