Charge Writing at the LaAlO3/SrTiO3 Surface

Yanwu Xie; Christopher Bell; Takeaki Yajima; Yasuyuki Hikita; Harold Y. Hwang; Chris Bell

doi:10.1021/nl1012695

Charge Writing at the LaAlO3/SrTiO3 Surface

Yanwu Xie, Christopher Bell, Takeaki Yajima, Yasuyuki Hikita, Harold Y. Hwang^*, Chris Bell

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

109 Citations (Scopus)

Abstract

Biased conducting-up atomic force microscopy (AFM) has been shown to write and erase nanoscale metallic lines at the LaAlO3/SrTiO3 interface Using various AFM modes, we show the mechanism of conductivity switching is the writing of surface charge These charges are stably deposited on a wide range of LaAlO3 thicknesses, including bulk crystals. A strong asymmetry with writing polarity was found for 1 and 2 unit cells of LaAlO3, providing experimental evidence for a theoretically predicted built-in potential

Original language	English
Pages (from-to)	2588-2591
Number of pages	4
Journal	Nano Letters
Volume	10
Issue number	7
DOIs	https://doi.org/10.1021/nl1012695
Publication status	Published - Jul 2010

Keywords

Heterointerfaces
complex oxides
charge writing
atomic force microscopy
ELECTROSTATIC FORCE MICROSCOPY
ROOM-TEMPERATURE
HETEROSTRUCTURES
STORAGE
SRTIO3

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@article{518ff9dac1e34de5a310f38c5703bdf4,

title = "Charge Writing at the LaAlO3/SrTiO3 Surface",

abstract = "Biased conducting-up atomic force microscopy (AFM) has been shown to write and erase nanoscale metallic lines at the LaAlO3/SrTiO3 interface Using various AFM modes, we show the mechanism of conductivity switching is the writing of surface charge These charges are stably deposited on a wide range of LaAlO3 thicknesses, including bulk crystals. A strong asymmetry with writing polarity was found for 1 and 2 unit cells of LaAlO3, providing experimental evidence for a theoretically predicted built-in potential",

keywords = "Heterointerfaces, complex oxides, charge writing, atomic force microscopy, ELECTROSTATIC FORCE MICROSCOPY, ROOM-TEMPERATURE, HETEROSTRUCTURES, STORAGE, SRTIO3",

author = "Yanwu Xie and Christopher Bell and Takeaki Yajima and Yasuyuki Hikita and Hwang, {Harold Y.} and Chris Bell",

year = "2010",

month = jul,

doi = "10.1021/nl1012695",

language = "English",

volume = "10",

pages = "2588--2591",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "7",

}

TY - JOUR

T1 - Charge Writing at the LaAlO3/SrTiO3 Surface

AU - Xie, Yanwu

AU - Bell, Christopher

AU - Yajima, Takeaki

AU - Hikita, Yasuyuki

AU - Hwang, Harold Y.

AU - Bell, Chris

PY - 2010/7

Y1 - 2010/7

N2 - Biased conducting-up atomic force microscopy (AFM) has been shown to write and erase nanoscale metallic lines at the LaAlO3/SrTiO3 interface Using various AFM modes, we show the mechanism of conductivity switching is the writing of surface charge These charges are stably deposited on a wide range of LaAlO3 thicknesses, including bulk crystals. A strong asymmetry with writing polarity was found for 1 and 2 unit cells of LaAlO3, providing experimental evidence for a theoretically predicted built-in potential

AB - Biased conducting-up atomic force microscopy (AFM) has been shown to write and erase nanoscale metallic lines at the LaAlO3/SrTiO3 interface Using various AFM modes, we show the mechanism of conductivity switching is the writing of surface charge These charges are stably deposited on a wide range of LaAlO3 thicknesses, including bulk crystals. A strong asymmetry with writing polarity was found for 1 and 2 unit cells of LaAlO3, providing experimental evidence for a theoretically predicted built-in potential

KW - Heterointerfaces

KW - complex oxides

KW - charge writing

KW - atomic force microscopy

KW - ELECTROSTATIC FORCE MICROSCOPY

KW - ROOM-TEMPERATURE

KW - HETEROSTRUCTURES

KW - STORAGE

KW - SRTIO3

U2 - 10.1021/nl1012695

DO - 10.1021/nl1012695

M3 - Article (Academic Journal)

C2 - 20518539

SN - 1530-6984

VL - 10

SP - 2588

EP - 2591

JO - Nano Letters

JF - Nano Letters

IS - 7

ER -

Charge Writing at the LaAlO3/SrTiO3 Surface

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Keywords

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