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Pressure-induced me...
Pressure-induced metallization and amorphization in VO2(A) nanorods
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Cheng, Benyuan (author)
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Li, Quanjun (author)
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Zhang, Huafang (author)
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Liu, Ran (author)
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Liu, Bo (author)
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Yao, Zhen (author)
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Cui, Tian (author)
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Liu, Jing (author)
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Liu, Zhenxian (author)
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- Sundqvist, Bertil (author)
- Umeå universitet,Institutionen för fysik,State Key Laboratory of Superhard Materials, Jilin University, 130012 Changchun, China
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Liu, Bingbing (author)
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(creator_code:org_t)
- 2016
- 2016
- English.
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In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 93:18
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Abstract
Subject headings
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- A metallic state enabled by the metal-insulator transition (MIT) in single crystal VO2(A) nanorods is demonstrated, which provides important physical foundation in experimental understanding of MIT in VO2. The observed tetragonal metallic state at ∼28 GPa should be interpreted as a distinct metastable state, while increasing pressure to ∼32 GPa, it transforms into a metallic amorphous state completely. The metallization is due to V 3d orbital electrons delocalization, and the amorphization is attributed to the unique variation of V-O-V bond angle. A metallic amorphous VO2 state is found under pressure, which is beneficial to explore the phase diagram of VO2. Furthermore, this work proves the occurrence of both the metallization and amorphization in octahedrally coordinated materials.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Amorphization
- vanadium dioxide
- high pressure
- metal-insulator transition
- Raman spectroscopy
- X-ray diffraction
- fasta tillståndets fysik
- Solid State Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Cheng, Benyuan
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Li, Quanjun
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Zhang, Huafang
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Liu, Ran
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Liu, Bo
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Yao, Zhen
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show more...
-
Cui, Tian
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Liu, Jing
-
Liu, Zhenxian
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Sundqvist, Berti ...
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Liu, Bingbing
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Physical Review ...
- By the university
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Umeå University