TITLE

Solubility of nitrogen and phosphorus in 4H-SiC: A theoretical study

AUTHOR(S)
Bockstedte, Michel; Mattausch, Alexander; Pankratov, Oleg
PUB. DATE
July 2004
SOURCE
Applied Physics Letters;7/5/2004, Vol. 85 Issue 1, p58
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The n-type dopants phosphorus and nitrogen, and their complexes with intrinsic point defects are investigated in 4H-SiC by first-principles theory. The solubility and electrical activation of the dopants in thermodynamic equilibrium are calculated. For nitrogen, a saturation of the electrical activation above a certain critical concentration is found that is driven by a preferential incorporation of nitrogen into electrically passive nitrogen-vacancy complexes. This explains the observations of recent experiments. An almost complete phosphorus activation is found up to the solubility limit. We suggest that the low phosphorus doping achieved by sublimation growth is related to the growth kinetics.
ACCESSION #
13605588

 

Related Articles

  • Nitrogen vacancies at InN [formula] surfaces: A theoretical study. Terentjevs, A.; Catellani, A.; Cicero, G. // Applied Physics Letters;4/26/2010, Vol. 96 Issue 17, p171901 

    We present an ab initio atomistic study of the effects of nitrogen vacancies both in InN bulk and at [formula] nonpolar surface and confirm that these defects act as n-type impurities. Based on the dependence of the vacancy formation energy on the distance from the surface, we predict that at...

  • thermodynamic equilibrium.  // Hutchinson Dictionary of Scientific Biography;2005, p1 

    Condition of a system where no heat flows between its component parts.

  • equilibrium constant.  // Hutchinson Dictionary of Scientific Biography;2005, p1 

    Numerical value that expresses the position of a chemical equilibrium at a given temperature and pressure. It is given by the product of the concentrations of the products divided by the product of the concentrations of the reactants.

  • Temperature of systems out of thermodynamic equilibrium. Garden, J.-L.; Richard, J.; Guillou, H. // Journal of Chemical Physics;7/28/2008, Vol. 129 Issue 4, p044508 

    Two phenomenological approaches are currently used in the study of the vitreous state. One is based on the concept of fictive temperature introduced by Tool [J. Res. Natl. Bur. Stand. 34, 199 (1945)] and recently revisited by Nieuwenhuizen [Phys. Rev. Lett. 80, 5580 (1998)]. The other is based...

  • Thermodynamics of oxygen solutions in the molten Ni-Co system. Dashevskii, V.; Aleksandrov, A.; Leont'ev, L. // Doklady Physical Chemistry;Nov2014, Vol. 459 Issue 1, p181 

    The article discusses a study on the thermodynamics of oxygen solutions in the molten Ni―Co system. It determines the composition of the oxide phase and evaluates the equilibrium oxygen concentrations in the molten Ni―Co system in the entire range of alloy compositions. Graphical...

  • Two-Temperature Two-Dimensional Non Chemical Equilibrium Modeling of Ar–CO2–H2 Induction Thermal Plasmas at Atmospheric Pressure. Al-Mamun, Sharif Abdullah; Tanaka, Yasunori; Uesugi, Yoshihiko // Plasma Chemistry & Plasma Processing;Feb2010, Vol. 30 Issue 1, p141 

    Here the authors developed a two-dimensional two-temperature chemical non-equilibrium (2T-NCE) model of Ar–CO2–H2 inductively coupled thermal plasmas (ICTP) around atmospheric pressure (760 torr). Assuming 22 different particles in this model and by solving mass conservation...

  • On thermodynamic equilibrium of nonextensive systems. Zaripov, R. G. // Technical Physics;Nov2006, Vol. 51 Issue 11, p1393 

    The law of energy composition is defined, and the thermodynamic equilibrium condition of nonextensive systems described by the Havrda-Charvat-Daroczy entropy is considered. A statistic criterion for equilibrium stability is formulated. Equations for the equilibrium distribution and density...

  • Generation of maximally entangled atom pairs in driven dissipative cavity QED systems. Casagrande, F.; Lulli, A. // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Apr2008, Vol. 47 Issue 1, p165 

    We investigate the entanglement of an open tripartite system where a cavity field mode in thermal equilibrium is off-resonantly coupled with two atoms that are simultaneously driven by a resonant coherent field. For moderately detuned atom-field coupling and strong atomic driving we show the...

  • Applicability Limits of Calculation Methods for Estimating the Enthalpy of Vaporization of Organophosphorus Compounds. Sagadeev, E. V.; Safina, Yu. G.; Sopin, V. F.; Cherkasov, R. A. // Russian Journal of General Chemistry;Nov2003, Vol. 73 Issue 11, p1702 

    Quantitative relationships used today for calculating the enthalpies of vaporization of organophosphorus compounds are analyzed. The parameters of equations used in these calculations largely depend on specific structural features and are common for closely related compounds only. With various...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics