Induced chemical pressure by O vacancies in (Tb1-xNa x)MnO3-y

  • T. S. Chan*
  • , R. S. Liu
  • , Y. H. Lien
  • , C. Y. Huang
  • , S. F. Hu
  • , J. M. Chen
  • , J. F. Lee
  • , M. Karppinen
  • , H. Yamauchi
  • *此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

摘要

The crystal structure and magnetic properties of perovskite-related (Tb1-xNax)MnO3-y compounds in the compositional range 0 ≤ x ≤ 0.3 are reported. We found that the effective moments decrease with increasing Na content, which is due to weaken the rare-earth interaction and dilute average rare-earth moment in each unit cell. Moreover, a decrease of unit cell volume with Na-doping is also observed resulting from an increase in the oxygen vacancies. The result is supported by the X-ray absorption near-edge structure (XANES) spectra and the closed-ampoule iodometry technique.

原文英語
頁(從 - 到)256-262
頁數7
期刊Chinese Journal of Physics
45
發行號2 II
出版狀態已發佈 - 2007 4月

ASJC Scopus subject areas

  • 一般物理與天文學

指紋

深入研究「Induced chemical pressure by O vacancies in (Tb1-xNa x)MnO3-y」主題。共同形成了獨特的指紋。

引用此