I. Afanasyev-Charkin, D. Cooke, M. Ishimaru, B.L. Bennet, V.T.Gritsyna, J.R. Williams, K.E. Sickafus, “Refractive indices of metastable and amorphousphases in Ne+-ion irradiated magnesium–aluminate spinel,” in Optical Materials, Vol. 16, No. 3, pp. 397–402, 2001, ISSN: 0925-3467.

I. Afanasyev-Charkin, D. Cooke, M. Ishimaru, B.L. Bennet, V.T.Gritsyna, J.R. Williams, K.E. Sickafus, “Refractive indices of metastable and amorphousphases in Ne+-ion irradiated magnesium–aluminate spinel,” in Optical Materials, Vol. 16, No. 3, pp. 397–402, 2001, ISSN: 0925-3467.

L.K. Shrestha, J.-S. Wi, J. Williams, M. Akada, and K. Ariga, “Facile fabrication of silver nanoclusters as promising surface-enhanced raman scattering substrates,”in J. Nanosci. Nanotechnol., Vol. 14, No. 3, 2245—2251, 2014, ISSN: 1533-4880.

L.K. Shrestha, J.-S. Wi, J. Williams, M. Akada, and K. Ariga, “Facile fabrication of silver nanoclusters as promising surface-enhanced raman scattering substrates,”in J. Nanosci. Nanotechnol., Vol. 14, No. 3, 2245—2251, 2014, ISSN: 1533-4880.

J. R. Williams, I. Píš, M. Kobata, et al., “Observation and simulation of hard x ray photoelectron diffraction to determine polarity of polycrystalline zinc oxide films with rotation domains,” in J. Appl. Phys., Vol. 111, No. 3, pp. 033 525, 2012.

J. R. Williams, I. Píš, M. Kobata, et al., “Observation and simulation of hard x ray photoelectron diffraction to determine polarity of polycrystalline zinc oxide films with rotation domains,” in J. Appl. Phys., Vol. 111, No. 3, pp. 033 525, 2012.

T. Ogino, J.R. Williams, K. Watanabe, et al., “Effect of crystalline polarity on microstructure and optoelectronic properties of gallium-doped zinc oxide films deposited onto glass substrates,” in Thin Solid Films, Vol. 552, pp. 56–61, 2014, ISSN: 0040-6090.

T. Ogino, J.R. Williams, K. Watanabe, et al., “Effect of crystalline polarity on microstructure and optoelectronic properties of gallium-doped zinc oxide films deposited onto glass substrates,” in Thin Solid Films, Vol. 552, pp. 56–61, 2014, ISSN: 0040-6090.

T. Ohsawa, S. Ueda, M. Suzuki, Y. Tateyama, J.R. Williams, and N. Ohashi, “Investigating crystalline-polarity-dependent electronic structures of GaN by hard x-ray photoemission and ab-initio calculations,” in Appl. Phys. Lett., Vol. 107, No. 17, pp. 171604-1–171604-5, 2015.

T. Ohsawa, S. Ueda, M. Suzuki, Y. Tateyama, J.R. Williams, and N. Ohashi, “Investigating crystalline-polarity-dependent electronic structures of GaN by hard x-ray photoemission and ab-initio calculations,” in Appl. Phys. Lett., Vol. 107, No. 17, pp. 171604-1–171604-5, 2015.