TY - JOUR
T1 - Large magnetic entropy change in Dy1-xHoxNi 2B2C (x = 0-1) superconductors
AU - Li, Lingwei
AU - Nishimura, Katsuhiko
AU - Huo, Dexuan
AU - Kadonaga, Michiaki
AU - Namiki, Takahiro
AU - Qian, Zhenghong
PY - 2011/9
Y1 - 2011/9
N2 - The magnetocaloric effect in antiferromagnetic superconductors Dy 1-xHoxNi2B2C (x = 0, 0.3, 0.5, 0.7, and 1) has been studied. The magnetic transition temperature TM as well as the temperature of the maximum magnetic entropy change (-ΔSM max) gradually shift to low temperature with increasing x, while the values of -ΔSM max remain at almost the same high value. The observed large magnetic entropy is related to a fieldinduced first-order metamagnetic transition from antiferromagnetic to ferromagnetic state. The large values of -ΔSM and high relative cooling power with tuneable TM indicate that Dy1-xHoxNi 2B2C could be used for low-temperature magnetic refrigeration.
AB - The magnetocaloric effect in antiferromagnetic superconductors Dy 1-xHoxNi2B2C (x = 0, 0.3, 0.5, 0.7, and 1) has been studied. The magnetic transition temperature TM as well as the temperature of the maximum magnetic entropy change (-ΔSM max) gradually shift to low temperature with increasing x, while the values of -ΔSM max remain at almost the same high value. The observed large magnetic entropy is related to a fieldinduced first-order metamagnetic transition from antiferromagnetic to ferromagnetic state. The large values of -ΔSM and high relative cooling power with tuneable TM indicate that Dy1-xHoxNi 2B2C could be used for low-temperature magnetic refrigeration.
UR - http://www.scopus.com/inward/record.url?scp=80052605158&partnerID=8YFLogxK
U2 - 10.1143/APEX.4.093101
DO - 10.1143/APEX.4.093101
M3 - 学術論文
AN - SCOPUS:80052605158
SN - 1882-0778
VL - 4
JO - Applied Physics Express
JF - Applied Physics Express
IS - 9
M1 - 093101
ER -