Inhomogeneous magnetic clusters above the Curie point in Nd0.5CaxSr0.5-XMnO3 (x=0.1 and 0.3)
The presence of inhomogeneous magnetic clusters in Nd0.5CaxSr0.5-xMnO3 (x = 0.1 and 0.3) system has been investigated by dc magnetic susceptibility, magnetoresistance (MR) and ESR studies. The nature of magnetic transitions is found to be of second order in x = 0.1 and is of first order in case of x...
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| Veröffentlicht in: | Solid state sciences 2008-11, Vol.10 (11), p.1620-1624 |
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| container_title | Solid state sciences |
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| creator | SAVITHA PILLAI, S SANTHOSH, P. N |
| description | The presence of inhomogeneous magnetic clusters in Nd0.5CaxSr0.5-xMnO3 (x = 0.1 and 0.3) system has been investigated by dc magnetic susceptibility, magnetoresistance (MR) and ESR studies. The nature of magnetic transitions is found to be of second order in x = 0.1 and is of first order in case of x = 0.3 composition. The ferromagnetic clusters in the paramagnetic region show the signature of Griffiths-like phase for the x = 0.1 sample. The onset of predominant charge-ordered antiferromagnetic correlations above TC results in the deviation from Curie-Weiss law as an upturn in the magnetic susceptibility of x = 0.3 sample. The competition between the FM/AFM interactions arising from A-site cation disorder leads to quenched disorder in this system. |
| doi_str_mv | 10.1016/j.solidstatesciences.2008.03.024 |
| format | Article |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.) Magnetic properties and materials Magnetically ordered materials: other intrinsic properties Other ferromagnetic metals and alloys Physics Studies of specific magnetic materials |
| title | Inhomogeneous magnetic clusters above the Curie point in Nd0.5CaxSr0.5-XMnO3 (x=0.1 and 0.3) |
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