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More is different: the beauty of multiband in iron-based superconductors

发布时间:2024-12-16     来源:物理学系综合网     编辑:     浏览次数:10

题目:More is different: the beauty of multiband in iron-based superconductors

报告人:丁洪

邀请人:史明

时间:2024年1219日(周)下午15:30

地点:紫金港校区海纳苑8幢215报告厅


摘要:

In a paradigm-shifting article “More is different” in 1972, Phil Anderson pointed out that new properties can emerge from a many-body system, which cannot be derived from the constituent particles. In this talk I would argue that even two or three can be regarded as “more” in the world of superconductors. During this talk, I will highlight the unnoticed beauty of multiband of iron-based superconductors, including 1.  Emergence of topological band which coexists with superconductivity, leading to the discovery of Majorana zero mode; 2. Interplay of multicomponent superconductivity, leading to the discoveries of exotic paring with time-reversal symmetry breaking and fractional vortex; 3. Contribution of Hund coupling towards pairing in this unique class of superconductors.


个人简介:

丁洪,中国科学院院士,上海交通大学李政道研究所讲席教授1990年毕业于上海交通大学,1995年获伊利诺伊大学芝加哥分校物理博士1998年至2008年在波士顿学院物理系任助理教授、副教授教授2008年至2022为中国科学院院物理研究研究员。取得了多个具有重要国际影响力的开创性成果,学术成果于2015年、2017年和2018年三次入选中国科学十大进展/中国十大科技进展新闻。在学术期刊上发表了300多篇学术论文,总引用超过20000次。曾获美国斯隆奖、国家杰出青年科学基金B类、美国物理学会会士、欧洲先进材料奖、中国科学院杰出科技成就奖、腾讯新基石研究员、第三世界科学院物理奖等奖励。