Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-27T02:41:41.040Z Has data issue: false hasContentIssue false
  • English
  • Français

Structural Distortions in the Paramagnetic Insulating Phase of La0.7Ca0.3MnO3

Published online by Cambridge University Press:  21 March 2011

C.S. Nelson ,
Y.J. Kim ,
J.P. Hill ,
Doon Gibbs ,
V. Kiryukhin ,
T.Y. Koo  and
S-W. Cheong
C.S. Nelson
Affiliation:
Department of Physics, Brookhaven National Laboratory, Upton, NY 11973-5000
Y.J. Kim
Affiliation:
Department of Physics, Brookhaven National Laboratory, Upton, NY 11973-5000
J.P. Hill
Affiliation:
Department of Physics, Brookhaven National Laboratory, Upton, NY 11973-5000
Doon Gibbs
Affiliation:
Department of Physics, Brookhaven National Laboratory, Upton, NY 11973-5000
V. Kiryukhin
Affiliation:
Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854
T.Y. Koo
Affiliation:
Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854 Bell Laboratories, Lucent Technologies, Murray Hill, NJ 07974
S-W. Cheong
Affiliation:
Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854 Bell Laboratories, Lucent Technologies, Murray Hill, NJ 07974
Get access

Abstract

We report x-ray scattering studies of polarons and tilt ordering in the high-temperature, paramagnetic insulating phase of La0.7Ca0.3MnO3. The temperature dependence of scattering due to individual and correlated polarons was measured, and the latter was found to disappear at ∼400 K. The scattering due to tilt ordering, which was observed by tuning the incident photon energy near the La L1 edge, was also measured as a function of temperature. The destruction of tilt ordering at ∼690 K is believed to be associated with the orthorhombic-rhombohedral structural transition.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 678: Symposia EE – Applications of Synchrotron Radiation Techniques…IV , 2001 , EE7.3.1
Copyright
Copyright © Materials Research Society 2001

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. For a review, see Colossal Magnetoresistive Oxides, edited by Tokura, Y. (Gordon & Breach, London, 1999).Google Scholar
2. Zener, C., Phys. Rev. 82, 403 (1951); P.W. Anderson and H. Hasegawa, Phys. Rev. 100, 675 (1955); P.G. deGennes, Phys. Rev. 118, 141 (1960).Google Scholar
3. Roder, H., Zang, J., and Bishop, A.R., Phys. Rev. Lett. 76, 1356 (1996).Google Scholar
4. Millis, A.J., Shraiman, B.I., and Mueller, R., Phys. Rev. Lett. 77, 175 (1996).Google Scholar
5. Dagotto, E., Hotta, T., and Moreo, A., cond-mat/0012117.Google Scholar
6. Billinge, S.J.L., DiFrancesco, R.G., Kwei, G.H., Neumeier, J.J., and Thompson, J.D., Phys. Rev. Lett. 77, 715 (1996).Google Scholar
7. Shengalaya, A., Zhao, G., Keller, H., and Muller, K.A., Phys. Rev. Lett. 77, 5296 (1996).Google Scholar
8. Hundley, M.F. and Neumeier, J.J., Phys. Rev. B 55, 11511 (1997).Google Scholar
9. Lanzara, A., Saini, N.L., Brunelli, M., Natali, F., Bianconi, A., Radaelli, P.G., Cheong, S-W., Phys. Rev. Lett. 81, 878 (1998).Google Scholar
10. Kim, K.H., Uehara, M., and Cheong, S-W., Phys. Rev. B 62, R11945 (2000).Google Scholar
11. Zhao, G.M., Wang, Y.S., Kang, D.J., Prellier, W., Rajeswari, M., Keller, H., Venkatesan, T., Chu, C.W., and Greene, R.L., Phys. Rev. B 62, R11949 (2000).Google Scholar
12. Dai, P., Fernandez-Baca, J.A., Wakabayashi, N., Plummer, E.W., Tomioka, Y., and Tokura, Y., Phys. Rev. Lett. 85, 2553 (2000).Google Scholar
13. Adams, C.P., Lynn, J.W., Mukovskii, Y.M., Arsenov, A.A., and Shulyatev, D.A., Phys. Rev. Lett. 85, 3954 (2000).Google Scholar
14. Nelson, C.S., Zimmermann, M. v., Kim, Y.J., Hill, J.P., Gibbs, Doon, Kiryukhin, V., Koo, T.Y., Cheong, S-W., Casa, D., Keimer, B., Tomioka, Y., Tokura, Y., Gog, T., and Venkataraman, C.T., cond-mat/0011502.Google Scholar
15. Zuo, J.M. and Tao, J., Phys. Rev. B 63, 060407(R) (2001).Google Scholar
16. Chun, S.H., Salamon, M.B., Tomioka, Y., and Tokura, Y., Phys. Rev. B 61, R9225 (2000).Google Scholar
17. Goldschmidt, V.M., Naturwissenschaften 14, 477 (1926).Google Scholar
18. Goodenough, J.B., Phys. Rev. 100, 555 (1955).Google Scholar
19. Zimmermann, M. v., Nelson, C.S., Kim, Y.J., Hill, J.P., Gibbs, Doon, Nakao, H., Wakabayashi, Y., Murakami, Y., Tomioka, Y., Tokura, Y., Kao, C-C., Casa, D., Venkataraman, C., and Gog, T., cond-mat/0007231.Google Scholar
20. Schiffer, P., Ramirez, A.P., Bao, W., and Cheong, S-W., Phys. Rev. Lett. 75, 3336 (1995).Google Scholar
21. Uehara, M., Kim, K.H., and Cheong, S-W., unpublished.Google Scholar