# Model GW study of the late transition metal monoxides

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A short introduction to the complex phenomena encountered in transition metal oxides with either charge or orbital or joint charge-and-orbital order, usually accompanied by magnetic order, is presented. It is argued that all the types of above ordered phases in these oxides follow from strong...

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We review recent work on the properties of a d-wave superconducting state in which strong Coulomb interactions suppress double occupancy. We find that pairing and phase coherence show qualitatively different trends as a function of doping: the pairing scale decreases monotonically with hole...

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In the framework of the adiabatic approximation for a subsystem of nuclei with the average distance between them significantly exceeding the dimensions of the initial atom, we consider a nonrelativistic Coulomb system consisting of electrons and nuclei of one type for the temperature range where...

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The violated commutation condition between the total shell model Hamiltonian and Gamow-Teller operator (GT) has been restored by Pyatov method (PM). The considered nuclear model Hamiltonian in PM includes the separable GT residual interaction in ph and pp channels and is differentiated from the...

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- Quantal two-center Coulomb problem treated by means of the phase-integral method. III. Quantization conditions in the general case expressed in terms of complete elliptic integrals. Numerical illustration. Athavan, N.; Lakshmanan, M.; Fro¨man, N. // Journal of Mathematical Physics;Nov2001, Vol. 42 Issue 11, p5096
In this paper we take up the quantal two-center problem where the Coulomb centers have arbitrary positive charges. In analogy with the symmetric case, treated in the second paper of this series, we use the knowledge on the quasiclassical dynamics to express the contour integrals in the first-...

- Quantal two-center Coulomb problem treated by means of the phase-integral method. II. Quantization conditions in the symmetric case expressed in terms of complete elliptic integrals. Numerical illustration. Athavan, N.; Lakshmanan, M.; Fro¨man, N. // Journal of Mathematical Physics;Nov2001, Vol. 42 Issue 11, p5077
The contour integrals, occurring in the arbitrary-order phase-integral quantization conditions given in a previous paper, are in the first- and third-order approximations expressed in terms of complete elliptic integrals in the case that the charges of the Coulomb centers are equal. The...

- Quantal two-center Coulomb problem treated by means of the phase-integral method. I. General theory. Athavan, N.; Fro¨man, P. O.; Fro¨man, N.; Lakshmanan, M. // Journal of Mathematical Physics;Nov2001, Vol. 42 Issue 11, p5051
The present paper concerns the derivation of phase-integral quantization conditions for the two-center Coulomb problem under the assumption that the two Coulomb centers are fixed. With this restriction we treat the general two-center Coulomb problem according to the phase-integral method, in...

- Quasiparticle band structures of BaO and BaS. Lv, Tieyu; Chen, Deyan; Huang, Meichun // Journal of Applied Physics;10/15/2006, Vol. 100 Issue 8, p086103
We calculate the band structures of BaO and BaS using the local density approximation and the GW approximation (GWA). The Ba 4d states are treated as valence states. We find that BaO is an indirect band-gap semiconductor and BaS is a direct band-gap semiconductor. The results show that the band...