金魁

简介


研究员,博士生导师。男,1981年生,2003年武汉大学学士,2008年中科院物理所博士,2008-2012年美国马里兰大学(Univerisity of Maryland, College Park)博士后。2012年12月底加入中科院物理所超导国家重点实验室,现任实验室副主任、党支部书记。在Nature、Nature Commun、PNAS、JACS、Nano Lett、APL Mater、PRB等期刊发表论文80余篇。自2013年起受理、获授中国发明专利共计16项。

主要研究方向


本课题组研究方向可概括为“超导薄膜与高通量超导研究”。
关键词:高温超导,单晶薄膜,材料基因组。

1. 开辟高通量超导研究方向。以先进的高通量合成技术为主要手段,制备外延组合薄膜及界面。超导薄膜通常是在超导多晶材料报道后才陆续被制备出来,但通过组合制备方法可以在同一块衬底上制备出连续组分且空间可分辨的高质量外延薄膜。高通量组合制备及微区高速表征技术是材料基因计划(Materials Genome Initiative)的核心技术,可加速材料研发周期,保障新(超导)材料探索的可执行性。与北京材料基因平台密切合作。

2. 探索高温超导机理。选取对机理理解至关重要却缺乏高质量单晶块体的氧化物体系,制备出高质量的(亚稳态)单晶薄膜。工作围绕高温超导体系中与机理密切相关的量子临界效应来展开,包括组分掺杂、强磁场、静电场等多种调控手段。发挥组合外延薄膜的优势深入挖掘高温超导体系的多维电子态相图,揭示其丰富的物理内容。

3. 推进超导薄膜实用化进程。选取关键超导材料体系,制备出最好的的实用超导薄膜。这方面工作将主要围绕大面积薄膜制备、磁性表征和高频响应展开,与松山湖材料实验室实用化超导薄膜研究团队密切合作。

(详见)课题组网址http://combi-film.iphy.ac.cn/Home.html

过去的主要工作及获得的成果


1. 单晶薄膜推进高温超导体机理研究方面:a)国际上第一次从实验上给出了电子型铜氧化物过掺杂区域完整的相图(测量至20mK),该相图已被著名理论学家D.Scalapino在2012年为Rev. Mod. Phys.上撰写的综述所采用。b)首次发现电子型铜氧化物中超导电性和线性电阻(高温超导领域中常提到的“strange metal”)的散射率的强度密切相关。c)首次揭示电子型铜氧化物体系和超导边界有关的第二种量子涨落。相关结果以第一作者发布在Nature(2011)PNAS(2012),并在2012美国APS March Meeting邀请专场做邀请报告

2. 发展薄膜工艺探索新的超导家族方面:制备高质量的尖晶石氧化物LiTi2O4超导单晶薄膜,结合电输运和点接触隧道谱首次获得该体系的电子态相图,发现随温度升高其超导态上方存在轨道相关序,继续升温进入自旋涨落区域Nature Commun.(2015)(详细请点击),系统研究了该体系的电声作用、超导-绝缘相变、上临界磁场演化PRB(2019)在对尖晶石氧化物超导体的深入认识基础上,通过晶格结构设计成功在轨道有序绝缘体MgTi2O4实现超导电性PRB(2020),这是近百种尖晶石氧化物中的第二个超导案例。我们正在推开尖晶石家族通往超导领域的大门。

3. 高通量超导研究新范式方面:通过高通量组合薄膜技术发现了一种新的超导材料,是该技术所发现的第一个新超导材料,部分结果发布在APL Mater.(2013)。最近,我们首次利用组合激光分子束外延技术在1cm单晶衬底上成功制备出具有梯度化学组分的单一取向铜氧化物超导薄膜,部分结果以封面故事发布在Sci. China(2017)。和物理所郇庆团队研发新一代关键高通量设备Rev.Sci. Instrum. (2020),并撰写首篇高通量超导研究交叉方向综述SuST(2019)

代表性论文及专利


[35] X.J. Wei, H.-B. Li, Q.H. Zhang, D. Li, M.Y. Qin, L. Xu, W. Hu, Q. Huan, L. Yu, J. Miao, B.Y. Zhu, A. Kusmartseva, F.V. Kusmartsev, A.V. Silhanek, T. Xiang, W.Q. Yu, Y. Lin, L. Gu, P. Yu, Q.H. Chen, and K. Jin, A selective control of volatile and non-volatile superconductivity in an insulating copper oxide via ionic liquid gating, Sci. Bull. 65, 1607 (2020) Cover Story

