Voltage-induced reversible changes in the magnetic coercivity of Fe/ZnO heterostructures

Wen Chin Lin; Po Chun Chang; Cheng Jui Tsai; Tsung Chun Shieh; Fang Yuh Lo

doi:10.1063/1.4865591

Voltage-induced reversible changes in the magnetic coercivity of Fe/ZnO heterostructures

Wen Chin Lin^*, Po Chun Chang, Cheng Jui Tsai, Tsung Chun Shieh, Fang Yuh Lo

^*Corresponding author for this work

Department of Physics

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

18 Citations (Scopus)

Abstract

In this study, the magnetic coercivity (H_c) of Fe/ZnO heterostructure monotonically decreased as voltage was applied. The reversibility of this effect was demonstrated by cyclically changing the bias voltage from 0 to 6-9 V; the H_c decreased 15%-20%. The H_c value exhibited the same variation whether the applied voltage was positive or negative. As thick Fe-oxide gradually formed at the interface by using direct current heating, the H_c increased and the Fe/ZnO heterostructure demonstrated a similar voltage-induced reduction of H_c.

Original language	English
Article number	062411
Journal	Applied Physics Letters
Volume	104
Issue number	6
DOIs	https://doi.org/10.1063/1.4865591
Publication status	Published - 2014 Oct 2

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4865591

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title = "Voltage-induced reversible changes in the magnetic coercivity of Fe/ZnO heterostructures",

abstract = "In this study, the magnetic coercivity (Hc) of Fe/ZnO heterostructure monotonically decreased as voltage was applied. The reversibility of this effect was demonstrated by cyclically changing the bias voltage from 0 to 6-9 V; the Hc decreased 15%-20%. The Hc value exhibited the same variation whether the applied voltage was positive or negative. As thick Fe-oxide gradually formed at the interface by using direct current heating, the Hc increased and the Fe/ZnO heterostructure demonstrated a similar voltage-induced reduction of Hc.",

author = "Lin, {Wen Chin} and Chang, {Po Chun} and Tsai, {Cheng Jui} and Shieh, {Tsung Chun} and Lo, {Fang Yuh}",

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AU - Lin, Wen Chin

AU - Chang, Po Chun

AU - Tsai, Cheng Jui

AU - Shieh, Tsung Chun

AU - Lo, Fang Yuh

PY - 2014/10/2

Y1 - 2014/10/2

N2 - In this study, the magnetic coercivity (Hc) of Fe/ZnO heterostructure monotonically decreased as voltage was applied. The reversibility of this effect was demonstrated by cyclically changing the bias voltage from 0 to 6-9 V; the Hc decreased 15%-20%. The Hc value exhibited the same variation whether the applied voltage was positive or negative. As thick Fe-oxide gradually formed at the interface by using direct current heating, the Hc increased and the Fe/ZnO heterostructure demonstrated a similar voltage-induced reduction of Hc.

AB - In this study, the magnetic coercivity (Hc) of Fe/ZnO heterostructure monotonically decreased as voltage was applied. The reversibility of this effect was demonstrated by cyclically changing the bias voltage from 0 to 6-9 V; the Hc decreased 15%-20%. The Hc value exhibited the same variation whether the applied voltage was positive or negative. As thick Fe-oxide gradually formed at the interface by using direct current heating, the Hc increased and the Fe/ZnO heterostructure demonstrated a similar voltage-induced reduction of Hc.

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Voltage-induced reversible changes in the magnetic coercivity of Fe/ZnO heterostructures

Abstract

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