何攀

个人简介

何攀，青年研究员，博士生导师。1985年生于江西上饶，2008年在上海大学物理系获学士学位，2014年在复旦大学物理学系获博士学位。2014-2015年在法国国家科学研究中心从事博士后研究；2015-2020年在新加坡国立大学任高级研究员（Senior Research Fellow）；2020年9月加入复旦大学工作至今。曾担任国际知名学术会议分会主席，并受邀在国际学术会议（APS March Meeting等）作邀请报告。入选国家海外高层次人才计划（青年项目）和上海市海外高层次人才计划。

研究方向

主要研究方向为量子材料自旋电子学和低维磁学。我们当前的研究集中在新颖量子材料的自旋(磁)特性研究和自旋电子器件应用。我们特别关注拓扑量子材料、二维材料、强关联材料以及它们的薄膜异质结构。这些材料具有有趣的自旋（磁）特性，有望实现低能耗的多功能电子器件。特别是通过运用对称性、尺寸效应、层间堆砌方式和拓扑性质等，我们可以设计和调控这些材料的丰富自旋（磁）特性。我们主要运用电学和光学手段来研究各种自旋电子学现象，包括反常霍尔效应、自旋霍尔效应、自旋轨道力矩、自旋相关磁电阻及非线性效应等。通过时间分辨的探测技术和微纳电子器件的制备，探索超快时间分辨和纳米空间分辨的自旋电子学过程，以及这些物理过程对温度和外场等的响应。我们的研究特别强调探索新的基础物理和量子器件的产业应用，并将两者紧密结合。目前在Nature Physics，Nature Nanotechnology，Physical Review Letters，Nature Communications等学术期刊上共发表论文近30篇，总引用1000余次。

Research interest: Spintronics in Quantum Materials

Research in Professor He's lab focuses on understanding spin (magnetic) properties in novel quantum materials and their applications in spintronic devices. Of particular interest are topological materials, two-dimensional materials, strongly correlated materials and their heterostructures. These materials host a variety of fascinating spin (magnetic) properties, and offer exciting opportunities to achieve energy-efficient multifunctional devices. Especially, they provide a new platform to design and engineer exotic spin (magnetic) phenomena utilizing symmetry, dimensionality, stacking order and topology. We employ electrical and optical tools to investigate a broad range of fascinating spintronic phenomena, including anomalous Hal effect, spin Hall effect, spin-orbit torque, spin-related magnetoresistance, spin nonlinear effects and etc. In particular, ultrafast time-resolved techniques and nano-device fabrications are utilized to study spintronic phenomena on a time scale down to femtoseconds and a spatial resolution of nanometers, under the conditions of low temperature and high magnetic field. The fundamentally interesting physics and quantum device applications are highly valued in our research.

代表性论文

1. Pan He, Gavin Kok Wai Koon, Hiroki Isob, Jun You Tan, Junxiong Hu, Antonio H. Castro Neto, Liang Fu and Hyunsoo Yang, Graphene moiré superlattices with giant quantum nonlinearity of chiral Bloch electrons，Nature Nanotechnology, 1-6 (2022).

2. Pan He, Hiroki Isobe, Dapeng Zhu, Chuang-Han Hsu, Liang Fu, and Hyunsoo Yang，Quantum frequency doubling in the topological insulator Bi₂Se₃, Nature Communications, 12，698 (2021).

3. P. He, C. Hsu, S. Shi, K. Cai, J. Wang, Q. Wang, G. Eda, H. Lin, V. Pereira & H. Yang, Nonlinear magnetotransport shaped by Fermi surface topology and convexity, Nature Communications, 10，1290 (2019).

4. Pan He, Steven S.-L. Zhang, Dapeng Zhu, Shuyuan Shi, Olle G. Heinonen, Giovanni Vignale and Hyunsoo Yang，Nonlinear planar Hall effect，Phys. Rev. Lett, 123, 016801 (2019).

5. P. He, S. S.-L. Zhang, D. Zhu, Y. Liu, Y. Wang, J. Yu, G. Vignale and H. Yang, Bilinear magneto-electric resistance as a probe of three-dimensional spin texture in topological surface states, Nature Physics, 14, 495 (2018).

6. P. He, S. McKeown Walker, Steven S.-L. Zhang, F. Y. Bruno, M. S. Bahramy, J. Lee, Ramaswamy, K. M. Cai, O. Heinonen, G. Vignale, F. Baumberger, and H. Yang, Observation of out-of-plane spin texture in a SrTiO₃ (111) surface two-dimensional electron gas, Phys. Rev. Lett.120, 266802 (2018).

7. P. He, X. Qiu, V. L. Zhang, Y. Wu, M. H. Kuok, and H. Yang, Continuous Tuning of the Magnitude and Direction of Spin-Orbit Torque Using Bilayer Heavy Metals, Advanced Electronic Materials, 2, 1600210 (2016).

8. P. He, X. Ma, J. W. Zhang, H. B. Zhao, G. Lupke, Z. Shi, and S. M. Zhou，Quadratic scaling of intrinsic Gilbert damping with spin-orbital coupling in L1₀ FePdPt films: Experiments and ab initio calculations, Phys. Rev. Lett. 110, 077203 (2013).

9. P. He, L. Ma, Z. Shi, G. Y. Guo, J.-G. Zheng, Y. Xin, and S. M. Zhou, Chemical Composition Tuning of the Anomalous Hall Effect in Isoelectronic L1₀FePd_1-xPt_x Alloy Films, Phys. Rev. Lett. 109, 066402 (2012).