scholarly journals Calculation of divergent photon absorption in ultrathin films of a topological insulator

2013 ◽  
Vol 88 (19) ◽  
Author(s):  
Jing Wang ◽  
Hideo Mabuchi ◽  
Xiao-Liang Qi
Keyword(s):  
Topological Insulator ◽  
Ultrathin Films ◽  
Photon Absorption

scholarly journals Atomically smooth ultrathin films of topological insulator Sb2Te3

Nano Research ◽  
2010 ◽  
Vol 3 (12) ◽  
pp. 874-880 ◽  
Author(s):  
Guang Wang ◽  
Xiegang Zhu ◽  
Jing Wen ◽  
Xi Chen ◽  
Ke He ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Ultrathin Films

Liquid-Gated Ambipolar Transport in Ultrathin Films of a Topological Insulator Bi2Te3

Nano Letters ◽  
2011 ◽  
Vol 11 (7) ◽  
pp. 2601-2605 ◽  
Author(s):  
Hongtao Yuan ◽  
Hongwen Liu ◽  
Hidekazu Shimotani ◽  
Hua Guo ◽  
Mingwei Chen ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Ultrathin Films ◽  
Ambipolar Transport

Electrical tuning of transport properties of topological insulator ultrathin films

Nanoscale ◽  
2014 ◽  
Vol 6 (6) ◽  
pp. 3127 ◽  
Author(s):  
H. Li ◽  
J. M. Shao ◽  
H. B. Zhang ◽  
G. W. Yang
Keyword(s):  
Transport Properties ◽  
Topological Insulator ◽  
Ultrathin Films

Two-photon absorption within layered Bi2Te3 topological insulators and the role of nonlinear transmittance therein

2019 ◽  
Vol 7 (23) ◽  
pp. 7027-7034 ◽  
Author(s):  
Junpeng Qiao ◽  
Meng-Yuan Chuang ◽  
Jia-Chi Lan ◽  
Yuan-Yao Lin ◽  
Wei-Heng Sung ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Bismuth Telluride ◽  
Topological Insulator ◽  
Topological Insulators ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

In this study, strong two-photon absorption (TPA) in a layered bismuth telluride (Bi2Te3) topological insulator (TI) is observed and investigated by the Z-scan method under excitation with a femtosecond laser pulse at a wavelength of 1056 nm.

scholarly journals Spin accumulation in disordered topological insulator ultrathin films

2017 ◽  
Vol 122 (7) ◽  
pp. 073903 ◽  
Author(s):  
Zhuo Bin Siu ◽  
Cong Son Ho ◽  
Seng Ghee Tan ◽  
Mansoor B. A. Jalil
Keyword(s):  
Topological Insulator ◽  
Ultrathin Films ◽  
Spin Accumulation

Epitaxial growth manner and structure of superconducting oxide films

1990 ◽  
Vol 48 (4) ◽  
pp. 2-3
Author(s):  
Yoshichika Bando ◽  
Takahito Terashima ◽  
Kenji Iijima ◽  
Kazunuki Yamamoto ◽  
Kazuto Hirata ◽  
...  
Keyword(s):  
Ultrathin Films ◽  
Film Surface ◽  
High Energy ◽  
Epitaxial Films ◽  
Layer By Layer ◽  
Initial Growth ◽  
In Situ Growth ◽  
High Quality ◽  
Activated Reactive Evaporation

The high quality thin films of high-Tc superconducting oxide are necessary for elucidating the superconducting mechanism and for device application. The recent trend in the preparation of high-Tc films has been toward “in-situ” growth of the superconducting phase at relatively low temperatures. The purpose of “in-situ” growth is to attain surface smoothness suitable for fabricating film devices but also to obtain high quality film. We present the investigation on the initial growth manner of YBCO by in-situ reflective high energy electron diffraction (RHEED) technique and on the structural and superconducting properties of the resulting ultrathin films below 100Å. The epitaxial films have been grown on (100) plane of MgO and SrTiO, heated below 650°C by activated reactive evaporation. The in-situ RHEED observation and the intensity measurement was carried out during deposition of YBCO on the substrate at 650°C. The deposition rate was 0.8Å/s. Fig. 1 shows the RHEED patterns at every stage of deposition of YBCO on MgO(100). All the patterns exhibit the sharp streaks, indicating that the film surface is atomically smooth and the growth manner is layer-by-layer.

Second order interference in two photon absorption

1996 ◽  
Vol 43 (9) ◽  
pp. 1765-1771 ◽  
Author(s):  
M. W. HAMILTON and D. S. ELLIOTT
Keyword(s):  
Second Order ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon
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