Electronic and structural transition in La0.2Sr 0.8MnO3

Applied Physics Letters

Volumn 92, Issue 12, 2008, Pages

  Bindu, R ^a   Maiti, Kalobaran ^a   Rawat, R ^b   Khalid, S ^c  

^a TATA INSTITUTE OF FUNDAMENTAL RESEARCH   (India)

^b UGC DAE CONSORTIUM FOR SCIENTIFIC RESEARCH   (India)

^c BROOKHAVEN NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRONIC PROPERTIES; EXTENDED X RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY; SPECIFIC HEAT; TEMPERATURE MEASUREMENT;

SPECIFIC HEAT MEASUREMENTS; STRUCTURAL TRANSITIONS;

PHASE TRANSITIONS;

EID: 41349106379     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.2898885     Document Type: Article

References (16)

1. J. M. D. Coey, M. Viret, and S. von Molnár, Adv. Phys. 48, 167 (1999).
2. M. B. Salamon and M. Jaime, Rev. Mod. Phys. 73, 583 (2001).
3. E. Dagotto, T. Hotta, and A. Moreo, Phys. Rep. 344, 1 (2001).
4. J. van den Brink, G. Khaliullin, and D. Khomskii, Phys. Rev. Lett. 83, 5118 (1999).
5. R. Maezono, S. Ishihara, and N. Nagaosa, Phys. Rev. B 58, 11583 (1998).
6. O. Chmaissem, B. Dabrowski, S. Kolesnik, J. Mais, J. D. Jorgensen, and S. Short, Phys. Rev. B 67, 094431 (2003).
7. J. Hemberger, A. Krimmel, T. Kurz, H.-A. Krug von Nidda, V. Yu. Ivanov, A. A. Mukhin, A. M. Balbashov, and A. Loidl, Phys. Rev. B 66, 094410 (2002).
8. R. Bindu, Eur. Phys. J. B 37, 321 (2004).
9. E. A. Stern, M. Newville, B. Ravel, Y. Yacoby, and D. Haskel, Physica B 208, 117 (1995).
10. As described in X-ray absorption: Principles, Applications, Techniques of EXAFS, SEXAFS and XANES, edited by, D. C. Konningsberger, and, R. Prins, (Wiley, New York, 1988). The Fourier transform (FT) to the R space was carried out in the k range of 3-13 Å-1 by Fourier transforming k2 (k) [ (k) is the EXAFS oscillation] by a Hanning window function. The back scattering amplitude and phases were calculated using the FEFF6.01A code for LaMn O3, and the same were used for all the temperatures. The first coordination shell fit was done in the Fourier filtered k space in the range of 0.86-1.87 Å. The overall many body reduction factor S02 was fixed to 0.82. As seen earlier, we find that the Mn K -edge EXAFS data at room temperature are best described by two short Mn-O bond lengths R1 and four long Mn-O bond lengths R2. To avoid uncertainty in the fitting procedure, we have considered average bond distances for eight Mn-SrLa bonds and six Mn-Mn bonds in higher coordination shells (0.86-3.87 Å).
11. S. I. Zabinsky, J. J. Rehr, A. Ankudinov, R. C. Albers, and M. J. Eller, Phys. Rev. B 52, 2995 (1995).
12. R. Bindu, S. K. Pandey, A. Kumar, S. Khalid, and A. V. Pimpale, J. Phys.: Condens. Matter 17, 6393 (2005).
13. J. C. Bonner and M. E. Fischer, Phys. Rev. 135, A640 (1964).
14. N. Mahapatra, K. K. Iyer, S. Rayaprol, and E. V. Sampathkumaran, Phys. Rev. B 75, 214422 (2007).
15. V. Hardy, A. Maignan, S. H́bert, and C. Martin, Phys. Rev. B 67, 024401 (2003).
16. A. Daud-Aladine, J. Rodríguez-Carvajal, L. Pinsard-Gaudart, M. T. Fernández-Díaz, and A. Revcolevschi, Phys. Rev. Lett. 89, 097205 (2002).