Temperature-dependent Raman and ultraviolet photoelectron spectroscopy studies on phase transition behavior of VO2 films with M1 and M2 phases
作者： Kunio Okimura , Nurul Hanis Azhan , Tetsuya Hajiri , Shin-ichi Kimura , Mustapha Zaghrioui
DOI: 10.1063/1.4870868
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摘要: Structural and electronic phase transitions behavior of two polycrystalline VO2 films, one with pure M1 the other M2 at room temperature, were investigated by temperature-controlled Raman spectroscopy ultraviolet photoelectron (UPS). We observed characteristic transient dynamics in which modes 195 cm−1 (V-V vibration) 616 cm−1 (V-O showed remarkable hardening along temperature film, indicating rearrangements V-V pairs VO6 octahedra. It was also shown that mode frequency approached those invariant peaks before entering rutile phase. In UPS spectra high energy resolution 0.03 eV for narrower V3d band together smaller gap compared to supporting nature Mott insulator even film. Cooperative lattice transition suggested
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sci-hub.se 参考文章(47)
Kunio Okimura, Joe Sakai, Shriram Ramanathan, In situ x-ray diffraction studies on epitaxial VO2 films grown on c-Al2O3 during thermally induced insulator-metal transition Journal of Applied Physics. ,vol. 107, pp. 063503- ,(2010) , 10.1063/1.3327422
J. Y. Suh, E. U. Donev, R. Lopez, L. C. Feldman, R. F. Haglund, Modulated optical transmission of subwavelength hole arrays in metal-VO2 films Applied Physics Letters. ,vol. 88, pp. 133115- ,(2006) , 10.1063/1.2190463
Alexander Tselev, John D. Budai, Evgheni Strelcov, Jonathan Z. Tischler, Andrei Kolmakov, Sergei V. Kalinin, Electromechanical actuation and current-induced metastable states in suspended single-crystalline VO2 nanoplatelets Nano Letters. ,vol. 11, pp. 3065- 3073 ,(2011) , 10.1021/NL200493K
F. J. Morin, Oxides Which Show a Metal-to-Insulator Transition at the Neel Temperature Physical Review Letters. ,vol. 3, pp. 34- 36 ,(1959) , 10.1103/PHYSREVLETT.3.34
M. Marezio, D. B. McWhan, J. P. Remeika, P. D. Dernier, Structural Aspects of the Metal-Insulator Transitions in Cr-Doped V O 2 Physical Review B. ,vol. 5, pp. 2541- 2551 ,(1972) , 10.1103/PHYSREVB.5.2541
J. C. Parker, Raman scattering from VO2 single crystals: A study of the effects of surface oxidation. Physical Review B. ,vol. 42, pp. 3164- 3166 ,(1990) , 10.1103/PHYSREVB.42.3164
M. Nazari, Y. Zhao, V. Hallum, A. A. Bernussi, Z. Y. Fan, M. Holtz, Finite size effect on the phase transition of vanadium dioxide Applied Physics Letters. ,vol. 103, pp. 043108- ,(2013) , 10.1063/1.4816507
S. Shin, S. Suga, M. Taniguchi, M. Fujisawa, H. Kanzaki, A. Fujimori, H. Daimon, Y. Ueda, K. Kosuge, S. Kachi, Vacuum-ultraviolet reflectance and photoemission study of the metal-insulator phase transitions inVO2,V6O13, andV2O3 Physical Review B. ,vol. 41, pp. 4993- 5009 ,(1990) , 10.1103/PHYSREVB.41.4993
Tomo Watanabe, Kunio Okimura, Tetsuya Hajiri, Shin-ichi Kimura, Joe Sakai, Phase selective growth and characterization of vanadium dioxide films on silicon substrates Journal of Applied Physics. ,vol. 113, pp. 163503- ,(2013) , 10.1063/1.4802652
Jung Inn Sohn, Heung Jin Joo, Docheon Ahn, Hyun Hwi Lee, Alexandra E. Porter, Kinam Kim, Dae Joon Kang, Mark E. Welland, Surface-stress-induced Mott transition and nature of associated spatial phase transition in single crystalline VO2 nanowires. Nano Letters. ,vol. 9, pp. 3392- 3397 ,(2009) , 10.1021/NL900841K