238 citations · 1.5k across the 36 of their papers we have counts for
17 papers · 1 filter
Molecular beam deposition of a new layered pnictide with distorted Sb square nets
M. Ohno, M. Uchida, Y. Nakazawa +6
While the family of layered pnictides ( : rare or alkaline earth metals, : transition metals, : Sb/Bi) can host Dirac dispersions based on Sb/Bi square nets, nea…
Quantum transport observed in films of magnetic topological semimetal EuSb
Mizuki Ohno, Masaki Uchida, Ryosuke Kurihara +10
We report fabrication of EuSb single-crystalline films and investigation of their quantum transport. First-principles calculations demonstrate that EuSb is a magnetic topol…
Ferromagnetic state above room temperature in a proximitized topological Dirac semimetal
Masaki Uchida, Takashi Koretsune, Shin Sato +6
We report an above-room-temperature ferromagnetic state realized in a proximitized Dirac semimetal, which is fabricated by growing typical Dirac semimetal CdAs films on a f…
Molecular beam epitaxy of three-dimensionally thick Dirac semimetal Cd3As2 films
Y. Nakazawa, M. Uchida, S. Nishihaya +4
Rapid progress of quantum transport study in topological Dirac semimetal, including observations of quantum Hall effect in two-dimensional (2D) CdAs s…
Gate-tuned quantum Hall states in Dirac semimetal (Cd1-xZnx)3As2
Shinichi Nishihaya, Masaki Uchida, Yusuke Nakazawa +4
The recent discovery of topological Dirac semimetals (DSM) has provoked intense curiosity not only on Weyl physics in solids, but also on topological phase transitions originating…
Structural characterisation of high-mobility Cd3As2 films crystallised on SrTiO3
Yusuke Nakazawa, Masaki Uchida, Shinichi Nishihaya +4
Cd3As2 has long been known as a high-mobility semiconductor. The recent finding of a topological semimetal state in this compound has demanded growth of epitaxial films with high c…
Quantum Hall states observed in thin films of Dirac semimetal Cd3As2
Masaki Uchida, Yusuke Nakazawa, Shinichi Nishihaya +9
A well known semiconductor Cd3As2 has reentered the spotlight due to its unique electronic structure and quantum transport phenomena as a topological Dirac semimetal. For elucidati…
Adsorption-controlled growth of La-doped BaSnO3 by molecular-beam epitaxy
Hanjong Paik, Zhen Chen, Edward Lochocki +14
Epitaxial La doped BaSnO3 films were grown in an adsorption controlled regime by molecular beam epitaxy, where the excess volatile SnOx desorbs from the film surface. A film grown…
Evolution of Insulator-Metal Phase Transitions in Epitaxial Tungsten Oxide Films during Electrolyte-Gating
Shinichi Nishihaya, Masaki Uchida, Yusuke Kozuka +2
An interface between an oxide and an electrolyte gives rise to various processes as exemplified by electrostatic charge accumulation/depletion and electrochemical reactions such as…
Epitaxially Stabilized Oxide Composed of Twisted Triangular-Lattice Layers
M. Uchida, K. Ohba, Y. Ohuchi +2
Layered oxides have been intensively studied due to their high designability for various electronic functions. Here we synthesize a new oxide as epitaxial thin film form by pulsed…
All-in-all-out magnetic domain wall conduction in pyrochlore iridate heterointerface
T. C. Fujita, M. Uchida, Y. Kozuka +4
Pyrochlore oxides possessing "all-in-all-out" spin ordering have attracted burgeoning interest as a rich ground of emergent states. This ordering has two distinct types of magnetic…
Effective Carrier Doping and Metallization in LaxSr2-x-yBayIrO4-delta Thin Films
M. Ito, M. Uchida, Y. Kozuka +2
We fabricate LaxSr2-x-yBayIrO4-delta thin films by pulsed laser deposition, in an effort to realize the effective carrier doping and metallization in the Sr2IrO4 system. We design…
All-in-all-out magnetic domain size in pyrochlore iridate thin films as probed by local magnetotransport
T. C. Fujita, M. Uchida, Y. Kozuka +4
Pyrochlore iridates have attracted growing attention because of a theoretical prediction of a possible topological semimetal phase originating from all-in-all-out spin ordering. Re…
Odd-parity magnetoresistance in pyrochlore iridate thin films with broken time-reversal symmetry
T. C. Fujita, Y. Kozuka, M. Uchida +3
A new class of materials termed topological insulators have been intensively investigated due to their unique Dirac surface state carrying dissipationless edge spin currents. Recen…
Field-direction control of the type of charge carriers in nonsymmorphic IrO2
M. Uchida, W. Sano, K. S. Takahashi +5
In the quest for switching of the charge carrier type in conductive materials, we focus on nonsymmorphic crystals, which are expected to have highly anisotropic folded Fermi surfac…
Topological Surface States and Superconductivity in [Tl](TlSn)Te Perovskites
K. E. Arpino, D. C. Wallace, Y. F. Nie +9
Materials with strong spin-orbit coupling have attracted attention following the prediction and subsequent discovery of strong two- and three-dimensional topological insulators in…
Bandwidth-disorder phase diagram of half doped layered manganites
R. Mathieu, M. Uchida, Y. Kaneko +8
Phase diagrams in the plane of (the average ionic radius, related to one-electron bandwidth ) and (the ionic radius variance, measuring the quenched disorder), or ``…