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          Institute: MPI für Physik Komplexer Systeme     Collection: Superconductivity and magnetism     Display Documents



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ID: 478515.0, MPI für Physik Komplexer Systeme / Superconductivity and magnetism
Jahn-Teller transition in La1–xSrxMnO3 in the low-doping region (0<x< ̴0.1)
Authors:Chatterji, T.; Ouladdiaf, B.; Mandal, P.; Bandyopadhyay, B.; Ghosh, B.
Language:English
Date of Publication (YYYY-MM-DD):2002-08-01
Title of Journal:Physical Review B
Journal Abbrev.:Phys. Rev. B
Volume:66
Issue / Number:5
Sequence Number of Article:054403
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:We have investigated the Jahn-Teller transition in La1-xSrxMnO3 by high-temperature powder neutron diffraction in the low- doping region (0<x&LE;0.1). The Jahn-Teller transition temperature which is about T-JT&AP;750 K for stoichiometric LaMnO3 is drastically reduced on doping with Sr, becoming T- JT&AP;475 K for x=0.10. The previously identified metrically cubic orthorhombic O phase (Pmnb) for x=0 becomes clearly (also metrically) orthorhombic for small doping x=0.05 and remains so in the doping range investigated. The Jahn-Teller transition is accompanied only by the partial reduction of the distortion of the MnO6 octahedra. From the distortion of the MnO6 octahedra we have determined the orbital mixing coefficients.
External Publication Status:published
Document Type:Article
Communicated by:Heidrun Näther
Affiliations:MPI für Physik Komplexer Systeme/Visitors Program
External Affiliations:Inst Max Von Laue Paul Langevin, BP 156, F-38042 Grenoble 9,; France; Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France; Max Planck Inst Phys Komplexer Syst, Dresden, Germany; Saha Inst Nucl Phys, Calcutta 700064, W Bengal, India
Identifiers:ISI:000177873000068
ISSN:0163-1829
URL:http://ojps.aip.org/getabs/servlet/GetabsServlet?p...
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