63 citations · 238 across the 14 of their papers we have counts for
14 papers
Spin-polarized Josephson current induced by inhomogeneous altermagnetic interlayers
Wenjun Zhao, Yuri Fukaya, Pablo Burset +3
The pursuit of dissipationless spin supercurrents is a central theme in superconducting spintronics. We propose a field-free Josephson junction using an inhomogeneous altermagnetic…
Bogoliubov flat bands in twisted layered materials
Keiji Yada, Yuri Fukaya, Yukio Tanaka
Flat bands have attracted considerable interest in condensed matter physics because they provide a fertile platform for realizing strongly correlated and topological quantum phases…
-wave superconductivity and Josephson current in -wave unconventional magnet/-wave superconductor hybrid systems
Yuri Fukaya, Keiji Yada, Yukio Tanaka
We study the surface density of states in -wave unconventional magnet-spin-singlet -wave superconductor hybrid systems (-wave unconventional magnetic superconductors). Owi…
Crossed surface flat bands in three-dimensional superconducting altermagnets
Yuri Fukaya, Bo Lu, Keiji Yada +2
Superconducting altermagnets have proven to be a promising ground for emergent phenomena, but their study has involved two-dimensional systems. In this work, we investigate three-d…
Gate-tunable nonreciprocal thermoelectric effects on the surface states of topological insulators
Phillip Mercebach, Sun-Yong Hwang, Bo Lu +3
Thermoelectric devices at the nanoscale offer promising routes for on-chip refrigeration and waste-heat recovery, yet most semiconductor-based implementations suffer from limited t…
Engineering subgap states in superconductors by the symmetry of altermagnetism
Bo Lu, Phillip Mercebach, Pablo Burset +4
Combining superconducting and magnetic materials is a promising path to generate exotic interface subgap states. In this regard, altermagnetism is particularly interesting because…
The Josephson effect in Fibonacci superconductors
Ignacio Sardinero, Jorge Cayao, Keiji Yada +2
We theoretically investigate the Josephson effect between two proximized Fibonacci quasicrystals. A quasiperiodic modulation of the chemical potential on a superconducting substrat…
Tunneling conductance in superconducting junctions with -wave unconventional magnets breaking time-reversal symmetry
Yuri Fukaya, Keiji Yada, Yukio Tanaka
A new type of magnet called -wave unconventional magnet is proposed, stimulated by the discovery of altermagnet. We study the tunneling conductance of -wave unconventional ma…
Superconducting phenomena in systems with unconventional magnets
Yuri Fukaya, Bo Lu, Keiji Yada +2
In this work we review the recent advances on superconducting phenomena in junctions formed by superconductors and unconventional magnets. Conventional magnets, such as ferromagnet…
Orientation-dependent transport in junctions formed by -wave altermagnets and -wave superconductors
Wenjun Zhao, Yuri Fukaya, Pablo Burset +3
We investigate de Gennes-Saint-James states and Josephson effect in hybrid junctions based on -wave altermagnet and -wave superconductor. Even though these states are associa…
Classification of pair symmetries in superconductors with unconventional magnetism
Kazuki Maeda, Yuri Fukaya, Keiji Yada +3
We consider unconventional magnets with proximity-induced superconductivity and investigate the emergence of superconducting correlations by carrying out a full classification of a…
Josephson effect and odd-frequency pairing in superconducting junctions with unconventional magnets
Yuri Fukaya, Kazuki Maeda, Keiji Yada +3
We consider Josephson junctions formed by coupling two conventional superconductors via an unconventional magnet and investigate the formation of Andreev bound states, their impact…
Evaluation of Doppler shifts in -wave superconductor tunneling junctions
Takashi Sakamori, Kenki Matsuoka, Mitsuhiro Teshigawara +4
The energy levels of quasiparticles in superconductors experience Doppler shifts due to the influence of a finite current flow. The influence of the Doppler shift is particularly p…
Josephson junction induced by altermagnetism
Bo Lu, Kazuki Maeda, Hiroyuki Ito +2
We study the Josephson effect in a superconductor/altermagnet/superconductor (S/AM/S) junction. We find anomalous phenomena including - transition as well as multi-nodal curr…