Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Sylvia Yuk Yee Chung"'
Publikováno v:
AIP Advances, Vol 11, Iss 11, Pp 115225-115225-10 (2021)
Using molecular dynamics, the effect of an atomic mass difference on a localized phonon mode in SiGe alloys was investigated. Phonon dispersion relations revealed that a change in atomic mass causes the optical and acoustic modes to shift frequency.
Externí odkaz:
https://doaj.org/article/a8366e761b2d4418838e2340d6880597
Autor:
Sylvia Yuk Yee Chung, Motohiro Tomita, Junya Takizawa, Ryo Yokogawa, Atsushi Ogura, Haidong Wang, Takanobu Watanabe
Publikováno v:
AIP Advances, Vol 11, Iss 7, Pp 075017-075017-7 (2021)
Using molecular dynamics, we found that the localized phonon-mode spectrum in SiGe alloys, which was recently discovered by an inelastic x-ray scattering experiment, changes according to the size distribution of compositional clusters in alloys. By v
Externí odkaz:
https://doaj.org/article/7851e87b10ea402aaf1dbd4a05fb21e1
Autor:
Xiaohua Zhu, Siwu Shao, Yuhao Chang, Runming Zhang, Sylvia Yuk Yee Chung, Yu Fu, Te Bi, Yabo Huang, Kang An, Jinlong Liu, Chengming Li, Hiroshi Kawarada
Publikováno v:
IEEE Electron Device Letters. 43:789-792
Publikováno v:
ECS Transactions. 98:533-546
Advancements in semiconductor technology coincide with an increasing need for better understanding of thermal transport and phonon behaviour in such devices. The difficulty lies with observing and measuring these phonon properties, oftentimes proving
Autor:
Ryo Yokogawa, Yasutomo Arai, Ichiro Yonenaga, Motohiro Tomita, Sylvia Yuk Yee Chung, Hiroshi Uchiyama, Takanobu Watanabe, Atsushi Ogura
Publikováno v:
Applied Physics Letters. 121:082105
We report on the behavior of an acoustic phonon spectral linewidth of bulk single-crystalline Si1− xGe x alloy with the x of 0.16, 0.32, and 0.45 in the phonon dispersion relation along the Γ–X ([00 q]) direction. Broadening of both transverse a
Autor:
Takeo Matsuki, Motohiro Tomita, Kazuaki Katayama, Takanobu Watanabe, Sylvia Yuk Yee Chung, Takumi Hoshina, Tsubasa Kashizaki
Publikováno v:
Japanese Journal of Applied Physics. 61:SC1017
Heat guide (HG) is a layer providing a heat flux to the desired part in a micro thermoelectric generator (μ-TEG). In this work, we experimentally investigated the impact of the HG structure on the thermoelectric voltage of a cavity-free planer-type
Autor:
Junya Takizawa, Sylvia Yuk Yee Chung, Motohiro Tomita, Ryo Yokogawa, Atsushi Ogura, Takanobu Watanabe
Publikováno v:
Extended Abstracts of the 2020 International Conference on Solid State Devices and Materials.
Publikováno v:
AIP Advances, Vol 11, Iss 11, Pp 115225-115225-10 (2021)
Using molecular dynamics, the effect of an atomic mass difference on a localized phonon mode in SiGe alloys was investigated. Phonon dispersion relations revealed that a change in atomic mass causes the optical and acoustic modes to shift frequency.
Autor:
Junya Takizawa, Motohiro Tomita, Atsushi Ogura, Takanobu Watanabe, Ryo Yokogawa, Haidong Wang, Sylvia Yuk Yee Chung
Publikováno v:
AIP Advances, Vol 11, Iss 7, Pp 075017-075017-7 (2021)
Using molecular dynamics, we found that the localized phonon-mode spectrum in SiGe alloys, which was recently discovered by an inelastic x-ray scattering experiment, changes according to the size distribution of compositional clusters in alloys. By v