Symmetry breaking and geometric confinement in VO2: Results from a three-dimensional infrared nano-imaging
Epitaxial strain can play an important role in controlling the local phase dynamics of transition metal oxides. With scattering-type scanning near-field optical microscopy, we visualize the three dimensional landscape of phase inhomogeneity in strained VO2 films grown on [100]R TiO2 substrates. We d...
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| Veröffentlicht in: | Applied physics letters 2014-03, Vol.104 (12) |
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| container_title | Applied physics letters |
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| creator | Liu, Mengkun Wagner, Martin Zhang, Jingdi McLeod, Alexander Kittiwatanakul, Salinporn Fei, Zhe Abreu, Elsa Goldflam, Michael Sternbach, Aaron J. Dai, Siyuan West, Kevin G. Lu, Jiwei Wolf, Stuart A. Averitt, Richard D. Basov, D. N. |
| description | Epitaxial strain can play an important role in controlling the local phase dynamics of transition metal oxides. With scattering-type scanning near-field optical microscopy, we visualize the three dimensional landscape of phase inhomogeneity in strained VO2 films grown on [100]R TiO2 substrates. We demonstrate that three different symmetries are spontaneously broken in the vicinity of the VO2 phase transition: (1) Monoclinic-tetragonal (rutile) crystal symmetry breaking due to the structural phase transition, (2) in-plane (x-y plane) rotational symmetry breaking due to the formation of periodic strain domains, and (3) out-of-plane (z-axis) mirror symmetry breaking at the film cross-section due to substrate-induced epitaxial strain. |
| doi_str_mv | 10.1063/1.4869558 |
| format | Article |
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N.</creator><creatorcontrib>Liu, Mengkun ; Wagner, Martin ; Zhang, Jingdi ; McLeod, Alexander ; Kittiwatanakul, Salinporn ; Fei, Zhe ; Abreu, Elsa ; Goldflam, Michael ; Sternbach, Aaron J. ; Dai, Siyuan ; West, Kevin G. ; Lu, Jiwei ; Wolf, Stuart A. ; Averitt, Richard D. ; Basov, D. N.</creatorcontrib><description>Epitaxial strain can play an important role in controlling the local phase dynamics of transition metal oxides. With scattering-type scanning near-field optical microscopy, we visualize the three dimensional landscape of phase inhomogeneity in strained VO2 films grown on [100]R TiO2 substrates. We demonstrate that three different symmetries are spontaneously broken in the vicinity of the VO2 phase transition: (1) Monoclinic-tetragonal (rutile) crystal symmetry breaking due to the structural phase transition, (2) in-plane (x-y plane) rotational symmetry breaking due to the formation of periodic strain domains, and (3) out-of-plane (z-axis) mirror symmetry breaking at the film cross-section due to substrate-induced epitaxial strain.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.4869558</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Broken symmetry ; Crystal structure ; Domains ; Infrared imaging ; Inhomogeneity ; Optical microscopy ; Phase transitions ; Substrates ; Symmetry ; Titanium dioxide ; Transition metal oxides ; Transition metals ; Vanadium oxides</subject><ispartof>Applied physics letters, 2014-03, Vol.104 (12)</ispartof><rights>2014 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c323t-84b2f48ff6a00ad81564f7a078cc447bd9bf07d357f726dbcd81bd08eebd88003</citedby><cites>FETCH-LOGICAL-c323t-84b2f48ff6a00ad81564f7a078cc447bd9bf07d357f726dbcd81bd08eebd88003</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Liu, Mengkun</creatorcontrib><creatorcontrib>Wagner, Martin</creatorcontrib><creatorcontrib>Zhang, Jingdi</creatorcontrib><creatorcontrib>McLeod, Alexander</creatorcontrib><creatorcontrib>Kittiwatanakul, Salinporn</creatorcontrib><creatorcontrib>Fei, Zhe</creatorcontrib><creatorcontrib>Abreu, Elsa</creatorcontrib><creatorcontrib>Goldflam, Michael</creatorcontrib><creatorcontrib>Sternbach, Aaron J.</creatorcontrib><creatorcontrib>Dai, Siyuan</creatorcontrib><creatorcontrib>West, Kevin G.</creatorcontrib><creatorcontrib>Lu, Jiwei</creatorcontrib><creatorcontrib>Wolf, Stuart A.</creatorcontrib><creatorcontrib>Averitt, Richard D.</creatorcontrib><creatorcontrib>Basov, D. N.