Publication

Journal papers, review articles, book chapters

  1. S. Sapkota, P. Adhikari, S. Sah, S. Bhattarai, S. P. Shrestha, S. Poudel, H. R. Sharma, K. Maleku, P. Simkhada; Use of telehealth services among Nepali living overseas during Covid-19 pandemic: The opportunities, limitations, lessons learned and recommendations, Journal of Oral Biology and Craniofacial Research  12, 299 (2022)
  2. H. R. Sharma, S. Coates, A. Alofi, and R. McGrath, Growth of Pentacene Molecules on Tsai-type Quasicrystals and Related Crystal Surfaces, Journal of Vacuum Science and Technology A 40, 013211 (2022).
  3. S. Coates, R. McGrath, H. R. Sharma, and R. Tamura, Pentacene growth on the (111) surface of the 1/1 Au-Al-Tb approximant: Influence of surface geometry on adsorption, Physical Review Materials 5, 076002 (2021).
  4. A. Alofi, D. Burnie, S. Coates, R. McGrath, and H. R. Sharma, Adsorption of Pentacene on the 2-Fold Surface of the Icosahedral AgInYb  Quasicrystal, Materials Transactions 62, 312 (2021)
  5. S. Coates, K. Nozawa, M. Fukami, K. Inagaki, M. Shimoda, R. McGrath, H. R. Sharma, and R. Tamura, The atomic structure of the (111) surface of the antiferromagnetic 1/1 Au-Al-Tb, Phys. Rev. B 102, 235419 (2020)
  6. V. Fournée, J. Ledieu, E. Gaudry, H. R. Sharma, R. McGrath, Ultra-Thin Films on Complex Metallic Alloy Surfaces: A Perspective,‘Materials Horizons: From Nature to Nanomaterials, Recent Advances in Thin Films‘ Springer Nature Singapore Pte Ltd 2020 (Invited book chapter).
  7. S. Coates, R. McGrath and H. R. Sharma, Influence of differences in orientational planar density on the growth of Pb on the i-Ag-In-Yb quasicrystal, Journal of Physics: Condensed Matter 32, 425006 (2020)
  8. S. Coates, Stuart Thorn, R. McGrath, H. R. Sharma, and A. P. Tsai, Unique growth mode observed in a Pb thin film on the threefold surface of an i-Ag-In-Yb quasicrystal,  Physical Review Materials 4, 026003 (2020).
  9. S. Coates, H. R. Sharma, and R. McGrath, C60 on impurity phases of the 2–fold surface of the Al–Pd–Mn quasicrystal, Journal of Physics: Conference Series, 1458 (2020) 012015
  10. D. Burnie, S. Coates, R. McGrath, and H. R. Sharma, Bias-voltage dependent STM images from the 2–fold surface of the icosahedral Ag-In-Yb quasicrystal, Journal of Physics: Conference Series, 1458 (2020) 012017
  11. S. Coates, J. A. Smerdon, R. McGrath and H. R. Sharma, A molecular overlayer with the Fibonacci square grid structure, Nature Communications 9, 3435 (2018)  https://doi.org/10.1038/s41467-018-05950-7
  12. S. S. Hars, H. R. Sharma, J. A. Smerdon, S. Coates, K. Nozawa, A. P. Tsai, and R. McGrath, Growth of a Bismuth Thin Film on the Five-fold Surface of the Icosahedral Ag-In-Yb Quasicrystal, Surface Science 678, 222 (2018)
  13. H. R. Sharma, P. J. Nugent, T. C. Q. Noakes, J. Smerdon, J. Parle, A. P. Tsai, and R. McGrath, Medium energy ion scattering (MEIS) study from the five-fold surface of icosahedral Ag-In-Yb quasicrystal, Journal of Physics: Conference Series 809 , 012017 (2017)
