Publications

2025

[31]. A. P. Nono Tchiomo, A. Sharma, S. Sajeev, A. Scheid, P. A. van Aken, T. Harada, P. Ngabonziza* 
      Magnetotransport Properties in Epitaxial Films of Metallic Delafossite PdCoO2: 
      Effects of Thickness and Width Variations in Hall Bar Devices
      arXiv:2503.03917 (2025).
[30]. A Scheid, T. Heil, Y. E. Suyolcu, Q. song, N. Enderlein, A. P.
      Nono Tchiomo, P. Ngabonziza, P. Hansmann, D. G. Schlom, and P. A. van Aken
      Unveiling the Interfacial Reconstruction Mechanism Enabling Stable Growth of the Delafossite PdCoO2 on Al2O3 and LaAlO3
      arXiv:2502.13727 (2025).
[29]. P. Ngabonziza*, J. D. Denlinger*, A. V. Fedorov, G. Cao, James W. Allen, G. Gebreyesus, and R. M. Martin
      Layer-dependent Spin-resolved Electronic Structure of Ferromagnetic Triple-layered Ruthenate Sr4Ru3O10
      Physical Review B 111,115146(2025). (Published as an Editor's Suggestion)

2024

[28]. P. Ngabonziza ; A. P. Nono Tchiomo;
      Epitaxial films and devices of transparent conducting oxides:La:BaSnO3
      APL Materials 12, 120601 (2024).
      [In the Special Collection on Emerging Leaders in Materials Science]
[27]. S. H. Connell, K. Dollman, G. Kamel, S. A. Khan, E. Mitchell, S. K. Mtingwa, M. C. Newton, P. Ngabonziza, E.
      Nji, L. Norris and M. Zema
      The African Light Source: history, context and future
      Journal of Synchrotron Radiation 31, 1-9 (2024).
[26]. P. Ngabonziza*, A. Sharma, A. Scheid, S. Sajeev, P. A. van Aken, and J. Mannhart
      Magnetotransport Properties of Epitaxial Films and Hall Bar Devices of the Correlated Layered Ruthenate Sr3Ru2O7
      Physical Review Materials 8, 044401 (2024).

2023

[25]. P. Ngabonziza*, J. Park, W. Sigle, P. A. van Aken, J. Mannhart, and D. G. Schlom;
      Employing High-temperature-grown SrZrO3 Buffer to Enhance the Electron Mobility in La:BaSnO3-based Heterostructures
      Applied Physics Letters 122, 241902 (2023). 
      [In the Special Collection on 2023 Rising Stars Collection]
[24]. M. C. Newton, S. H. Connell, E. P. Mitchell, S. K. Mtingwa , P. Ngabonziza, L. Norris , T. Ntsoane and D. A. K. Traore;
      Building a brighter future for Africa with the African Light Source
     Nature Reviews Physics 5, 74 (2023).
[23]. S. Connell, K. C. Cramer, Ed Mitchel, Sekazi K. Mtingwa, P. Ngabonziza*
      Recent Progress Towards an African Light Source
      Book Chapter in Springer Book Series on "Big Science in the 21st Century: Economic and Societal Impacts",
      IOP Publishing, 54-1 to 54-18, 2053 (2023).
[22]. A.-L. Rüland, N. Rüffin, K. Cramer, P. Ngabonziza, M. Saxena, S. Skupien
      Science Diplomacy from the Global South: The Case of Intergovernmental Science Organizations
      Science and Public Policy 00, 1-12 (2023). 

2022

[21].  A. P. Nono Tchiomo, E. Carleschi, Aletta R. E. Prinsloo, W. Sigle, P. A. van Aken, J. Mannhart, P. Ngabonziza*, and 
       B. P. Doyle*
       Combined Spectroscopy and Electrical Characterization of La:BaSnO3 Thin Films and Heterostructures;
       AIP Advances 12 (2022)
       [Editor's Pick in the Special Collection on: 2022 Materials Science]
[20].  P. Ngabonziza*
       Quantum transport and potential of topological states for thermoelectricity in Bi2Te3 thin films;
       Nanotechnology 33, 192001 (2022).
[19]. G. H. Gebreyesus*, P. Ngabonziza*, J. Nagura, S. Nicola, O. Akin-Ojo, and R. M. Martin* 
      Electronic structure and magnetism of the triple-layer ruthenate Sr4Ru3O10;
      Physical Review B 105, 165119 (2022).
[18]. K. Cramer, S. Connell, E. Mitchell, S. Mtingwa, and P. Ngabonziza 
      Science with Ubuntu - The African Light Source project offers a new perspective on research collaboration; 
      Comment in Research Europe, May 12, 2022
[17].  S.Connell, K. C. Cramer, Ed Mitchel, Sekazi K. Mtingwa, P. Ngabonziza* 
       Recent Progress Towards an African Light Source;
       Book Chapter in IOP Ebook Series on ” Big Science in the 21st Century: Economic and Societal Impacts'” 

