Simultaneous Structural and Electronic Transitions in Epitaxial VO2/TiO2(001)
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...
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| Veröffentlicht in: | Physical review letters 2020-05, Vol.124 (19) |
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| container_title | Physical review letters |
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| creator | Paez, Galo J Singh, Christopher N Wahila, Matthew J Tirpak, Keith E Quackenbush, Nicholas F Sallis, Shawn Paik, Hanjong Liang, Yufeng Schlom, Darrell G Lee, Tien-Lin Schlueter, Christoph Lee, Wei-Cheng Piper, Louis F J |
| description | 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). |
| doi_str_mv | 10.1103/PhysRevLett.124.196402 |
| format | Article |
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| ispartof | Physical review letters, 2020-05, Vol.124 (19) |
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| source | American Physical Society Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Phase transitions Photoelectrons Standing waves Thin films Titanium dioxide Vanadium oxides |
| title | Simultaneous Structural and Electronic Transitions in Epitaxial VO2/TiO2(001) |
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