APPLIED PHYSICS GROUP
Prof. Xun-Li WANG
Chair Professor, Department of Physics
Executive Director, Hong Kong Institute for Advanced Study
City University of Hong Kong
 X. Xia, T.K. Lau, X. Guo, Y. Li, M. Qin, K. Liu, Z. Chen, X. Zhan, Y. Xiao, P.F. Chan, H. Liu, L. Xu, G. Cai, N. Li, H. Zhu, G. Li, Y. Zhu, T. Zhu, X. Zhan, X.-L. Wang, X. Lu, "Uncovering the out-of-plane nanomorphology of organic photovoltaic bulk heterojunction by GTSAXS", Nature Communications, 12, 1, 1-10 (2021).
 S. Lan, L. Zhu, Z. D. Wu, L.n Gu, Q. H. Zhang, H. H. Kong , J. Z. Liu, R. Y. Song, S. N. Liu, G. Sha, Y. G. Wang, Q. Liu, W. Liu, P. Y. Wang, C. T. Liu, Y. Ren, and X.-L. Wang, “A medium-range structure motif linking amorphous and crystalline states,” Nature Materials (2021). https://rdcu.be/ckZHa
 H.Y. He, M. Naeem, F. Zhang, Y.L. Zhao, S. Harjo, T. Kawasaki, B. Wang, X.L. Wu, S. Lan, Z.D. Wu, W. Yin, Y. Wu, Z.P. Lu, J.J. Kai, C.T. Liu, X.-L. Wang, “Stacking Fault Driven Phase Transformation in CrCoNi Medium Entropy Alloy”, Nano Letters, 21, 3, 1419–1426 (2021).
 X. Y. Li, H. P. Zhang, S. Lan, D. L. Abernathy, T. Otomo, F. W. Wang, Y. Ren, M. Z. Li, and X.-L. Wang*, “Observation of High-Frequency Transverse Phonons in Metallic Glasses”, Physical Review Letters, 124, 225902 (2020).
[CrossRef] [Google Scholar] [CityU Research Story]
 M. Naeem, H. Y. He, F. Zhang, H. L. Huang, S. Harjo, T. Kawasaki, B. Wang, S. Lan, Z. D. Wu, F. Wang, Y. Wu, Z. P. Lu, Z. W. Zhang, C. T. Liu, and X.-L. Wang*, "Cooperative deformation in high-entropy alloys at ultralow temperatures", Science Advances, 6, eaax4002 (2020).
[CrossRef] [Google Scholar] [CityU Research Story] [PressRelease from Japan Atomic Energy Agency] (Selected to be Croucher Foundation feature news [Croucher News])
 X. Y. Li, P.-F. Liu, E. Y. Zhao, Z. G. Zhang, T. Guidi, M. Le, M. Avdeev, K. Ikeda, T. Otomo, M. Kofu, K. Nakajima, J. Chen, L. H. He, Y. Ren, X.-L. Wang, B. T. Wang, Z. F. Ren, H. Z. Zhao, and F. W. Wang, “Ultralow Thermal Conductivity from Transverse Acoustic Phonon Suppression in Distorted Crystalline α-MgAgSb”, Nature Communications, 11, 1-9 (2020).
 C. C. Yuan, F. Yang, X. K. Xi, C. L. Shi, D. Holland-Moritz, M. Z. Li, F. Hu, B. L. Shen, X.-L. Wang, A. Meyer, and W. H. Wang, “Impact of hybridization on metallic-glass formation and design,” Materials Today, 32, 26-34 (2020).
 S. Lan, C. Y. Guo, W. Z. Zhou, Y. Ren, J. Almer, C. Q. Pei, H. Hahn, C. T. Liu, T. Feng*, X.-L. Wang*, and H. Gleiter, “Engineering medium-range order and polyamorphism in a nanostructured amorphous alloy,” Communication Physics, 2, 1-9 (2019).
