6 papers
Electronic topological transition of 2D boron by the ion exchange reaction
Xiaoni Zhang, Yuki Tsujikawa, Ikuma Tateishi +8
We systematically investigated electronic evolutions of non-symmorphic borophene with chemical environments that were realized by the ion exchange method. Electronic structures can…
Nodal-line semimetal HMTSF-TCNQ: Anomalous orbital diamagnetism and charge density wave
S. Ozaki, I. Tateishi, H. Matsuura +2
This study investigates the electronic states and physical quantities of an organic charge-transfer complex HMTSF-TCNQ, which undergoes a charge-density-wave (CDW) phase transition…
Characteristic singular behaviors of nodal line materials emerging in orbital magnetic susceptibility and Hall conductivity
Ikuma Tateishi, Viktor Könye, Hiroyasu Matsuura +1
The bulk properties of nodal line materials have been an important research topic in recent years. In this paper, we study the orbital magnetic susceptibility and the Hall conducti…
Nodal lines and mapping to mirror Chern numbers in CaAs family
Ikuma Tateishi
We study topological properties of materials in the CaAs family without spin-orbit coupling (SOC) by combining the first-principles calculation and a tight-binding model calcul…
Mapping rules from nodal line semimetal to topological crystalline insulator in face centered cubic lattice
Ikuma Tateishi
We study what kind of topological crystalline insulator phase emerges from nodal line semimetal phases in the face-centered cubic system which is not indicated by topological indic…
Face centered cubic SnSe as a trivial Dirac nodal line material
Ikuma Tateishi, Hiroyasu Matsuura
The presence of a Dirac nodal line in a time-reversal and inversion symmetric system is dictated by the index when spin-orbit interaction is absent. In a first princ…