Journal article
Emission Mössbauer studies of the magnetoresistive compound, La 0.7Sr 0.3MnO 3
Solid state communications, v 138(5), pp 224-228
2006
Abstract
The magnetic behavior of the Sr
0.3 manganite is studied using a local microprobe,
57Co. In contrast with Ca substituted manganites, a much larger fraction of the material exhibits short-range order with superparamagnetic-like behavior even at 80
K. The differences in behavior are attributed to the large mismatch between the ionic radii of La
+3 and the divalent substituent Sr
+2, which introduces anharmonicity in local vibrations. In common with all other compounds exhibiting negative bulk magnetoresistivity, the Sr
0.3 compound also exhibits very marked softening of lattice as one approaches
T
c from below. Application of an external magnetic field results in coalescing of nanosized magnetic clusters to form larger ones with better alignment of spins.
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Details
- Title
- Emission Mössbauer studies of the magnetoresistive compound, La 0.7Sr 0.3MnO 3
- Creators
- Amar Nath - Drexel UniversityVladimir Chechersky - Drexel UniversityK.V. Ramanujachary - Rowan UniversityRobert Butterick - Rowan UniversitySam Lofland - Department of Physics and Astronomy, Rowan University, Glasboro, NJ 08028, USASteve Preite - Rowan University
- Publication Details
- Solid state communications, v 138(5), pp 224-228
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:000237763000002
- Scopus ID
- 2-s2.0-33646081535
- Other Identifier
- 991019168826104721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Physics, Condensed Matter