 B. Wang, H. Y. He, M. Naeem, S. Lan, S. Harjo, T. Kawasaki, Y. X, Nie, H.W. Kui, T. Ungár, D. Ma, A. D Stoica, Q. Li, Y. Ke, C. T. Liu, and X.-L. Wang*, “Deformation of CoCrFeNi high entropy alloy at large strain,” Scripta Materialia, 155, 54-57 (2018).
 S. Lan, Y. Ren, X. Y. Wei, B. Wang, E. P. Gilbert, T. Shibayama, S. Watanabe, M. Ohnuma, and X.-L. Wang*, “Hidden Amorphous Phase and Reentrant Supercooled Liquid in Pd-Ni-P Metallic Glasses,” Nature Communications 8, 14679 (2017).
[CrossRef] [Google Scholar] [Featured in Nature Communications collection series, Metallurgy]
This work solved a 40-year old scientific mystery. The story was covered widely in news media in English, Chinese and Japanese. Examples:
[Phys.org] [National Natural Science Foundation of China] [Sina News] [PressRelease from Hokkaido University]
 H. S. Chen, and X.-L. Wang*, “China's first pulsed neutron source,” Nature Materials, 15, 689 – 691 (2016).
 A. Pramanick, M. R. V. Jørgensen, S. O. Diallo, A. D. Christianson, J. A. Fernandez-Baca, C. Hoffmann,
X. Wang, S. Lan, and X.-L. Wang, “Nanoscale Atomic Displacements Ordering for Enhanced Piezoelectric
Properties in Lead-free ABO₃ Ferroelectrics,” Advanced Materials., 27, 4330-4335 (2015).
[CrossRef] [Google Scholar] (Front cover)
 A. Pramanick, X.-L. Wang*, A. D. Stoica, C. Yu, Y. Ren, S. Tang, and Z. Gai, “Kinetics of magnetoelastic twin boundary motion in ferromagnetic shape memory alloys,” Physical Review Letters, 112, 217205 (2014).
 S. Cheng, S. Y. Lee, C. Lei, L. Li, J. Almer, X.-L. Wang, Y. M. Wang, T. Ungar, P. K. Liaw, “Uncommon Deformation Mechanisms during Fatigue-Crack Propagation in Nanocrystalline Alloys,” Physical Review Letters, 110, 135501 (2013).
 Y. Wu, D. Q. Zhou, W. L. Song, H. Wang, Z.Y. Zhang, D. Ma, X. L. Wang, and Z. P. Lu, “Ductilizing Bulk Metallic Glass Composite by Tailoring Stacking Fault Energy,” Physical Review Letters, 109, 245506 (2012).
 D. Ma, A. D. Stoica, X.-L. Wang*, Z. P. Lu, B. Clausen, D. W. Brown, “Moduli inheritance and the weakest link in metallic glasses,” Physical Review Letters, 108, 085501 (2012).
[CrossRef] [Google Scholar] [Covered by News and Views, Nature Materials]
 X.-L. Wang, K. An, L. Cai, Z. Feng, S. E. Nagler, C. Daniels, K. J. Rhodes, D. L. Wood, III., A. D. Stoica, H. D. Skorpenske, C. Liang, W. Zhang, Y. Kim, Y. Qi, and S. J. Harris, “Visualizing the chemistry and structure dynamics in Li-ion batteries by in-situ neutron diffraction,” Scientific Report, 2, 747 (2012).
 I. Robertson, C. Schuh, J. Vetrono, N. Browning, D. Field, D. Juul-Jensen, M. Miller, I. Baker, D. Dunand, R. Dunin-Borkowski, B. Kabius, T. Kelly, S. Lorano-Perez, A. Misra, G. Rohrer, T. Rollett, M. Taheri, G. Thomson, M. Uchic, X.-L. Wang, G. Was, “Towards an integrated materials characterization toolbox,” a viewpoint paper in Journal of Materials Research, 26, 1341-1383 (2011).
 Z. W. Zhang, C. T. Liu, X.-L. Wang, K. C. Littrell, M. K. Miller, K. An, and B. A. Chin, “From embryos to precipitates: a study of nucleation and growth in a multicomponent ferritic steel,” Physical Review B, 84, 174114 (2011).
