Ab initio CASSCF study of the electronic structure of the transition-metal alkylidene-like complexes Mo-M'H2 (M' = carbon, silicon, germanium and tin)

1992 ◽  
Vol 114 (25) ◽  
pp. 10019-10024 ◽  
Author(s):  
Antonio Marquez ◽  
Javier Fernandez Sanz
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Ab Initio ◽  
Silicon Germanium

Transition-metal solvated-electron precursors: diffuse and 3d electrons in V(NH3)0,±6

2019 ◽  
Vol 21 (13) ◽  
pp. 7090-7097 ◽  
Author(s):  
Nuno M. S. Almeida ◽  
Filip Pawłowski ◽  
Joseph Vincent Ortiz ◽  
Evangelos Miliordos
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Ab Initio ◽  
Electronic States ◽  
Electronic Structure Theory ◽  
Structure Theory ◽  
Solvated Electron ◽  
Excited Electronic States

Ground and excited electronic states of V(NH3)0,±6 complexes, investigated with ab initio electronic structure theory, consist of a V(NH3)62+ core with up to three electrons distributed over its periphery.

Electronic structure and spin-orbit coupling in ternary transition metal chalcogenides Cu2TlX 2 (X=Se, Te)

2021 ◽  
Author(s):  
Na Qin ◽  
Xian Du ◽  
Yangyang Lv ◽  
Lu Kang ◽  
Zhongxu Yin ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
Ab Initio ◽  
Band Gap ◽  
Electronic Properties ◽  
Orbit Coupling ◽  
Metal Chalcogenides ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Transition Metal Chalcogenides

Abstract Ternary transition metal chalcogenides provide a rich platform to search and study intriguing electronic properties. Using Angle-Resolved Photoemission Spectroscopy and ab initio calculation, we investigate the electronic structure of Cu2TlX 2 (X = Se, Te), ternary transition metal chalcogenides with quasi-two-dimensional crystal structure. The band dispersions near the Fermi level are mainly contributed by the Te/Se p orbitals. According to our ab-initio calculation, the electronic structure changes from a semiconductor with indirect band gap in Cu2TlSe2 to a semimetal in Cu2TlTe2, suggesting a band-gap tunability with the composition of Se and Te. By comparing ARPES experimental data with the calculated results, we identify strong modulation of the band structure by spin-orbit coupling in the compounds. Our results provide a ternary platform to study and engineer the electronic properties of transition metal chalcogenides related to large spin-orbit coupling.

Sign in / Sign up

Export Citation Format

Share Document