scholarly journals Dynamical density response and collective modes of topological-insulator ultrathin films

2020 ◽  
Vol 101 (11) ◽  
Author(s):  
Moslem Mir ◽  
Saeed H. Abedinpour
Keyword(s):  
Topological Insulator ◽  
Ultrathin Films ◽  
Collective Modes ◽  
Density Response

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

scholarly journals Density response and collective modes of semiholographic non-Fermi liquids

2017 ◽  
Vol 96 (10) ◽  
Author(s):  
Benoit Douçot ◽  
Christian Ecker ◽  
Ayan Mukhopadhyay ◽  
Giuseppe Policastro
Keyword(s):  
Collective Modes ◽  
Fermi Liquids ◽  
Density Response

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

Density waves in disk galaxies

1967 ◽  
Vol 31 ◽  
pp. 313-317 ◽  
Author(s):  
C. C. Lin ◽  
F. H. Shu
Keyword(s):  
Mathematical Analysis ◽  
Spiral Structure ◽  
Stellar System ◽  
Collective Modes ◽  
Disk Galaxies ◽  
Spiral Pattern ◽  
Density Waves ◽  
The Galaxy ◽  
Detailed Mathematical Analysis

Density waves in the nature of those proposed by B. Lindblad are described by detailed mathematical analysis of collective modes in a disk-like stellar system. The treatment is centered around a hypothesis of quasi-stationary spiral structure. We examine (a) the mechanism for the maintenance of this spiral pattern, and (b) its consequences on the observable features of the galaxy.

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.

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