Effects of strain on the electronic structure and magnetic properties in SrMn0.5Fe0.5O3

Chun Wei Mi, Yi Ying Chin, Yen Fu Hsiao, Hau Wei Fang, Chih-Wei Luo, Kaung-Hsiung Wu, Tzeng Ming Uen, Jiunn-Yuan Lin, Hong Ji Lin, Jenh-Yih Juang

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The electronic structure and magnetic properties of SrMn0.5Fe0.5O3 powder and films grown on (1 0 0)-SrTiO3 (STO) and (1 0 0)-LaAlO3 (Lao) substrates by pulsed laser deposition (PLD) were investigated by temperature dependent magnetization and soft x-ray absorption. The results exhibit characteristics of 3d 5 Fe3+, and 3d3 + 3d 4 Mn4+ at room temperature in all samples. However, the features of 3d 5 Fe3+ and 3d 3 Mn4+ increased significantly for SMFO/Lao at 35 K, which also displayed substantial competition between antiferromagnetic and ferromagnetic order well-above the Néel temperature of SrFeO3 (T N ∼ 134 K). We attributed this to being caused by charge disproportionation resulting from ligand-hole localization, which is more favorable to take place when the sample is under compressive strain.

Original languageEnglish
Article number345501
JournalJournal of Physics Condensed Matter
Issue number34
StatePublished - 29 Jun 2016


  • charge disproportionation
  • spin-glass
  • strain effect
  • strongly correlated system
  • x-ray absorption spectroscopy


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