Néel temperature of Cr2O3 in Cr2O3/Co exchange-coupled system: Effect of buffer layer

Satya Prakash Pati, Naoki Shimomura, Tomohiro Nozaki, Tatsuo Shibata, Masashi Sahashi

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The lattice parameter dependence of the Néel temperature TN of thin Cr2O3 in a Cr2O3/Co exchange-coupled system is investigated. Lattice-mismatch-induced strain is generated in Cr2O3 by using different buffer layers. The lattice parameters are determined from out-of-plane and in-plane X-ray diffraction measurements. The Néel temperature is detected by direct temperature-dependent magnetization measurement as well as the temperature-dependent interface exchange coupling energy. It is observed that in-plane lattice contraction can enhance TN in Cr2O3, which is consistent with theoretical calculations.

Original languageEnglish
Article number17D137
JournalJournal of Applied Physics
Volume117
Issue number17
DOIs
Publication statusPublished - 2015 May 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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