</creatorcontrib><title>Symmetry breaking and geometric confinement in VO2: Results from a three-dimensional infrared nano-imaging</title><title>Applied physics letters</title><description>Epitaxial strain can play an important role in controlling the local phase dynamics of transition metal oxides. With scattering-type scanning near-field optical microscopy, we visualize the three dimensional landscape of phase inhomogeneity in strained VO2 films grown on [100]R TiO2 substrates. We demonstrate that three different symmetries are spontaneously broken in the vicinity of the VO2 phase transition: (1) Monoclinic-tetragonal (rutile) crystal symmetry breaking due to the structural phase transition, (2) in-plane (x-y plane) rotational symmetry breaking due to the formation of periodic strain domains, and (3) out-of-plane (z-axis) mirror symmetry breaking at the film cross-section due to substrate-induced epitaxial strain.</description><subject>Applied physics</subject><subject>Broken symmetry</subject><subject>Crystal structure</subject><subject>Domains</subject><subject>Infrared imaging</subject><subject>Inhomogeneity</subject><subject>Optical microscopy</subject><subject>Phase transitions</subject><subject>Substrates</subject><subject>Symmetry</subject><subject>Titanium dioxide</subject><subject>Transition metal oxides</subject><subject>Transition metals</subject><subject>Vanadium oxides</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNotkEtLAzEUhYMoWKsL_0HAlYvUPGaS1J0Uq0Kh4Gsb8qxTO0lNpov-e1Pa1eXe-3E45wBwS_CEYM4eyKSRfNq28gyMCBYCMULkORhhjBmqD3IJrkpZ17WljI3A-mPf937Ie2iy179dXEEdHVz5dLh2FtoUQxd97-MAuwi_l_QRvvuy2wwFhpx6qOHwk71HrqtM6VLUmwqGrLN3MOqYUNfrVRW-BhdBb4q_Oc0x-Jo_f85e0WL58jZ7WiDLKBuQbAwNjQyBa4y1k6TlTRAaC2lt0wjjpiZg4VgrgqDcGVsR47D03jgpa8wxuDvqbnP62_kyqHXa5WqrKEqo4JLzVlbq_kjZnErJPqhtrkbzXhGsDlUqok5Vsn-mKmbm</recordid><startdate>20140324</startdate><enddate>20140324</enddate><creator>Liu, Mengkun</creator><creator>Wagner, Martin</creator><creator>Zhang, Jingdi</creator><creator>McLeod, Alexander</creator><creator>Kittiwatanakul, Salinporn</creator><creator>Fei, Zhe</creator><creator>Abreu, Elsa</creator><creator>Goldflam, Michael</creator><creator>Sternbach, Aaron J.</creator><creator>Dai, Siyuan</creator><creator>West, Kevin G.</creator><creator>Lu, Jiwei</creator><creator>Wolf, Stuart A.</creator><creator>Averitt, Richard D.</creator><creator>Basov, D. 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N.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Mengkun</au><au>Wagner, Martin</au><au>Zhang, Jingdi</au><au>McLeod, Alexander</au><au>Kittiwatanakul, Salinporn</au><au>Fei, Zhe</au><au>Abreu, Elsa</au><au>Goldflam, Michael</au><au>Sternbach, Aaron J.</au><au>Dai, Siyuan</au><au>West, Kevin G.</au><au>Lu, Jiwei</au><au>Wolf, Stuart A.</au><au>Averitt, Richard D.</au><au>Basov, D. N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Symmetry breaking and geometric confinement in VO2: Results from a three-dimensional infrared nano-imaging</atitle><jtitle>Applied physics letters</jtitle><date>2014-03-24</date><risdate>2014</risdate><volume>104</volume><issue>12</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><abstract>Epitaxial strain can play an important role in controlling the local phase dynamics of transition metal oxides. With scattering-type scanning near-field optical microscopy, we visualize the three dimensional landscape of phase inhomogeneity in strained VO2 films grown on [100]R TiO2 substrates. We demonstrate that three different symmetries are spontaneously broken in the vicinity of the VO2 phase transition: (1) Monoclinic-tetragonal (rutile) crystal symmetry breaking due to the structural phase transition, (2) in-plane (x-y plane) rotational symmetry breaking due to the formation of periodic strain domains, and (3) out-of-plane (z-axis) mirror symmetry breaking at the film cross-section due to substrate-induced epitaxial strain.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4869558</doi></addata></record> |
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| language | eng |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics Broken symmetry Crystal structure Domains Infrared imaging Inhomogeneity Optical microscopy Phase transitions Substrates Symmetry Titanium dioxide Transition metal oxides Transition metals Vanadium oxides |
| title | Symmetry breaking and geometric confinement in VO2: Results from a three-dimensional infrared nano-imaging |
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