Magnetic and electrical properties of three-dimensional (La,Pr,Ca)MnO 3 nanofilm/ZnO nanorod p-n junctions

  • Ming Zheng
  • , Qiu Xiang Zhu
  • , Xue Yan Li
  • , Xiao Min Li
  • , Ren Kui Zheng*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Three-dimensional (3D) nanostructured p-n junctions have been fabricated by growing p-type La0.5Pr0.17Ca0.33MnO 3 (LPCMO) manganite thin film on n-type ZnO nanorod arrays using pulsed laser deposition. The 3D LPCMO nanofilm/ZnO nanorod p-n junctions exhibit excellent room temperature rectification performance with a high rectification factor of ∼1650 at ±5.0 V, approximately 14 times larger than that of manganite film- and ZnO nanowires (or film)-based layered p-n junctions. The ferromagnetic phase transition temperature TC for the LPCMO nanofilm is significantly (∼28 K) higher than that of 2D LPCMO films directly grown on Si substrates, which is interpreted in terms of the nanograin-induced surface effect and lattice strain effect. The large portion of magnetically frozen phase establishes the existence of strong electronic phase separation in the 3D nanofilm. This journal is

Original languageEnglish
Pages (from-to)32622-32627
Number of pages6
JournalRSC Advances
Volume4
Issue number62
DOIs
StatePublished - 2014
Externally publishedYes

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