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关于物理学系5月20日校庆学术报告会的通知

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物理学系校庆学术报告会

 

时间:520日下午13:30-17:00

地点:玉泉校区教12-201

 

时间

报告人

单位

 

报告题目

 

13:30-14:40

景益鹏 院士

上海交通大学

 

宇宙暗物质与暗能量

 

14:40-15:50

沈健 千人学者

复旦大学

 

All-in-one spintronics: Manipulating electronic phase separation in complex oxides

 

15:50-17:00

谢心澄 院士

北京大学

 

自旋超导

 

 
物理学系校庆学术报告会一

题目:宇宙暗物质与暗能量

报告人:景益鹏  上海交通大学

地点: 教十二-201

时间: 520日,周六,13:30-14:40

 

摘要

天文观测表明,我们熟悉的原子物质只占宇宙物质的5%,而宇宙的绝大多数物质是暗物质和暗能量,它们主宰着宇宙和天体的形成与演化。这个发现被认为人类历史上最伟大的发现之一,目前天文学家和物理学家正在使用和建造大型研究设备揭示这些神秘物质的物理本质。本次讲座将介绍暗物质与暗能量发现的历史、它们的基本物理性质、以及当前的研究进展。

 

个人简介:

景益鹏,天体物理学家,中国科学院院士,上海交通大学讲席教授,天文与天体物理中心主任。长期从事宇宙结构、星系形成、暗物质与暗能量的观测和理论研究,取得一系列国际高影响力的成果,获国家自然科学二等奖、上海市自然科学一等奖等多项科技奖项和荣誉。现任教育部科技委数理学部副主任、国家自然科学基金委数理学部咨询专家等,曾任国家重点基础研究发展计划(973计划)“宇宙大尺度结构和星系形成与演化”项目首席科学家、国家自然科学基金委“星系形成和星系活动”创新团队负责人等。

 

  

物理学系校庆学术报告会二

题目:All-in-one spintronics: Manipulating electronic phase separation in complex oxides

报告人:沈健  复旦大学

地点: 教十二-201

时间: 520日,周六,14:40-15:50

 

摘要

In complex oxides systems such as manganites, electronic phase separation (EPS), a consequence of strong electronic correlations, dictates the exotic electrical and magnetic properties of these materials. Investigation of EPS phenomena is not only important for understanding the strong electronic correlations in these materials, but also very useful for tuning their physical properties. Mostwork in studying EPS has focused on observing EPS and understanding its formation mechanism.The natural appearance of EPS domains, as expected,istotally random in terms of their size and spatial distribution.In order to control the EPS and thus the physical properties of the complex oxides, in recent years we have developed several methods to control the shape, density, location, size, spatial distribution and even the very existence of the EPS domains in manganites. As a result, we are able to order array the EPS domains and finely tune the corresponding physical properties.It is hoped that these abilities will allow us to soon design spintronic devices by patterning EPS domains in one material. These new spintronic devices do not have chemical interfaces and thus are expected to have high spin transport efficiency.

 

个人简介:

Jian Shen received his Ph.D from Max-Planck Institut f. Mikrostrukturphyisik in 1996, and became a joint  faculty in Oak Ridge National Laboratory and The University of Tennessee in 1998. He joined Fudan university in 2010 as the HaoQing chair professor and the head of physics department, and was elected as APS fellow in 2011. His research interest is on the investigation of emerging phenomena at surface, in reduced dimensionality, and at nanometer scale. Specific interest includes magnetism and electronic transport of nanostructured materials and complex oxides, and their underlying physical mechanism. So far he has written five review articles for Surface Science, Surface Science Report, and J.Phys: Condensed Matter on low-dimensional magnetism. He has given over 100 invited talks at international conferences including  APS, AVS, MRS, MMM, Intermag and ICM. He has been served as the chair for the magnetism division in AVS, and the program chair for Intermag 2012. His past research has received a number awards including 2003 US Presidential Early Career Award for Science and Engineering (PECASE), the Otto-Hahn Medal from Max-Plank Society in Germany, the National Chair Professorship from Chinese government, the oversea outstanding young researcher award from Chinese NSF, and the Wigner fellow from Oak Ridge National Laboratory.

 

物理学系校庆学术报告会三

题目:自旋超导

报告人:谢心澄  北京大学

地点: 教十二-201

时间: 520日,周六,15:50-17:00

 

摘要

简单介绍超导及自旋电子学的基本背景知识。重点介绍在自旋超导领域的前沿研究成果,包括预言自旋超导这种与(电荷)超导态对应的新型宏观量子态,并指出可能存在该量子态的实验体系。提出包括类BCS理论及类金兹堡-朗道理论在内的自旋超导系统理论,预言电迈斯纳效应和自旋流的约瑟夫森效应,解释与预测若干新奇实验现象。提出电偶极子超导的基本系统理论;应用于双层激子体系,预言能够直接检验激子超流的三大特征效应。

 

个人简介:

谢心澄,现任北京大学物理学院院长、讲席教授,中组部首批“千人计划”海外引进人才,科技部重大科学研究计划项目(973计划)首席科学家。1988年在美国马里兰大学获博士学位。曾任美国俄克拉荷马州立大学校董事会讲座教授、中科院物理所凝聚态理论与材料计算研究室主任、中科院国际量子结构中心主任、北京大学量子材料科学中心主任等职。主要从事凝聚态物理研究,研究领域包括量子霍尔效应、电荷及自旋输运、低维量子体系、关联电子系统等。共发表SCI文章200多篇,包括36PRL100余篇PR系列的文章。任PRL凝聚态物理副主编。在国际学术会议、研讨会上作邀请报告170余次。所获奖项包括国家特聘专家(2011)、中国科学院杰出科技成就奖(2011)、中国科学十大进展(2010)、美国物理学会会士(APS Fellow)(2008)、美国俄克拉荷马州立大学Regents Outstanding Research Award2005)、国家杰出青年基金海外类资助(2002)、中科院海外知名学者(2001)等。

 

欢迎老师和同学参加!