陈凯

发布时间:2021-08-24

陈凯

单位:国家同步辐射实验室
地址:安徽省合肥市蜀山区合作化南路42

中国科学技术大学国家同步辐射实验室3号楼409
邮编:230029
电话:18214752842

联系邮箱:kaichen2021@ustc.edu.cn



个人背景

陈凯,博士,特任研究员,博士生导师。2008年在中国科学院高能物理研究所获得博士学位,2008年至2021三月欧洲(德国汉堡大学,科隆大学,柏林同步辐射以及法国Soleil同步辐射)从事博研究及束线科学家工作,20214月以人才引进回国加入中国科学技术大学国家同步辐射实验室。主要研究内容是通过同步辐射吸收谱和圆/线二色方法研究凝聚态相关材料,包括过渡金属及稀土合金的磁性特征,过渡金属氧化物界面处的磁性调控及表征,过渡金属氧化物的自旋态调控等,共计发表文章40余篇。


研究方向

1、铁磁和反铁磁薄膜材料的同步辐射表征

2氧化物界面的电荷转移及由此引起的奇异磁性

3磁性/非磁性材料界面的近邻效应


硕/博士招生信息

本课题组热忱欢迎具有凝聚态物理或者材料科学等相关或者相似背景的同学加入,欢迎内心诚实、热爱科研、积极主动、动手能力强的同学报考研究生,本课题与欧洲同步辐射有长期的合作,为组内希望出国交流的同学提供必要的支持


主要代表作

(1) K. Chen*; D. Lott; A. Philippi-Kobs; M. Weigand; C. Luo; F. Radu; Observation of compact ferrimagnetic skyrmions in DyCo3 film, Nanoscale, 2020, 12: 18137-18143.

(2) K. Chen*; A. Philippi-Kobs; V. Lauter; A. Vorobiev; E. Dyadkina; V.Yu. Yakovchuk; S. Stolyar; D. Lott; Observation of a Chirality-Induced Exchange-Bias Effect, PHYSICAL REVIEW APPLIED, 2019, 12: 024047.

(3) K. Chen*; F. Strigari; M. Sundermann; Z. Hu; Z. Fisk; E. D. Bauer; P.F. S. Rosa; J. L. Sarrao; J. D. Thompson; J. Herrero-Martin; E. Pellegrin;D. Betto; K. Kummer; A. Tanaka; S. Wirth; A. Severing; Evolution of groundstate wave function in CeCoIn5 upon Cd or Sn doping, PHYSICAL REVIEW B, 2018,97: 045134.

(4) K. Chen*; T-C. Weng; G. Schmerber; V. N. Gurin; J.-P. Kappler; Q.Kong; F. Baudelet; A. Polian; L. Nataf; Surface- and pressure-induced bulk Kondo breakdown in SmB6, PHYSICAL REVIEW B, 2018, 97: 235153-1-235153-6.

(5) Kai Chen*; Dieter Lott; Florin Radu; Fadi Choueikani; Edwige Otero; Philippe Ohresser; Observation of an atomic exchange bias effect in DyCo4film, Scientific Reports, 2015, 5: 18377.  

(6)Yimin  Mijiti#; Kai Chen#; Joao Elias F. S. Rodrigues; Zhiwei Hu; Lucie Nataf; Angela Trapananti; Andrea Di Cicco*; Francois Baudelet*; Crystal and electronic structure of Co 3 O 4 spinel under pressure probed by XANES and Raman spectroscopy, PHYSICAL REVIEW B, 2021, 103: 024105.

(7)K. Chen*; C. Luo; B. B. Chen; R. M. Abrudan; G. Koster; S. K. Mishra; F. Radu*; Charge-transfer-induced interfacial ferromagnetism in La0.7Sr0.3MnO3/NdNiO3, PHYSICAL REVIEW MATERIALS, 2020, 4: 054408.

(8) J. Meng#; K. Chen#; Y. Mijiti; D. Chen; F. Choueikani; Z. Zou; L.Wang; G. Mu; W. Geng; Q. Kong; A. Jiang; X. Ning; Tsu-Chien Weng*; ChargeTransfer-Induced Interfacial Exchange Coupling at the Co/BiFeO3 Interface, PHYSICAL REVIEW APPLIED, 2019, 12: 044010.

(9) K. Chen; F. Baudelet*; Y. Mijiti; L. Nataf; A. Di Cicco; Z. Hu; S.Agrestini; A. C. Komarek; J. Rouquette; Q. Kong; T-C. Weng*; Revisiting the phase transition of magnetite under pressure, J. Phys. Chem. C, 2019, 123(34) : 21114-21119.

