Faculty

College / Department

Teaching areas

All courses offered by Physics Department

Research areas

My research interests have evolved from f-electron systems to complex magnetic oxides, the recurring themes being the study of correlated electron materials and the use of neutron scattering methods. I have been investigating a wide range of perovskite systems, mainly cobaltites and manganites. These transition metals oxides have a very diverse range of physical properties from a wide variety of magnetic orderings to metal-insulator transitions, spin-state transitions.

Education

BsC, Yarmouk University, Jordan, 1994

MsC, New Mexico State University, USA, 2004

PhD, New Mexico State University, USA, 2007

Professional experience

Sample synthesis and structural characterization using x-ray diffraction.

High magnetic fields and helium cryogenics expertise

Physical property characterization techniques

Multiple neutron scattering techniques

Memberships

American Physical Society (APS), neutron scattering society of america (NSSA)

Contact

[email protected]

+971 6 515 2489

Dr. Sami El-Khatib

Associate Professor

PhD in Physics, New Mexico State University, USA

Sami El-Khatib's research activities as a postdoctoral research associate started at the Department of Chemical Engineering and Materials Science at the University of Minnesota, followed by working as a research fellow at the National Institute of Standards and Technology (NIST) affiliated with University of Maryland. The bulk of his research is currently proceeding in collaboration with Los Alamos National Laboratory and NIST Center for Neutron Research on studying magnetism of strongly correlated electron systems and transition metal perovskites. He has published more than 20 referred articles during the course of his career.

Publications

S. El-Khatib, D. Phelan, J.G. Barker, J.A. Borchers, H. Zheng, J.F. Mitchell and C. Leighton. “Neutron-scattering-based evidence for interacting magnetic excitons in LaCoO3.” Phys. Rev. B 92, 060404(R) (2015) (Editors’ Suggestion)

S.Yuan, P.L. Kuhns, A.P. Reyes, J.S. Brooks, M.J.R. Hoch, D. Phelan, V. Srivistava, S. El-Khatib, R.D. James and C. Leighton. “Magnetically nanostructured state in a Ni-Mn-Sn shape memory alloy.” Phys. Rev. B 91, 214421 (2015)

Kanwal Preet Bhatti, Vijay Srivastava, D.P. Phelan, S. El-Khatib, R.D. James and C. Leighton. “Magnetic Phase Competition in Off-Stoichiometric Martensitic Heusler Alloys: The Ni50-xCoxMn25+ySn25-y System.” Published on Heusler Alloys" published by Springer 2015

K.P. Bhatti, S. El-Khatib, V. Srivastava, R.D. James and C. Leighton, “Small-angle neutron scattering study of magnetic ordering and inhomogeneity across the martensitic phase transformation in Ni50-xCoxMn40Sn10 alloys,” Phys. Rev. B 85, 134450 (2012). (Editors' Suggestion)

Torija, M. A., Sharma, M., Gazquez, J., Varela, M., He, C., Schmitt, J., Borchers, J. A., Laver, M., El-Khatib, S. and Leighton, C, “Chemically Driven Nanoscopic Magnetic Phase Separation at the SrTiO3(001)/La1-xSrxCoO3 Interface.” Adv. Mater., 201100417 (2011) 1-5.

S. El-Khatib, S. Bose, C. He, J. Kuplic, M. Laver, J.A. Borchers, Q. Huang, J.W. Lynn, J.F. Mitchell and C. Leighton. “Spontaneous formation of an exchange-spring composite via magnetic phase separation in Pr1-xCaxCoO3,” Phys. Rev. B 82, 100411(R) (2010). (Editors' Suggestion)

C. He, S. El-Khatib, S. Eisenberg, M. Manno, J.W. Lynn, H. Zheng, J.F. Mitchell, and C. Leighton. “Transport signatures of percolation and electronic phase homogeneity in La1-xSrxCoO3 single crystals”, APPLIED PHYSICS LETTERS, Vol. 95 (2009) 222511

C. He, S. El-Khatib, J. Wu, J.W. Lynn, H. Zheng, J.F. Mitchell, and C. Leighton. “Doping fluctuation-driven magneto-electronic phase separation in La1-xSrxCoO3 single crystals”, Europhysics Letters, 87 (2009) 27006.

C. Leighton, D.D. Stauffer, Q. Huang, Y. Ren, B. Toby, S. El-Khatib, M.A. Torija, J. Wu, J.W. Lynn, L. Wang, N.A. Frey, H. Srikanth, J.E. Davies, K. Liu and J.F. Mitchell, “Coupled structural / magnetocrystalline anisotropy transitions in the doped perovskite cobaltite Pr1-xSrxCoO3,” Phys. Rev. B Vol. 79, (2009) 214420.

Conference Presentations

Sami El-Khatib (Co-Author): “Cross from Polaronic to Magnetically-Separated Behavior in La1-xSrxCoO3.”MAR-2013 Meeting of The American Physical Society, Maryland-USA

Sami El-Khatib (Talk): “Small-Angle Neutron Scattering Study of Magnetic Ordering and Inhomogeneity Across the Martensitic Phase Transformation in Ni50-xCoxMn40Sn10 Alloy.”12th Joint MMM – INTERMAG CONFERENCE Jan 14 – 18, 2013. Chicago-USA

Sami El-Khatib (Talk): “Controlling Interface Magnetism and Transport via Oxygen Vacancy Ordering in Perovskite Cobaltite” The 58th Annual conference of Magnetism and Magnetic Materials, Denver, Colorado, USA. Nov. 4th – Nov. 8th 2013.

Sami El-Khatib (Talk): “investigating the Magnetic Origin of Bragg Peak on Co1-xFexS2 Single Crystal.” NIST Seminar Scholar Visit. June 10 –15, 2015. Maryland - USA

Awards and Honors

Graduate Assistantship Award, NMSU 2005,

Seaborg Fellowship, Materials Science and Technology (MST)-NHMFL, 2005, Los Alamos National Laboratory.