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  Microscopic State of Low Doped Manganites La1-xSrxMnO3 Probed by ESR

Ivanshin, V. A., Eremin, M. V., Deisenhofer, J., von Nidda, H. A. K., Loidl, A., & Eremina, R. M. (2002). Microscopic State of Low Doped Manganites La1-xSrxMnO3 Probed by ESR. Journal of Superconductivity, 15(6), 523-525. doi:10.1023/A:1021226603973.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-30C8-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0017-FED7-6
Genre: Journal Article

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 Creators:
Ivanshin, V. A.1, Author              
Eremin, M. V., Author
Deisenhofer, J., Author
von Nidda, H. A. K., Author
Loidl, A., Author
Eremina, R. M., Author
Affiliations:
1Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              

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Free keywords: ESR; manganites; spin-orbit coupling; polarons
 Abstract: The electron spin resonance (ESR) measurements were performed in single crystals of La1-xSrxMnO3 (0.05 less than or equal to x less than or equal to 0.125) in order to study the interplay of crystal field, Dzyaloshinsky-Moriya interaction, Jahn-Teller (JT) effect, and orbital order. The angular dependence of the ESR linewidth of an untwinned La0.95Sr0.05MnO3 single crystal has been analyzed in the high-temperature approximation, which takes into account the microscopic geometry of the four nonequivalent Mn positions in the orthorhombic unit cell. A strong mixing of the \3z(2) - r(2)) and \x(2) - y(2)) states for the real orbital configuration was found. Magnetic inhomogeneities observed in the ESR spectra across the composition range 0.075 less than or equal to x less than or equal to 0.125 can be attributed to the presence of ferromagnetic clusters (magnetic spin polarons) in the paramagnetic state. New polaronic models are proposed.

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Language(s): eng - English
 Dates: 2002-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 17436
ISI: 000179495900005
DOI: 10.1023/A:1021226603973
 Degree: -

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Title: Journal of Superconductivity
  Alternative Title : J. Supercond.
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 15 (6) Sequence Number: - Start / End Page: 523 - 525 Identifier: ISSN: 0896-1107