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 1020064
122 <Nov. 8(Wed.) 4:30 PM> 연성물질 기반 위상학적 결함구조의 상전이와 응 2017.11.01 96336
121 <Dec.5(Wed.)> 두 펄사 이야기 2018.11.28 96570
120 <Nov. 16(Wed.) 4:30 PM> Two-dimensional Chiral Materials and Topological Insulators 2016.11.10 97272
119 2014학년도 1학기 콜로퀴움 일정 2014.03.03 97441
118 <8/4> Remarks on the Scalar Graviton and Consistency of Horava Gravity 2010.07.28 97466
117 <10/15> Electric control of magnetic nanostructures via spin torque 2010.10.08 97728
116 <4/16> Lasers, Microscopes, and Superconductors: Laser Scanning Microscopy of Superconducting Circuits 2014.04.10 97730
115 <11/22>A Glimpse of X-ray Sky 2006.11.16 98306
114 <12/21(금)> Theory of topological quantum phase transitions in 3D noncentrosymmetric systems 2012.12.05 98311
113 <6/1> Electron phonon coupling effect in 4d transition metal oxide magnetism 2011.05.26 98401
112 <6/2>백색 LED를 이용한 반도체조명에 관하여 2006.05.29 98628
111 <11/13> Computer-Aided Engineering for Nucleic Acid Nanostructures 2013.11.07 98633
110 <11/16> Study of carrier transport and charging effects in organic devices 2011.11.10 99270
109 <8/17> AdS Black Hole Solutions in Extended New Massive Gravity 2010.08.16 99278
108 <6/18> Multiferroics: Magnetism-driven Ferroelectricity 2009.05.27 99963
107 <2/16>Development of Micromegas detectors for neutron physics 2010.02.01 99989
106 <9/11> Complex networks in technology, biology and sociology 2009.09.04 99989
» <4/27> Organic-based Magnet and Organic-based spintronics : New science and Technologies 2010.04.22 100380
104 <5/28> The hunt for high energy neutrinos with IceCube - more evidence for their astrophysical origin 2014.05.22 100647
103 <4/13> Introduction to Quantum Information Processing 2007.04.11 100756