R. Akiyama

activity

20142023

most citedLarge-gap magnetic topological heterostructure formed by subsurface incorporation of a ferromagnetic layer

153 citations · 325 across the 15 of their papers we have counts for

collaborators

Showing 2017Show all

3 papers · 1 filter

cond-mat.mtrl-sci2017★ 153 cited

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…

cond-mat.mes-hall2017★ 13 cited

Berry phase shift from 2 $π$ to $π$ in Bilayer graphene by Li-intercalation and sequential desorption

Ryota Akiyama, Yuma Takano, Yukihiro Endo +4

We have found that the Berry phase of bilayer graphene becomes from 2 $π$ estimated by Shubnikov-de Haas oscillations when the A-B stacked pristine bilayer graphene experiences the…

cond-mat.mes-hall2017★ 17 cited

Shubnikov-de Haas oscillations in p and n-type topological insulator (Bi $_{x}$ Sb $_{1 - x}$ ) $_{2}$ Te $_{3}$

Ryota Akiyama, Kazuki Sumida, Satoru Ichinokura +4

We show Shubnikov-de Haas oscillations in topological insulator (Bi $_{x}$ Sb $_{1 - x}$ ) $_{2}$ Te $_{3}$ films whose carrier type is p-type (x = 0.29, 0.34) and n-type (x = 0.42). The ph…

Large-gap magnetic topological heterostructure formed by subsurface incorporation of a ferromagnetic layer

Berry phase shift from 2 π to π in Bilayer graphene by Li-intercalation and sequential desorption

Shubnikov-de Haas oscillations in p and n-type topological insulator (Bix​Sb1−x​)2​Te3​

Berry phase shift from 2 $π$ to $π$ in Bilayer graphene by Li-intercalation and sequential desorption

Shubnikov-de Haas oscillations in p and n-type topological insulator (Bi $_{x}$ Sb $_{1 - x}$ ) $_{2}$ Te $_{3}$