Tohoku University · 물리·천문학
Kohei Fujiwara 교수의 연구실은 주로 유기 이온 수송체와 페로자성 페로자성 반도체, 특히 토폴로지적 전자 상태를 가진 신소재의 전자적 성질을 연구하고 있습니다. 특히 뇌에서의 갑상선 호르몬 수송 메커니즘을 규명한 OATP-E 수송체의 기초 연구와 함께, Fe-Sn 및 Co3Sn2S2 계열의 비정질 및 얇은 필름에서 나타나는 이상한 홀 효과, 이상한 열전 효과 등 토폴로지적 물리현상에 초점을 맞추고 있습니다. 이는 고성능 에너지 변환 소자 및 신소재 전자소자 응용에 기여할 잠재력을 지닙니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
International audience
We have recently identified that rat organic anion transporters, polypeptide2 (oatp2) and oatp3, both of which transport thyroid hormones. However, in humans the molecular organization of the organic anion transporters has diverged, and the responsible molecule for thyroid hormone transport has not been clarified, except for human liver-specific transporter (LST-1) identified by us. In this study we isolated and characterized a novel human organic anion transporter, OATP-E from human brain. The
Amorphous semiconductors are widely applied to electronic and energy-conversion devices owing to their high performance and simple fabrication processes. The topological concept of the Berry curvature is generally ill-defined in amorphous solids, due to the absence of long-range crystalline order. Here, we demonstrate that the Berry curvature in the short-range crystalline order of kagome-lattice fragments effectively contributes to the anomalous electrical and magneto-thermoelectric properties
We synthesized the magnetic Weyl semimetal candidate Co3Sn2S2 as a thin film using the co-sputtering technique. By adjusting the film composition using a sulfur-rich SnS1.5 target with Co metal chips attached, we obtained highly crystallized, single-phase Co3Sn2S2 films. The films showed a ferromagnetic transition around 180 K with perpendicular remanent magnetization. We observed the anomalous Hall effect with a tangent of Hall angle of 0.20 at 130 K, as previously reported for the bulk single
