Study of dynamics in inhomogeneous states by temperature-modulated optical reflectivity measurement: Application to perovskite manganites

Junichi Masuzawa, Yuki Saiki, Takehito Suzuki, Takuro Katsufuji

Research output: Contribution to journalArticle

Abstract

We developed an experimental system for measuring temperature-modulated optical reflectivity with a frequency up to 20 kHz to study the dynamics of inhomogeneity in a crystal. By this system, we studied doped perovskite manganites, in which a ferromagnetic metallic phase and a (short-ranged) chargeordered phase coexist near the Curie temperature (TC). We found an appreciable frequency dependence of the temperature-modulated reflectivity around TC. This result can be explained by the dynamics of the domains in the two coexisting phases, i.e., by the relaxation time to reach a new equilibrium state of the two-phase coexistence when the temperature is modulated.

Original languageEnglish
Article number014704
Journaljournal of the physical society of japan
Volume79
Issue number1
DOIs
Publication statusPublished - 2010 Jan 1

Keywords

  • Optical spectroscopy
  • Perovskite manganite
  • Two-phase coexistence

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Study of dynamics in inhomogeneous states by temperature-modulated optical reflectivity measurement: Application to perovskite manganites'. Together they form a unique fingerprint.

  • Cite this