James Williams

Emeritus Professor, MSc DipEd NE, PhD DSc ANU, DSc W.Aust., FAmIP, FAIP, FAA, FInstP, CPhys, SMIEEE

  • The University of Western Australia (M013), 35 Stirling Highway, Room 4.16, Physics Building, Perth campus

    6009 Perth

    Australia

  • 2876 Citations
  • 26 h-Index
1959 …2019
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Research Output 1959 2019

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Article
2019

Aluminum oxyhydroxide-doped PMMA hybrids powder prepared via facile one-pot method towards copper ion removal from aqueous solution

Ghamari, M., Imani, A., Williams, J. F. & Ghasemifard, M., 7 Nov 2019, In : International Nano Letters. 9 p.

Research output: Contribution to journalArticle

Open Access
dielectric properties
ceramics
optical properties
microstructure
hot pressing
3 Citations (Scopus)

Influence of Zn 2+ doping on the lattice defects and photoluminescence studies of Sr 2 CeO 4 :Eu 3+ nanophosphor: Applications for data encryption strategies

Sudheendra, H. S., Darshan, G. P., Basavaraj, R. B., Naik, Y. V., Premakumar, H. B., Nagabhushana, H., Williams, J. F., Hareesh, K. & Kokila, M. K., 1 Apr 2019, In : Optical Materials. 90, p. 159-171 13 p.

Research output: Contribution to journalArticle

Crystal defects
Cryptography
Photoluminescence
Doping (additives)
photoluminescence
2 Citations (Scopus)

One-step bacterial assisted synthesis of CdS/rGO nanocomposite as Hydrogen production catalyst

Hareesh, K., Dhole, S. D., Phase, D. M. & Williams, J. F., Feb 2019, In : Materials Research Bulletin. 110, p. 82-89 8 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

One-step gamma radiation aided diffusion of Ag-Au alloy nanoparticles into polycarbonate and its application towards the reduction of 4-Nitrophenol

Hareesh, K., Sunitha, D. V., Dhole, S. D., Bhoraskar, V. N., Phase, D. M. & Williams, J., 1 Sep 2019, In : Radiation Physics and Chemistry. 162, p. 126-130 5 p.

Research output: Contribution to journalArticle

polycarbonates
gamma rays
nanoparticles
silver alloys
gold alloys
2018

Gamma radiation-assisted diffusion of Au nanoparticles in nanocavities of polycarbonate: Nano-structural and surface properties

Hareesh, K., Sunitha, D. V., Ramya, P., Williams, J. F., Samarin, S., Dhole, S. D. & Sanjeev, G., 1 Jan 2018, In : Materials Research Express. 5, 1, 015304.

Research output: Contribution to journalArticle

polycarbonate
Polycarbonates
Gold
Gamma rays
Surface properties
Orbits
asymmetry
Spectroscopy
Scattering
orbits
2017
5 Citations (Scopus)

Enhanced supercapacitance behaviour of low energy ion beam reduced graphene oxide

Hareesh, K., Shateesh, B., Williams, J. F., Asokan, K., Phase, D. M., Priya Madhuri, K., Haram, S. K. & Dhole, S. D., 1 Jun 2017, In : Materials Research Express. 4, 6, 065018.

Research output: Contribution to journalArticle

Graphite
Oxides
Graphene
Ion beams
Ions
6 Citations (Scopus)

Positron annihilation spectroscopy and photoluminescence investigation of LaOF: Tb3+ nanophosphor fabricated via ultrasound assisted sonochemical route

Suresh, C., Nagabhushana, H., Darshan, G. P., Basavaraj, R. B., Sharma, S. C., Sunitha, D. V., Daruka Prasad, B., Williams, J. & Krishnaiah, H., 1 Oct 2017, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 224, p. 28-39 12 p.