[34] W. Hu, Z.P Feng, B.-C. Gong, G. He, D. Li, M.Y. Qin, Y.J. Shi, Q. Li, Q.H. Zhang, J. Yuan, B.Y. Zhu, K. Liu, T. Xiang, L. Gu, F. Zhou, X.L. Dong, Z.X. Zhao, and K. JinEmergent superconductivity in single-crystalline MgTi2O4 films via structural engineering, Phys. Rev. B 101, 220510R (2020)

[33] J.Q. Lin, J. Yuan, K. Jin, Z.P. Yin, G. Li, K.-J Zhou, X.Y. Lu, M. Dantz, T. Schmitt, H. Ding, H.Z. Guo, M.P.M. Dean, and X.R. Liu,Doping evolution of the charge excitations and electron correlations in electron-doped superconducting La2−xCexCuO4npj Quantum Mater. 4, 5 (2020)

[32] G. He, Z.X. Wei, Z.P. Feng, X.D. Yu, B.Y. Zhu, L. Liu, K. Jin, J. Yuan, and Q. Huan, Combinatorial laser molecular beam epitaxy system integrated with specialized low-temperature scanning tunneling microscopy, Rev. Sci. Instrum. 91, 013904 (2020)

[31] J. Yuan, V. Stanev, C. Gao, I. Takeuchi, and K. Jin, Recent advances in high-throughput superconductivity research, Supercond. Sci. Technol. 32, 123001(2019)  Topical Review

[30] Z.X. Wei, G. He, W. Hu, Z.P. Feng, X.J. Wei, C.Y. Ho. Q. Li, J. Yuan, C.Y. Xi, Z.S. Wang, B.Y. Zhu, F. Zhou, X.L. Dong, L. Pi, A. Kusmartseva, F.V. Kusmartsev, Z.X. Zhao, and K. Jin, Anomalies of upper critical field in the spinel superconductor LiTi2O4-δ, Phys. Rev. B 100, 094524 (2019)

[29] M. Rafique, Z.P. Feng, Z.F. Lin, X.J. Wei, M.H. Liao, D. Zhang, K. Jin, and Q.-K. Xue, Ionic Liquid Gating Induced Protonation of Electron-Doped Cuprate Superconductors, Nano Lett. 19 7775 (2019)

[28] W. Hu, Z.P. Feng, J. Yuan, T. Xiang, D.P. Li, B. Rosenstein, B.Y. Zhu, and K. Jin, Two-gap feature in optimally electron-doped cuprates, Phys. Rev. B 100, 094524 (2019)

[27]
M.Y. Qin, Z.F. Lin, Z.X. Wei, B.Y. Zhu, J. Yuan, I. Takeuchi, and K. Jin, High-throughput research on superconductivity, Chin. Phys. B 27, 127402 (2018) Topical Review

[26] M.C. Wang, H.S. Yu, J. Xiong, Y.F. Yang, S.N. Luo, K. Jin, and J. Qi, Bosonic excitations and electron pairing in an electron-doped cuprate superconductor, Phys. Rev. B 97, 155157 (2018)

[25] Y.L. Jia, G. He, W. Hu, H. Yang, Z.Z. Yang, H.S. Yu, Q.H. Zhang, J.N. Shi, Z.F. Lin, J. Yuan, B.Y. Zhu, L. Gu, H. Li, and K. Jin, The effects of oxygen in spinel oxide Li1+xTi2-xO4-δ thin films, Sci. Rep. 8, 3995 (2018)

[24] Z.P. Feng, J. Yuan, G. He, W. Hu, Z.F. Lin, D. Li, X.Y. Jiang, Y.L. Huang, S.L. Ni, J. Li, B.Y. Zhu, X.L. Dong, F. Zhou, H.B. Wang, Z.X. Zhao, and K. Jin, Tunable critical temperature for superconductivity in FeSe thin films by pulsed laser deposition, Sci. Rep. 8, 4039 (2018)

[23] T. Sarkar, P.R. Mandal, J.S. Higgins, Y. Zhao, H.S. Yu, K. Jin, and R.L. Greene, Fermi surface reconstruction and anomalous low-temperature resistivity in electron-doped La2−xCexCuO4 Phys. Rev. B 96, 155449 (2017)

