The University of Osaka · 물리·천문학
Teruo Ono 교수의 연구실은 나노스케일에서의 자기적 현상과 전자적 성질 간의 상호작용을 중심으로 연구를 진행하고 있습니다. 특히 나노와이어 내에서의 자기 도메인 움직임과 그에 따른 전도도 양자화 현상, 그리고 거대 자기저항 효과를 활용한 나노센서 기반 기술 개발에 주력하고 있습니다. 연구는 나노전자소자 및 스핀트로닉스 분야의 핵심 기반 기술을 개발하는 것을 목표로 합니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
The motion of a magnetic domain wall in a submicrometer magnetic wire was detected by use of the giant magnetoresistance effect. Magnetization reversal in a submicrometer magnetic wire takes place by the propagation of a magnetic domain wall, which can be treated as a "particle." The propagation velocity of the magnetic domain wall was determined as a function of the applied magnetic field.
The microsomal enzyme system from rat liver which catalyzes squalene epoxidation requires a supernatant protein and phospholipids (Tai, H., and Bloch, K. (1972) J. Biol. Chem. 247, 3767). It has now been found that these two cytoplasmic components can be replaced by Triton X-100. The same detergent solubilizes the microsomal squalene epoxidase and the resulting supernatant can be separated into two components, A and B, by DEAE-cellulose chromatography. Neither Fraction A nor B alone has signific
We demonstrate the electrical conductance quantization in a Ni nanowire formed in a break junction between a ferromagnetic Ni wire and a Ni plate in applied magnetic fields. The conductance of the nanowire is clearly quantized in units of 2e2/h in a zero magnetic field, but it is switched to e2/h by applying magnetic fields above 60 Oe. This switching behavior seems closely related to a ferromagnetic domain formation in the vicinity of a nanowire, suggesting that nanoscale magnetic domain walls