Research output: Contribution to journalArticle

Positron annihilation spectroscopy
positron annihilation
Photoluminescence
Ultrasonics
routes

Spin correlation tensor for measurement of quantum entanglement in electron-electron scattering

Tsurikov, D. E., Samarin, S. N., Williams, J. F. & Artamonov, O. M., 14 Apr 2017, In : Journal of Physics B: Atomic, Molecular and Optical Physics. 50, 7, 075502.

Research output: Contribution to journalArticle

electron scattering
tensors
electrons
electron spin
electron states
5 Citations (Scopus)

Ultra high stable supercapacitance performance of conducting polymer coated MnO2 nanorods/rGO nanocomposites

Hareesh, K., Shateesh, B., Joshi, R. P., Williams, J. F., Phase, D. M., Haram, S. K. & Dhole, S. D., 2017, In : RSC Advances. 7, 32, p. 20027-20036 10 p.

Research output: Contribution to journalArticle

Open Access
Conducting polymers
Nanorods
Nanocomposites
Capacitance
Chlorates
2016
positrons
angular distribution
oxygen
adsorption
energy
21 Citations (Scopus)

Bio-green synthesis of Ag-GO, Au-GO and Ag-Au-GO nanocomposites using Azadirachta indica: Its application in SERS and cell viability

Hareesh, K., Williams, J., Dhole, N. A., Kodam, K. M., Bhoraskar, V. N. & Dhole, S. D., 2016, In : Materials Research Express. 3, 7, 9 p., 075010.

Research output: Contribution to journalArticle

Graphite
Graphene
Nanocomposites
Gold
Oxides
3 Citations (Scopus)

Elastic versus inelastic spin-polarized electron scattering from a ferromagnetic surface

Samarin, S. N., Artamonov, O. M., Baraban, A. P., Kostylev, M., Guagliardo, P., Berakdar, J. & Williams, J. F., 24 Oct 2016, In : Physical Review B - Condensed Matter and Materials Physics. 94, 15, 155440.

Research output: Contribution to journalArticle

Open Access
Electron scattering
Elastic scattering
Magnetization
electron scattering
asymmetry
3 Citations (Scopus)

Structural and antibacterial properties of a γ-radiation-assisted, in situ prepared silver–polycarbonate matrix

Deore, A. V., Hareesh, K., Ramya, P., Ianni, E., Guagliardo, P., Samarin, S., Williams, J. F., Sanjeev, G., Dahiwale, S. S., Kanjilal, D., Dhole, N. A., Kodam, K. M., Bhoraskar, V. N. & Dhole, S. D., 20 Sep 2016, In : Journal of Applied Polymer Science. 133, 36, p. 1-10

Research output: Contribution to journalArticle

polycarbonate
Polycarbonates
Radiation
Free volume
Silver
2015
1 Citation (Scopus)
143 Downloads (Pure)

Controlling spin-orbit interaction in a ferromagnetic Fe/Au double layer

Samarin, S., Artamonov, O. M., Baraban, A. P., Kostylev, M., Guagliardo, P. & Williams, J., 29 Jan 2015, In : Applied Physics Letters. 106, p. 1-5 5 p., 042404.

Research output: Contribution to journalArticle

Open Access
File
spin-orbit interactions
asymmetry
orbits
electron spectroscopy
rocks
1 Citation (Scopus)

Effect of irradiation with argon ions on elastic scattering of spin-polarized electrons from W(110) surface

Dhal, S., Chatterjee, S., Samarin, S., Williams, J., Giebels, F., Gollisch, H. & Feder, R., Feb 2015, In : Radiation Effects and Defects in Solids. 170, 2, p. 144-151

Research output: Contribution to journalArticle

Elastic scattering
Argon
elastic scattering
Electron scattering
Multiple scattering
3 Citations (Scopus)
141 Downloads (Pure)
Open Access
File
Surface states
electron impact
Electrons
electrons
energy
6 Citations (Scopus)

Entanglement manifestation in spin resolved electron-electron scattering

Artamonov, O. M., Samarin, S., Vetlugin, A. N., Sokolov, I. V. & Williams, J., Nov 2015, In : Journal of Electron Spectroscopy and Related Phenomena. 205, p. 66-73 8 p.

