Spin-orbit coupling in low-dimensional gold

0318095 - ÚFM 2009 RIV DE eng J - Článek v odborném periodiku
Hüger, E. - Zelený, Martin - Káňa, Tomáš - Šob, Mojmír
Spin-orbit coupling in low-dimensional gold.
[Spin-orbitální vazba v nízkorozměrném zlatě.]
Physica Status Solidi. Roč. 2, č. 3 (2008), s. 117-119. ISSN 1862-6254. E-ISSN 1862-6270
Grant CEP: GA ČR GD106/05/H008; GA MŠMT OC 147; GA AV ČR IAA1041302
Výzkumný záměr: CEZ:AV0Z20410507
Klíčová slova: Chemisorption/physisorption * Electron spectroscopy * Surface electronic density of states
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 2.147, rok: 2008

We present experimental and theoretical evidence of the role played by the spin–orbit coupling in the electronic structure of a pseudomorphic Au monolayer on Nb(001) substrate. The bands found with the help of the angle-resolved ultraviolet photoelectron spectroscopy (ARUPS) are compared with those obtained from ab initio self-consistent calculations by the VASP and WIEN2k codes. The slab calculations are performed including geometric relaxation and using both the generalized-gradient (GGA) and local-density (LDA) approximations for the exchange–correlation energy. The dispersions and energy positions of the calculated bands agree with the experimentally determined band structure only if the LDA is used and the spin–orbit coupling is included. Therefore, both the structure relaxation and spin–orbit coupling areessential in understanding the electronic structure of the Au/Nb(001) system.

Práce presentuje experimentální a teoretická data dokumentující roli spin-orbitální vazby v elektronové struktuře pseudomorfní monovrstvy zlata na substrátu Nb(001).
Trvalý link: http://hdl.handle.net/11104/0167581