Phase transition in bulk single crystals and thin films of by nanoscale infrared spectroscopy and imaging
Abstract
We have systematically studied a variety of vanadium dioxide (VO2) crystalline forms, including bulk single crystals and oriented thin films, using infrared (IR) near-field spectroscopic imaging techniques. By measuring the IR spectroscopic responses of electrons and phonons in VO2 with sub-grain-size spatial resolution (~20nm), we show that epitaxial strain in VO2 thin films not only triggers spontaneous local phase separations, but leads to intermediate electronic and lattice states that are intrinsically different from those found in bulk. Generalized rules of strain- and symmetry-dependent mesoscopic phase inhomogeneity are also discussed. Furthermore, these results set the stage for a comprehensive understanding of complex energy landscapes that may not be readily determined by macroscopic approaches.
- Authors:
-
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- Univ. of California at San Diego, La Jolla, CA (United States); Stony Brook Univ., Stony Brook, NY (United States)
- Univ. of California at San Diego, La Jolla, CA (United States)
- Metal-Insulator Transition Creative Research Center, Daejeon (South Korea)
- Iowa State Univ., Ames, IA (United States)
- Univ. of Virginia, Charlottesville, VA (United States)
- College of William and Mary, Williamsburg, VA (United States)
- Boston Univ., Boston, MA (United States); ETH Zurich, Zurich (Switzerland)
- Univ. of California at San Diego, La Jolla, CA (United States); Boston Univ., Boston, MA (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Univ. of Colorado, Boulder, CO (United States)
- Metal-Insulator Transition Creative Research Center, Daejeon (South Korea); Korean Univ. of Science and Technology, Daejeon (South Korea)
- Publication Date:
- Research Org.:
- Ames Lab., Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1227379
- Alternate Identifier(s):
- OSTI ID: 1198608
- Report Number(s):
- IS-J-8721
Journal ID: ISSN 1098-0121; PRBMDO
- Grant/Contract Number:
- W911NF-13-1-0210; AC02-05CH11231; AC02-07CH11358; SC0012592; FG02-09ER46643; 1255156
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Volume: 91; Journal Issue: 24; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Liu, Mengkun, Sternbach, Aaron J., Wagner, Martin, Slusar, Tetiana V., Kong, Tai, Bud'ko, Sergey L., Kittiwatanakul, Salinporn, Qazilbash, M. M., McLeod, Alexander, Fei, Zhe, Abreu, Elsa, Zhang, Jingdi, Goldflam, Michael, Dai, Siyuan, Ni, Guang -Xin, Lu, Jiwei, Bechtel, Hans A., Martin, Michael C., Raschke, Markus B., Averitt, Richard D., Wolf, Stuart A., Kim, Hyun -Tak, Canfield, Paul C., and Basov, D. N. Phase transition in bulk single crystals and thin films of VO2 by nanoscale infrared spectroscopy and imaging. United States: N. p., 2015.
Web. doi:10.1103/PhysRevB.91.245155.
Liu, Mengkun, Sternbach, Aaron J., Wagner, Martin, Slusar, Tetiana V., Kong, Tai, Bud'ko, Sergey L., Kittiwatanakul, Salinporn, Qazilbash, M. M., McLeod, Alexander, Fei, Zhe, Abreu, Elsa, Zhang, Jingdi, Goldflam, Michael, Dai, Siyuan, Ni, Guang -Xin, Lu, Jiwei, Bechtel, Hans A., Martin, Michael C., Raschke, Markus B., Averitt, Richard D., Wolf, Stuart A., Kim, Hyun -Tak, Canfield, Paul C., & Basov, D. N. Phase transition in bulk single crystals and thin films of VO2 by nanoscale infrared spectroscopy and imaging. United States. https://doi.org/10.1103/PhysRevB.91.245155
Liu, Mengkun, Sternbach, Aaron J., Wagner, Martin, Slusar, Tetiana V., Kong, Tai, Bud'ko, Sergey L., Kittiwatanakul, Salinporn, Qazilbash, M. M., McLeod, Alexander, Fei, Zhe, Abreu, Elsa, Zhang, Jingdi, Goldflam, Michael, Dai, Siyuan, Ni, Guang -Xin, Lu, Jiwei, Bechtel, Hans A., Martin, Michael C., Raschke, Markus B., Averitt, Richard D., Wolf, Stuart A., Kim, Hyun -Tak, Canfield, Paul C., and Basov, D. N. Mon .
"Phase transition in bulk single crystals and thin films of VO2 by nanoscale infrared spectroscopy and imaging". United States. https://doi.org/10.1103/PhysRevB.91.245155. https://www.osti.gov/servlets/purl/1227379.
@article{osti_1227379,
title = {Phase transition in bulk single crystals and thin films of VO2 by nanoscale infrared spectroscopy and imaging},
author = {Liu, Mengkun and Sternbach, Aaron J. and Wagner, Martin and Slusar, Tetiana V. and Kong, Tai and Bud'ko, Sergey L. and Kittiwatanakul, Salinporn and Qazilbash, M. M. and McLeod, Alexander and Fei, Zhe and Abreu, Elsa and Zhang, Jingdi and Goldflam, Michael and Dai, Siyuan and Ni, Guang -Xin and Lu, Jiwei and Bechtel, Hans A. and Martin, Michael C. and Raschke, Markus B. and Averitt, Richard D. and Wolf, Stuart A. and Kim, Hyun -Tak and Canfield, Paul C. and Basov, D. N.},
abstractNote = {We have systematically studied a variety of vanadium dioxide (VO2) crystalline forms, including bulk single crystals and oriented thin films, using infrared (IR) near-field spectroscopic imaging techniques. By measuring the IR spectroscopic responses of electrons and phonons in VO2 with sub-grain-size spatial resolution (~20nm), we show that epitaxial strain in VO2 thin films not only triggers spontaneous local phase separations, but leads to intermediate electronic and lattice states that are intrinsically different from those found in bulk. Generalized rules of strain- and symmetry-dependent mesoscopic phase inhomogeneity are also discussed. Furthermore, these results set the stage for a comprehensive understanding of complex energy landscapes that may not be readily determined by macroscopic approaches.},
doi = {10.1103/PhysRevB.91.245155},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 24,
volume = 91,
place = {United States},
year = {Mon Jun 29 00:00:00 EDT 2015},
month = {Mon Jun 29 00:00:00 EDT 2015}
}
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