Research output: Contribution to journalArticle

Electron scattering
electron spin
electron scattering
Electrons
electrons
134 Downloads (Pure)

Excitation of plasmons in Ag/Fe/W structure by spin-polarized electrons

Samarin, S., Artamonov, O. M., Baraban, A. P., Kostylev, M., Guagliardo, P. & Williams, J., 11 Sep 2015, In : Applied Physics Letters. 107, 10, p. 101602-1 - 101602-5

Research output: Contribution to journalArticle

File
plasmons
excitation
electrons
incidence
energy dissipation
2 Citations (Scopus)

Single and couple doping ZnO nanocrystals characterized by positron techniques

Pasang, T., Namratha, K., Guagliardo, P., Byrappa, K., Ranganathaiah, C., Samarin, S. & Williams, J., 2015, In : Materials Research Express. 2, 4, p. 1-12

Research output: Contribution to journalArticle

Zinc Oxide
Positrons
Zinc oxide
Nanocrystals
Doping (additives)
2014
2 Citations (Scopus)
209 Downloads (Pure)

Scattering of free electrons by free electrons

Williams, J., Samarin, S., Targhagh, O., Hilton, A., Kathi, S., Guagliardo, P., Praviça, L. & Artamonov, O. M., 25 Jun 2014, In : Physical Review A - Atomic, Molecular, and Optical Physics. 89, 6, p. 062717-1 - 062717-6 6 p., 062717.

Research output: Contribution to journalArticle

Open Access
File
free electrons
scattering
forward scattering
scattering cross sections
intersections
2 Citations (Scopus)

Vacancy-type defects study on ultra-fine grained aluminium processed by severe plastic deformation

Su, L., Lu, C., Deng, G. Y., Tieu, K. A., Zhang, L. C., Guagliardo, P., Samarin, S. & Williams, J., 2014, In : Science of Advanced Materials. 6, 7, p. 1338-1345

Research output: Contribution to journalArticle

Aluminum
Vacancies
Plastic deformation
Defects
Equal channel angular pressing
2013
6 Citations (Scopus)

Angle-resolved energy distribution of re-emitted positrons from a W(100) single crystal

Sudarshan, K., Samarin, S., Guagliardo, P., Petrov, V., Weiss, A. H. & Williams, J., 2013, In : Physical Review B. 87, 8, p. 6pp

Research output: Contribution to journalArticle

Positrons
positrons
energy distribution
Single crystals
single crystals
1 Citation (Scopus)

Electron screening and electron-electron scattering mechanisms

Artamonov, O. M., Samarin, S. & Williams, J., 2013, In : Journal of Electron Spectroscopy and Related Phenomena. 191, p. 79-85

Research output: Contribution to journalArticle

Electron scattering
Screening
electron scattering
screening
Electrons
11 Citations (Scopus)

Influence of polar groups in binary polymer blends on positronium formation

Ramya, P., Guagliardo, P., Pasang, T., Ranganathaiah, C., Samarin, S. & Williams, J., 2013, In : Physical Review E. 87, p. 8pp

Research output: Contribution to journalArticle

Polymer Blends
polymer blends
positronium
extravehicular activity
Binary
2 Citations (Scopus)

Influence of surface conditions on thermal positron reemission spectra from W(100)

Sudarshan, S., Wilkie, P. J., Samarin, S., Guagliardo, P., Petrov, V., Weiss, A. H. & Williams, J., 2013, In : Applied Physics A: materials science and processing. 113, 3, p. 633-639

Research output: Contribution to journalArticle

cleaning
positrons
oxygen
cleanliness
moderators
3 Citations (Scopus)

Intensity asymmetry of the (00) diffracted spin-polarized electron beam scattered from W(110): Azimuthal dependence

Samarin, S., Williams, J., Artamonov, O., Praviça, L., Sudarshan, K., Guagliardo, P., Giebels, F., Gollisch, H. & Feder, R., 2013, In : Applied Physics Letters. 102, p. 4pp