  14. S .Coates, A. Al-Mahboob, R. McGrath and H. R. Sharma, Preparation dependent surface structure of NiAl(100) Journal of Physics: Conference Series 809,  012016 (2017) 
  15.  M. Lahti and K. Pussi, J. A. Smerdon, K. M. Young, H.R. Sharma and R. McGrath, Coverage-dependent structural phase transformations in the adsorption of pentacene on an aperiodically modulated Cu film, The Journal of Chemical Physics 145, 154707 (2016)
  16. S. S. Hars, H. R. Sharma, J. A. Smerdon, T. P. Yadav, A. Al-Mahboob, J. Ledieu, V. Fournee, R. Tamura, and R. McGrath, Surface Structure of the Ag-In-(Rare Earth) Complex Intermetallics, Physical Review B 93, 205428 (2016)
  17. M. Lowe, T. P Yadav, V. Fourn´ee, J. Ledieu, R. McGrath, and H. R. Sharma, Influence of leaching on surface composition, microstructure, and valence band of single grain icosahedral Al-Cu-Fe quasicrystal, Journal of Chemical Physics 142, 094703 (2015)
  18. S. S. Hars, H. R. Sharma, J. A. Smerdon, T. P. Yadav, R. Tamura, M. Shimoda and R. McGrath, The Structure of the (100) Surface of Ag-In-Gd 1/1 Approximant, Acta Physica Polonica A 126, 479 (2014)
  19. T. P. Yadav, S. S. Mishra, M. Lowe, R. Tamura, N. K. Mukhopadhyay, O. N. Srivastava, R. McGrath, and H. R. Sharma , Leaching of Al-based polygrain quasicrystalline and related crystalline surfaces, Acta Physica Polonica A 126, 629 (2014)
  20. M. Lowe, P. Gille, R. McGrath, and H. R. Sharma, Leaching effect on multiple surfaces of a single grain decagonal-Al-Ni-Co quasicrystal, Acta Physica Polonica A 126, 520 (2014)
  21. C. Cui, H. R. Sharma, P. J. Nugent, M. Shimoda, and A. P. Tsai, STM study on the (100) surface of the Ag-In-Yb 1/1 cubic approximant, Acta Physica Polonica A 126, 577 (2014)
  22. H. R. Sharma, J. A. Smerdon, P. J. Nugent, A. Ribeiro, I. McLeod, V. R. Dhanak, M. Shimoda, A. P. Tsai, and R. McGrath, Crystalline and quasicrystalline allotropes of Pb formed on the fivefold surface of icosahedral Ag-In-Yb, The Journal of Chemical Physics 140, 174710 (2014)
  23. J. A. Smerdon, K. M. Young, M. Lowe, S. S. Hars, T. P. Yadav, D. Hesp, V. R. Dhanak, A. P. Tsai, H. R. Sharma and R. McGrath, Templated quasicrystalline molecular ordering, Nano Letters 14, 1184 (2014)
  24. C. Cui, P. J. Nugent, M. Shimoda, J. Ledieu, V. Fourn´ee, A. P. Tsai, R. McGrath, and H. R. Sharma, Structure of the twofold surface of the icosahedral AgInYb quasicrystal, J. Phys.: Condens. Matter 26 015001 (2014)
  25. T. C. Q. Noakes, J. Parle, P. Nugent, H. R. Sharma, J. A. Smerdon, P. Bailey, and R. McGrath, Depth dependent order/disorder transitions in iron-rich thin films grown on i-Al-Pd-Mn studied by medium energy ion scattering, Surface Science 620, 59 (2014)
  26. H. R. Sharma, K. Nozawa, J. A. Smerdon, P. J. Nugent, I. McLeod, V. R. Dhanak, M. Shimoda, Y. Ishii, A. P. Tsai, and R. McGrath, Templated three-dimensional growth of quasicrystalline lead, Nature Communications 4, 2715 (2013), doi: 10.1038/ncomms3715
  27. J. K. Parle, A. Beni, V. R. Dhanak, J. A. Smerdon, P. Schmutz, M. Warde, M.-G. Barthes-Labrousse, B. Bauer, P. Gille, H. R. Sharma, and R. McGrath, STM and XPS investigation of the oxidation of the Al4(Cr, Fe) quasicrystal approximant, Applied Surface Science 283, 276 (2013)