 S. Cheng, Y. Zhao, Y. Wang, Y. Li, X.-L. Wang, P. K. Liaw, and E. J. Lavernia, “Structure modulation in nanocrystalline NiFe driven by cyclic deformation,” Physical Review Letters, 104, 255501 (2010).
 S. Cheng, Y. Zhao, Q. Wei, X.-L. Wang, Y. Ren, P. K. Liaw, H. Choo, and E. J. Lavernia, “Substantial Deformation of Nanocrystalline NiFe Alloy under Dynamic Loading,” Advanced Materials, 21, 5001–5004 (2009).
 S. Cheng, A.D. Stoica, X.-L. Wang*, Y. Ren, J. Almer, J.A. Horton, C.T. Liu, B. Clausen, D.W. Brown, P.K. Liaw, and L. Zuo, “Deformation cross-over: from nano to meso scales,” Physical Review Letters, 103, 035502 (2009).
[CrossRef] [Google Scholar] (Selected for inclusion in August 3 issue of Virtual Journal of Nanoscale Science & Technology)
 D. Ma, A. D. Stoica, and X.-L. Wang*, “Power-law scaling and fractal nature of the medium range order in metallic glasses,” Nature Materials, 8, 30-34 (2009).
 L. Yang, M. K. Miller, X.-L. Wang*, C. T. Liu, A. D. Stoica, D. Ma, J. Almer, and D. Shi, “Nano-scale solute
partitioning in devitrified bulk metallic glass,” Advanced Materials, 21, 305-308 (2009).
[CrossRef] [Google Scholar] (Featured on the cover)
 C. T. Liu, C. L. Fu, M. F. Chrisholm, and J. R. Thompson, Krcmar, and X.-L. Wang, “Magnetism and solid solution effects in NiAl (40%Al) alloys,” Progress in Materials Science, 52, 352-370 (2007).
 X.-L. Wang, “Application of neutron diffraction to engineering problems,” review article in JOM, March, 53-58 (2006).
[Restricted access to The Minerals, Metals & Materials Society (TMS) members only]
 X.-L. Wang*, T. M. Holden, G. Q. Rennich, A. D. Stoica, P. K. Liaw, H. Choo, and C. R. Hubbard, “VULCAN – The Engineering Diffractometer at the SNS,” Physica B, 385-386, 673-675 (2006).
 X.-L. Wang*, J. Almer, Y. D. Wang, J. K. Zhao, C. T. Liu, A. D. Stoica, D R. Haeffner, and W. H. Wang, “In-situ Synchrotron Study of Phase Transformation Behaviors in Bulk Metallic Glass Using Simultaneous X-ray Diffraction and Small Angle Scattering,” Physical Review Letters, 91, 265501 (2003).
 Y.D. Wang, H. Tian, A. D. Stoica, X.-L. Wang*, P. K. Liaw, and J.W. Richardson, “Development of Large Grain-Orientation-Dependent Residual Stresses in a Cyclically-Deformed Alloy,” Nature Materials, 2, 101-106 (2003).
[CrossRef] [Google Scholar] [Covered by Materials Today]
 W.-T. Lee and X.-L. Wang, "IDEAS, a General-purpose Computer Program for Simulation of Neutron Scattering Instruments," Neutron News, 13 (No. 4), 30-34 (2002).
 X.-L. Wang, “Conceptual Design of the SNS Engineering Diffractometer”, SNS Report No. IS-188.8.131.52-6035-RE-A-00 (2000).
 Z. Wang, X.-L. Wang, J. A. Fernandez-Baca, D. C. Johnston, and D. Vaknin, "Antiferromagnetic Ordering and Paramagnetic Behavior of Ferromagnetic Clusters in BaCuO2+x," Science, 264, 402-404 (1994).
 L. L. Miller, X. L. Wang, S. X. Wang, C. Stassis, D. C. Johnston, J. Faber Jr., and C.-K. Loong, "Synthesis, Structure and Properties of Sr2CuO2Cl2," Physical Review B, 41, 1921 (1990).