Research output: Contribution to journalArticle

asymmetry
electron beams
electron spectroscopy
incidence
formalism
25 Citations (Scopus)

Plasmon-assisted high reflectivity and strong magneto-optical Kerr effect in permalloy gratings

Kostylev, N., Maksymov, I., Adeyeye, A. O., Samarin, S., Kostylev, M. & Williams, J., 2013, In : Applied Physics Letters. 102, 12, p. 5pp

Research output: Contribution to journalArticle

Permalloys (trademark)
Kerr effects
gratings
reflectance
augmentation
1 Citation (Scopus)

Positron annihilation and optical studies of natural brown type i diamonds

Guagliardo, P., Byrne, K., Chapman, J., Sudarshan, K., Samarin, S. & Williams, J., 2013, In : Diamond and Related Materials. 37, p. 37-40

Research output: Contribution to journalArticle

Diamond
Positron annihilation
positron annihilation
Vacancies
Diamonds
2 Citations (Scopus)

Positron annihilation in off-stoichiometric and Ta-doped Zn2TiO4

Guagliardo, P., Vance, E. R., Lumpkin, G. R., Blackford, M. G., Sudarshan, S., Davis, J., Samarin, S. & Williams, J., 2013, In : Journal of the American Ceramic Society. 96, 10, p. 3286-3289

Research output: Contribution to journalArticle

Positron annihilation
Vacancies
Cations
Positive ions
Doping (additives)
2 Citations (Scopus)

Probing surface magnetism by spin-polarized electron spectroscopy: Fe film on W(110)

Samarin, S., Artamonov, O. M., Guagliardo, P., Sudarshan, S., Kostylev, M., Praviça, L., Baraban, A. & Williams, J., 2013, In : Surface Science. 617, p. 22-28

Research output: Contribution to journalArticle

Electron spectroscopy
Magnetism
electron spectroscopy
asymmetry
Electrons
2012
15 Citations (Scopus)

Experimental determination of interface widths in binary polymer blends from free volume measurements

Ramya, P., Ranganathaiah, C. & Williams, J., 2012, In : Polymer (United Kingdom). 53, p. 4539-4546

Research output: Contribution to journalArticle

15 Citations (Scopus)

Positron annihilation lifetime studies of Nb-doped TiO 2, SnO 2, and Zr O 2

Guagliardo, P., Vance, E. R., Zhang, Z., Davis, J., Williams, J. & Samarin, S., 2012, In : Journal of the American Ceramic Society. 95, p. 1727-1731

Research output: Contribution to journalArticle

49 Citations (Scopus)

Study of vacancy-type defects by positron annihilation in ultrafine-grained aluminum severely deformed at room and cryogenic temperatures

Su, L. H., Lu, C., He, L. Z., Zhang, L., Guagliardo, P., Tieu, A. K., Samarin, S., Williams, J. & Li, H. J., 2012, In : Acta Materialia. 60, p. 4218-4228

Research output: Contribution to journalArticle

16 Citations (Scopus)

Unexpected effects in spin-polarized electron-impact excitation of the (3d104s5s)3S 1 state in zinc

Pravica, L., Williams, J., Cvejanovic, D., Samarin, S., Bartschat, K., Zatsarinny, O., Stauffer, A. D. & Srivastava, R., 2011, In : Physical Review A - Atomic, Molecular, and Optical Physics. 83, p. 4pp

Research output: Contribution to journalArticle

2010
31 Citations (Scopus)

Auger-Mediated Sticking of Positrons to Surfaces: Evidence for a Single-Step Transition from a Scattering State to a Surface Image Potential Bound State

Mukherjee, S., Nadesalingam, M. P., Guagliardo, P., Sergeant, A., Barbiellini, B., Williams, J., Fazleev, N. G. & Weiss, A. H., 2010, In : Physical Review Letters. 104, p. Article number 247403, 4pp

Research output: Contribution to journalArticle

4 Citations (Scopus)

Investigation of the behaviour of the Sherman function for elastic electron scattering from Kr and Xe

