scholarly journals SnBrP‐A SnIP‐type representative in the Sn−Br−P system

Felix Reiter ◽  
Markus Pielmeier ◽  
Anna Vogel ◽  
Christian Jandl ◽  
Milivoj Plodinec ◽  
F. A. Ponce ◽  
R. L. Thornton ◽  
G. B. Anderson

The InGaAlP quaternary system allows the production of semiconductor lasers emitting light in the visible range of the spectrum. Recent advances in the visible semiconductor diode laser art have established the viability of diode structures with emission wavelengths comparable to the He-Ne gas laser. There has been much interest in the growth of wide bandgap quaternary thin films on GaAs, a substrate most commonly used in optoelectronic applications. There is particular interest in compositions which are lattice matched to GaAs, thus avoiding misfit dislocations which can be detrimental to the lifetime of these materials. As observed in Figure 1, the (AlxGa1-x)0.5In0.5P system has a very close lattice match to GaAs and is favored for these applications.In this work, we have studied the effect of silicon diffusion in GaAs/InGaAlP structures. Silicon diffusion in III-V semiconductor alloys has been found to have an disordering effect which is associated with removal of fine structures introduced during growth. Due to the variety of species available for interdiffusion, the disordering effect of silicon can have severe consequences on the lattice match at GaAs/InGaAlP interfaces.

M. Bilal ◽  
M. Younis ◽  
H. Rezazadeh ◽  
T. A. Sulaiman ◽  
A. Yusuf ◽  

2020 ◽  
K. Bhuvaneswari ◽  
S. Kuberal ◽  
T. Kalyani

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 549
Xiu Yin ◽  
Xiyu Liu ◽  
Minghe Sun ◽  
Qianqian Ren

A novel variant of NSN P systems, called numerical spiking neural P systems with a variable consumption strategy (NSNVC P systems), is proposed. Like the spiking rules consuming spikes in spiking neural P systems, NSNVC P systems introduce a variable consumption strategy by modifying the form of the production functions used in NSN P systems. Similar to the delay feature of the spiking rules, NSNVC P systems introduce a postponement feature into the production functions. The execution of the production functions in NSNVC P systems is controlled by two, i.e., polarization and threshold, conditions. Multiple synaptic channels are used to transmit the charges and the production values in NSNVC P systems. The proposed NSNVC P systems are a type of distributed parallel computing models with a directed graphical structure. The Turing universality of the proposed NSNVC P systems is proved as number generating/accepting devices. Detailed descriptions are provided for NSNVC P systems as number generating/accepting devices. In addition, a universal NSNVC P system with 66 neurons is constructed as a function computing device.

Biosystems ◽  
2008 ◽  
Vol 91 (3) ◽  
pp. 558-571 ◽  
Antonio Vitale ◽  
Giancarlo Mauri ◽  
Claudio Zandron
P System ◽  

2011 ◽  
Vol 186 (4) ◽  
pp. 758-760 ◽  
Arkadii Tarasevych ◽  
Alexander Rozhenko ◽  
Gerd-Volker Röschenthaler ◽  
Igor Shevchenko

2000 ◽  
Vol 644 ◽  
Evgenia Pekarskaya ◽  
Jan Schroers ◽  
William L. Johnson

AbstractCrystallization of the Pd43Ni10Cu27P20 amorphous alloy during isothermal annealing in the undercooled temperature region is studied by electron microscopy and diffrential scanning calorimetry (DSC). It is established that different crystallization processes take place above and below the nose temperature of the time-temperature-transformation (TTT) diagram. Detailed analysis of the microstructural evolution at the early stages of the crystallization is performed. In addition, the stable phases in the Pd-Ni-Cu-P system are identified.

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