  28. R. Tamura, T. P. Yadav, I. M. McLeod, D. Hesp, K. M. Young, T. Nakamura, K. Nishio, V R Dhanak, R. McGrath, H. R. Sharma,  Scanning tunneling microscopy of a polygrain AlPdRe quasicrystal: study of the relative surface stability, J. Phys.: Condens. Matter 25, 395007 (2013)
  29. M. Armbruester, M. Behrens, K. Foettinger, M. Friedrich, E. Gaudry, S. K. Matam, H. R. Sharma, The Intermetallic Compound ZnPd and Its Role in Methanol Steam Reforming, Catalysis Reviews 55, 289 (2013)
  30. K. M. Young, J. A. Smerdon, H. R. Sharma, M. Lahti, K. Pussi and R. McGrath, Acene adsorption on a Fibonacci-modulated Cu film, Physical Review B 87, 085407 (2013)
  31. T. P. Yadav, M. Lowe, R. Tamura, R. McGrath and H. R. Sharma, Effect of leaching on surface microstructure and chemical composition of Al-based quasicrystals, Aperiodic Crystals, Springer, edited by Siegbert Schmid, Ray L. Withers and Ron Lifshitz, chapter 37, page 275 (2013)
  32. C. Cui, P. J. Nugent, M. Shimoda, J. Ledieu, V. Fourn´ee, A. P. Tsai, R McGrath and H. R. Sharma, The atomic structure of the threefold surface of the icosahedral Ag-In-Yb quasicrystals, J. Phys.: Condens. Matter 24, 445011 (2012)
  33. H. R. Sharma, J. A. Smerdon, K. M. Young and R. McGrath, Epitaxial Bi allotropes on quasicrystal surfaces as templates for adsorption of pentacene and fullerene, J. Phys.: Condens. Matter 24, 354012 (2012)
  34. R. McGrath, H. R. Sharma, J. A. Smerdon, J. Ledieu, The memory of surfaces: self­organisation in epitaxy on quasicrystals, Phil. Trans. R. Soc. A 370, 2930 (2012)
  35. V. Fourn´ee, J. Ledieu, M. Shimoda, M. Krajci, H. R. Sharma and R. McGrath, Thin Film Growth on Quasicrystalline Surfaces, Isr. J. Chem. 51, 1 (2011)
  36. P. J. Nugent, J. A. Smerdon, R. McGrath, M. Shimoda, C. Cui, A. P. Tsai and H. R. Sharma, Step-Terrace Morphology and Reactivity to C60 of the Fivefold i-Ag-In-Yb Surface, Philosophical Magazine 91, 2862 (2011)
  37. H. R. Sharma, J. Ledieu, V. Fourn´ee and P. Gille, Influence of the substrate temperature and deposition flux in the growth of a Bi thin film on the tenfold decagonal Al-Ni-Co surface, Philosophical Magazine 91, 2870 (2011)
  38. K. M. Young, N. Cross, J. A. Smerdon, V. R. Dhanak, H. R. Sharma, T. A. Lograsso, A. R. Ross and R. McGrath, XPS study of adsorption and desorption of a Bi thin film on the five-fold icosahedral Al-Pd-Mn surface, Philosophical Magazine 91, 2889 (2011)
  39. J. A. Smerdon, N. Cross, V. R. Dhanak, H. R. Sharma, K. M. Young,T. A. Lograsso, A. R. Ross and R. McGrath, Structure and reactivity of Bi allotropes on the fivefold icosahedral Al–Pd–Mn quasicrystal surface, Phys.: Condens. Matter 22, 345002 (2010)
  40. P. J. Nugent, G. Simutis, V. R. Dhanak, R. McGrath, M. Shimoda, C. Cui, A. P. Tsai and H. R. Sharma, Surface oxidation of the icosahedral Ag-In-Yb quasicrystal, Physical Review B, 82, 014201 (2010)
  41. H. R. Sharma, P. J. Nugent, J. A. Smerdon, M. Shimoda, S. Ohhashi, C. Cui, V. Fournée, J. Ledieu and A. P. Tsai, Impurity phases in icosahedral Ag-In-Yb quasicrystal: influence in surface studies, Journal of Physics, Conference Series 226, 012004 (2010)
