Simultaneous Structural and Electronic Transitions in Epitaxial VO2/TiO2(001)

被引：40

作者：

Paez, Galo J. ^{[1
]}

Singh, Christopher N. ^{[1
]}

Wahila, Matthew J. ^{[2
]}

Tirpak, Keith E. ^{[1
]}

Quackenbush, Nicholas F. ^{[1
]}

Sallis, Shawn ^{[2
]}

Paik, Hanjong ^{[3
,4
]}

Liang, Yufeng ^{[5
]}

Schlom, Darrell G. ^{[3
,6
]}

Lee, Tien-Lin ^{[7
]}

Schlueter, Christoph ^{[7
]}

Lee, Wei-Cheng ^{[1
]}

Piper, Louis F. J. ^{[1
,2
]}

机构：

[1] SUNY Binghamton, Dept Phys, Binghamton, NY 13850 USA

[2] SUNY Binghamton, Mat Sci & Engn, Binghamton, NY 13850 USA

[3] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA

[4] Cornell Univ, Platform Accelerated Realizat Anal & Discovery In, Ithaca, NY 14853 USA

[5] Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA

[6] Kavli Inst Cornell Nanoscale Sci, Ithaca, NY 14853 USA

[7] Diamond Light Source Ltd, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 124卷 / 19期

基金：

美国国家科学基金会;

关键词：

METAL-INSULATOR-TRANSITION; MOTT-HUBBARD; VO2; PEIERLS; VIEW;

D O I：

10.1103/PhysRevLett.124.196402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent reports have identified new metaphases of VO2 with strain and/or doping, suggesting the structural phase transition and the metal-to-insulator transition might be decoupled. Using epitaxially strained VO2/TiO2(001) thin films, which display a bulklike abrupt metal-to-insulator transition and rutile to monoclinic transition structural phase transition, we employ x-ray standing waves combined with hard x-ray photoelectron spectroscopy to simultaneously measure the structural and electronic transitions. This x-ray standing waves study elegantly demonstrates the structural and electronic transitions occur concurrently within experimental limits (+/- 1 K).

引用

页数：6

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