Perpendicular Exchange-Biased Magnetotransport at the Vertical Heterointerfaces in La0.7Sr0.3MnO3:NiO Nanocomposites

Wenrui Zhang; Leigang Li; Ping Lu; Meng Fan; Qing Su; Fauzia Khatkhatay; Aiping Chen; Quanxi Jia; Xinghang Zhang; Judith L. MacManus-Driscoll; Haiyan Wang

doi:10.1021/acsami.5b06314

Perpendicular Exchange-Biased Magnetotransport at the Vertical Heterointerfaces in La_0.7Sr_0.3MnO₃:NiO Nanocomposites

Wenrui Zhang
, Leigang Li
, Ping Lu
, Meng Fan
, Qing Su
, Fauzia Khatkhatay
, Aiping Chen
, Quanxi Jia
, Xinghang Zhang
, Judith L. MacManus-Driscoll
, Haiyan Wang

Department of Materials Design and Innovation

Texas A&M University
Sandia National Laboratories, New Mexico
Los Alamos National Laboratory
University of Cambridge

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

43 Scopus citations

Abstract

Heterointerfaces in manganite-based heterostructures in either layered or vertical geometry control their magnetotransport properties. Instead of using spin-polarized tunneling across the interface, a unique approach based on the magnetic exchange coupling along the vertical interface to control the magnetotransport properties has been demonstrated. By coupling ferromagnetic La_0.7Sr_0.3MnO₃ and antiferromagnetic NiO in an epitaxial vertically aligned nanocomposite (VAN) architecture, a dynamic and reversible switch of the resistivity between two distinct exchange biased states has been achieved. This study explores the use of vertical interfacial exchange coupling to tailor magnetotransport properties, and demonstrates their viability for spintronic applications.

Original language	English
Pages (from-to)	21646-21651
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	7
Issue number	39
DOIs	https://doi.org/10.1021/acsami.5b06314
State	Published - Oct 7 2015

Keywords

exchange bias
interface
magnetotransport
perpendicular anisotropy
vertically aligned nanocomposites (VAN)

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10.1021/acsami.5b06314

Cite this

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title = "Perpendicular Exchange-Biased Magnetotransport at the Vertical Heterointerfaces in La0.7Sr0.3MnO3:NiO Nanocomposites",

abstract = "Heterointerfaces in manganite-based heterostructures in either layered or vertical geometry control their magnetotransport properties. Instead of using spin-polarized tunneling across the interface, a unique approach based on the magnetic exchange coupling along the vertical interface to control the magnetotransport properties has been demonstrated. By coupling ferromagnetic La0.7Sr0.3MnO3 and antiferromagnetic NiO in an epitaxial vertically aligned nanocomposite (VAN) architecture, a dynamic and reversible switch of the resistivity between two distinct exchange biased states has been achieved. This study explores the use of vertical interfacial exchange coupling to tailor magnetotransport properties, and demonstrates their viability for spintronic applications.",

keywords = "exchange bias, interface, magnetotransport, perpendicular anisotropy, vertically aligned nanocomposites (VAN)",

author = "Wenrui Zhang and Leigang Li and Ping Lu and Meng Fan and Qing Su and Fauzia Khatkhatay and Aiping Chen and Quanxi Jia and Xinghang Zhang and MacManus-Driscoll, \{Judith L.\} and Haiyan Wang",

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doi = "10.1021/acsami.5b06314",

language = "English",

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T1 - Perpendicular Exchange-Biased Magnetotransport at the Vertical Heterointerfaces in La0.7Sr0.3MnO3:NiO Nanocomposites

AU - Zhang, Wenrui

AU - Li, Leigang

AU - Lu, Ping

AU - Fan, Meng

AU - Su, Qing

AU - Khatkhatay, Fauzia

AU - Chen, Aiping

AU - Jia, Quanxi

AU - Zhang, Xinghang

AU - MacManus-Driscoll, Judith L.

AU - Wang, Haiyan

PY - 2015/10/7

Y1 - 2015/10/7

N2 - Heterointerfaces in manganite-based heterostructures in either layered or vertical geometry control their magnetotransport properties. Instead of using spin-polarized tunneling across the interface, a unique approach based on the magnetic exchange coupling along the vertical interface to control the magnetotransport properties has been demonstrated. By coupling ferromagnetic La0.7Sr0.3MnO3 and antiferromagnetic NiO in an epitaxial vertically aligned nanocomposite (VAN) architecture, a dynamic and reversible switch of the resistivity between two distinct exchange biased states has been achieved. This study explores the use of vertical interfacial exchange coupling to tailor magnetotransport properties, and demonstrates their viability for spintronic applications.

AB - Heterointerfaces in manganite-based heterostructures in either layered or vertical geometry control their magnetotransport properties. Instead of using spin-polarized tunneling across the interface, a unique approach based on the magnetic exchange coupling along the vertical interface to control the magnetotransport properties has been demonstrated. By coupling ferromagnetic La0.7Sr0.3MnO3 and antiferromagnetic NiO in an epitaxial vertically aligned nanocomposite (VAN) architecture, a dynamic and reversible switch of the resistivity between two distinct exchange biased states has been achieved. This study explores the use of vertical interfacial exchange coupling to tailor magnetotransport properties, and demonstrates their viability for spintronic applications.

KW - exchange bias

KW - interface

KW - magnetotransport

KW - perpendicular anisotropy

KW - vertically aligned nanocomposites (VAN)

UR - https://www.scopus.com/pages/publications/84944128047

U2 - 10.1021/acsami.5b06314

DO - 10.1021/acsami.5b06314

M3 - Article

AN - SCOPUS:84944128047

SN - 1944-8244

VL - 7

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JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 39

ER -

Perpendicular Exchange-Biased Magnetotransport at the Vertical Heterointerfaces in La_0.7Sr_0.3MnO₃:NiO Nanocomposites

Abstract

Keywords

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