Magnetic properties of the Gd5Co50Al45 alloy
作者： K.B. Paul
DOI: 10.1016/S0304-8853(03)00144-6
关键词: Paramagnetism 、 Phase transition 、 Relaxation (NMR) 、 Magnetization 、 Phase (matter) 、 Condensed matter physics 、 Critical exponent 、 Thermoremanent magnetization 、 Magnetic moment 、 Materials science 、 Electronic, Optical and Magnetic Materials
摘要: Abstract The random-exchange spin-glass-like alloy Gd5Co50Al45 is prepared and characterized using DC magnetization, relaxation, thermoremanent magnetization AC magnetic measurements. freezing of the moments below T f ∼36 K studied employing dynamic scaling analysis. results analysis show that undergoes a paramagnetic – cluster-glass transition upon cooling. estimated values critical exponents disordered phase are: zν=9.4, shortest relaxation time system τ 0 =10 −12 s , order parameter exponent β=0.65. temperature g =35.5 .
harvard.edu
elsevier.com
sci-hub.se 参考文章(26)
A. Mauger, J. Ferré, M. Ayadi, P. Nordblad, Dynamics of the spin-glass freezing in Cd0.6Mn0.4Te. Physical Review B. ,vol. 37, pp. 9022- 9028 ,(1988) , 10.1103/PHYSREVB.37.9022
J. G. Booth, R. M. Mankikar, R. Honeybourne, A. S. Saleh, Structural and magnetic properties of Co(AlV) alloys Journal of Applied Physics. ,vol. 67, pp. 5271- 5273 ,(1990) , 10.1063/1.344634
P. Granberg, L. Lundgren, P. Nordblad, Non-equilibrium relaxation in a Cu(Mn) spin glass Journal of Magnetism and Magnetic Materials. ,vol. 92, pp. 228- 232 ,(1990) , 10.1016/0304-8853(90)90636-5
P Svedlindh, P Nordblad, M.F Hansen, P Jönsson, Spin-glass-like transition in a highly concentrated Fe–C nanoparticle system Journal of Magnetism and Magnetic Materials. ,vol. 226, pp. 1315- 1316 ,(2001) , 10.1016/S0304-8853(00)00838-6
A. Labarta, X. Batlle, B. Martínez, X. Obradors, Magnetic study of spin freezing in the spin glass BaCo6Ti6O19: Static and dynamic analysis. Physical Review B. ,vol. 46, pp. 8994- 9001 ,(1992) , 10.1103/PHYSREVB.46.8994
K. Eftimova, R. Laiho, E. Lähderanta, P. Nordblad, Low-temperature dynamic magnetic properties of PdxCo50Al50−x alloys Journal of Magnetism and Magnetic Materials. ,vol. 166, pp. 179- 185 ,(1997) , 10.1016/S0304-8853(96)00440-4
K Eftimova, E Lahderanta, R Laiho, Static and dynamic critical behaviour of the freezing transition in the random-exchange Ho5Co50Al45alloy Journal of Physics: Condensed Matter. ,vol. 11, pp. 6935- 6944 ,(1999) , 10.1088/0953-8984/11/36/310
Daniel S. Fisher, David A. Huse, Nonequilibrium dynamics of spin glasses. Physical Review B. ,vol. 38, pp. 373- 385 ,(1988) , 10.1103/PHYSREVB.38.373
E. Lähderanta, K. Eftimova, R. Laiho, H. Al Kanani, J.G. Booth, On the spin-glass state of some CoAlT alloys Journal of Magnetism and Magnetic Materials. ,vol. 130, pp. 23- 28 ,(1994) , 10.1016/0304-8853(94)90653-X
K. Binder, A. P. Young, Spin glasses: Experimental facts, theoretical concepts, and open questions Reviews of Modern Physics. ,vol. 58, pp. 801- 976 ,(1986) , 10.1103/REVMODPHYS.58.801