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A transition from large to small polarons in the La0.75Ca0.25MnO3 perovskite system

Abstract:: A quantitative determination of the statistical distribution of the Mn-O instantaneous bond lengths in the La0.75Ca0.25MnO3 system by Mn K-edge extended X-ray absorption fine structure (EXAFS) spectroscopy shows that the giant magneto-resistance (GMR) transition occurs at a crossover from a metallic phase with large (or intermediate) polarons to an insulating phase where small polarons coexist with large (or intermediate) polarons. In the GMR region, the two Mn polaronic domains coexist and share half of the space. © 1998 Published by Elsevier Science Ltd. All rights reserved.

Publication status:: Published

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APA Style

Lanzara, A., Saini, N., Brunelli, M., Natali, F., Bianconi, A., Radaelli, P., & Cheong, S. (1998). A transition from large to small polarons in the La0.75Ca0.25MnO3 perovskite system. 59(10-12), 2220–2223.

MLA Style

Lanzara, A, et al. “A Transition from Large to Small Polarons in the La0.75Ca0.25MnO3 Perovskite System.” vol. 59, nos. 10-12, 1998, pp. 2220–23.

Chicago Style

Lanzara, A, N Saini, M Brunelli, et al. 1998. “A Transition from Large to Small Polarons in the La0.75Ca0.25MnO3 Perovskite System.” 59 (10-12): 2220–23.
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Publisher copy:: 10.1016/S0022-3697(98)00218-2

Authors

+ Lanzara, A More by this author

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+ Saini, N More by this author

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+ Brunelli, M More by this author

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+ Natali, F More by this author

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+ Bianconi, A More by this author

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Host title:: JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume:: 59
Issue:: 10-12
Pages:: 2220-2223
Publication date:: 1998-01-01
DOI:: 10.1016/S0022-3697(98)00218-2
ISSN:: 0022-3697

Keywords:: extended X-ray absorption fine structure (EXAFS)

polarons

giant magneto-resistance
Pubs id:: pubs:142367
UUID:: uuid:34c380b7-4689-4c50-862c-5c256cca5276
Local pid:: pubs:142367
Source identifiers:: 142367
Deposit date:: 2012-12-19
ARK identifier:: ark:/29072/ora_34c380b746894c50862c5c256cca5276

Terms of use

Copyright date:: 1998

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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