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昌峻
职称/职务: 研究员
电话:
传真:
电子信箱: junchang@snnu.edu.cn
出生年月:
办公地点: 致知楼3540

教育背景:

2001-2005 博士中国科学院理论物理研究所和研究生院导师:向涛 院士

1998-2001 硕士,中国科学院理化技术研究所和研究生院,导师:何豫生 研究员

1989-1993 学士,华中科技大学

研究经历:

2013.8-目前 研究员,威尼斯人登录网址物理与信息技术学院

2012.8-2012.12 访问学者,德国马克斯普朗克复杂系统物理所,Roderich Moessner

2008-2011 博士后美国北伊利诺大学 阿贡国家实验室Michel van Veenendaal

2005-2008 博士后德国马克斯普朗克复杂系统物理所,Peter Fulde

1993-1998 助理工程师华东电子工程研究所

讲授课程:

2014 — 固体物理

2014 — 量子统计力学

2017 — 超导物理

研究方向与背景:

凝聚态量子多体理论  非平衡动力学理论

 

 

 

 

 

 


 

 



    在铜氧化物超导中提出二象费米子超导模型,奇异金属可以理解为被反铁磁涨落重整化的稀薄费米气体,赝能隙的形成类似近藤绝缘体机制,氧上的载流子通过铜的反铁磁自旋涨落配对形成超导;在2019年发现的镍基超导中提出洪特—海森堡模型;在超导对磁激发的重整化效应研究中,揭示了费米子与玻色子相互作用可以产生新的玻色子或集体玻色的一种机制;在谱函数随温度变化的超导KOsO中,首先提出非谐振光学声子配对电子的超导机制,把强耦合超导 Eliashberg 方程推广到可研究温度依赖的谱函数,并把爱因斯坦的固体比热模型扩展到描述频率依赖温度的声子模;在方钴矿结构PrOsSb超导中提出重费米子中的多极激发配合声子的超导机制及其对导电电子质量的重整化;提出d-波超导中强烈改变费米面附近态密度的非磁性杂质诱导的共振束缚态对磁化率的贡献等效为一局域磁矩;还研究了超导,纳米碳管和单层石墨的杂质电磁效应,高温超导的层间隧穿谱等;研究了几何结构阻挫对自旋—轨道绝缘体的磁激发的影响,预言了5d系统SrIrO中可能存在axion拓扑绝缘体;解析证明了非磁性离子的自旋—轨道耦合可以在磁性材料中诱导出磁各向异性;提出高压诱导范德瓦尔斯键向共价键转变;探索非中心对称超导/绝缘体/p-波超导的约瑟夫森效应

    在开放的非平衡系统中引入环境诱导系统态跃迁的耗散算符, 发展出保持系统态几率守恒的耗散薛定谔方程id|>/dt=(H+iD)|>超越玻恩和马尔可夫近似;提出超快非辐射弛豫能量准则,法国的Collet研究组称之奠定了这方面的理论基础 (Angew. Chem. Int. Edit. 53, 38632014)提出非绝热—绝热的动力学量子相变; 提出把泵浦能转化成机械功在单温度微环境中工作的新型量子热机;研究了反铁磁系统的超快退磁过程以及光激发过渡金属配合物和磁性掺杂的准一、二维系统的超快动力学演化。

我们的工作在Phys. Rev. Lett., npj quantum materials, Phys. Rev. B, J. Chem. Phys., J. Phys. Chem. Lett.等杂志发表,被 Nature, Rev. Mod. Phys., Adv. Phys., Chem. Soc. Rev., Acc. Chem. Res., PRL, PRB, JCP, Nat. Commun., JACSAngew. Chem. Int. Edit.等杂志引用。此外,专著《d波超导体》Novel Superfluids, Correlated Electrons in Quantum Matter, Spin-Crossover Materials: Properties and Applications, Electron Spin Interactions in Chemistry and Biology, X-Ray Absorption and X-Ray Emission Spectroscopy: Theory and Applications, Electron Spin Interactions in Chemistry and Biology》和《Chemistry in Action: making Molecular Movies with Ultrafast Electron Diffraction and Date Science也介绍了我们的工作。

 

部分科研论文:

25. You-wei Fang, Yu-ting Zheng, Jun Chang*, "Study of quantum Otto heat engine using driven-dissipative Schrödinger equation", arXiv: 2010.04856.

24. Jun Chang*, Jize Zhao, Yang Ding, "Hund-Heisenberg model in superconducting infinite-layer nickelates", arXiv: 1911.12731, Eur. Phys. J. B 93, 220 (2020).

23. Jun Chang*, Jize Zhao, Yang Ding, "Anisotropic superexchange through nonmagnetic anions with spin-orbit coupling", arXiv:1910.07118, Eur. Phys. J. B 93, 159 (2020).

22. R. Sereika, C. Park, C. Kenney-Benson, S. Bandaru, N. J. English, Q. Yin, H. Lei, N. Chen, C-J Sun, S. M. Heald, J. Ren, Jun Chang, Y. Ding and H-k Mao, "Novel Superstructure-Phase Two-Dimensional Material 1T‑VSe2 at High Pressure", J. Phys. Chem. Lett. 11, 380−386 (2020).

21. H. Du, J. Liu, N. Zhang, Jun Chang, W. Jin, C. Li, G. Lefkidis and W. Hübner, " Theoretical study of laser-induced ultrafast spin dynamics in small iron-benzene clusters and of related laser and magnetic-field effects", Phys. Rev. B 99, 134430 (2019).

20. J Zhang*, D Yan, S Yesudhas, H Deng, H Xiao, B Chen, R Sereika, X Yin, C Yi, Y Shi, Z Liu, E. M. Pärschke, C-C Chen, Jun Chang*, Y Ding* and H-K Mao, "Lattice frustration in spin-orbit Mott insulator Sr3Ir2O7 at high pressure", npj Quantum Materials 4, 23 (2019).

