Prof. Hisham M. Widatallah

Department of Physics

College of Science Sultan Qaboos University, TheSultanateofOman

Email: hishammw@squ.edu.om, hisham@ictp.it

Qualifications

1996 Ph.D., Experimental Nuclear Solid State Physics, Nanjing University, China

1989 M.Sc., Physics/ Physics Education, Southampton University, UK

1982 B.Sc., with Distinction, Physics, Khartoum University, Sudan

Publications (Selected)

1. H. M. Widatallah, T. Al-Shahumi, Z. Klencsar, A. Gismelseed, A. Al- Rawas, A. Al- Omari, M. Pekala, S. Dreje. Structural, Magnetic and 151Eu/57Fe Mössbauer Studies of Mechano-synthesized Nanocrystalline EuCr1-xFexO3 Particles, Acta Materialia, 61 (2013) 4461.
2. H. M. Widatallah, N. Al-Saqri, F. Al-Mamari, A. M. Gismelseed, A. Faisal, I. A. Al-Omari, A. M. Abo El Ata, M. E. Elzain, Mössbauer and magnetic study of Sb5+- substituted spinel-related Mg1+2xSbxFe2-xO4, Mater. Chem. Phys, 140 (2013) 97.
3. A. I. Arbab, H. M. Widatallah, M. E. H. Khalafalla, Toward a complete wave-particle duality: Do matter waves have inertia?, Adv. Nat. Sci. 5 (2013) 32.
4. H.M. Widatallah, E. A. Moore, A. E. Babo, M. S. Al-Barwani, M. E. Elzain, Atomistic simulation and ab initio study of the defect structure of Mg-substituted spinel-related lithium ferrite of the composition Li0.5-0.5xMgxFe2.5-0.5x04 . Mater. Res. Bull., 47 (2012) 3995.
5. H. M. Widatallah, T. Al-Shahumi, A. Gismelseed, A. Al-Rawas, A. Al- Omari, M. Elzain, A. Yousif, M. Pekala, Structural, and Mössbauer studies of EuCr1-xFexO3 nanocrystalline particles, HyperfineInteract., 205 (2012) 101.
6. H. M. Widatallah, S. H. Al-Harthi, C. Johnson, Z. Klencsar, A. Gismelseed, E. A. Moore, A. Al-Rawas, C. Wynter, D. E. Brown, Formation, cationic site exchange and surface structure of mechano-synthesized EuCrO3 nanocrystall-ine particles. J. Phys. D: Appl. Phys., 44 (2011) 265403.
7. A. I. Arbab, H. M. Widatallah, The mass-extended ’t Hooft-Nobbenhuis complex transformations and their consequences. Euro. Phys. Lett. EPL 92 (2010) 23002.
8. A. I. Arbab, H. M. Widatallah, The generalized continuity equations, Chin. Phys. Lett. 27 (2010) 084703.
9. H. M. Widatallah, C. Johnson, A. Gismelseed, A. Al-Rawas, M. Elzain, A. Yousif, Structural and magnetic characterization of Ti-substituted Li0.5Fe2.5O4 prepared using hydrothermal and solid state routes, J. Phys.: Conf. Ser. 217 (2010) 012131.
10. H. M. Widatallah, A. Al-Rawas, C. Johnson, S. H. Al-Harthi, A. Gismelseed, E. A. Moore, S. J. Stewart, The formation of nanocrystalline SrFeO3-d using mechano-synthesis and subsequent sintering: Structural and Mössbauer studies, J. Nanosci. Nanotech. 9 (2009) 2510.
11. H. M. Widatallah, C. Johnson, A. Gismelseed, I. AL-Omari, S. J. Stewart, S. H. Al-Harthi, S. Thomas, H. Sitepu, Structural and magnetic studies of nanocrystalline Mg-doped Li0.5Fe2.5O4 particles prepared by mechanical milling, J. Phys. D: Applied Physics, 41 (2008) 165006.
12. A. Sellai, H. M. Widatallah, O.A. Yassin, M. Elzain, DC and AC Electrical Properties of the Sr2-xLixFeMnO6 compound, Key Eng. Mater.,368 (2008)150.
13. H. M. Widatallah, I. Al-Omari, F. Sives, M. B. Sturla, S. J. Stewart, Dynamic magnetic behaviour of cluster-glass ZnFe2O4 nanosystem, J. Mag. Mag. Mater. 320 (2008) 324.
14. E. A. Moore, H. M. Widatallah, Iron (III) as a defect in diantimony tetroxid, Mater. Res. Bull. 43 (2008) 2361.
15. I.A. Al-Omari, A. M. Gismelseed, H. M. Widatallah, M. Elzain, A. Yousif, Mössbauer Studies of GdFe2-xHfx Alloys, Hyperfine Interact., 187 ( 2008) 93.
16. A. M. Gismelseed, H. M. Widatallah, A. D. Al-Rawas, I.A. Al-Omari, M. Elzain, A. Yousif, Structural Characterization and Magnetic properties of NiMgxCr0.9Fe1.1-xO4, Hyperfine Interact 184 (2008) 105.
17. H. M. Widatallah, C. Johnson, S. H. Al-Harthi, A. M. Gismelseed, A. D. Al-Rawas, S. Stewart, M. Elzain, A. Yousif, A structural and Mössbauer study of Y3Fe5O12 nano-particles prepared with high energy ball milling and subsequent sintering, Hyperfine Interact, 183 (2008) 87.
18. H. M. Widatallah, C. Johnson, F. J. Berry, A. Gismelseed, E. Jartych, J. F. Marco, F. S. Gard, M. Pekala, Synthesis and cation distribution of copper-substituted spinel-related lithium ferrite, J. Phys. Chem. Solids., 67 (2006) 1817.
19. H. M. Widatallah, X-L Ren, I. Al-Omari, The influence of the TiO2 polymorph, mechanical milling and subsequent calcinations on the formation of Ti-substituted spinel-related Li0.5Fe2.5O4, J. Mater. Sci., 41 (2006) 6333.
20. H. M. Widatallah, I. Al-Omari, A. Gismelseed, O. A. Yassin, A. Al-Rawas, M. E. Elzain, A. Yousif, O. A. Osman, Mössbauer and magnetic study of Mn2+- and Cr3+- substituted spinel magnesioferrites of the composition Mg1-xMnxFe2-2xCr2xO4 Hyperfine Interact. 169 (2006) 1325.