  42. H. R. Sharma, G. Simutis, V. R. Dhanak, P. J. Nugent, C. Cui, M. Shimoda, R. McGrath, A. P. Tsai, and Y. Ishii, Valence band structure of the icosahedral Ag-In-Yb quasicrystal, Physical Review B, 81, 104205 (2010)
  43. R McGrath, J A Smerdon, H. R. Sharma, W Theis and J Ledieu, The surface science of quasicrystals, Phys.: Condens. Matter 22, 84022 (2010) Invited Review Article
  44. H. R. Sharma, M. Shimoda, K. Sagisaka, H. Takakura, J. A. Smerdon, P. J. Nugent, R. McGrath, D. Fujita, S. Ohhashi and A. P. Tsai, Structure of the fivefold surface of the Ag-In-Yb icosahedral quasicrystal, Physical Review B 80, 121401 (R) (2009)
  45. J.A. Smerdon, L.H. Wearing, J. Parle, L. Leung, H. R. Sharma, J. Ledieu, R. McGrath, Ordering of adsorbed species on quasicrystal surfaces,  Philosophical Magazine 88, 2073 (2008)
  46. H. R. Sharma, V. Fournée,  M. Shimoda, A. R. Ross, T. A. Lograsso, P. Gille, A. P. Tsai, Growth of Bi thin films on quasicrystal surface,  Physical Review B 78, 155416 (2008)
  47. M. Shimoda and H. R. Sharma, Sputter-induced crystalline layers and epitaxial overlayers on quasicrystal surfaces,  J. Phys.: Condens. Matter 20, 314008 (2008)  Invited Review Article 
  48. J. A. Smerdon, H. R. Sharma, J. Ledieu and R. McGrath, Nucleation and growth of pseudomorphic monolayers on quasicrystal surfaces, J. Phys.: Condens. Matter 20, 314005 (2008)
  49. H. R. Sharma, M. Shimoda, S. Ohhashi, and A. P. Tsai, First UHV surface studies of single grain icosahedral Ag-In-Yb quasicrystal, Philosophical Magazine 87, 2989 (2007)
  50. H. R. Sharma, M. Shimoda, and A. P. Tsai Quasicrystal surfaces: structure and growth of atomic overlayers, Advances in Physics 56, 403 (2007) Invited Comprehensive Review Article
  51. M. Shimoda and H. R. Sharma, Surface studies of quasicrystals, J. Cryst. Soc. Jpn, 49, 80 (2007)
  52. H. R. Sharma, M. Shimoda, and A. P. Tsai, Comparison of surface structure of icosahedral Al-Pd-Mn family quasicrystals, Japanese Journal of Applied Physics 45, 2208 (2006) 
  53. H. R. Sharma, M. Shimoda, A. R. Ross, T. A. Lograsso, and A. P. Tsai, Terrace dependent morphology of thin Sn film deposited on the fivefold surface of the i icosahedral Al-Cu-Fe quasicrystal, Philosophical Magazine 86, 807 (2006)
  54. M. Shimoda, H. R. Sharma, and A. P. Tsai, Scanning tunneling microscopy study of the fivefold surface of icosahedral Al-Cu-Ru quasicrystal, Surface Science 598, 88 (2005)
  55. V. Fournée, H. R. Sharma, M. Shimoda, A. P. Tsai, B. Unal, A. R. Ross, T. A. Lograsso, and P. A. Thiel, Quantum size effects in metal thin films grown on quasicrystalline substrates, Physical Review Letters 95, 155504 (2005) 
  56. T. Suzuki, H. R. Sharma, T. Nishimura, M. Shimoda, Y. Yamauchi and A. P. Tsai, Electronic structure of the topmost 10-fold surface of decagonal Al-Ni-Co quasicrystal, Physical Review B 72, 115427 (2005)
