一、主讲人
张固非博士，南丹麦大学助理教授，Functional Diamond 国际编委。主要从事量子材料、凝聚态物理、介观物理、半导体物理、自旋电子学和等离子体学等方面研究。在Science Advances，Physical Review Letters，Advanced Materials，Nature Communications，ACS Nano等高水平期刊发表多篇文章，2014年获得FWO fellowship，2017年获得欧盟委员会Seal of Excellence。
二、讲座主题
Quantum Phenomena in Diamond and Other Materials
三、讲座时间
2022年12月23日16：00
四、内容简介
Apart from being a wide-bandgap semiconductor, diamond also provides a powerful platform for unveiling new quantum phenomena for the development of quantum electronics. The most effective method to tune the electronic properties of diamond is to introduce substitutional boron dopants into this material. Upon doping, diamond undergoes the insulator−metal transition when the boron concentration is about 3×1020 cm−3. At even higher boron doping levels, diamond becomes superconducting. Synthetic diamond can be not only superconducting but also ferromagnetic. Recently, our research on hydrogenated boron-doped nanodiamond films has revealed the coexistence of the two mutually antagonistic orderings in this system.
In this talk, a brief overview about quantum confinement and coherence effects in boron-doped polycrystalline diamond will be provided, which demonstrate the vital influence of granularity on the quantum electronic properties of this material. The physics, which we extracted from polycrystalline diamond, can be applied to other granular electronic materials. The talk will focus on our recent observations of a series of emergent quantum phenomena such as giant magnetoresistance, anomalous Hall effect, and magnetic bound states in ferromagnetic superconducting diamond. These intriguing findings make ferromagnetic superconducting diamond an attractive system with which to explore unconventional physics and develop new applications.
In addition, the audience will be briefed on our investigations of phase slips in one-dimensional (1D) superconducting nanowires and unconventional phase transitions in a quasi-1D linear chain compound.
五、参会方式
ZOOM：985 189 3430
会议链接（进入链接下载ZOOM软件，无需注册，输入会议号即可参会）：https://us06web.zoom.us/j/9851893430
二维码：
六、举办方简介
（一）哈工大郑州研究院
★ 哈工大郑州研究院暨哈尔滨工业大学产教融合人才培养基地（郑州）是哈尔滨工业大学和郑州市人民政府基于战略发展需要，为贯彻实施国家创新驱动发展战略，围绕区域产业特色，服务经济发展需求，共同举办的具有综合职能的新型研发机构。围绕医学健康与光电融合两大领域，智能制造、信息电子、智能建造、新能源等研究方向，研究院面向世界一流高校及科研院所开展技术引进、国际学术交流、国际科技平台建设等科研活动，实施外籍科研团队及外籍博士后高层次人才的引进与汇聚计划，逐步形成全方位、多层次、宽领域的常态化国际合作关系。
（二）红外薄膜与晶体团队
★ 红外薄膜与晶体团队隶属于特种环境复合材料技术国家级重点实验室，由杜善义院士、韩杰才院士倡导成立，主要从事金刚石晶体与器件，热界面复合材料，飞行器透明件及功能薄膜技术等研究工作。学术带头人为国家高层次人才朱嘉琦教授。
（三）Functional Diamond 期刊
★ Functional Diamond是由郑州磨料磨具磨削研究所有限公司联合Taylor&Francis Group于2020年底共同创办的全英文期刊，致力于刊登金刚石材料在各个领域的科学问题及功能应用。期刊定位为开放获取期刊，所收录的文章发布在Taylor & Francis出版集团的官方网站上。
编辑：孟雪，审核：吴嘉文