authors |
De, K; Das, S; Roy, A; Dhak, P; Willinger, M; Amaral, JS; Amaral, VS; Giri, S; Majumder, S; Silva, CJR; Gomes, MJM; Mahapatra, PK |
nationality |
International |
journal |
JOURNAL OF APPLIED PHYSICS |
keywords |
SPIN-GLASSES; LA1-XSRXMNO3; TRANSITION; MAGNETORESISTANCE; ANISOTROPY; TRANSPORT; MAGNETISM; BEHAVIOR; DIAGRAM; OXIDES |
abstract |
Unusual high temperature ferromagentism is reported for La0.95Sr0.05MnO3 + delta with Curie temperatures (T-C1 and T-C2) T-C1 at 290K and T-C2 similar to 150 K. Weak antiferromagnetism (AFM) is thought to give low moment, low temperature irreversibility, and non-saturation up to 10 T at 5 K. A short-range ferromagnetism is predicted from well-defined hysteresis at 5K and field-cooled (FC) magnetization curves. Strong irreversibility between zero field-cooled (ZFC) and FC at 5 T is due to "hard" spins, not from ferromagnetic clusters. Field-dependent peak shift of spin freezing temperature in ZFC, memory effect, magnetic relaxation shows cluster glass like transition in the system. A metal-insulator transition at 115 K also implies a completion of percolation of short range ferromagnetic clusters, giving an onset of metallic state at 115 K. A complete magnetic phase diagram is presented showing its temperature dependent rich magnetic behavior. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4763460] |
publisher |
AMER INST PHYSICS |
issn |
0021-8979 |
year published |
2012 |
volume |
112 |
issue |
10 |
digital object identifier (doi) |
10.1063/1.4763460 |
web of science category |
Physics, Applied |
subject category |
Physics |
unique article identifier |
WOS:000311969800082
|
ciceco authors
impact metrics
journal analysis (jcr 2019):
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journal impact factor |
2.286 |
5 year journal impact factor |
2.138 |
category normalized journal impact factor percentile |
54.87 |
dimensions (citation analysis):
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altmetrics (social interaction):
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