Evolution of Magnetic Polarons and Spin-Carrier Interactions through the Metal-Insulator Transition in [Formula presented]

H. Rho, C. S. Snow, S. L. Cooper, Z. Fisk, A. Comment, J. Ph Ansermet

Research output: Contribution to journalArticle

Abstract

Raman scattering studies as functions of temperature, magnetic field, and Gd substitution are used to investigate the evolution of magnetic polarons and spin-carrier interactions through the metal-insulator transition in [Formula presented]. These studies reveal a spin-fluctuation-dominated paramagnetic (PM) regime for [Formula presented], and a coexistence regime for [Formula presented] in which spin polarons develop and coexist with remnants of the PM phase. They further show a strong connection between spin cluster formation and the dramatic field effects observed in these materials.

Original languageEnglish (US)
Number of pages1
JournalPhysical review letters
Volume88
Issue number12
DOIs
StatePublished - 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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