139La NMR evidence for sensitivity of local structure to magnetic field in La0.5Ca0.5MnO3

Y. Yoshinari, P. C. Hammel, J. D. Thompson, S. W. Cheong

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

We report 139La nuclear-magnetic-resonance measurements on La0.5Ca0.5MnO3. Two resonance peaks observed in zero applied field are identified as ferromagnetic (FM) resonances arising from FM domains with eight nearest Mn moments almost fully polarized. The two La sites are distinguished by experiencing different covalent configurations with respect to the nearest Mn ions, likely caused by the charge/orbital ordering. The two sites collapse into one in the presence of a strong magnetic field, indicating the close relationship between magnetism and the lattice deformation.

Original languageEnglish (US)
Pages (from-to)9275-9278
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Issue number13
DOIs
StatePublished - 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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