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Approaching ultrathin VO 2 films on sapphire (001) substrates by biased reactive sputtering: Characteristic morphology and its effect on the infrared-light switching

Kunio Okimura , Joe Sakai , Masashi Kuwahara , Mustapha Zaghrioui , Yoichi Uehara et al.
Journal of Vacuum Science & Technology A, 2021, 39 (4), pp.043401. ⟨10.1116/6.0001023⟩
Journal articles hal-03581443v1

Pulsed laser-deposited VO 2 thin films on Pt layers

Joe Sakai , Mustapha Zaghrioui , Vinh Ta Phuoc , Sylvain Roger , Cecile Autret et al.
Journal of Applied Physics, 2013, 113 (12), pp.123503. ⟨10.1063/1.4795813⟩
Journal articles hal-01794471v1

Polarized Raman Scattering of Large Crystalline Domains in VO2 Films on Sapphire

Mustapha Zaghrioui , Joe Sakai , Nurul Hanis Azhan , Kui Su , Kunio Okimura et al.
Vibrational Spectroscopy, 2015, 80, pp.79-85. ⟨10.1016/j.vibspec.2015.08.003⟩
Journal articles hal-01831018v1

Phase Selective Growth and Characterization of Vanadium Dioxide Films on Silicon Substrates

Tomo Watanabe , Kunio Okimura , Tetsuya Hajiri , Shin-Ichi Kimura , Joe Sakai et al.
Journal of Applied Physics, 2013, 113 (16), pp.163503. ⟨10.1063/1.4802652⟩
Journal articles hal-01757218v1

Recrystallization of VO 2 films into (011)-oriented micrometer-sized grains on Al 2 O 3 (001) in biased reactive sputtering

Nurul Hanis Azhan , Kunio Okimura , Kohei Matsuoka , Mustapha Zaghrioui , Joe Sakai et al.
Journal of Vacuum Science & Technology A, 2017, 35 (6), pp.061508. ⟨10.1116/1.4989669⟩
Journal articles hal-02140271v1

Impact of Thermal Expansion of Substrates on Phase Transition Temperature of VO2 Films

Joe Sakai , Mustapha Zaghrioui , Masaaki Matsushima , Hiroshi Funakubo , Kunio Okimura et al.
Journal of Applied Physics, 2014, 116 (12), pp.123510. ⟨10.1063/1.4896500⟩
Journal articles hal-01831022v1

Stress-induced VO2 films with M2 Monoclinic Phase Stable at Room Temperature Grown by Inductively Coupled Plasma-Assisted Reactive Sputtering

Kunio Okimura , Tomo Watanabe , Joe Sakai
Journal of Applied Physics, 2012, 111 (7), pp.073514. ⟨10.1063/1.3700210⟩
Journal articles hal-01757222v1

Radio Frequency Substrate Biasing Effects on the Insulator-Metal Transition Behavior of Reactively Sputtered VO2 Films on Sapphire (001)

Nurul Hanis Azhan , Kui Su , Kunio Okimura , Joe Sakai
Journal of Applied Physics, 2015, 117 (18), pp.185307. ⟨10.1063/1.4921105⟩
Journal articles hal-01757210v1

Self-Oscillation up to 9 MHz Based on Voltage Triggered Switching inin VO2/TiN Point Contact Junctions

Md. Suruz Mian , Kunio Okimura , Joe Sakai
Journal of Applied Physics, 2015, 117 (21), pp.215305. ⟨10.1063/1.4922122⟩
Journal articles hal-01757205v1

Appearance of Large Crystalline Domains in VO2 Films Grown on Sapphire (001) and Their Phase Transition Characteristics

Nurul Hanis Azhan , Kui Su , Kunio Okimura , Mustapha Zaghrioui , Joe Sakai et al.
Journal of Applied Physics, 2015, 117 (24), pp.245314. ⟨10.1063/1.4923223⟩
Journal articles hal-01831019v1

Temperature-Dependent Raman and Ultraviolet Photoelectron Spectroscopy Studies on Phase Transition Behavior of VO2 Films with M1 and M2 Phases

Kunio Okimura , Nurul Hanis Azhan , Tetsuya Hajiri , Shin-Ichi Kimura , Mustapha Zaghrioui et al.
Journal of Applied Physics, 2014, 115 (15), pp.153501. ⟨10.1063/1.4870868⟩
Journal articles hal-01831023v1

Persistent M2 phase in strongly strained (011)-oriented grains in VO 2 films grown on sapphire (001) in reactive sputtering

Kohei Matsuoka , Kunio Okimura , Nurul Hanis Azhan , Mustapha Zaghrioui , Joe Sakai et al.
Journal of Applied Physics, 2019, 125 (16), pp.165304. ⟨10.1063/1.5068700⟩
Journal articles hal-02525682v1