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

doi:10.1063/1.4917263

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

ENG - Electronic Engineering

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The lattice parameter dependence of the Néel temperature T_N 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 T_N in Cr₂O₃, which is consistent with theoretical calculations.

Original language	English
Article number	17D137
Journal	Journal of Applied Physics
Volume	117
Issue number	17
DOIs	https://doi.org/10.1063/1.4917263
Publication status	Published - 2015 May 7

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "N{\'e}el temperature of Cr2O3 in Cr2O3/Co exchange-coupled system: Effect of buffer layer",

abstract = "The lattice parameter dependence of the N{\'e}el 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 N{\'e}el 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.",

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T2 - Effect of buffer layer

AU - Pati, Satya Prakash

AU - Shimomura, Naoki

AU - Nozaki, Tomohiro

AU - Shibata, Tatsuo

AU - Sahashi, Masashi

PY - 2015/5/7

Y1 - 2015/5/7

N2 - 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.

AB - 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.

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

Abstract

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