2009
- H. C. Hsu, F. C. Chou, K. Koyama, K. Watanabe, and H. L. Liu, “Spin-phonon coupling in antiferromagnetic Bi2Sr2CoO6+d: An infrared reflectivity study’’, Phys. Rev. B 79, 155109-1~8 (2009).
C. L. Chen, S. M. Rao, K. J. Wang, F. C. Hsu, Y. C. Lee, C. L. Dong, T. S. Chang, J. F. Lee, M. C. Ling, H. L. Liu, and M. K. Wu, “Investigation of the unoccupied states in Sr2YRuO6 single crystals doped with Cu’’, New J. Phys. 11, 073024-1~8 (2009).
Y.-W. Tzeng, Y.-Y. Lin, C.-H. Huang, J.-M. Liu, H.-C. Chui, H. L. Liu, J. M. Stone, J. C. Knight, and S.-W. Chu,“Broadband tunable optical parametric amplification from a single 50 MHz ultrafast fiber laser’’, Optics Express 17, 7304-7309 (2009).
2010
- H. L. Liu, G. L. Carr, K. A. Worsley, R. C. Haddon, A. N. Caruso, L.-C. Tung, and Y. J. Wang, “Exploring the charge dynamics in graphite nanoplatelets by THz and infrared spectroscopy’’, New J. Phys. 12, 113012-1~11 (2010).
- C.-H. Du, C.-H. Yao, D.-C. Ling, M.-T. Tang, F.-C. Hsu, H. L. Liu, P. D. Hatton, and N. Ikeda, “The modulated structure and ferromagnetic insulating state in a nine-layer BaRuO3’’, J. Phys.: Condens. Matter 22, 036003-1~5 (2010).
- H. C. Hsu, W. L. Lee, J.-Y. Lin, H. L. Liu, and F. C. Chou, “Disrupted long-range spin-spiral ordering and electric polarization in the Zn-substituted quantum helimagnet LiCu2-xZnxO2’’, Phys. Rev. B 81, 212407-1~4 (2010).
- H. C. Hsu, J.-Y. Lin, W. L. Lee, T. Imai, Y. J. Kao. C. D. Hu, H. L. Liu, and F. C. Chou, “Nonmagnetic impurity perturbation to the quasi-two-dimensional quantum helimagnet LiCu2O2’’,Phys. Rev. B 82, 094450-1~13 (2010).
2011
- H. L. Liu, H. C. Hsueh, I. N. Lin, M. T. Yang, W. C. Lee, Y. C. Chen, C. T. Chia, and H. F. Cheng,“The dielectric properties of La(Mg0.5Ti0.5)O3 ceramics studied by Raman-scattering, infrared reflectivity spectroscopy, and first-principles calculations’’, J. Phys.: Condens. Matter 23, 225901-1~8 (2011).
- Y.-E. Su, Y.-C. Wen, Y.-L. Hong, H.-M. Lee, S. Gwo, Y.-T. Lin, L.-W. Tu, H. L. Liu, and C.-K. Sun,“Using hole screening effect on hole-phonon interaction to estimate hole density in Mg-doped InN’’, Appl. Phys. Lett. 98, 252106-1~3 (2011).
- S. M. Rao, J. K. Srivastava, M. K. Wu, B. H. Mok, C. L. Chen, M.L. Ling, H. L. Liu, Y. Y. Chen, and J.C. Ho, “Magnetic and superconducting properties of doped and undoped double perovskite Sr2YRuO6’’, J. Supercond. Nov. Magn. 24, 1249~1262 (2011).
- H. L. Liu, C. R. Huang, G. F. Luo, and W. N. Mei, “Optical properties of antiferroelectric Cs2Nb4O11: Absorption spectra and first-principles calculations’’, J. Appl. Phys. 110, 103515-1~5 (2011).
- S. M. Rao, B. H. Mok, M. C. Ling, C. T. Ke, T. C. Chen, I.-M. Tsai, Y.-L. Lin, H. L. Liu, C. L. Chen, F. C. Hsu, T. W. Huang, T. B. Wu, and M. K. Wu, “Convective solution transport-An improved technique for the growth of big crystals of the superconducting a-FeSe using KCl as solvent’’, J. Appl. Phys. 110, 113919-1~6 (2011).
2012
- T. Y. Ou-Yang, F.-T. Huang, G. J. Shu, W. L. Lee, M.-W. Chu, H. L. Liu, and F. C. Chou, “Electronic phase diagram of LixCoO2 revisited with potentiostatically deintercalated single crystals’’, Phys. Rev. B 85, 035120-1~8 (2012) .
- H. L. Liu, “Magneto-spectroscopy studies of graphite nanoplatelet film’’, J. Magn. Magn. Mater. 324, 3476~4377 (2012).
- M.-H. Chiang, Y.-S. Fu, T.-F. Guo, H. L. Liu, and W.-T. Lin, “Effects of Zn precursors on solvothermal synthesis of Cu2ZnSnSe4 nanocrystals’’, Materials Letters 83, 192~194 (2012).
- Y.-C. Wen, K.-J. Wang, H.-H. Chang, J.-Y. Luo, C.-C. Shen, H. L. Liu, C.-K. Sun, M.-J. Wang, and M.-K. Wu, “Gap opening and orbital modification of superconducting FeSe above the structural distortion’’, Phys. Rev. Lett. 108, 267002-1~5 (2012).
- C. C. Shen, C. T. Lin, L. J. Li, and H. L. Liu, “Charge dynamics and electronic structures of monolayer graphene with molecular doping’’, Appl. Phys. Lett. 101, 111907-1~4 (2012).
- Y. H. Tang, T. C. Han, H. L. Liu, and J. G. Lin, “Doping effects on the magnetoelectricity of bismuth ferrite nanoparticles’’, J. Supercond. Nov. Magn. 25 2753~2755 (2012).
2013
- H. L. Liu, M. K. Lin, Y. R. Cai, C. K. Tung, and Y. H. Chu, “Strain modulated optical properties in BiFeO3 thin films’’, Appl. Phys. Lett. 103, 181907-1~4 (2013).
- C. C. Shen, Y. T. Hsu, L. J. Li, and H. L. Liu, “Charge dynamics and electronic structures of monolayer MoS2 films grown by chemical vapor deposition’’, Appl. Phys. Express 6, 125801-1~4 (2013).