Magnetocaloric effect in Mn122-Cl benzoate

被引:30
作者
Torres, F
Bohigas, X
Hernández, JM
Tejada, J
机构
[1] Univ Barcelona, Dept Fis Fonamental, E-08028 Barcelona, Spain
[2] Univ Politecn Catalunya, Dept Fis & Engn Nucl, E-08028 Barcelona, Spain
关键词
D O I
10.1088/0953-8984/15/4/102
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The magnetocaloric effect in high spin Mn-12 2Cl-benzoate clusters was studied. We observed a high entropy change around the blocking temperature of the magnetization. Theoretical simulations indicate the shift of the entropy change with the sweeping rate of the magnetic field.
引用
收藏
页码:L119 / L123
页数:5
相关论文
共 13 条
[1]   Magnetic and calorimetric measurements on the magnetocaloric effect in La0.6Ca0.4MnO3 [J].
Bohigas, X ;
Tejada, J ;
Marínez-Sarrión, ML ;
Tripp, S ;
Black, R .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 208 (1-2) :85-92
[2]   Tunable magnetocaloric effect in ceramic perovskites [J].
Bohigas, X ;
Tejada, J ;
del Barco, E ;
Zhang, XX ;
Sales, M .
APPLIED PHYSICS LETTERS, 1998, 73 (03) :390-392
[3]   Crystal defects and spin tunneling in single crystals of Mn12 clusters -: art. no. 161407 [J].
Hernandez, JM ;
Torres, F ;
Tejada, J ;
Molins, E .
PHYSICAL REVIEW B, 2002, 66 (16) :1-4
[4]   MAGNETIC REFRIGERANTS FOR THE 4.2-K-20-K REGION - GARNETS OR PEROVSKITES [J].
KUZMIN, MD ;
TISHIN, AM .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1991, 24 (11) :2039-2044
[5]   Resonant magnetic tunnelling in Mn12 2-Cl benzoate [J].
Luis, F ;
Hernández, JM ;
Bartolomé, J ;
Tejada, J .
NANOTECHNOLOGY, 1999, 10 (01) :86-89
[6]   ENHANCED MAGNETOCALORIC EFFECT IN GD3GA5-XFEXO12 [J].
MCMICHAEL, RD ;
RITTER, JJ ;
SHULL, RD .
JOURNAL OF APPLIED PHYSICS, 1993, 73 (10) :6946-6948
[7]  
NORTE BJ, 1998, ADV CRYOGEN ENG, V43, P1737
[8]   Magnetocaloric effect and magnetic refrigeration [J].
Pecharsky, VK ;
Gschneidner, KA .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 200 (1-3) :44-56
[9]   Thermodynamics of the magnetocaloric effect [J].
Pecharsky, VK ;
Gschneider, KA ;
Pecharsky, AO ;
Tishin, AM .
PHYSICAL REVIEW B, 2001, 64 (14) :1444061-14440613
[10]   Some common misconceptions concerning magnetic refrigerant materials [J].
Pecharsky, VK ;
Gschneidner, KA .
JOURNAL OF APPLIED PHYSICS, 2001, 90 (09) :4614-4622