Bindu, R. ; Maiti, Kalobaran ; Rawat, R. ; Khalid, S. (2008) Electronic and structural transition in La0.2Sr0.8MnO3 Applied Physics Letters, 92 (12). 121906_1-121906_3. ISSN 0003-6951
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Official URL: http://apl.aip.org/resource/1/applab/v92/i12/p1219...
Related URL: http://dx.doi.org/10.1063/1.2898885
Abstract
We investigate the interplay between the electronic and structural transitions in La0.2Sr0.8MnO3. The transport and specific heat measurements exhibit unusual evolution and the signature of a first order phase transition at around 265 K. Mn K-edge extended X-ray absorption fine structure (EXAFS) results reveal distortion in the MnO6 octahedrons, even in the cubic phase, and a remarkable evolution of the distortion across the phase transition. These results manifest the importance of fluctuations in Mn 3d orbital occupancy on their electronic properties, which may help in understanding the orbital and spin ordering proposed in these systems.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Band Structure; Colossal Magnetoresistance; EXAFS; Lanthanum Compounds; Paramagnetic-Antiferromagnetic Transitions; Solid-State Phase Transformations; Specific Heat; Strontium Compounds |
| ID Code: | 62245 |
| Deposited On: | 20 Sep 2011 09:45 |
| Last Modified: | 18 May 2016 11:37 |
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