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| Biography |  |
| Dr. Liu received his bachelor degree from the university of Science and Technology of China in 2001 and his Ph.D. from the university of California, San Diego in 2008 in physics major. Then joined the X-ray scattering group at the Brookhaven National Laboratory U.S.A. in 2009 till 2013 as a Postdoc research assistant and visiting scholar. After that, he served as an associated research scientist at the Institute of physics, Chinese academy of Sciences(IOP, CAS) from 2013 to 2018. In 2018, Dr. Liu moved to ShanghaiTech University and became an associated professor in the school of physical science and technology. |
| Research Interests | |
| Dr. Liu’s main interest is in the symmetry breaking and phase transition in electron correlated systems,and utilizing various X-ray scattering techniques to understand their mechanisms to understand their mechanisms by probing the static and dynamic properties of the lattice, charge, spin and orbitals. In recent years he starts to explore X-ray scattering in the time domain, aiming to understand the non-thermal equilibrium evolution of the electron-correlated systems. In the coming years, Dr. Liu is responsible for building a time-resolved soft X-ray inelastic scattering beamline for Shanghai SCLF project. |
| Selected Publications | |
*(co-)first or (co-)corresponding author 1*. Strongly correlated charge density wave in La2-xSrxCuO4 evidenced by doping-dependent phonon anomaly, Phys. Rev. Lett. 124, 207005(2020)
2*. Doping evolution of the charge excitations and electron correlations in electron-doped superconducting La2-xCexCuO4, npj Quantum Materials, 5, 4 (2020)
3. Phononic Helical Nodal Lines with PT Protection in MoB2, Phys. Rev. Lett. 123, 245302 (2019)
4*. Recovery of photoexcited magnetic ordering in Sr2IrO4, J. Phys.: Conden. Matter 31 255801 （2019）
5*. Direct Detection of Dimer Orbitals in Ba5AlIr2O11, Phys. Rev. Lett. 122, 106401 (2019) 6*. Quantitative characterization of the nanoscale local lattice strain induced by Sr dopants in La1.92Sr0.08CuO4, Phys. Rev.Lett.120,197001 (2018) 7. Doping Dependence of Collective Spin and Orbital Excitations in the Spin-1 Quantum Antiferromagnet La2−xSrxNiO4 Observed by X-Rays, Phys. Rev. Lett. 118, 156402 (2017) 8*. Giant spin gap and magnon localization in the disordered Heisenberg antiferromagnet Sr2Ir1−xRuxO4, Phys. Rev. B 95, 121103(R) (2017) 9*. Anisotropic softening of magnetic excitations in lightly electron-doped Sr2IrO4, Phys. Rev. B 93,241102(R) (2016) 10*. Ultrafast energy- and momentum-resolved dynamics of magnetic correlations in the photo-doped Mott insulator Sr2IrO4, Nature Materials 15, 601 (2016) 11. Spin-orbit-driven magnetic structure and excitation in the 5d pyrochlore Cd2Os2O7, Nature communications, 7, 11651 (2016) 12. Momentum dependence in K-edge resonant inelastic x-ray scattering and its application to screening dynamics in CE-phase La0.5Sr1.5MnO4, Phys. Rev. B 90, 045111 (2014) 13*. Ferromagnetic Exchange Anisotropy from Antiferromagnetic Superexchange in the Mixed 3d-5d Transition-Metal Compound Sr3CuIrO6, Phys. Rev. Lett. 111, 057202 (2013) 14. Persistence of magnetic excitations in La2−xSrxCuO4 from the undoped insulator to the heavily overdoped non-superconducting metal, Nature Materials, 10.1038/nmat3723 (2013) 15. High-Energy Magnetic Excitations in the Cuprate Superconductor Bi2Sr2CaCu2O8+δ: Towards a Unified Description of Its Electronic and Magnetic Degrees of Freedom, Phys. Rev. Lett. 110, 147001 (2013) 16. Crystal-field splitting and correlation effect on the electronic structure of A2IrO3, Phys. Rev. Lett. 110, 076402 (2013) 17*. Testing the validity of the strong spin-orbit-coupling limit for octahedrally coordinated iridate compounds in a model system Sr3CuIrO6, Phys. Rev. Lett. 109, 157401 (2012) 18*. Long range magnetic ordering in Na2IrO3, Phys. Rev. B 83, 220403(R) (2011) 19. Surface melting of electronic order in La0.5Sr1.5MnO4, Phys. Rev. B 84, 165103 (2011) 20*. Four-Unit-Cell Superstructure in the Optimally Doped YBa2Cu3O6.92 Superconductor, Phys. Rev. Lett. 93, 157008 (2004)
Book chapter in “Diffuse Scattering and the Fundamental Properties of Materials” Inhomogeneous Lattice modulations and Fermi-Surface Effects in Yttrium Barium Copper Oxide Superconductors Z. Islam, X. Liu, S. K. Sinha and S. C. Moss Editors: R. I. Barabash, G. E. Ice and P. E. A. Turchi, Momentum Press, New Jersey (2009) |