Electric-field effects on magnetism of Fe/NCZF/PZT composite thin film

Venkata Ramana Mudinepalli; Po Chun Chang; Chuan Che Hsu; Fang Yuh Lo; Huang Wei Chang; Wen Chin Lin

doi:10.1016/j.jmmm.2016.12.141

Electric-field effects on magnetism of Fe/NCZF/PZT composite thin film

Venkata Ramana Mudinepalli
, Po Chun Chang
, Chuan Che Hsu
, Fang Yuh Lo
, Huang Wei Chang
, Wen Chin Lin^*

^*Corresponding author for this work

Department of Physics

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

9 Citations (Scopus)

Abstract

Electric field control of magnetism has many potential applications in magnetic memory storage, sensors and spintronics. Epitaxial heterostructure involving ferroelectric (FE), ferromagnetic (FM) materials is one of the possible routes towards the realization of devices exploiting sizable magnetoelectric effects. In this study, we prepared multiferroic composite ferromagnet/ferrite/ferroelectric thin films on SrTiO₃(1 1 1) substrate by electron beam evaporation and pulsed laser deposition. This system represents a prototypical example of interface between body-centered-cubic Fe, spinel NCZF (Ni_0.25Cu_0.05Zn_0.7Fe_1.96O_3.96) and perovskite PZT (PbZr_0.52Ti_0.48O₃), respectively. Magnetoelectric effects measured as a function of bias voltage on these heterostructures have been investigated via magneto-optical Kerr effect (MOKE). The magnetic coercivity (H_c) considerably decreased as a voltage was applied. The H_c values exhibited the similar variation whether the applied voltage was positive or negative and the reversibility was demonstrated. The strain coupling-mediated magnetoelectric effect and local heating effect are supposed to be the possible origins of H_c variation.

Original language	English
Pages (from-to)	90-95
Number of pages	6
Journal	Journal of Magnetism and Magnetic Materials
Volume	432
DOIs	https://doi.org/10.1016/j.jmmm.2016.12.141
Publication status	Published - 2017 Jun 15

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2016.12.141

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@article{0ad6ee6a4b0b4453b179e683a982743e,

title = "Electric-field effects on magnetism of Fe/NCZF/PZT composite thin film",

abstract = "Electric field control of magnetism has many potential applications in magnetic memory storage, sensors and spintronics. Epitaxial heterostructure involving ferroelectric (FE), ferromagnetic (FM) materials is one of the possible routes towards the realization of devices exploiting sizable magnetoelectric effects. In this study, we prepared multiferroic composite ferromagnet/ferrite/ferroelectric thin films on SrTiO3(1 1 1) substrate by electron beam evaporation and pulsed laser deposition. This system represents a prototypical example of interface between body-centered-cubic Fe, spinel NCZF (Ni0.25Cu0.05Zn0.7Fe1.96O3.96) and perovskite PZT (PbZr0.52Ti0.48O3), respectively. Magnetoelectric effects measured as a function of bias voltage on these heterostructures have been investigated via magneto-optical Kerr effect (MOKE). The magnetic coercivity (Hc) considerably decreased as a voltage was applied. The Hc values exhibited the similar variation whether the applied voltage was positive or negative and the reversibility was demonstrated. The strain coupling-mediated magnetoelectric effect and local heating effect are supposed to be the possible origins of Hc variation.",

author = "Mudinepalli, \{Venkata Ramana\} and Chang, \{Po Chun\} and Hsu, \{Chuan Che\} and Lo, \{Fang Yuh\} and Chang, \{Huang Wei\} and Lin, \{Wen Chin\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

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day = "15",

doi = "10.1016/j.jmmm.2016.12.141",

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T1 - Electric-field effects on magnetism of Fe/NCZF/PZT composite thin film

AU - Mudinepalli, Venkata Ramana

AU - Chang, Po Chun

AU - Hsu, Chuan Che

AU - Lo, Fang Yuh

AU - Chang, Huang Wei

AU - Lin, Wen Chin

PY - 2017/6/15

Y1 - 2017/6/15

N2 - Electric field control of magnetism has many potential applications in magnetic memory storage, sensors and spintronics. Epitaxial heterostructure involving ferroelectric (FE), ferromagnetic (FM) materials is one of the possible routes towards the realization of devices exploiting sizable magnetoelectric effects. In this study, we prepared multiferroic composite ferromagnet/ferrite/ferroelectric thin films on SrTiO3(1 1 1) substrate by electron beam evaporation and pulsed laser deposition. This system represents a prototypical example of interface between body-centered-cubic Fe, spinel NCZF (Ni0.25Cu0.05Zn0.7Fe1.96O3.96) and perovskite PZT (PbZr0.52Ti0.48O3), respectively. Magnetoelectric effects measured as a function of bias voltage on these heterostructures have been investigated via magneto-optical Kerr effect (MOKE). The magnetic coercivity (Hc) considerably decreased as a voltage was applied. The Hc values exhibited the similar variation whether the applied voltage was positive or negative and the reversibility was demonstrated. The strain coupling-mediated magnetoelectric effect and local heating effect are supposed to be the possible origins of Hc variation.

AB - Electric field control of magnetism has many potential applications in magnetic memory storage, sensors and spintronics. Epitaxial heterostructure involving ferroelectric (FE), ferromagnetic (FM) materials is one of the possible routes towards the realization of devices exploiting sizable magnetoelectric effects. In this study, we prepared multiferroic composite ferromagnet/ferrite/ferroelectric thin films on SrTiO3(1 1 1) substrate by electron beam evaporation and pulsed laser deposition. This system represents a prototypical example of interface between body-centered-cubic Fe, spinel NCZF (Ni0.25Cu0.05Zn0.7Fe1.96O3.96) and perovskite PZT (PbZr0.52Ti0.48O3), respectively. Magnetoelectric effects measured as a function of bias voltage on these heterostructures have been investigated via magneto-optical Kerr effect (MOKE). The magnetic coercivity (Hc) considerably decreased as a voltage was applied. The Hc values exhibited the similar variation whether the applied voltage was positive or negative and the reversibility was demonstrated. The strain coupling-mediated magnetoelectric effect and local heating effect are supposed to be the possible origins of Hc variation.

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JO - Journal of Magnetism and Magnetic Materials

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Electric-field effects on magnetism of Fe/NCZF/PZT composite thin film

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