プレイワールドカジノを徹底解説：ボーナス・入出金・登録方法

International Affairs Students Current Students Alumni Faculty/Staff Careers--> TOHOKU UNIVERSITYCREATING GLOBAL EXCELLENCE Search 日本語 Contact Tohoku University --> About Facts & Figures Facilities Organization Chart History President's Message Top Global University Project Designated National University Global Network Promotional Videos Academics Undergraduate Graduate Courses in English Exchange Programs Summer Programs Double Degree Programs Academic Calendar Syllabus Admissions Undergraduate Admissions Graduate Admissions Fees and Expenses Financial Aid Research Feature Highlights Research Releases University Research News Research Institutes Visitor Research Center Research Profiles Academic Research Staff Campus Life International Support Office IT Services Facilities Dining & Shops Campus Bus Clubs & Circles News University News Research--> Arts & Culture Health & Sports Campus & Community Press Release--> International Visit Alumni Careers Events Exhibits Music Special Event Lecture Alumni--> Map & Directions Campus Maps & Bus--> Facilities Map--> TOHOKUUNIVERSITY About Academics Admissions Research Campus Life News Events International Affairs Students Current Students Alumni Faculty/Staff Promotional Videos Subscribe to our Newsletter Map & Directions Contact Jobs & Vacancies Emergency Information Site Map 日本語 Close Home Research News The First High-speed Straight Motion of Magnetic Skyrmion at Room Temperature Demonstrated Research News The First High-speed Straight Motion of Magnetic Skyrmion at Room Temperature Demonstrated 2019-11-19 Researchers at Tohoku University have, for the first time, successfully demonstrated a formation and current-induced motion of synthetic antiferromagnetic magnetic skyrmions. The established findings are expected to pave the way towards new functional information processing and storage technologies. Magnetic skyrmion is known to be a topological object, emerged in magnetic systems. It possesses the ability to be made at nanoscale and to be driven by a current, showing promise for various applications where information is represented by the presence, absence, number, or state of the skyrmion. However, there remains one stumbling block - the skyrmion Hall effect. Schematic of magnetic skyrmion and magnetic devices utilizing skyrmion ⒸTakaaki Dohi and Shunsuke Fukami The skyrmion Hall effect entails the skyrmion not moving along the current, but in the direction diagonal to the current because of the inherent angular momentum of the skyrmion, degrading the efficiency and stability of devices. As such, demand is high for technology that overcomes the skyrmion Hall effect. The research group - which includes Professor Hideo Ohno (current Tohoku University President), Associate Professor Shunsuke Fukami, and Ph.D. candidate Mr. Takaaki Dohi - developed a magnetic stack structure in which the skyrmion is moved along the current, avoiding the skyrmion Hall effect. The developed structure effectively exploits three spintronics effects, Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, Dzyaloshinskii-Moriya (DM) interaction, and spin-orbit (SO) interaction. Due to the RKKY and DM interactions, a synthetic antiferromagnetically-coupled (SyAF) skyrmion is successfully formed. In addition, thanks to the SO interaction, the SyAF skyrmion is moved with a much smaller current than conventional single ferromagnetic skyrmion. Moreover, suppression of skyrmion Hall effect is confirmed for the SyAF system. Kerr microscopy image of the formed skyrmions ⒸTakaaki Dohi and Shunsuke Fukami This is the first demonstration of the formation and current-induced motion of magnetic skyrmion circumventing the skyrmion Hall effect at room temperature. Ultimately, the present finding is expected to open the pathway to newer spintronics devices in which topology arising in magnetic materials is fully utilized. Publication Details: Title: Formation and current-induced motion of synthetic antiferromagnetic skyrmion bubblesAuthors: T. Dohi, S. DuttaGupta, S. Fukami, and H. OhnoJournal: Nature CommunicationsDOI: 10.1038/s41467-019-13182-6 Press release in Japanese Contact: Shunsuke FukamiResearch Institute of Electrical Communication, Tohoku UniversityEmail: s-fukamiriec.tohoku.ac.jp Archives 2014&＃24180; 2015&＃24180; 2016&＃24180; 2017&＃24180; 2018&＃24180; 2019&＃24180; 2020&＃24180; 2021&＃24180; 2022&＃24180; 2023&＃24180; Page Top About Tohoku University Academics Admissions Research Campus Life News Events International Affairs Students Alumni Promotional Videos Subscribe to our Newsletter Map & Directions Contact Tohoku University Jobs & Vacancies Emergency Information Site Map Media Enquiries Parent & Family Support Public Facilities Contact Tohoku University