153 citations · 325 across the 15 of their papers we have counts for
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Surface Circular Photogalvanic Effect in Tl-Pb Monolayer Alloys on Si(111) with Giant Rashba Splitting
Ibuki Taniuchi, Ryota Akiyama, Rei Hobara +1
We have found that surface superstructures made of "monolayer alloys" of Tl and Pb on Si(111), having giant Rashba effect, produce non-reciprocal spin-polarized photocurrent via ci…
Spin-glass state induced by Mn-doping into a moderate gap layered semiconductor SnSe
Hongrui Huang, Azizur Rahman, Jianlin Wang +3
Various types of magnetism can appear in emerging quantum materials such as van der Waals layered ones. Here, we report the successful doping of manganese atoms into a post-transit…
Direct probe of ferromagnetic proximity effect at the interface in Fe/SnTe heterostructure by polarized neutron reflectometry
Ryota Akiyama, Ryo Ishikawa, Kazuhiro Akutsu +7
Introducing magnetic order into a topological insulator (TI) system has been attracting much attention with an expectation of realizing exotic phenomena such as quantum anomalous H…
Large-gap magnetic topological heterostructure formed by subsurface incorporation of a ferromagnetic layer
Toru Hirahara, Sergey V. Eremeev, Tetsuroh Shirasawa +17
Inducing magnetism into topological insulators is intriguing for utilizing exotic phenomena such as the quantum anomalous Hall effect (QAHE) for technological applications. While m…
Origin of the large positive magnetoresistance in Ge1-xMnx granular thin films
Yuki K. Wakabayashi, Ryota Akiyama, Yukiharu Takeda +9
GeMn granular thin films are a unique and promising material for spintronics applications due to large positive magnetoresistance (MR). Previous studies on GeMn have suggested that…
Thin film growth of a topological crystal insulator SnTe on the CdTe (111) surface by molecular beam epitaxy
Ryo Ishikawa, Tomonari Yamaguchi, Yusuke Ohtaki +2
We report molecular beam epitaxial growth of a SnTe (111) layer on a CdTe template, fabricated by depositing it on a GaAs (111)A substrate, instead of BaF which has been conven…
Carrier transport properties of the Group-IV ferromagnetic semiconductor Ge1-xFex with and without boron doping
Yoshisuke Ban, Yuki Wakabayashi, Ryota Akiyama +2
We have investigated the transport and magnetic properties of group-IV ferromagnetic semiconductor Ge1-xFex films (x = 1.0 and 2.3 %) with and without boron doping grown by molecul…