19. N. Zhang, H. Du, Jun Chang, W. Jin, C. Li, G. Lefkidis and W. Hübner,  "Ab initio study of ultrafast laser-induced spin flip, spin-flip transfer, and spin crossover in ComBz+/0n clusters (m, n = 1, 2)",  Phys. Rev. B 98, 104431 (2018).

18. J. Zhang, Y. Ding, C-C. Chen, Z. Cai, J. Chang, B. Chen, X. Hong, A. Fluerasu, Y Zhang, C-S. Ku, D. Brewe, S. Heald, H. Ishii, N. Hiraoka, K-D. Tsuei, W. Liu, Z. Zhang, Y. Q. Cai, G. Gu, T. Irifune, and H-k. Mao, "Evolution of a Novel Ribbon Phase in Optimally Doped Bi2Sr2CaCu2O8+δ at High Pressure and Its Implication to High-TC Superconductivity", J. Phys. Chem. Lett. 9, 4182 (2018).

17. Feng Guo, Na Zhang, Wei Jin, and Jun Chang*, "Model of ultrafast demagnetization driven by spin-orbit coupling in a photoexcited antiferromagnetic insulator Cr2O3", arXiv:1705.02439, J. Chem. Phys. 146, 244502 (2017).

16. Jun Chang, Jize Zhao, "Theory of dual fermion superconductivity in hole-doped cuprates", arXiv:1606.03656    Eur. Phys. J. B 90, 154 (2017).

15. Jun Chang, Ilya Eremin, Jize Zhao,  "Model of nonadiabatic-to-adiabatic dynamical quantum phase transition in photoexcited systems", arXiv:1407.6779 Phys. Rev. B 90, 104305 (2014).

14. Jize Zhao, Shijie Hu, Jun Chang, Fawei Zheng, Ping Zhang, Xiaoqun Wang, "The evolution of magnetic structure driven by a synthetic spin-orbit coupling in two-component Bose-Hubbard model", arXiv:1403.1316, Phys. Rev. B 90, 085117 (2014).

13. Jize Zhao, Shijie Hu, Jun Chang, Ping Zhang, and Xiaoqun Wang, "Ferromagnetism in a two-component Bose-Hubbard model with synthetic spin-orbit coupling", arXiv:1308.6710, Phys. Rev. A 89, 043611 (2014).

12. Jun Chang, A. J. Fedro, and M. van Veenendaal, "Ultrafast X-ray spectroscopy as a probe of nonequilibrium dynamics in ruthenium complexes", arXiv:1003.4752, Chem. Phys. 407, 65 (2012).

封面文章, News on PhysOrg

11. Y. Ding, Z.H. Cai, Q.Y. Hu, H.W. Sheng, J. Chang, R. J. Hemley and W. L. Mao, "Nanoscale Diffraction Imaging of the High-Pressure Transition in Fe1-xO", Appl. Phys. Lett. 100, 041903 (2012).

News on PhysOrg, ZeitNews

10. Jun Chang, A. J. Fedro, and M. van Veenendaal, "Ultrafast Cascading Theory of Intersystem Crossings in Transition-Metal Complexes", arXiv:1004.4823, Phys. Rev. B 82, 075124 (2010).

(Chang et al. laid the theoretical base)

9. M. van Veenendaal, Jun Chang, and A. J. Fedro, "Model of ultrafast intersystem crossing in photoexcited transition-metal organic compounds", arXiv:1002.1467, Phys. Rev. Lett. 104, 067401 (2010).

News on PhysOrg

8. Jun Chang, Ilya Eremin and Peter Thalmeier, "Cooper-pair formation by anharmonic rattling modes in the β-pyrochlore superconductor KOs2O6", arXiv:0803.2491, New Journal of Physics 11, 055068 (2009).

7. P. Thalmeier, T. Takimoto, J. Chang, I. Eremin, "Multipolar Order and Superconductivity in f-Electron Compounds", J. Phys. Soc. Jpn. Suppl. A, 77, 43 (2008).

6. Jun Chang, Ilya Eremin, Peter Thalmeier, and Peter Fulde, "Inelastic rare-earth impurity scattering and superconductivity in filled skutterudite La1-xPrxOs4Sb12", arXiv:0709.3849, Phys. Rev. B 76, 220510(R) (2007).
5. Jun Chang, I. Eremin, P. Thalmeier, and P. Fulde, "Theory of magnetic excitons in the heavy-fermion superconductor UPd2Al3", arXiv:cond-mat/0609550, Phys. Rev. B 75, 024503 (2007).

4. W. Q. Ran, J. Chang, Y. H. Su, H. T. Lu, H. G. Luo, T. Xiang, "Geometrical Structure Effect on Localization Length of Carbon Nanotubes", cond-mat/0412525, Chinese Phys. Lett. 22 , 2375 (2005).

3. H. T. Lu, Y. H. Su, L. Q. Sun, J. Chang, H. G. Luo and T. Xiang, "Thermodynamic properties of tetrameric bond-alternating spin chains", cond-mat/0412275, Phys. Rev. B 71, 144426 (2005).

2. J. Chang, Y. H. Su, H. G. Luo, H. T. Lu and T. Xiang, "Effect of impurity resonance states on the NMR spectra of high-Tc cuprates", cond-mat/0405480, Phys. Rev. B 70, 212507 (2004).

1. Y. H. Su, J. Chang, H. T. Lu, H. G. Luo and T. Xiang, "Effects of bilayer coupling on tunneling conductance of double-layer high Tc cuprates", cond-mat/0312091, Phys. Rev. B 68, 212501 (2003).

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