TY - JOUR
T1 - Low field giant magnetocaloric effect in RNiBC (R Er and Gd) and enhanced refrigerant capacity in its composite materials
AU - Li, Lingwei
AU - Kadonaga, Michiaki
AU - Huo, Dexuan
AU - Qian, Zhenghong
AU - Namiki, Takahiro
AU - Nishimura, Katsuhiko
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (No. 11004044), Japan Society for the Promotion of Science Postdoctoral Fellowships for Foreign Researchers (No. P10060) and Zhejiang Provincial Natural Science Foundation of China (No. Y4110581).
PY - 2012/9/17
Y1 - 2012/9/17
N2 - The magnetic properties and magnetocaloric effect (MCE) in RNiBC (R Er and Gd) compounds and its composite materials were investigated. A giant low field reversible MCE was observed in RNiBC compounds at 5 and 13 K for R Er and Gd, respectively. Under a relative low field change of 2 T, the maximum values of magnetic entropy change (-ΔS M max) reach 17.1 and 9.3 J/kg K for R Er and Gd, respectively. A table-like MCE in the temperature of 4-20 K and enhanced refrigerant capacity (RC) were found in the ErNiBC-GdNiBC composite materials. For the magnetic field changes of 1 T and 2 T, the maximum improvement of RC reach 31% (19%) and 30% (8%), in comparison with that of individual compound ErNiBC (GdNiBC), respectively. The excellent MCE properties make the RNiBC composite materials attractive for low temperature magnetic refrigeration.
AB - The magnetic properties and magnetocaloric effect (MCE) in RNiBC (R Er and Gd) compounds and its composite materials were investigated. A giant low field reversible MCE was observed in RNiBC compounds at 5 and 13 K for R Er and Gd, respectively. Under a relative low field change of 2 T, the maximum values of magnetic entropy change (-ΔS M max) reach 17.1 and 9.3 J/kg K for R Er and Gd, respectively. A table-like MCE in the temperature of 4-20 K and enhanced refrigerant capacity (RC) were found in the ErNiBC-GdNiBC composite materials. For the magnetic field changes of 1 T and 2 T, the maximum improvement of RC reach 31% (19%) and 30% (8%), in comparison with that of individual compound ErNiBC (GdNiBC), respectively. The excellent MCE properties make the RNiBC composite materials attractive for low temperature magnetic refrigeration.
UR - http://www.scopus.com/inward/record.url?scp=84866863987&partnerID=8YFLogxK
U2 - 10.1063/1.4752738
DO - 10.1063/1.4752738
M3 - 学術論文
AN - SCOPUS:84866863987
SN - 0003-6951
VL - 101
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 12
M1 - 122401
ER -