TY - JOUR
T1 - Magnetocaloric effect in metamagnetic borocarbide DyNi 2 - XAxB2C (A = Co and Cr) compounds
AU - Li, Lingwei
AU - Fan, Haibo
AU - Matsui, Sho
AU - Huo, Dexuan
AU - Nishimura, Katsuhiko
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (Grant Nos. 11004044 and 50871036 ), the Japan Society for the Promotion of Science Postdoctoral Fellowships for Foreign Researchers (No. P10060 ), and the Zhejiang Provincial Natural Science Foundation of China (Grant No. Y4110581 ).
PY - 2012/7/15
Y1 - 2012/7/15
N2 - The magnetic properties and magnetocaloric effect (MCE) in DyNi 2 - xAxB2C (A = Co and Cr, x = 0.1, and 0.2) compounds have been studied. Substitution of Co or Cr for Ni lowered the magnetic transition temperature TM, and reduced the magnetic hysteresis of DyNi2B2C. An inverse MCE was observed, which is attributed to the nature of antiferromagnetic state under low magnetic field and at low temperatures for the present DyNi2 - xAxB 2C compounds. A normal large MCE was observed under higher magnetic field changes, which is related to a field-induced first order meatmagnetic transition from antiferromagnetic to ferromagnetic state. The values of -ΔSMmax are 16.3, 10.2 16.1, and 13.7 J kg-1 K-1 with a magnetic field change of 5 T for x = 0.1 (Co), 0.2 (Co), 0.1 (Cr), and 0.2 (Cr) in DyNi2 - xAxB2C system, respectively. The magnetic transition, the origin of large MCE as well as its potential application in DyNi2 - xAxB2C system were discussed.
AB - The magnetic properties and magnetocaloric effect (MCE) in DyNi 2 - xAxB2C (A = Co and Cr, x = 0.1, and 0.2) compounds have been studied. Substitution of Co or Cr for Ni lowered the magnetic transition temperature TM, and reduced the magnetic hysteresis of DyNi2B2C. An inverse MCE was observed, which is attributed to the nature of antiferromagnetic state under low magnetic field and at low temperatures for the present DyNi2 - xAxB 2C compounds. A normal large MCE was observed under higher magnetic field changes, which is related to a field-induced first order meatmagnetic transition from antiferromagnetic to ferromagnetic state. The values of -ΔSMmax are 16.3, 10.2 16.1, and 13.7 J kg-1 K-1 with a magnetic field change of 5 T for x = 0.1 (Co), 0.2 (Co), 0.1 (Cr), and 0.2 (Cr) in DyNi2 - xAxB2C system, respectively. The magnetic transition, the origin of large MCE as well as its potential application in DyNi2 - xAxB2C system were discussed.
KW - Antiferromagnetic superconductor
KW - Magnetocaloric effect
UR - http://www.scopus.com/inward/record.url?scp=84859479389&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2012.03.061
DO - 10.1016/j.jallcom.2012.03.061
M3 - 学術論文
AN - SCOPUS:84859479389
SN - 0925-8388
VL - 529
SP - 25
EP - 28
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -