175 citations · 483 across the 25 of their papers we have counts for
26 papers
Finitistic dimensions of formal power series rings
Xiaolei Zhang, Weiheng Xia
We consider the big finitistic projective and flat dimensions of a commutative ring and of its formal power series ring. When the ring is Noetherian, both invariants increase by on…
EuIn2Sb2: epitaxially stabilized axion insulator candidate with strong spin-orbit coupling
Hsiang Lee, Shinichi Nishihaya, Markus Kriener +5
Eu triangular lattice layer compounds described by the general formula EuA2X2 have attracted growing attention due to a wide range of layered crystal structures and corresponding m…
Observation of in-plane anomalous Nernst effect
Tadashi Yoneda, Shinichi Nishihaya, Markus Kriener +7
The Nernst effect, which enables the conversion of a heat current into a transverse voltage under magnetic field or spin magnetization, holds significant promise for energy harvest…
Magnetic structure of EuZnSb single-crystal thin-film
Yu Wei Soh, Hsiang Lee, Eugen Weschke +4
Magnetic topological materials are a class of compounds which can host massless electrons controlled by the magnetic order. One such compound is EuZnSb, which has recently…
Magneto-cubic and magneto-linear dependence observed in an in-plane anomalous Hall magnet
Ayano Nakamura, Shinichi Nishihaya, Mitsuru Akaki +9
The Hall effect, particularly that arising from in-plane magnetic field, has recently emerged as a sensitive probe of quantum geometric properties in solids. Especially in trigonal…
Stark difference in the in-plane anomalous Hall response in Zintl compounds EuA2Sb2 (A = Zn, Cd) thin films
Hsiang Lee, Shinichi Nishihaya, Markus Kriener +5
Recent observation of the in-plane anomalous Hall effect in magnetic Weyl semimetal EuCd2Sb2 has drawn attention to out-of-plane orbital magnetization induced by an in-plane field…
Anomalous Hall effect in Dirac semimetal probed by in-plane magnetic field
Shinichi Nishihaya, Hiroaki Ishizuka, Yuki Deguchi +5
Intrinsic anomalous Hall effect (AHE) formulated by geometric properties of Bloch wavefunctions is a ubiquitous transport phenomenon not limited to magnetic systems but also allowe…
Spontaneous in-plane anomalous Hall response observed in a ferromagnetic oxide
Shinichi Nishihaya, Yuta Matsuki, Haruto Kaminakamura +3
Recent observation of anomalous Hall effect (AHE) induced by magnetic field or spin magnetization lying in the Hall deflection plane has sparked interest in diverse mechanisms for…
Distinct topological Hall responses in CeCu-type EuZn and EuCd films
Yuto Watanabe, Shinichi Nishihaya, Markus Kriener +2
Rare earth intermetallic compounds crystallized in AlB-type and its low-symmetry derivative CeCu-type structures potentially host diverse frustrated magnetic structures and…
Unconventional two-dimensional quantum oscillations in three-dimensional thick SrRuO films
Yuta Matsuki, Shinichi Nishihaya, Markus Kriener +3
SrRuO is a prototypical transition metal oxide which hosts rich physical properties including itinerant ferromagnetism, high conductivity, and intrinsic Hall effect originating…
Topological Hall effect enhanced at magnetic transition fields in a frustrated magnet EuCd
S. Nishihaya, Y. Watanabe, M. Kriener +2
Emergent magnetic fields exerted by topological spin textures of magnets lead to an additional Hall response of itinerant carriers called the topological Hall effect (THE). While T…
Observation of in-plane anomalous Hall effect associated with orbital magnetization
Ayano Nakamura, Shinichi Nishihaya, Hiroaki Ishizuka +3
For over a century, the Hall effect, a transverse effect under out-of-plane magnetic field or magnetization, has been a cornerstone for magnetotransport studies and applications. M…
Magnetic structure of EuCdSb single-crystal thin-film
Eliot Heinrich, Ayano Nakamura, Shinichi Nishihaya +5
We investigate the magnetic order in single crystalline EuCdSb thin films using a combined theoretical and experimental approach. Resonant elastic x-ray scattering experime…
Ferromagnetic state with large magnetic moments realized in epitaxially strained Sr3Ru2O7 films
Ren Oshima, Tatsuto Hatanaka, Shinichi Nishihaya +6
Technical advancement of oxide molecular beam epitaxy (MBE) has opened new avenues for studying various quantum transport phenomena in correlated transition-metal oxides, as exempl…
Berry curvature derived negative magnetoconductivity observed in type-II magnetic Weyl semimetal films
Ayano Nakamura, Shinichi Nishihaya, Hiroaki Ishizuka +5
Here we study nonmonotonic features which appear both in magnetoresistivity and anomalous Hall resistivity during the simple magnetization process, by systematically measuring type…
Intrinsic insulating transport characteristics in low-carrier density EuCd2As2 films
Shinichi Nishihaya, Ayano Nakamura, Mizuki Ohno +4
Searching for an ideal magnetic Weyl semimetal hosting only a single pair of Weyl points has been a focal point for systematic clarification of its unique magnetotransport derived…
Edge and bulk states in Weyl-orbit quantum Hall effect as studied by Corbino measurements
Yusuke Nakazawa, Ryosuke Kurihara, Masatoshi Miyazawa +5
We investigate edge and bulk states in Weyl-orbit based quantum Hall effect by measuring a Corbino-type device fabricated from a topological Dirac semimetal (Cd1-xZnx)3As2 film. Cl…
Tuning the Band Topology of GdSb by Epitaxial Strain
Hadass S. Inbar, Dai Q. Ho, Shouvik Chatterjee +12
Rare-earth monopnictide (RE-V) semimetal crystals subjected to hydrostatic pressure have shown interesting trends in magnetoresistance, magnetic ordering, and superconductivity, wi…
Enhancement of spin-orbit coupling in Dirac semimetal CdAs films by Sb-doping
Yusuke Nakazawa, Masaki Uchida, Shinichi Nishihaya +3
We present a study on magnetotransport in films of the topological Dirac semimetal CdAs doped with Sb grown by molecular beam epitaxy. In our weak antilocalization anal…
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…
Quantized surface transport in topological Dirac semimetal films
Shinichi Nishihaya, Masaki Uchida, Yusuke Nakazawa +7
Unconventional surface states protected by non-trivial bulk orders are sources of various exotic quantum transport in topological materials. One prominent example is the unique mag…
Negative magnetoresistance suppressed through topological phase transition in (Cd1-xZnx)3As2 films
S. Nishihaya, M. Uchida, Y. Nakazawa +7
The newly discovered topological Dirac semimetals host the possibilities of various topological phase transitions through the control of spin-orbit coupling as well as symmetries a…
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…