Thermodynamic Functions of Fe3B Borides

Thermodynamic stabilities of ternary metal borides: An ab initio guide for synthesizing layered superconductors

Aleksey N. Kolmogorov,1 Matteo Calandra,2 and Stefano Curtarolo3 1Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom 2Institut de Mineralogie et de Physique des Milieux Condensés, case 115, 4 place Jussieu, 75252 Paris Cedex 05, France 3Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, USA Received 2...

Borides, Silicides and Phosphicles

This paper reviews some recent studies of the borides, silicides and phosphides of the platinum metals. These phases, especially those with a high metal content, have very similar properties. After some general information on the binary systems, brief comments are made on the preparation and properties of the intermediate phases while some features of their crystal chemistry are presented in mo...

Thermodynamic Systems and State Functions

Thermodynamic Green functions in theory of superconductivity

A general theory of superconductivity is formulated within the thermodynamic Green function method for various types of pairing mediated by phonons, spin fluctuations, and strong Coulomb correlations in the Hubbard and t-J models. A rigorous Dyson equation for matrix Green functions is derived in terms of a self-energy as a many-particle Green function. By applying the noncrossing approximation...

Thermodynamic functions of harmonic Coulomb crystals.

Phonon frequency moments and thermodynamic functions (electrostatic and vibrational parts of the free energy, internal energy, and heat capacity) are calculated for bcc and fcc Coulomb crystals in the harmonic approximation with a fractional accuracy < or equivalent to 10(-5). Temperature dependence of thermodynamic functions is fitted by analytical formulas with an accuracy of a few parts in 1...