[22] G. He, X.J. Wei, X. Zhang, L. Shan, J. Yuan, B.Y. Zhu, Y. Lin, and K. Jin, Normal-state gap in parent cuprate Pr2CuO4±δ Phys. Rev. B 96, 104518 (2017) 

[21] D. Chen, Y.L. Jia, T.T. Zhang, Z. Fang, K. Jin, P. Richard, and H. Ding, Raman study of electron-phonon coupling in thin films of the spinel oxide superconductor LiTi2O4Phys. Rev. B 96, 094501 (2017) 

[20] X. D. A. Baumans, J. Lombardo, J. Brisbois, G. Shaw, V. S. Zharinov, G. He, H.S. Yu, J. Yuan, B. Y. Zhu, K. Jin, R. B. G. Kramer, J. Van de Vondel, and A. V. Silhanek, Healing effect of controlled anti-electromigration on conventional and high-Tc superconducting nanowires, Small 13,1738004 (2017)

[19] H.S. Yu, J. Yuan, B.Y. Zhu, and K. Jin, Manipulating composition gradient in cuprate superconducting thin films, Sci. China-Phys. Mech. Astron. 60 087421(2017) Cover Story

[18] G. He, Y.L. Jia, X.Y. Hou, Z.X. Wei, H.D. Xie, Z.Z. Yang, J. Yuan, L. Shan, B.Y. Zhu, H. Li, L. Gu, K. Liu, T. Xiang, and K. Jin, Anisotropic electron-phonon coupling in the spinel oxide superconductor LiTi2O4
Phys. Rev. B 95, 054510 (2017) 

[17] D.N. Yuan, J. Yuan, Y.L. Huang, S.L. Ni, Z.P. Feng, H.X. Zhou, K. Jin, G.M. Zhang, X.L. Dong, F. Zhou, and Z.X. Zhao, Observation of Ising spin-nematic order and its close relationship to the superconductivity in FeSe single crystals, Phys. Rev. B 94, 060506R (2016)

[16] X. Zhang, H.S. Yu, G. He, W. Hu, J. Yuan, B.Y. Zhu, and K. Jin, Transport anomalies and quantum criticality in electron-doped cuprate superconductors, Physica C 525, 18(2016) Invited Review 

[15] K. Jin, W. Hu, B.Y. Zhu, D. Kim, J. Yuan, Y.J. Sun, T. Xiang, M.S. Fuhrer, I. Takeuchi, and R.L. Greene, Evolution of electronic states in n-type copper oxide superconductor via electric double layer gating, Sci. Rep. 6, 26642 (2016)

[14] J. Yuan, G. He, H. Yang, Y. Shi, B.Y.Zhu and K. Jin, Research trends in electron-doped cuprate superconductors, Sci. China-Phys. Mech. Astron. 58, 107401 (2015) Invited Review

[13] X. Dong, K. Jin, D.N. Yuan, H.X. Zhou, J. Yuan, Y.L. Huang, W. Hua, J.L. Sun, P. Zheng, W. Hu, Y.Y. Mao, M.W. Ma, G.M. Zhang, F. Zhou, and Z.X. Zhao, (Li0.84Fe0.16)OHFe0.98Se superconductor: Ion-exchange synthesis of large single crystal and anomalous normal state properties, Phys. Rev. B 92, 064515 (2015) 

[12] K. Jin, G. He, X. Zhang, S. Maruyama, S. Yasui, R. Suchoski, J. Shin,Y. Jiang, H.S. Yu, J. Yuan, L. Shan, F.V. Kusmartsev, R. L. Greene,  and I.Takeuchi, Anomalous magnetoresistance in the spinel superconductor LiTi2O4, Nature Commun. 6, 7183 (2015)

[11] X. Dong, H.X. Zhou, H.X. Yang, J. Yuan, K. Jin, F. Zhou, D.N. Yuan, L.L. Wei, J.Q. Li, X.Q. Wang, G.M. Zhang, and Z.X. Zhao, Phase diagram of (Li1-xFex)OHFeSe: a bridge between iron selenide and arsenide superconductors, J. Am. Chem. Soc. 137, 66 (2015) 

[10] H. Saadaoui, Z. Salman, H. Luetkens, T. Prokscha, A. Suter, W.A. MacFarlane, Y. Jiang, K. Jin, R.L. Greene, E. Morenzoni, and R.F. Kiefl, The phase diagram of electron-doped La2-xCexCuO4-δ, Nature Commun. 6, 6041 (2015) 

