Novel plastic strain‐relaxation mode in highly mismatched III‐V layers induced by two‐dimensional epitaxial growth

1995 ◽  
Vol 66 (17) ◽  
pp. 2265-2267 ◽  
Author(s):  
A. Trampert ◽  
E. Tournié ◽  
K. H. Ploog
MRS Advances ◽  
2016 ◽  
Vol 1 (50) ◽  
pp. 3403-3408
Author(s):  
Fabio Isa ◽  
Arik Jung ◽  
Marco Salvalaglio ◽  
Yadira Arroyo Rojas Dasilva ◽  
Mojmír Meduňa ◽  
...  

ABSTRACT We present a new concept applicable to the epitaxial growth of dislocation-free semiconductor structures on a mismatched substrate with a thickness far exceeding the conventional critical thickness for plastic strain relaxation. This innovative concept is based on the out-of-equilibrium growth of compositionally graded alloys on deeply patterned substrates. We obtain space-filling arrays of individual crystals several micrometers wide in which the mechanism of strain relaxation is fundamentally changed from plastic to elastic. The complete absence of dislocations at and near the heterointerface may pave the way to realize CMOS integrated SiGe X-ray detectors.


Author(s):  
Xiaoqiu Guo ◽  
Ruixin Yu ◽  
Jingwen Jiang ◽  
Zhuang Ma ◽  
Xiuwen Zhang

Topological insulation is widely predicted in two-dimensional (2D) materials realized by epitaxial growth or van der Waals (vdW) exfoliation. Such 2D topological insulators (TI’s) host many interesting physical properties such...


2014 ◽  
Vol 9 (12) ◽  
pp. 1024-1030 ◽  
Author(s):  
Xidong Duan ◽  
Chen Wang ◽  
Jonathan C. Shaw ◽  
Rui Cheng ◽  
Yu Chen ◽  
...  

SmartMat ◽  
2021 ◽  
Author(s):  
Yihe Wang ◽  
Shuo Sun ◽  
Jialin Zhang ◽  
Yu Li Huang ◽  
Wei Chen

2001 ◽  
Vol 696 ◽  
Author(s):  
Stéphane Andrieu ◽  
Pascal Turban ◽  
Laurent Lapena ◽  
Pierre Muller

AbstractThe analysis of RHEED diffraction peaks during two-dimensional (2D) pseudomorphic epitaxial growth leads to the well known RHEED oscillations but also to diffraction peak width and in-plane lattice spacing oscillations. These behaviors are evidenced in several metallic A/B systems in this paper. As in-plane lattice spacing oscillations are assumed to be due to elastic relaxation at the edge of the 2D Islands, we try to correlate the amplitude of the detected effect with the misfit. The width oscillations are assumed to be due to the scattering coming from islands. We actually show that the full width at half maximum (FWHM) at half coverage allows us to get a correct estimation of the nucleation density. We thus show experimentally that the in-plane lattice spacing oscillations amplitude depends on the nucleation density determined using FWHM measurements. Finally, a theoretical justification allows us to show that this amplitude also depends on the Young modulus ratio of both B and A layers.


2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Hossein Taghinejad ◽  
Ali A. Eftekhar ◽  
Philip M. Campbell ◽  
Brian Beatty ◽  
Mohammad Taghinejad ◽  
...  

2019 ◽  
Vol 115 (14) ◽  
pp. 141601 ◽  
Author(s):  
Haifei Wu ◽  
Jiahao Tang ◽  
Qifeng Liang ◽  
Biyun Shi ◽  
Yixiao Niu ◽  
...  

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