logo

korean english

게시판

Home > 게시판 > 세미나

아래와 같이 세미나를 개최하오니 많이 참석해 주시기 바랍니다. 아 래 제목: Organic-based Magnet and Organic-based spintronics : New science and Technologies 연사: 유 정 우 박사 (The Ohio State University) 일시: 2010년 4월 27일(화) 오후 4:00~6:00 장소: 기초과학연구소 세미나실 (31317호실) 초록: Molecule/organic-based magnets are relatively new materials created by chemical synthesis targeting magnetic properties at the macroscopic and/or molecular level [1]. These materials, ranging from solely organic to organic-inorganic hybrid complexes, exhibit scientific richness in both physics and chemistry. The ability to control both the magnetic and structural properties of these materials through organic, organometallic, and coordination metal chemistry allows creating an experimental platform for the various theoretical models. Particularly interesting phenomena in this class of magnets is “magnetic bistability”, which often can be controlled by the optical excitations. Besides those unique magnetic phases and phenomena, the electronic structures of these materials also suggest significant potential for the emerging field of spintronics. In this talks, I will discuss recent development on the applications of organic-based magnetic/nonmagnetic semiconductor for the spintronics. We demonstrated all main ingredients of the spintronic operations, the spin injection/detection/transport/polarizing within/between organic non-magnetic/magnetic semiconductors. The thorough study of the device characteristics unravels the physical mechanisms concerning how the spins are transferred into and through an organic semiconductor [2]. In addition, the room temperature organic-based magnet, V(TCNE: tetracyanoethylene)x was successfully incorporated into the standard magnetic tunnel junction devices [3]. Our results unambiguously demonstrate spin filtering through a V(TCNE)x magnetic semiconductor film, wherein spin polarized carriers tunnel through the hybrid barrier while effectively conserving their spin polarization. The exploiting spin polarization in carbon-based system will certainly give a birth of a new paradigm of molecule-based magnetic electronics.
번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1090878
118 <5/14> Search for exotic materials: strongly correlated electron system 2010.05.10 120805
117 <12/4> The "Physics" of Climate Change 2009.12.02 121033
116 <Nov. 8(Wed.) 4:30 PM> 연성물질 기반 위상학적 결함구조의 상전이와 응 2017.11.01 121915
115 <July 7(Wed.)>Functional rare earth ionic defects and the related phenomena 2021.07.02 122121
114 <6/11(Mon.)3:30pm> Spontaneous Leptogenesis in Continuum-Clockwork Axion Models 2018.06.08 122546
113 <8/17> AdS Black Hole Solutions in Extended New Massive Gravity 2010.08.16 122811
112 <6/18> Multiferroics: Magnetism-driven Ferroelectricity 2009.05.27 123086
111 <7/24(Mon.)11:00>Antenna Arrays for Astroparticle Physics: Radio Detection of High-Energy Cosmic Rays 2017.07.19 123256
» <4/27> Organic-based Magnet and Organic-based spintronics : New science and Technologies 2010.04.22 123641
109 <May 17(Wed.) 4:30 PM>Printed Electronics 2017.05.10 123896
108 <8/5>Brane superpotential via local Calabi-Yau spaces 2009.08.03 124054
107 <3/31> ZnO nanorod heterostructures and nanodevices 2006.03.27 124774
106 <4/30> Updates on warped brane inflation 2009.04.21 125628
105 <5/15>Black Hole Entropy Function in (Anti-)de Sitter Space-Time 2008.05.09 125952
104 <11/13(Tue.) 11:00am>Hund’s coupling driven role of $d_{3z^2-r^2}$ in stabilizing the hole-doped antiferromagnetic state in cuprates 2018.11.09 125975
103 <Sep. 29(Wed.)> Longitudinal Spin Seebeck effect in Pt/YIG structure with monolayer WSe2 and MoS2 interlayer 2021.09.16 126243
102 <1/28> Steps towards a non-relativistic AdS/CFT 2010.01.25 126509
101 <Oct.15(Thu) 16:30> Single-Molecule Approach to Homology Search & Strand Exchange in Homologous Recombination 2015.10.12 127294
100 <3/26> Fractional Hall Physics of Epitaxial Graphene: 2010.03.19 127436
99 <7/20(Thu.)14:00>Engineering and probing topological properties of Dirac semimetal films by asymmetric charge transfer 2017.07.18 127618