[9] K. Jin, R. Suchoski, S. Fackler, Y. Zhang, X. Pan, R. L. Greene, and I. Takeuchi, Combinatorial search of superconductivity in Fe-B composition spreads, APL Mater. 1, 042101 (2013) 

[8] N. P. Butch, K. Jin, K. Kirshenbaum, R. L. Greene, and J. Paglione, Quantum critical scaling at the edge of Fermi liquid stability in a cuprate superconductor, Proc. Natl. Acad. Sci. USA 109, 8440 (2012) 

[7] K. Jin, N. P. Butch, K. Kirshenbaum, J. Paglione, and R. L. Greene, Link between spin fluctuations and electron pairing in copper oxide superconductors, Nature 476, 73 (2011) See also Nature: News & Views highlight

[6] K. Jin, P. Bach, X. H. Zhang, U. Grupel, E. Zohar, I. Diamant, Y. Dagan, S. Smadici, P. Abbamonte, and R. L. Greene, Anomalous enhancement of the superconducting transition temperature of electron-doped La2-xCexCuO4 and Pr2-xCexCuO4 cuprate heterostructures, Phys. Rev. B 83, 060511(R) (2011) 

[5] K. Jin, X.H. Zhang, P. Bach, and R.L. Greene, Evidence for antiferromagnetic order in La2-xCexCuO4 from angular magnetoresistance measurements, Phys. Rev. B 80, 012501 (2009) 

[4] K. Jin, B. Y. Zhu, B. X. Wu, L. J .Gao, and B. R. Zhao, Low temperature Hall effect in electron-doped superconductor La2-xCexCuO4 thin films, Phys. Rev. B 78, 174521 (2008) 

[3] K. Jin, B. Y. Zhu, B. X. Wu, J. Vanacken, V. V. Moschalkov, B. Xu, L. X. Cao, X. G. Qiu, and B. R. Zhao, Normal-state transport in electron-doped La2-xCexCuO4 thin films in magnetic fields up to 40 Tesla,  Phys. Rev. B 77, 172503 (2008) 

[2] K. Jin, B. Y. Zhu, J. Yuan, H. Wu, L. Zhao, B. X. Wu, Y. Han, B. Xu, L. X. Cao, X. G. Qiu, and B. R. Zhao, Evolution of Charge Carriers for transport in electron-doped cuprate superconductor La1.89Ce0.11CuO4 thin films, Phys. Rev. B 75, 214501 (2007) 

[1] K. Jin, J. Yuan, L. Zhao, H. Wu, X. Y. Qi, B. Y. Zhu, L. X. Cao, X. G. Qiu, B. Xu, X. F. Duan, and B. R. Zhao, Coexistence of superconductivity and ferromagnetism in a dilute cobalt-doped La1.89Ce0.11CuO4±δ system, Phys. Rev. B 74, 094518 (2006)

目前的研究课题及展望


1.电子型高温超导铜氧化物体系。包括量子临界点的确认和调控,测量包括电磁、热及点接触隧道谱等,最终建立以铈、氧为化学参量,含温度、磁场等变量的高维相图。通过与空穴型体系的对比,理解铜氧化物的超导机制。

2.其它氧化物超导体系薄膜的制备及物理研究,如唯一尖晶石结构氧化物超导体等。

3.自主设计各类微区快速表征系统以及原位表征系统,适应高通量材料的表征需求。应用高通量组合薄膜制备与快速表征技术探索新(超导)材料。

4.寻找新的超导体系和实用化超导材料。以超薄膜或各类有序量对界面的调制为突破口,获取更高的超导转变温度。

培养研究生情况


培养博士6名,硕士4名。在读博士研究生4名,硕士研究生6名。拟每年招收1-2名学生。
欢迎优秀本科生来组实习(2018,2019,2020中国科学院大学优秀本科生指导教师;2017,2018,2019国科大固体物理主讲教师)。
历届博士毕业去向:
2017 于和善(马里兰, Prof. Ichiro Takeuchi)
2018 何格(洪堡学者, Prof. Rudi Hackl) 贾艳丽(清华,于浦教授)
2019 魏鑫健(北大,陈剑豪教授) 冯中沛 (松山湖材料实验室,赵忠贤院士) 胡卫(马里兰, Prof. Ichiro Takeuchi) 

其他联系方式


010-82649877,010-82649827(实验室)
010-82649927(办公室)

电话:

010-82649729

010-82649877

Email

kuijin@iphy.ac.cn