2021

[16].   P. Ngabonziza, Y. Wang, P. van Aken, J. Maier, and J. Mannhart* 
        Inelastic electron tunneling spectroscopy at high-temperatures;
        Advanced Materials 33, 2007299 (2021)
[15].  P. Ngabonziza, R. Merkle, Y. Wang, P. van Aken J. Maier and J. Mannhart
       2D doping of proton conductors: BaZrO3-based heterostructures
       Advanced Energy Materials 11, 2003267 (2021)

2020

[14].  M. P. Stehno, P. Ngabonziza*, H. Myoren, and A. Brinkman,
       Josephson effect and charge distribution in thin Bi2Te3 topological insulators
       Advanced Materials 32, 1908351 (2020)
[13]. P. Ngabonziza*, E. Carleschi*, V. Zabolotnyy, A. Taleb-Ibrahimi, F. Bertran, R. Fittipaldi, V. Granata, M. Cuoco,
      A. Vecchione, and B. P. Doyle*
      Fermi surface and kink structures in Sr4Ru3O10 revealed by synchrotron-based ARPES
      Scientific Reports 10, 21062 (2020)
[12]. W. Braun, M. Jäger, G. Laskin, P. Ngabonziza, W. Voesch, P. Wittlich, and J. Mannhart
     In-situ thermal preparation of oxide surfaces
     APL Materials 8, 071112 (2020)

2019

[11].  Arnaud. P. Nono Tchiomo, Wolfgang Braun, Bryan P. Doyle, Wilfried Sigle, Peter van Aken, Jochen Mannhart,
       and Prosper Ngabonziza*
       High-temperature-grown buffer layer boosts electron mobility in epitaxial La-doped BaSnO3/SrZrO3 heterostructures
       APL Materials 7, 041119 (2019)
[10].  S. H. Connell, S. K. Mtingwa, S. K. Abdel-Aal, S. Biira, T. D’Almeida, T. Dobbins, N. Khumbah, B. Masara, E.
       P. Mitchell, L. Norris, P. Ngabonziza, T. Ntsoane, A. Wague, and H. Winick
       Towards an African light source
       Biophysical Reviews 11, 499 (2019)
[9].    P. Ngabonziza
        The need for multidisciplinary scientific infrastructures in Africa: The importance of an African lightsource
        Elephant in the Lab. (2019). DOI: https://doi.org/10.5281/zenodo.3515004

2018

[8]. P. Ngabonziza, Y.Wang, and A. Brinkman
     Bulk contribution to magnetotransport properties of low-defect-density Bi2Te3 topological insulator thin films
     Physical Review Material 2, 044204 (2018)
[7].   P. Ngabonziza, M. P. Stehno, G. Koster, and A. Brinkman
        In-situ characterization tools for Bi2Te3 topological insulator nanomaterials
        Book chapter in the Springer book series on "In-situ Characterization Techniques for Nanomaterials". 
        Kumar C. (eds); Springer, Berlin, Heidelberg (2018)

[6].   A. P. Nono Tchiomo, G. Babu-Geetha, E. Carleschi, P. Ngabonziza, and B. P. Doyle
       Surface characterization of clean SrTiO3 (100) substrates by X-ray photoelectron spectroscopy
       Surface Science Spectra 25, 024001 (2018)
[5].  S. H. Connell, S.K. Mtingwa, T. Dobbins, B. Masara, E.P. Mitchell, L. Norris, P. Ngabonziza, 
      T. Ntsoane, M. Sekota, A. Wague, H. Winick, and M. Yousef
      The African light source project
      The African Review of Physics 13, 0019 (2018).

2016

[4].  P. Ngabonziza, M. P. Stehno, H. Myoren, V. A. Neumann, G. Koster, and A. Brinkman
      Gate-tunable transport properties of in-situ capped Bi2Te3 topological insulator thin films.
      Advanced Electronic Material 2, 1600157 (2016)

2015

[3].  P. Ngabonziza, R. Heimbuch, N. de Jong, R. A. Klaassen, M. P. Stehno, M. Snelder, A. Solmaz, S. V. Ramankutty,
      E. Frantzeskakis, E. van Heumen, G. Koster, M. S. Golden, H. J.W. Zandvliet, and A. Brinkman
      In-situ spectroscopy of intrinsic Bi2Te3 topological insulator thin films and impact of extrinsic defects
      Physical Review B 92, 035405 (2015)

2014

[2]. P. Ngabonziza, E. Carleschi and B.P. Doyle
    Signature of electron-phonon correlation in the band structure of Sr4Ru3O10
    Proceeding of the South African Institute for Physics 2012, 153 (2014)
[1]. D. P. Leusink, R.G.J. Smits, P. Ngabonziza, X.L. Wang, S. Wiedmann, U. Zeitler, and A. Brinkman
     Magnetoresistance From Broken Spin Helicity 
     https://doi.org/10.48550/arXiv.1412.4065 (2014)