Magnetic mesocrystal-assisted magnetoresistance in manganite

Jan Chi Yang, Qing He, Yuan Min Zhu, Jheng Cyuan Lin, Heng Jui Liu, Ying Hui Hsieh, Ping Chun Wu, Yen Lin Chen, Shang Fan Lee, Yi Ying Chin, Hong Ji Lin, Chien Te Chen, Qian Zhan, Elke Arenholz, Ying Hao Chu

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

Mesocrystal, a new class of crystals as compared to conventional and well-known single crystals and polycrystalline systems, has captured significant attention in the past decade. Recent studies have been focused on the advance of synthesis mechanisms as well as the potential on device applications. In order to create further opportunities upon functional mesocrystals, we fabricated a self-assembled nanocomposite composed of magnetic CoFe2O4 mesocrystal in Sr-doped manganites. This combination exhibits intriguing structural and magnetic tunabilities. Furthermore, the antiferromagnetic coupling of the mesocrystal and matrix has induced an additional magnetic perturbation to spin-polarized electrons, resulting in a significantly enhanced magnetoresistance in the nanocomposite. Our work demonstrates a new thought toward the enhancement of intrinsic functionalities assisted by mesocrystals and advanced design of novel mesocrystal-embedded nanocomposites.

Original languageEnglish
Pages (from-to)6073-6079
Number of pages7
JournalNano letters
Volume14
Issue number11
DOIs
Publication statusPublished - 2014 Nov 12

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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