Charge transfer and the relaxation dynamics of the metal-insulator transition in La0.7A0.3MnO3 (A = Ca, Sr)

Ahmed Lobad; A. J. Taylor; S. A. Trugman; Chuhee Kwon

Quantum Electronics and Laser Science Conference
OSA Technical Digest (Optica Publishing Group, 1999),
paper QWC4

Charge transfer and the relaxation dynamics of the metal-insulator transition in La_0.7A_0.3MnO₃ (A = Ca, Sr)

Ahmed Lobad, A. J. Taylor, S. A. Trugman, and Chuhee Kwon

Quantum Electronics and Laser Science Conference 1999

Baltimore, Maryland United States
23–26 May 1999
ISBN: 1-55752-571-4

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Metals and Superconductors (QWC)

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A. Lobad, A. J. Taylor, S. A. Trugman, and C. Kwon, "Charge transfer and the relaxation dynamics of the metal-insulator transition in La0.7A0.3MnO3 (A = Ca, Sr)," in Quantum Electronics and Laser Science Conference, P. Bucksbaum, R. Falcone, G. Agrawal, and Y. Yamamoto, eds., OSA Technical Digest (Optica Publishing Group, 1999), paper QWC4.

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Abstract

The discovery of Colossal magneto resistance in doped manganese-oxide perovskites has lead to a resurgence of interest in this class of materials. Besides their technological value, they represent a model system to investigate the relation between electron correlation, local structure, long range order and physical properties. Recent measurements of the temperature dependence of the optical conductivity spectrum in Nd_0.3Sr_0.7MnO₃, were found to agree quite well with model calculations in which double exchange-driven hopping is coupled to dynamic Jahn-Teller polaron.¹

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