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Magnetic and transport relaxation property of La0.85Sr0.15CoO3 single crystals

Manna, Kaustuv and Samal, D and Elizabeth, Suja and Kumar, Anil PS (2013) Magnetic and transport relaxation property of La0.85Sr0.15CoO3 single crystals. In: Proceedings of the 57th DAE Solid State Physics Symposium 2012, 3–7 December 2012, Indian Institute of Technology, Bombay, Mumbai, India, pp. 1142-1143.

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Official URL: http://dx.doi.org/10.1063/1.4791451


Here, we present a comprehensive investigation of the dc magnetization and magnetotransport studies on La0.85Sr0.15CoO3 single crystals grown by the optical float zone method. The spin freezing temperature in the ac susceptibility study shifts to lower value at higher dc field and this is well described by the de Almeida-Thouless line which is the characteristic of SG behavior. The Magnetotransport study shows that the sample exhibits a huge negative MR of similar to 70% at 10 K which monotonically decreases with the increase in temperature. Besides, the magnetization and the resistivity relaxation give strong indication that the MR scales with sample's magnetization. In essence, all the present experimental findings evidence the SG behavior of La0.85Sr0.15CoO3 single crystals.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to American Institute of Physics.
Keywords: Spin-Glass; Magnetic Oxide; Relaxation
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Depositing User: Francis Jayakanth
Date Deposited: 23 Jun 2013 09:40
Last Modified: 23 Jun 2013 09:40
URI: http://eprints.iisc.ac.in/id/eprint/46770

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