Hebatalla Elnaggar

PhD Candidate
Employed since: November 2014
Email: H.M.E.A.Elnaggar@uu.nl
Room: 5th floor study area



The determination of the local orientation and magnitude of the magnetization in films and single crystals plays a pivotal role in understanding and harnessing magnetic properties for technological applications. My work focuses on employing the polarization dependence of resonant inelastic X-ray scattering (RIXS) to directly probe the spin ordering with chemical and site selectivity. Applied on the prototypical transition metal oxides, such as magnetite ([Fe3+ ]A [Fe3+ , Fe2+ ]B O4 ), I study how to quantify structural and magnetic parameters from detailed angular dependence measurements and theoretical simulations.



2014 – present
Ph.D., Debye institute for nanomaterials science, University of Utrecht,

  • Thesis Topic: X-ray RIXS dichroism of transition metal oxides.
  • Advisor: F. de Groot, Prof. Dr.


M.Sc., Materials science exploiting large scale facilities, Joint degree between University of Rennes 1, TU Munich and LMU Munich,

  • Thesis Topic: Magnetite thin films and colloidal nanoparticles: An x-ray absorption spectroscopic study
  • Advisors: W. Schmahl, Prof. Dr. and P. Glatzel, Ph.D
  • Accumilative Grade: A


B.Sc., Materials science and engineering,  Double degree between TU Clausthal and Ain Shams University,

  • Thesis Topic: Study of the formability of steel/polymer/steel composites
  • Advisor: H. Palkowski, Prof. Dr.-Ing.
  • Accumulative Grade: A, distinguished with honours


Born in Cairo, Egypt


Elnaggar, H; Wang, R; Lafuerza, S; Paris, E; Komarek, A C; Guo, H; Tseng, Y; McNally, D; Frati, F; Haverkort, M W; Sikora, M; Schmitt, T; Groot, De F M F

Possible absence of trimeron correlations above the Verwey temperature in Fe3 O4 Journal Article

Physical Review B, 101 (8), 2020, (cited By 0).

Links | BibTeX

Nag, A; Robarts, H C; Wenzel, F; Li, J; Elnaggar, H; Wang, R -P; Walters, A C; García-Fernández, M; Groot, De F M F; Haverkort, M W; Zhou, K -J

Many-Body Physics of Single and Double Spin-Flip Excitations in NiO Journal Article

Physical Review Letters, 124 (6), 2020, (cited By 0).

Links | BibTeX

Ismail, A S M; Uemura, Y; Park, S H; Kwon, S; Kim, M; Elnaggar, H; Frati, F; Niwa, Y; Wadati, H; Hirata, Y; Zhang, Y; Yamagami, K; Yamamoto, S; Matsuda, I; Halisdemir, U; Koster, G; Weckhuysen, B M; Groot, De F M F

Direct observation of the electronic states of photoexcited hematite with ultrafast 2p3d X-ray absorption spectroscopy and resonant inelastic X-ray scattering Journal Article

Physical Chemistry Chemical Physics, 22 (5), pp. 2685-2692, 2020, (cited By 0).

Links | BibTeX

Elnaggar, H; Sainctavit, P; Juhin, A; Lafuerza, S; Wilhelm, F; Rogalev, A; Arrio, M -A; Brouder, C; Linden, Van Der M; Kakol, Z; Sikora, M; Haverkort, M W; Glatzel, P; Groot, De F M F

Noncollinear Ordering of the Orbital Magnetic Moments in Magnetite Journal Article

Physical Review Letters, 123 (20), 2019, (cited By 0).

Links | BibTeX

Wang, R -P; Geessinck, J; Elnaggar, H; Birkhölzer, Y A; Tomiyasu, K; Okamoto, J; Liu, B; Du, C -H; Huang, D -J; Koster, G; Groot, De F M F

Low-energy orbital excitations in strained LaCoO3 films Journal Article

Physical Review B, 100 (16), 2019, (cited By 0).

Links | BibTeX

Elnaggar, H; Wang, R -P; Lafuerza, S; Paris, E; Tseng, Y; McNally, D; Komarek, A; Haverkort, M; Sikora, M; Schmitt, T; Groot, De F M F

Magnetic Contrast at Spin-Flip Excitations: An Advanced X-Ray Spectroscopy Tool to Study Magnetic-Ordering Journal Article

ACS Applied Materials and Interfaces, 11 (39), pp. 36213-36220, 2019, (cited By 0).

Links | BibTeX

Linden, Van Der M; Bunningen, Van A J; Amidani, L; Bransen, M; Elnaggar, H; Glatzel, P; Meijerink, A; Groot, De F M F

Single Au Atom Doping of Silver Nanoclusters Journal Article

ACS Nano, 12 (12), pp. 12751-12760, 2018, (cited By 0).

Links | BibTeX

Other publications

See earlier publications on Scopus.