Magneto-optical properties of Eu2+-containing aluminoborosilicate glasses with ferromagnetic interactions

Hirofumi Akamatsu, Koji Fujita, Yuko Nakatsuka, Shunsuke Murai, Katsuhisa Tanaka

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Magnetic, optical, and magneto-optical properties have been examined for aluminoborosilicate glasses with high concentration of divalent europium ions. An analysis on temperature dependence of magnetic susceptibility yields positive Weiss temperatures, indicating that magnetic moments of 4f electrons of Eu 2+ interact ferromagnetically with each other in the glasses. The glasses show large Faraday rotation angles in the visible range; glass with a composition of 58.0EuO·12.0Al2O3·20.0B 2O3·10.0SiO2 (mol%) has a Verdet constant of -1.03 min/Oe cm (-300 rad/T m) at 633 nm. Wavelength dependence of the Verdet constant is interpreted in terms of Eu2+ 4f7 to 4f65d1 electronic transitions based on the Van Vleck-Hebb theory.

Original languageEnglish
Pages (from-to)1997-2000
Number of pages4
JournalOptical Materials
Volume35
Issue number11
DOIs
Publication statusPublished - Jan 1 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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