11 papers
Emergent toroidal induction in a polar Weyl ferromagnet
Yuuri Suzuki, Yukako Fujishiro, Masataka Mogi +12
The paper demonstrates that a uniform polar Weyl ferromagnet can exhibit emergent electromagnetic induction via a Berry‑phase mechanism, where an alternating current drives spin‑or…
Carrier-density dependence of magnetotransport in correlated Dirac semimetal CaIrO
Rinsuke Yamada, Jun Fujioka, Minoru Kawamura +8
We report the carrier density dependence of the magnetotransport property in the correlated Dirac semimetal CaIrO. In the dilute carrier density region ( $\sim 2.2 \…
Epitaxial growth of topological insulator -Ag2Te thin films
Ayuki Takegawa, Kouya Imoto, Minoru Kawamura +2
We report epitaxial growth of -Ag2Te thin films by molecular beam epitaxy. -Ag2Te, recently identified as a topological insulator, was grown by depositing Ag on InP substra…
Non-Hermitian topological devices with Chern insulators
Kyrylo Ochkan, Michael Wissmann, Louis Veyrat +9
Multi-terminal topological devices are a new generation of electronic devices with quantized properties robust against imperfections. In magnetic topological insulators, dissipatio…
Two-dimensional superconducting diode effect in topological insulator/superconductor heterostructure
Soma Nagahama, Yuki Sato, Minoru Kawamura +7
The superconducting diode effect (SDE) is characterized by the nonreciprocity of Cooper-pair motion with respect to current direction. In three-dimensional (3D) materials, SDE resu…
Higher-order epitaxy: A pathway to suppressing structural instability and emergent superconductivity
Yuki Sato, Soma Nagahama, Shunsuke Kitou +11
Molecular beam epitaxy enables the growth of thin film materials with novel properties and functionalities. Typically, the lattice constants of films and substrates are designed to…