(10) K. Chen; M. Sundermann; F. Strigari; J. Kawabata; T. Takabatake; ,A. Tanaka; P. Bencok; F. Choueikani; A. Severing*; Tuning the hybridization and magnetic ground state of electron and hole doped CeOs2Al10: an x-ray spectroscopy study, PHYSICAL REVIEW B, 2018, 97: 155106.

(11) Y. Mijiti; K. Chen*; F. Boudelet; Collapse of itinerant ferromagnetism of CoS2 under pressure, PHYSICAL REVIEW B, 2018, 98: 184423

(12) K. Chen*; F. Strigari; M. Sundermann; S. Agrestini; N. J. Ghimire; S. -Z. Lin; C. D. Batista; E. D. Bauer; J. D. Thompson; E. Otero; A. Tanaka; A.Severing; Exchange field effect in the crystal-field ground state of CeMAl4Si2, PHYSICAL REVIEW B, 2016, 94: 115111.

(13) K. Chen; T. Beeck; S. Fiedler; I. Baev; W. Wurth; M. Martins*; Oxidation induced spin reorientation in Co and CoPd dimers on Ni/Cu(100), PHYSICAL REVIEW B, 2016, 93: 144421.

(14) Kai Chen*; Dieter Lott; Florin Radu; , Fadi Choueikani; Edwige Otero; Philippe Ohresser; Temperature dependent magnetic properties of ferrimagnetic DyCo3 film, PHYSICAL REVIEW B, 2015, 91: 024409

(15) K Chen; S Fiedler; I Baev; T Beeck; W Wurth; M Martins*; Hybridization and magnetism in small 3d-5d alloy clusters, New Journal of Physics, 2012,14: 123005.

(16) Kai Chen*; Robert Frömter; Stefan Rössler; Nikolai Mikuszeit; Hans Peter Oepen; Uniaxial magnetic anisotropy of cobalt films deposited on sputtered MgO(001) substrates, PHYSICAL REVIEW B, 2012, 86: 064432-064438.

(17) L. Glaser*; K. Chen; S. Fiedler; M. Wellhöfer; W. Wurth; M. Martins;
Magnetic properties of small size-selected Co and CoPt clusters on Ni, PHYSIC
AL REVIEW B, 2012, 86: 075435

(18) M. Sundermann*; K. Chen; H. Yavaş; Hanoh Lee; Z. Fisk; M. W. Haverkort; L. H. Tjeng; A. Severing; The quartet ground state in CeB6: An inelastic x-ray scattering study, Europhysics Letters, 2017, 117: 17003.

(19) W. J. Gannon*; K. Chen; M. Sundermann; F. Strigari; Y. Utsumi; K.-D.
Tsuei; J.-P. Rueff; P. Bencok; A. Severing; M. C. Aronson; Intermediate valence in single crystalline Yb2Si2Al, PHYSICAL REVIEW B, 2018, 98: 075101.

(20) M. Sundermann; H. Yavaş; K. Chen; D. J. Kim; Z. Fisk; D. Kasinathan;
M. W. Haverkort; P. Thalmeier; A. Severing*; L. H. Tjeng*; 4f crystal field
ground state of the strongly correlated topological insulator SmB6, PHYSICAL
REVIEW LETTER, 2018, 120: 016402.

(21) H. Yavas; M. Sundermann; K. Chen; A. Amorese; A. Severing; H.Gretarsson; M. W. Haverkort; L. H. Tjeng*; Direct imaging of orbitals in quantum materials, Nature Physics, 2019, 15: 559-563.

(22) S. Agrestini*; K. Chen; C.-Y. Kuo; L. Zhao; H.-J. Lin; C.-T. Chen; A. Rogalev; P. Ohresser; T.-S. Chan; S.-C. Weng; G. Auffermann; A. Volzke; A. C. Komarek; K. Yamaura; M. W. Haverkort; Z. Hu; L. H. Tjeng; Nature of the magnetism of iridium in the double perovskite Sr2CoIrO6, PHYSICAL REVIEW B, 2019, 100: 014443

(23) Yongsheng Zhao, Kai Chen, Nana Li, Shuailing Ma, Yonggang Wang, Qingyu Kong, Francois Baudelet, Xin Wang, and Wenge Yang, Tricolor Ho3+ Photoluminescence Enhancement from Site Symmetry Breakdown in Pyrochlore Ho2Sn2O7 after Pressure Treatment,PHYSICAL REVIEW LETTER, 2020, 125: 245701.