Orientation-dependent crack patterns at the surface of SrTiO3 crystals induced by laser irradiation

Zhaoting Zhang; Hong Yan; Ming Li; Shuanhu Wang; Kexin Jin

doi:10.1016/j.physb.2022.413853

Orientation-dependent crack patterns at the surface of SrTiO₃ crystals induced by laser irradiation

Zhaoting Zhang, Hong Yan, Ming Li, Shuanhu Wang, Kexin Jin

School of Physical Science and Technology

Northwestern Polytechnical University Xian

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

2 Scopus citations

Abstract

Laser irradiation offers a unique ability to bring about desired material modification. Here, orientation-dependent crack patterns appear on the surface of SrTiO₃ (STO) crystals after laser irradiation. Atomic force microscopy and scanning electron microscopy characterizations reveal rectangular crack patterns on (110) STO surface and polygonal patterns on (111) STO surface. The microcrack patterns are expected to result from the release of residual stresses after local heating. At the same time, an insulator-metal transition has been observed after laser irradiation, which is attributed to laser-induced oxygen vacancies. Our findings are helpful for a deeper understanding of light-matter interaction and the development of relevant applications.

Original language	English
Article number	413853
Journal	Physica B: Condensed Matter
Volume	637
DOIs	https://doi.org/10.1016/j.physb.2022.413853
State	Published - 15 Jul 2022

Keywords

Crystalline oxides
Laser treatment
Surface modification
Transport properties

Access to Document

10.1016/j.physb.2022.413853

Cite this

@article{ebd950bc236a4be28b6a1b1d12de200c,

title = "Orientation-dependent crack patterns at the surface of SrTiO3 crystals induced by laser irradiation",

abstract = "Laser irradiation offers a unique ability to bring about desired material modification. Here, orientation-dependent crack patterns appear on the surface of SrTiO3 (STO) crystals after laser irradiation. Atomic force microscopy and scanning electron microscopy characterizations reveal rectangular crack patterns on (110) STO surface and polygonal patterns on (111) STO surface. The microcrack patterns are expected to result from the release of residual stresses after local heating. At the same time, an insulator-metal transition has been observed after laser irradiation, which is attributed to laser-induced oxygen vacancies. Our findings are helpful for a deeper understanding of light-matter interaction and the development of relevant applications.",

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

author = "Zhaoting Zhang and Hong Yan and Ming Li and Shuanhu Wang and Kexin Jin",

note = "Publisher Copyright: {\textcopyright} Elsevier B.V.",

year = "2022",

month = jul,

day = "15",

doi = "10.1016/j.physb.2022.413853",

language = "英语",

volume = "637",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Orientation-dependent crack patterns at the surface of SrTiO3 crystals induced by laser irradiation

AU - Zhang, Zhaoting

AU - Yan, Hong

AU - Li, Ming

AU - Wang, Shuanhu

AU - Jin, Kexin

N1 - Publisher Copyright: © Elsevier B.V.

PY - 2022/7/15

Y1 - 2022/7/15

N2 - Laser irradiation offers a unique ability to bring about desired material modification. Here, orientation-dependent crack patterns appear on the surface of SrTiO3 (STO) crystals after laser irradiation. Atomic force microscopy and scanning electron microscopy characterizations reveal rectangular crack patterns on (110) STO surface and polygonal patterns on (111) STO surface. The microcrack patterns are expected to result from the release of residual stresses after local heating. At the same time, an insulator-metal transition has been observed after laser irradiation, which is attributed to laser-induced oxygen vacancies. Our findings are helpful for a deeper understanding of light-matter interaction and the development of relevant applications.

AB - Laser irradiation offers a unique ability to bring about desired material modification. Here, orientation-dependent crack patterns appear on the surface of SrTiO3 (STO) crystals after laser irradiation. Atomic force microscopy and scanning electron microscopy characterizations reveal rectangular crack patterns on (110) STO surface and polygonal patterns on (111) STO surface. The microcrack patterns are expected to result from the release of residual stresses after local heating. At the same time, an insulator-metal transition has been observed after laser irradiation, which is attributed to laser-induced oxygen vacancies. Our findings are helpful for a deeper understanding of light-matter interaction and the development of relevant applications.

KW - Crystalline oxides

KW - Laser treatment

KW - Surface modification

KW - Transport properties

UR - http://www.scopus.com/inward/record.url?scp=85128168179&partnerID=8YFLogxK

U2 - 10.1016/j.physb.2022.413853

DO - 10.1016/j.physb.2022.413853

M3 - 文章

AN - SCOPUS:85128168179

SN - 0921-4526

VL - 637

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

M1 - 413853

ER -

Orientation-dependent crack patterns at the surface of SrTiO₃ crystals induced by laser irradiation

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this