Nonequilibrium magnetic properties of single-crystalline La0.7Ca0.3CoO3

Kundu, Asish K. ; Nordblad, P. ; Rao, C. N. R. (2005) Nonequilibrium magnetic properties of single-crystalline La0.7Ca0.3CoO3 Physical Review B: Condensed Matter and Materials Physics, 72 (14). 144423_1-144423_6. ISSN 1098-0121

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Magnetic and electric properties of a single crystal of La0.7Ca0.3CoO3 have been experimentally studied. The system attains a ferromagnetic spontaneous moment below 170 K and exhibits a reentrant spin-glass phase below 100 K. In the ordered and the reentrant phases, the low-field magnetic properties are strongly direction dependent, showing considerably higher magnetization values perpendicular than parallel to the c axis. Magnetic relaxation experiments show that both the ferromagnetic and the reentrant spin-glass phases are nonequilibrium states, where the system exhibits magnetic aging characteristic of spin glasses and disordered and frustrated ferromagnets.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:39923
Deposited On:20 May 2011 07:15
Last Modified:17 May 2016 22:12

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