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1.

Electronic fine structure in the electron-hole plasma in SrB6

Rodriguez CO; Weht R; Pickett WE.

Phys Rev Lett ; 84(17): 3903-6, 2000 Apr 24.

Artículo en Inglés | MEDLINE | ID: mdl-11019235

RESUMEN

Electron-hole mixing-induced fine structure in alkaline earth hexaborides leads to lower energy (temperature) scales, and thus a stronger tendency toward an excitonic instability than in their doped counterparts (viz. Ca1-xLaxB6, x approximately 0.005), which are high-Curie-temperature, small-moment ferromagnets. Comparison of Fermi surfaces and spectral distributions with de Haas-van Alphen, optical, transport, and tunneling data indicates that SrB6 remains a fermionic semimetal down to (at least) 5 K, rather than forming an excitonic condensate. For the doped system the Curie temperature is higher than the degeneracy temperature.

2.

Local relaxations and electric-field gradient at the Cd site in heavily doped Si:Cd.

Casali RA; Caravaca MA; Rodriguez CO.

Phys Rev B Condens Matter ; 54(23): 16701-16705, 1996 Dec 15.

Artículo en Inglés | MEDLINE | ID: mdl-9985798

3.

Pressure strengthening: A way to multimegabar static pressures.

Christensen NE; Ruoff AL; Rodriguez CO.

Phys Rev B Condens Matter ; 52(13): 9121-9124, 1995 Oct 01.

Artículo en Inglés | MEDLINE | ID: mdl-9979939

4.

Optical phonon modes in GaN and AlN.

Gorczyca I; Christensen NE; Peltzer y Blancá EL; Rodriguez CO.

Phys Rev B Condens Matter ; 51(17): 11936-11939, 1995 May 01.

Artículo en Inglés | MEDLINE | ID: mdl-9977937

5.

Momentum dependence of the linewidth of Raman-active phonons in the normal state of YBa2Cu3O7.

Jepsen O; Mazin II; Liechtenstein AI; Andersen OK; Rodriguez CO.

Phys Rev B Condens Matter ; 51(6): 3961-3964, 1995 Feb 01.

Artículo en Inglés | MEDLINE | ID: mdl-9979226

6.

Displacive excitation of coherent phonons in YBa2Cu3O7.

Mazin II; Liechtenstein AI; Jepsen O; Andersen OK; Rodriguez CO.

Phys Rev B Condens Matter ; 49(13): 9210-9213, 1994 Apr 01.

Artículo en Inglés | MEDLINE | ID: mdl-10009709

7.

Structural properties and electronic structure of HgBa2CuO4: Detailed description of the Fermi surface.

Rodriguez CO.

Phys Rev B Condens Matter ; 49(2): 1200-1204, 1994 Jan 01.

Artículo en Inglés | MEDLINE | ID: mdl-10010427

8.

Calculated static and dynamic properties of beta -Sn and Sn-O compounds.

Peltzer y Blancá EL; Svane A; Christensen NE; Rodríguez CO; Cappannini OM; Moreno MS.

Phys Rev B Condens Matter ; 48(21): 15712-15718, 1993 Dec 01.

Artículo en Inglés | MEDLINE | ID: mdl-10008123

9.

Interatomic forces and atomic structure of grain boundaries in copper-bismuth alloys.

Yan M; Sob M; Luzzi DE; Vitek V; Ackland GJ; Methfessel M; Rodriguez CO.

Phys Rev B Condens Matter ; 47(10): 5571-5582, 1993 Mar 01.

Artículo en Inglés | MEDLINE | ID: mdl-10004502

10.

Pressure-induced phase transformations in alkali-metal hydrides calculated using an improved linear-muffin-tin-orbital-atomic-sphere-approximation energy scheme.

Rodriguez CO; Methfessel M.

Phys Rev B Condens Matter ; 45(1): 90-96, 1992 Jan 01.

Artículo en Inglés | MEDLINE | ID: mdl-10000156

11.

Structural phase diagram and electron-phonon interaction in Ba1-xKxBiO3.

Liechtenstein AI; Mazin II; Rodriguez CO; Jepsen O; Andersen OK; Methfessel M.

Phys Rev B Condens Matter ; 44(10): 5388-5391, 1991 Sep 01.

Artículo en Inglés | MEDLINE | ID: mdl-9998367

12.

Optical near-zone-center phonons and their interaction with electrons in YBa2Cu3O7: Results of the local-density approximation.

Rodriguez CO; Liechtenstein AI; Mazin II; Jepsen O; Andersen OK; Methfessel M.

Phys Rev B Condens Matter ; 42(4): 2692-2695, 1990 Aug 01.

Artículo en Inglés | MEDLINE | ID: mdl-9995752

13.

First-principles pseudopotential and full-potential linear muffin-tin-orbital calculation of anharmonic effects on the lattice-dynamical properties of AlP.

Rodriguez CO; Casali RA; Peltzer EL; Cappannini OM; Methfessel M.

Phys Rev B Condens Matter ; 40(6): 3975-3978, 1989 Aug 15.

Artículo en Inglés | MEDLINE | ID: mdl-9992371

14.

Fast full-potential calculations with a converged basis of atom-centered linear muffin-tin orbitals: Structural and dynamic properties of silicon.

Methfessel M; Rodriguez CO; Andersen OK.

Phys Rev B Condens Matter ; 40(3): 2009-2012, 1989 Jul 15.

Artículo en Inglés | MEDLINE | ID: mdl-9992074

15.

First-principles determination of the sublinear dependence of the direct &) on hydrostatic pressure.

Rodríguez CO; Peltzer y Blancá EL; Cappannini OM.

Phys Rev B Condens Matter ; 33(12): 8436-8440, 1986 Jun 15.

Artículo en Inglés | MEDLINE | ID: mdl-9938241

16.

Structural properties of tetrahedrally coordinated crystals from first-principles calculations of pressure and total energies.

Rodríguez CO; Kuz VA; Peltzer y Blancá EL; Cappannini OM.

Phys Rev B Condens Matter ; 31(8): 5327-5334, 1985 Apr 15.

Artículo en Inglés | MEDLINE | ID: mdl-9936497

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