Hydrostatic-pressure Effects in Gd2O2S:Eu3+.

• Chi Yuanbin

  National Laboratory of Superhard Materials, Jilin University

• Liu Shenkin

  Changchun Institute of Physics, Academia Sinica

• Wang Lizhong

  National Laboratory of Superhard Materials, Jilin University

• Zou Guangtian

  National Laboratory of Superhard Materials, Jilin University

• Wang Qiuping

  Physics Department of Harbin Normal University

Bibliographic Information

Other Title

• Hydrostatic-pressure Effects in Gd2O2S

Abstract

The emission spectra of the Eu³⁺ ion in Gd₂O₂S were measured in the pressure range of 0∼15 GPa. The experiments show that the crystal-field splittings of the ⁷F_2-5 and ⁵D₂ increase obviously with pressurization. The crystal-field parameters B^k_q and the crystal-field strength parameter S were determined at different pressures. The Slater parameter F₂ and the spin-orbit coupling parameter ζ reduce with increasing pressure. The symmetry-restricted covalency mechanism acts a main part in the reductions of F₂ and ζ.

Journal

• The Review of High Pressure Science and Technology

  The Review of High Pressure Science and Technology 7 754-756, 1998

  The Japan Society of High Pressure Science and Technology

Keywords

• Gd<SUB>2</SUB>O<SUB>2</SUB>S:Eu<SUP>3+</SUP>
• hydrostatic pressure
• energy level
• crystal-field parameter
• free-ion parameter

Details

• CRID: 1390001204380661248
• NII Article ID: 10002691737
• NII Book ID: AN10452913
• DOI: 10.4131/jshpreview.7.754
• ISSN: 13481940
• ISSN: 0917639X
• NDL BIB ID: 4494045
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4494045
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed