Cluster spin glass and superparamagnetism in RuSr2Eu1.5Ce0.5Cu2O10-δ
作者： Rashmi Nigam , Alexey V Pan , SX Dou , None
DOI: 10.1140/EPJB/E2010-00102-X
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摘要: We investigate in detail the dc magnetization and nonlinear ac susceptibility behavior of superconducting ferromagnet RuSr2Eu1.5Ce0.5Cu2O10- δ (Ru1222) to develop a comprehensive understanding spin glass superparamagnetism this material. The structural properties system result formation magnetic (ferromagnetic) clusters different sizes, shapes properties. The clustering leads observation various features consistent with cluster states, which can coexist or stand alone, depending on temperature range considered. Experimental results measurements combination their analysis have enabled us explain distinguish these phenomena, as well propose dependent scenario behavior.
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sci-hub.se 参考文章(59)
M. S. Laad, E. Müller-Hartmann, Origin of the non-fermi liquid behavior of SrRuO3. Physical Review Letters. ,vol. 87, pp. 246402- ,(2001) , 10.1103/PHYSREVLETT.87.246402
K. H. Fischer, Spin Glasses ,(1991)
H. Berger, I. Zivkovic, V. P. S. Awana, Nonlinear magnetic response in ruthenocuprates arXiv: Strongly Correlated Electrons. ,(2008) , 10.1140/EPJB/E2008-00188-7
M.B. Maple, High Temperature Superconductivity arXiv: Superconductivity. ,(1998) , 10.1016/S0304-8853(97)00999-2
Jean-Louis Tholence, Spin-Glass and Superconducting Properties Magnetic Susceptibility of Superconductors and Other Spin Systems. pp. 503- 518 ,(1991) , 10.1007/978-1-4899-2379-0_27
A. Shengelaya, R. Khasanov, D. G. Eshchenko, I. Felner, U. Asaf, I. M. Savić, H. Keller, K. A. Müller, Coexistence of magnetism and superconductivity in Eu 1.4 Ce 0.6 RuSr 2 Cu 2 O 10 : A muon spin rotation and magnetization study Physical Review B. ,vol. 69, pp. 024517- ,(2004) , 10.1103/PHYSREVB.69.024517
Magnetic Susceptibility of Superconductors and Other Spin Systems Plenum Press. ,(1991) , 10.1007/978-1-4899-2379-0
J A Mydosh, Spin Glasses CRC Press. ,(1993) , 10.1201/9781482295191
R.N. Bhowmik, R. Ranganathan, R. Nagarajan, Coexistence of spin glass and superparamagnetism with ferrimagnetic order in polycrystalline spinel Journal of Magnetism and Magnetic Materials. ,vol. 299, pp. 327- 337 ,(2006) , 10.1016/J.JMMM.2005.04.021
O. Millo, U. Asaf, Y. Levi, I. Felner, COEXISTENCE OF MAGNETISM AND SUPERCONDUCTIVITY IN R1.4CE0.6RUSR2CU2O10-DELTA (R =EU AND GD) Physical Review B. ,vol. 55, ,(1997)