Mceachran, R. P., Stauffer, A. D., Piwinski, M., Pravica, L., Williams, J., Cvejanovic, D. & Samarin, S., 2010, In : Journal of Physics B: Atomic Molecular and Optical Physics. 43, p. Article number 215208, 8pp

Research output: Contribution to journalArticle

2 Citations (Scopus)

Negative-ion resonances and cusps in 41, 3P electron excitation functions of the zinc atom

Napier, S., Cvejanovic, D., Williams, J. & Pravica, L., 2010, In : Physical Review A. 81, 3, p. Article number 032701, 9pp

Research output: Contribution to journalArticle

4 Citations (Scopus)

Spin-asymmetry in elastic scattering of low-energy electrons from ultrathin Au films on W(110)

Samarin, S., Williams, J., Artamonov, O. M., Henk, J. & Feder, R., 2010, In : Surface Science. 604, p. 1833-1839

Research output: Contribution to journalArticle

2009
3 Citations (Scopus)

Binary and Multiparticle Electron-Electron Interaction on the Surface

Artamonov, O. M., Samarin, S. & Williams, J., 2009, In : Technical Physics. 54, 7, p. 1034-1040

Research output: Contribution to journalArticle

Electron-electron interactions
electron
Electrons
scattering
metal
14 Citations (Scopus)

Emission cross sections for electron-impact excitation of zinc atoms

Napier, S., Cvejanovic, D., Williams, J., Pravica, L., Fursa, D., Bray, I., Zatsarinny, O. & Bartschat, K., 2009, In : Physical Review A. 79, 4, p. Article number 042702, 11pp

Research output: Contribution to journalArticle

electron impact
zinc
cross sections
splines
matrix methods
6 Citations (Scopus)

Negative-ion resonances in zinc: A study in elastic electron scattering and electron transmission

Napier, S., Cvejanovic, D., Burrow, P. D., Williams, J., Michejda, J. A. & Pravica, L., 2009, In : Physical Review A. 80, 4, p. Article number 042710, 13pp

Research output: Contribution to journalArticle

negative ions
elastic scattering
electron scattering
zinc
electrons
1 Citation (Scopus)

On the mechanism of spin-dependent (e,2e) scattering from a ferromagnetic surface.

Samarin, S., Artamonov, O. M., Sergeant, A., Pravica, L., Cvejanovic, D., Wilkie, P., Guagliardo, P., Suvorova, A. & Williams, J., 2009, In : Journal of Physics: Conference Series (Print). 185, p. 1-4

Research output: Contribution to journalArticle

scattering
projection
electrons
qualitative analysis
energy distribution
11 Citations (Scopus)

Spatially resolved scanning probe electron energy spectroscopy for Ag islands on a graphite surface

Xu, C. K., Chen, X. J., Zhou, X., Wei, Z., Liu, W. J., Li, J. W., Williams, J. & Xu, K. Z., 2009, In : Review of Scientific Instruments. 80, 10, p. Article number 103705, 5pp

Research output: Contribution to journalArticle

Graphite
graphite
Spectroscopy
electron energy
Scanning
2008
11 Citations (Scopus)

Angle and energy dispersive multichannel electron energy spectrometer for surface analysis

Zhou, X., Xu, C. K., Wei, Z., Liu, W. J., Li, J. W., Chen, X., Williams, J. & Xu, K. Z., 2008, In : Journal of Electron Spectroscopy and Related Phenomena. 165, 1-3, p. 15-19

Research output: Contribution to journalArticle

Surface analysis
solid surfaces
Spectrometers
spectrometers
electron energy
14 Citations (Scopus)

Effect of electron correlations on the excitation of neutral states of zinc in the autoionizing region: A photon emission study

Napier, S., Cvejanovic, D., Williams, J. & Pravica, L., 2008, In : Physical Review A. 78, 3, p. online - approx 5-20pp

Research output: Contribution to journalArticle

zinc
photons
excitation
electrons
decay