115 citations · 307 across the 6 of their papers we have counts for
6 papers
High-density two-dimensional electron system induced by oxygen vacancies in ZnO
T. C. Rödel, J. Dai, F. Fortuna +10
We realize a two-dimensional electron system (2DES) in ZnO by simply depositing pure aluminum on its surface in ultra-high vacuum, and characterize its electronic structure using a…
Observation of Dirac-like energy band and ring-torus Fermi surface associated with the nodal line in topological insulator CaAgAs
D. Takane, K. Nakayama, S. Souma +10
One of key challenges in current material research is to search for new topological materials with inverted bulk-band structure. In topological insulators, the band inversion cause…
Three-dimensional band structure of LaSb and CeSb:Absence of band inversion
H. Oinuma, S. Souma, D. Takane +9
We have performed angle-resolved photoemission spectroscopy (ARPES) of LaSb and CeSb, a candidate of topological insulator. Using soft-x-ray photons, we have accurately determined…
Emergence of quantum critical behavior in metallic quantum-well states of strongly correlated oxides
Masaki Kobayashi, Kohei Yoshimatsu, Taichi Mitsuhashi +7
Controlling quantum critical phenomena in strongly correlated electron systems, which emerge in the neighborhood of a quantum phase transition, is a major challenge in modern conde…
Semimetallic "Electride Bands" Derived from Interlayer Electrons in Quasi-Two-Dimensional Electride YC
Koji Horiba, Ryu Yukawa, Taichi Mitsuhashi +10
Two-dimensional (2D) electrides are a new concept material in which anionic electrons are confined in the interlayer space between positively charged layers. We have performed angl…
Hubbard band or oxygen vacancy states in the correlated electron metal SrVO?
S. Backes, T. C. Rödel, F. Fortuna +19
We study the effect of oxygen vacancies on the electronic structure of the model strongly correlated metal SrVO. By means of angle-resolved photoemission (ARPES) synchrotron ex…