Zobrazeno 1 - 10 of 119 pro vyhledávání: '"D. D. Koelling"'
1
On the efficient solution of the relativistic APW secular equation for both eigenvalues and eigenvectors
Autor: D. D. Koelling
Publikováno v: International Journal of Quantum Chemistry. 8:473-481
From international symposium on atomic, molecular, solidstate theory, and quantum statistics: Sanibel Island, Florida, USA (20 Jan 1974). The special problems introduced into the solution of the secular equation by the inclusion of relativistic effec
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::431dfdf4eeb3dde8f99a8155cf4e65e0
https://doi.org/10.1002/qua.560080851
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2
Long-period oscillation in the magnetic coupling through chromium in a magnetic multilayer: Bulk issues
Autor: D. D. Koelling
Publikováno v: Physical Review B. 59:6351-6367
The long period oscillation of magnetic coupling through Cr as the spacer layer of especially Fe/Cr magnetic multilayers is examined. It is shown that a reasonable empirical adjustment of the d-band position does bring calipers on the N-centered elli
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4e46058dfd5d646e96a45e21b16d9667
https://doi.org/10.1103/physrevb.59.6351
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3
Electronic structure studies of YBa2Cu3Ox(6.2≤×≤6.9) using angle-resolved photoemission
Autor: R. Liu, D. D. Koelling, A. J. Arko, B. W. Veal, C. G. Olson, Arvydas P. Paulikas, J.W. Downey, R. Blythe, John J. Joyce, H. Shi
Publikováno v: Surface Science Reports. 19:121-142
Using high-resolution angle-resolved photoemission, the electronic structure of YBa 2 Cu 3 O x is examined when oxygen stoichiometries are varied in the range 6.2≤×≤6.9. Detailed measurements of the Fermi surface for YBa 2 Cu 3 O 6.9 are present
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c9dfd63db1ccc0d79a2d5e8e08a8618b
https://doi.org/10.1016/0167-5729(93)90008-d
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4
Effect of semicore banding on heavy-alkali-metal lattice constants: Corrections to the frozen-core approximation
Autor: D. D. Koelling, Roy Benedek, Lin H. Yang, Arthur P. Smith
Publikováno v: Physical Review B. 47:16101-16106
Equilibrium lattice constants and bulk moduli of the heavy alkali metals K, Rb, and Cs were calculated using the Troullier-Martins pseudopotentials and plane-wave basis functions. The treatment of the outermost p-shell electrons as Bloch states yield
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5adfcb1f3fed390a767c9af7cd2e8b16
https://doi.org/10.1103/physrevb.47.16101
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6
Quasiparticle bands of the two-dimensional Hubbard model
Autor: D. D. Koelling, A. J. Fedro, B. N. Harmon, Samuel P. Bowen, Tsan-Chuen Leung, Yu Zhou, S. K. Sinha
Publikováno v: Physical Review B. 44:10291-10295
We present a mean-field calculation of the two-dimensional single-band Hubbard model based on a Mori-projection-operator formalism. Various physical properties including the energy, effective hopping matrix element, local moment, momentum distributio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7a7c5df5187a2fa9157f0207eb4facf
https://doi.org/10.1103/physrevb.44.10291
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7
f-Electron systems: pushing band theory
Autor: D. D. Koelling
Publikováno v: Physica B: Condensed Matter. 172:117-123
The f-electron orbitals have always been the “incomplete atomic shells acting as local moments, and weakly interacting with the remaining electronic structure” in the minds of most people. So examining them using a band theory where one views the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1bf5931628fd43f8a3dc75e9f9a4e428
https://doi.org/10.1016/0921-4526(91)90423-c
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8
Oscillation period of the interlayer coupling for epitaxial Fe/Cr1−xVx(100) and (211) superlattices
Autor: C. H. Sowers, S. D. Bader, J. S. Jiang, Chun-Yeol You, A. Inomata, D. D. Koelling
Publikováno v: Scopus-Elsevier
The microscopic origin of the 18 A period in the oscillatory interlayer exchange coupling of Fe/Cr(100) and (211) superlattices is investigated by alloying the Cr spacer with V to alter its Fermi surface. The addition of V increases or decreases in s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3308de1c96465a3bfabd2af7e69254e
https://doi.org/10.1063/1.369904
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9
Electron Spectroscopy of Heavy-Fermion Materials
Autor: N. E. Christensen, Ole Krogh Andersen, Zhi-Xun Shen, M. B. Maple, W. P. Ellis, Bradford B. Pate, L. Z. Liu, D. D. Koelling, Olle Gunnarsson, J.-S. Kang, I. Lindau, Milton S. Torikachvili, J. W. Allen, J. J. Yeh
Publikováno v: Physica Scripta. :232-238
The novel properties of heavy-fermion materials involve rare earth 4f electrons or actinide 5f electrons. For the 4f electrons the spectrum measured in photoemission and bremsstrahlung isochromat spectroscopies is dominated by single-site energetics
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::de58d6d5e96dee1dc1b0c0b97caea166
https://doi.org/10.1088/0031-8949/1990/t31/032
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10
Resonant photoemission studies of the magnetic-nonmagnetic U(Sn,In)3 system
Autor: C. L. Lin, L.W. Zhou, W. Gudat, D. D. Koelling, D. D. Sarma, S. Krummacher, J. E. Crow
Publikováno v: Physica B: Condensed Matter. :622-624
Results of 5d-5f resonant photoemission studies on the related series of uranium intermetallic compounds, U(SnxIn1−x)3 for x = 1.0, 0.5 and 0.0 are presented. Various features seen in the spectra are analyzed in terms of calculated partial densitie
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e4ce698cb196a052d2d4d5bb9a63359e
https://doi.org/10.1016/0921-4526(94)91925-9
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