Quasi two-dimensional electron gas generated by laser irradiation at rutile TiO2 surface

Zhaoting Zhang; Hong Yan; Jinzhou Shen; Shuanhu Wang; Kexin Jin

doi:10.1016/j.scriptamat.2022.114741

Quasi two-dimensional electron gas generated by laser irradiation at rutile TiO₂ surface

Zhaoting Zhang
, Hong Yan
, Jinzhou Shen
, Shuanhu Wang
, Kexin Jin

School of Physical Science and Technology

Northwestern Polytechnical University Xian

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

6 Scopus citations

Abstract

Two-dimensional electron gas exhibits abundant physical properties that can facilitate new physics and novel device applications. Herein, we report on a systematic investigation on rutile TiO₂-based quasi two-dimensional electron gas generated by laser irradiation. A transition from nonmagnetic insulator to ferromagnetic metal has been demonstrated after laser irradiation. A joint X-ray photoelectron spectroscopy and Raman spectroscopy analysis allows us to associate the metallic ferromagnetic state with the surface formation of oxygen vacancies and Ti³⁺. The universality of laser irradiation implies wide potential applicability to the fabrication of multifunctional oxide devices.

Original language	English
Article number	114741
Journal	Scripta Materialia
Volume	216
DOIs	https://doi.org/10.1016/j.scriptamat.2022.114741
State	Published - 15 Jul 2022

Keywords

Crystalline oxides
Laser treatment
Surface modification
Transport properties

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10.1016/j.scriptamat.2022.114741

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title = "Quasi two-dimensional electron gas generated by laser irradiation at rutile TiO2 surface",

abstract = "Two-dimensional electron gas exhibits abundant physical properties that can facilitate new physics and novel device applications. Herein, we report on a systematic investigation on rutile TiO2-based quasi two-dimensional electron gas generated by laser irradiation. A transition from nonmagnetic insulator to ferromagnetic metal has been demonstrated after laser irradiation. A joint X-ray photoelectron spectroscopy and Raman spectroscopy analysis allows us to associate the metallic ferromagnetic state with the surface formation of oxygen vacancies and Ti3+. The universality of laser irradiation implies wide potential applicability to the fabrication of multifunctional oxide devices.",

keywords = "Crystalline oxides, Laser treatment, Surface modification, Transport properties",

author = "Zhaoting Zhang and Hong Yan and Jinzhou Shen and Shuanhu Wang and Kexin Jin",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2022",

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doi = "10.1016/j.scriptamat.2022.114741",

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T1 - Quasi two-dimensional electron gas generated by laser irradiation at rutile TiO2 surface

AU - Zhang, Zhaoting

AU - Yan, Hong

AU - Shen, Jinzhou

AU - Wang, Shuanhu

AU - Jin, Kexin

PY - 2022/7/15

Y1 - 2022/7/15

N2 - Two-dimensional electron gas exhibits abundant physical properties that can facilitate new physics and novel device applications. Herein, we report on a systematic investigation on rutile TiO2-based quasi two-dimensional electron gas generated by laser irradiation. A transition from nonmagnetic insulator to ferromagnetic metal has been demonstrated after laser irradiation. A joint X-ray photoelectron spectroscopy and Raman spectroscopy analysis allows us to associate the metallic ferromagnetic state with the surface formation of oxygen vacancies and Ti3+. The universality of laser irradiation implies wide potential applicability to the fabrication of multifunctional oxide devices.

AB - Two-dimensional electron gas exhibits abundant physical properties that can facilitate new physics and novel device applications. Herein, we report on a systematic investigation on rutile TiO2-based quasi two-dimensional electron gas generated by laser irradiation. A transition from nonmagnetic insulator to ferromagnetic metal has been demonstrated after laser irradiation. A joint X-ray photoelectron spectroscopy and Raman spectroscopy analysis allows us to associate the metallic ferromagnetic state with the surface formation of oxygen vacancies and Ti3+. The universality of laser irradiation implies wide potential applicability to the fabrication of multifunctional oxide devices.

KW - Crystalline oxides

KW - Laser treatment

KW - Surface modification

KW - Transport properties

UR - https://www.scopus.com/pages/publications/85129194326

U2 - 10.1016/j.scriptamat.2022.114741

DO - 10.1016/j.scriptamat.2022.114741

M3 - 文章

AN - SCOPUS:85129194326

SN - 1359-6462

VL - 216

JO - Scripta Materialia

JF - Scripta Materialia

M1 - 114741

ER -

Quasi two-dimensional electron gas generated by laser irradiation at rutile TiO₂ surface

Abstract

Keywords

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