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讲准字256号:基于单分子磁体的新型量子分子自旋电子学:单分子记忆、自旋量子位和超导

发布时间:2018-09-14|浏览次数:

题目:基于单分子磁体的新型量子分子自旋电子学:单分子记忆、自旋量子位和超导

主讲:山下正廣(M.Yamashita)

时间:2018年9月27日 14:30

地点:化学化工学院212报告厅

主办:化学化工学院


主讲简介:山下正廣(M.Yamashita),日本东北大学教授。研究专长:纳米金属配合物、单分子磁体、无机-有机杂化超导材料的合成和物性。山下正廣教授是日本知名化学家,英国皇家化学会会士,主要研究纳米金属配合物、单分子磁体、无机-有机杂化超导材料的合成和物性,特别在多功能纳米金属配位聚合物的研究领域有很深的造诣,主持和参与日本多项重点项目研究。在国际权威刊物发表论文500余篇,其中Nature,J Am Chem Soc,Angew Chim,Coord Chem Rev,Adv Mater等IF>8的顶级杂志论文80余篇,撰写学术专著5部,获得授权发明专利3项。

 

主讲内容:Spintronics is a key technology in the 21st century. Although bulk or classical magnets composed of transition metals are normally used. For realizing the single-molecule memory devices, Co bilayer (ferromagnet) on Au(111) was sublimated, then sublimated double-decker bis(phthalocyaninato) Tb(III) SMMs (TbPc2) on them. By using spin-polarized STM with Co atom tip (paramagnet), we have succeeded to write and read the spin orientations on TbPc2 as up and down, respectively.For realizing the quantum computer, the spin Qubits and coherence at room temperature are very important. For this purpose, we synthesized porphyrin V(IV) complex (0D) and MOF-Porphyrin V(IV) complexes (2D and 3D). The 3D complex shows Rabi nutation even at room temperature due to the rigid lattice of MOF. This system is so-called MOF-spintronics. The first superconducting SMM has been synthesized, which on-set temperature is 11K, and the superconductivity and SMM conflict with each other.


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