  57. H. R. Sharma, M. Shimoda, A. R. Ross, T. A. Lograsso, and A. P. Tsai, Real-space observation of quasicrystalline Sn monolayer formed on the fivefold surface of icosahedral Al-Cu-Fe quasicrystal, Physical Review B 72, 45428 (2005)
  58. H. R. Sharma, M. Shimoda, V. Fournée, A. R. Ross, T. A. Lograsso, and A. P. Tsai, RHEED and STM studies of the pseudo-tenfold surface of the x’-Al77.5Pd19Mn3.5 approximant crystal, Physical Review B 71, 224201 (2005)
  59. H. R. Sharma, M. Shimoda , V. Fournée, A. R. Ross, T. A. Lograsso, and A. P. Tsai, First steps in the growth of Cu thin films on the fivefold surface of the icosahedral Al-Cu-Fe quasicrystal, Applied Surface Science 241, 256 (2005)2004
  60. H. R. Sharma, M. Shimoda, J. Barrow, A.R. Ross, T. A. Lograsso, and A. P. Tsai, Morphology of Sn films grown on the fivefold surface of icosahedral Al63Cu24Fe13 investigated by scanning tunneling microscopy, Mat. Res. Soc. Symp. Proc. Vol 805 , LL7.11.1 (2004)
  61. H. R. Sharma, V. Fournée, M. Shimoda , A. R. Ross, T. A. Lograsso, A. P. Tsai, and A. Yamamoto, Structure of the fivefold surface of the icosahedral Al-Cu-Fe quasicrystal: experimental evidence of bulk truncations at larger inter-layer spacings, Physical Review Letters 93, 165502 (2004)
  62. H. R. Sharma, K. J. Franke, W. Theis, A. Riemann, S. Fölsch, P. Gille, and K. H. Rieder, Structure and morphology of the tenfold surface of Al71.8Ni14.8Co13.4 in its low temperature random tiling type I modification, Physical Review B 70, 235409 (2004)
  63. H. R. Sharma, K. J. Franke, W. Theis, A. Riemann, S. Fölsch, P. Gille, and K. H. Rieder, Investigation of the 2-fold decagonal Al71.8Ni14.8Co13.4(10000) surface by SPA- LEED and He-diffraction, Surface Science 561, 121 (2004)
  64. W. Theis, H. R. Sharma, K. J. Franke, and K. H. Rieder, Surface phonons in quasicrystals, Progress in Surface Science 75, 227 (2004) Invited Review Article
  65. W. Theis, H. R. Sharma, K. J. Franke, and K. H. Rieder, Surface phonons and quasicrystalline monolayers inua Quasi Crystals- Structure and physical properties, Trebin (Ed.), WILEY-VCH GmbH, Germany, 2003  Invited Book Chapter 
  66. H. R. Sharma, K. J. Franke, W. Theis, P. Gille, and K. H. Rieder, Low-energy surface phonons of decagonal and icosahedral quasicrystals by inelastic He-atom scattering, Physical Review B 68, 054205 (2003) 
  67. K. J. Franke, H. R. Sharma, W. Theis, P. Gille, Ph. Ebert, and K. H. Rieder, Quasicrystalline epitaxial monolayers grown on icosahedral Al-Pd-Mn and decagonal Al-Ni-Co quasicrystal surfaces, Physical Review Letters 89, 156104 (2002)
  68. H. R. Sharma, W. Theis, P. Gille, and K. H. Rieder, Faceting of the 2-fold decagonal Al71.8Ni14.8Co13.4(001-10) surface studied by He-diffraction, Surface Science 511, 387 (2002)

Thesis

  1. Hem Raj Sharma, Structure, Morphology, and Dynamics of Quasicrystal Surfaces, PhD Thesis, Free University Berlin, Germany, 2002 (web link to the thesis). 
  2. Hem Raj Sharma, Angle-resolved Photoemssion og the clean InSc(100) Surface, Postgraduate Diploma Thesis,  International Centre for Theoretical Physics (ICTP), Trieste, Italy, 1999. 

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