Creation and modulation of conductivity in laser-irradiated SrTiO3 single crystals

Z. T. Zhang; H. Yan; S. H. Wang; L. X. Ren; C. L. Chen; K. X. Jin

doi:10.1016/j.scriptamat.2018.06.038

Creation and modulation of conductivity in laser-irradiated SrTiO₃ single crystals

Z. T. Zhang, H. Yan, S. H. Wang, L. X. Ren, C. L. Chen, K. X. Jin

School of Physical Science and Technology

Northwestern Polytechnical University Xian

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

15 Scopus citations

Abstract

We realize a controllable metallic behavior on stoichiometric (100) SrTiO₃ single crystals via KrF laser irradiation, which strongly depends on vacuum and laser energy density. Moreover, this metallic conduction is caused by oxygen deficiency and can be manipulated by light illumination and electrostatic gating field. The laser-irradiated SrTiO₃ shows sensitive persistent photoresponse with a relative change in the resistance of about 45% at 20 K for a 360 nm light. In addition, the conduction can also be modulated to a lower (higher) state by a positive (negative) backgate. Our results highlight the possibility of tuning the electrical properties of oxides.

Original language	English
Pages (from-to)	64-69
Number of pages	6
Journal	Scripta Materialia
Volume	156
DOIs	https://doi.org/10.1016/j.scriptamat.2018.06.038
State	Published - Nov 2018

Keywords

Laser treatment
Oxides
Surface
Transmission electron microscopy
Transport properties

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10.1016/j.scriptamat.2018.06.038

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title = "Creation and modulation of conductivity in laser-irradiated SrTiO3 single crystals",

abstract = "We realize a controllable metallic behavior on stoichiometric (100) SrTiO3 single crystals via KrF laser irradiation, which strongly depends on vacuum and laser energy density. Moreover, this metallic conduction is caused by oxygen deficiency and can be manipulated by light illumination and electrostatic gating field. The laser-irradiated SrTiO3 shows sensitive persistent photoresponse with a relative change in the resistance of about 45% at 20 K for a 360 nm light. In addition, the conduction can also be modulated to a lower (higher) state by a positive (negative) backgate. Our results highlight the possibility of tuning the electrical properties of oxides.",

keywords = "Laser treatment, Oxides, Surface, Transmission electron microscopy, Transport properties",

author = "Zhang, {Z. T.} and H. Yan and Wang, {S. H.} and Ren, {L. X.} and Chen, {C. L.} and Jin, {K. X.}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

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doi = "10.1016/j.scriptamat.2018.06.038",

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volume = "156",

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TY - JOUR

T1 - Creation and modulation of conductivity in laser-irradiated SrTiO3 single crystals

AU - Zhang, Z. T.

AU - Yan, H.

AU - Wang, S. H.

AU - Ren, L. X.

AU - Chen, C. L.

AU - Jin, K. X.

PY - 2018/11

Y1 - 2018/11

N2 - We realize a controllable metallic behavior on stoichiometric (100) SrTiO3 single crystals via KrF laser irradiation, which strongly depends on vacuum and laser energy density. Moreover, this metallic conduction is caused by oxygen deficiency and can be manipulated by light illumination and electrostatic gating field. The laser-irradiated SrTiO3 shows sensitive persistent photoresponse with a relative change in the resistance of about 45% at 20 K for a 360 nm light. In addition, the conduction can also be modulated to a lower (higher) state by a positive (negative) backgate. Our results highlight the possibility of tuning the electrical properties of oxides.

AB - We realize a controllable metallic behavior on stoichiometric (100) SrTiO3 single crystals via KrF laser irradiation, which strongly depends on vacuum and laser energy density. Moreover, this metallic conduction is caused by oxygen deficiency and can be manipulated by light illumination and electrostatic gating field. The laser-irradiated SrTiO3 shows sensitive persistent photoresponse with a relative change in the resistance of about 45% at 20 K for a 360 nm light. In addition, the conduction can also be modulated to a lower (higher) state by a positive (negative) backgate. Our results highlight the possibility of tuning the electrical properties of oxides.

KW - Laser treatment

KW - Oxides

KW - Surface

KW - Transmission electron microscopy

KW - Transport properties

UR - http://www.scopus.com/inward/record.url?scp=85049887399&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2018.06.038

DO - 10.1016/j.scriptamat.2018.06.038

M3 - 文章

AN - SCOPUS:85049887399

SN - 1359-6462

VL - 156

SP - 64

EP - 69

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Creation and modulation of conductivity in laser-irradiated SrTiO₃ single crystals

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Keywords

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