Experiment investigation of La(1-x)SrxMnO3 by high-resolution X-ray emission and spin-polarized X-ray absorption spectroscopy

Spectrochim Acta A Mol Biomol Spectrosc. 2008 Jul;70(2):462-5. doi: 10.1016/j.saa.2007.11.037. Epub 2008 Jan 17.

Abstract

Big changes in resistivity along with the changing of local structure in some oxide systems, such as high-temperature superconductors and colossal magnetoresistance system, strongly suggest the need of a systematic investigation of their local electronic and atomic structures. In this work we present the high-resolution X-ray emission spectra and the spin-polarized X-ray absorption near-edge spectroscopy (SPXANES) data at the Mn K-edge in the La(1-x)Sr(x)MnO(3). This experiment is based on a high-resolution large-acceptance crystal analyzer based on Si (111) and optimized for X-ray fluorescence spectroscopy. With a spherical bent crystal monochromator, a Mn Kbeta emission spectra with high resolution was obtained with a short collection time and SPXANES spectra of La(1-x)Sr(x)MnO(3) at room temperature were also measured at high temperature.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Lanthanum / chemistry*
  • Manganese Compounds / chemistry*
  • Oxides / chemistry*
  • Spectrometry, X-Ray Emission / methods*
  • Strontium / chemistry*
  • Temperature
  • X-Rays

Substances

  • Manganese Compounds
  • Oxides
  • Lanthanum
  • Strontium