Magnetic and electrical transport properties of LaBaCo2O 5.5+δ thin films on vicinal (001) SrTiO3 Surfaces

Chunrui Ma; Ming Liu; Gregory Collins; Haibin Wang; Shanyong Bao; Xing Xu; Erik Enriquez; Chonglin Chen; Yuan Lin; Myung Hwan Whangbo

doi:10.1021/am302553y

Magnetic and electrical transport properties of LaBaCo₂O _5.5+δ thin films on vicinal (001) SrTiO₃ Surfaces

Chunrui Ma
, Ming Liu
, Gregory Collins
, Haibin Wang
, Shanyong Bao
, Xing Xu
, Erik Enriquez
, Chonglin Chen
, Yuan Lin
, Myung Hwan Whangbo

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

50 Scopus citations

Abstract

Highly epitaxial LaBaCo₂O_5.5+δ thin films were grown on the vicinal (001) SrTiO₃ substrates with miscut angles of 0.57deg;, 3.0deg;, and 5.0deg; to systemically study strain effect on its physical properties. The electronic transport properties and magnetic behaviors of these films are strongly dependent on the miscut angles. With increasing the miscut angle, the transport property of the film changes from semiconducting to semimetallic, which results most probably from the locally strained domains induced by the surface step terraces. In addition, a very large magnetoresistance (34% at 60 K) was achieved for the 0.5° -miscut film, which is ∼30% larger than that for the film grown on the regular (001) SrTiO₃ substrates.

Original language	English
Pages (from-to)	451-455
Number of pages	5
Journal	ACS Applied Materials and Interfaces
Volume	5
Issue number	2
DOIs	https://doi.org/10.1021/am302553y
State	Published - 23 Jan 2013
Externally published	Yes

Keywords

LaBaCoO
electronic transport
epitaxial thin film
magnetoresistance
surface and interface
vicinal surface

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10.1021/am302553y

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title = "Magnetic and electrical transport properties of LaBaCo2O 5.5+δ thin films on vicinal (001) SrTiO3 Surfaces",

abstract = "Highly epitaxial LaBaCo2O5.5+δ thin films were grown on the vicinal (001) SrTiO3 substrates with miscut angles of 0.57deg;, 3.0deg;, and 5.0deg; to systemically study strain effect on its physical properties. The electronic transport properties and magnetic behaviors of these films are strongly dependent on the miscut angles. With increasing the miscut angle, the transport property of the film changes from semiconducting to semimetallic, which results most probably from the locally strained domains induced by the surface step terraces. In addition, a very large magnetoresistance (34\% at 60 K) was achieved for the 0.5° -miscut film, which is ∼30\% larger than that for the film grown on the regular (001) SrTiO3 substrates.",

keywords = "LaBaCoO, electronic transport, epitaxial thin film, magnetoresistance, surface and interface, vicinal surface",

author = "Chunrui Ma and Ming Liu and Gregory Collins and Haibin Wang and Shanyong Bao and Xing Xu and Erik Enriquez and Chonglin Chen and Yuan Lin and Whangbo, \{Myung Hwan\}",

year = "2013",

month = jan,

day = "23",

doi = "10.1021/am302553y",

language = "英语",

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pages = "451--455",

journal = "ACS Applied Materials and Interfaces",

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TY - JOUR

T1 - Magnetic and electrical transport properties of LaBaCo2O 5.5+δ thin films on vicinal (001) SrTiO3 Surfaces

AU - Ma, Chunrui

AU - Liu, Ming

AU - Collins, Gregory

AU - Wang, Haibin

AU - Bao, Shanyong

AU - Xu, Xing

AU - Enriquez, Erik

AU - Chen, Chonglin

AU - Lin, Yuan

AU - Whangbo, Myung Hwan

PY - 2013/1/23

Y1 - 2013/1/23

N2 - Highly epitaxial LaBaCo2O5.5+δ thin films were grown on the vicinal (001) SrTiO3 substrates with miscut angles of 0.57deg;, 3.0deg;, and 5.0deg; to systemically study strain effect on its physical properties. The electronic transport properties and magnetic behaviors of these films are strongly dependent on the miscut angles. With increasing the miscut angle, the transport property of the film changes from semiconducting to semimetallic, which results most probably from the locally strained domains induced by the surface step terraces. In addition, a very large magnetoresistance (34% at 60 K) was achieved for the 0.5° -miscut film, which is ∼30% larger than that for the film grown on the regular (001) SrTiO3 substrates.

AB - Highly epitaxial LaBaCo2O5.5+δ thin films were grown on the vicinal (001) SrTiO3 substrates with miscut angles of 0.57deg;, 3.0deg;, and 5.0deg; to systemically study strain effect on its physical properties. The electronic transport properties and magnetic behaviors of these films are strongly dependent on the miscut angles. With increasing the miscut angle, the transport property of the film changes from semiconducting to semimetallic, which results most probably from the locally strained domains induced by the surface step terraces. In addition, a very large magnetoresistance (34% at 60 K) was achieved for the 0.5° -miscut film, which is ∼30% larger than that for the film grown on the regular (001) SrTiO3 substrates.

KW - LaBaCoO

KW - electronic transport

KW - epitaxial thin film

KW - magnetoresistance

KW - surface and interface

KW - vicinal surface

UR - https://www.scopus.com/pages/publications/84872841854

U2 - 10.1021/am302553y

DO - 10.1021/am302553y

M3 - 文章

AN - SCOPUS:84872841854

SN - 1944-8244

VL - 5

SP - 451

EP - 455

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 2

ER -

Magnetic and electrical transport properties of LaBaCo₂O _5.5+δ thin films on vicinal (001) SrTiO₃ Surfaces

Abstract

Keywords

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