Congmian Zhen | Physics | Best Researcher Award

Prof. Congmian Zhen | Physics | Best Researcher Award

College of Physics Hebei Normal University | China

Prof. Congmian Zhen is a physicist specializing in magnetic and electrical materials, with a strong research focus on complex magnetism in transition-metal oxides. Her work explores the mechanisms governing magnetic interactions, orbital ordering, magnetic anisotropy, magnetocrystalline anisotropy, and the emergence of intrinsic and topological Hall effects driven by non-coplanar magnetic structures. She has developed extensive expertise in epitaxial thin films, spinel oxides, and nanostructured functional materials, contributing significantly to the understanding of structure–property relationships in systems such as NiCo₂O₄, CoV₂O₄, MnCo₂O₄, and FeCo₂O₄. Her earlier research includes impactful studies on ohmic contacts for wide-bandgap semiconductors, low-dielectric-constant nanoporous materials, and multilayer magnetic films for high-density recording technologies. Over her career, she has produced a substantial body of publications in high-quality journals, demonstrating her leadership in investigating magnetic phase transitions, strain-induced anisotropy, electronic transport behavior, metal–insulator transitions, cation inversion, and defect-driven electronic states. Her research group has revealed important insights into how microstructure, synthesis conditions, and epitaxial strain modulate magnetic, electrical, and optical properties, providing pathways for designing next-generation spintronic and multifunctional materials. She has also collaborated internationally as a visiting scholar, enhancing global academic exchange and contributing to advanced experimental and theoretical studies in condensed-matter physics. Alongside her research, she has experience teaching core physics courses and guiding experimental training, reinforcing her commitment to both scientific discovery and academic mentorship.

Profile: Scopus

Featured Publications

Zhen, C., Zhang, X., Wei, W., Guo, W., Pant, A., Xu, X., Shen, J., Ma, L., & Hou, D. (2018). Nanostructural origin of semiconductivity and large magnetoresistance in epitaxial NiCo₂O₄/Al₂O₃ thin films. Journal of Physics D: Applied Physics, 51(14), 145308.

Zhen, C., Zhang, X., Wei, W., Guo, W., Pant, A., Xu, X., Shen, J., Ma, L., & Hou, D. (2017). Absence of Metallic Behavior in Epitaxial NiCo₂O₄ Thin Films: Role of Microstructural Disorder [Preprint]. arXiv.

Zhen, C., Liu, L., Lu, J., Feng, J., Hou, D., & others. (2025). Effect of trigonal distortion induced by strain on the perpendicular magnetic anisotropy of CoV₂O₄. Applied Physics Letters, 127(7), 072401.

Li, X., Zhen, C., Liu, X., … & Hou, D. (2025). Effect of Jahn–Teller distortion on magnetic anisotropy of Co-doped NiFe₂O₄. Journal, Volume(Issue), pages.

Zhao, M., Guo, W., Wu, X., Ma, L., Song, P., Li, G., Zhen, C., Zhao, D., & Hou, D. (2023). Zero-field-cooling exchange bias up to room temperature in the strained kagome antiferromagnet Mn₃.₁Sn₀.₉. Materials Horizons, 10, 4597–4608.

KHIROUNI Kamel | Physics and Astronomy | Best Researcher Award

Prof. Dr. KHIROUNI Kamel | Physics and Astronomy | Best Researcher Award

Directeur d’Ecole Doctorale Faculté des Sciences de Gabès, University of Gabes Tunisia

Kamel KHIRIOUNI, a dedicated physicist born on April 8, 1960, in Jandouba, Tunisia, is a seasoned expert in semiconductor and solid-state physics. Married and based in Gabès, Tunisia, he has been a cornerstone of academic excellence at the Faculté des Sciences de Gabès. With a prolific career spanning decades, his work encompasses research, teaching, and administrative leadership, reflecting his commitment to advancing science and education.

Profile

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Education 🎓

  • 1998: State Doctorate in Physics of Semiconductors, Faculté des Sciences de Tunis.
  • 1989: University Doctorate in Physics of Solids, INSA Toulouse, France.
  • 1986: Postgraduate Degree in Physics of Solids, Université Paul Sabatier, Toulouse, France.
  • 1985: Fourth-Year University Study in Physics, Faculté des Sciences et Techniques de Monastir, Tunisia.
  • Additional Diplomas: Scientific Language (English), Business Management, and Computer Science.

Professional Experience 💼

  • 2007–2020: Director of Research Laboratory and University Professor.
  • 2004–2007: University Professor.
  • 1999–2004: Assistant Professor.
  • 1990–1999: Assistant.
  • 1989–1990: Teacher.

Contributions include teaching physics across disciplines, authoring eight booklets and two books, developing lab experiences, and supervising numerous theses and master’s projects.

Research Interests 🔬

Kamel KHIRIOUNI’s research focuses on the preparation and characterization of materials, employing techniques like:

  • Czochralski and Bridgman elaboration.
  • Plasma Enhanced Chemical Vapor Deposition.
  • Admittance spectroscopy, photoluminescence, and photocurrent spectroscopy.
  • Optical absorption, DLTS, Hall effect, and more.

Awards and Achievements 🏆

  • Recognized for co-authoring over 350 scientific publications in peer-reviewed journals.
  • Leadership in research as the Director of the Common Services Unit and a driving force behind numerous completed research projects.

Publications Top Notes: 📚

Magnetic and spectroscopic properties of Ni–Zn–Al ferrite spinel: from the nanoscale to microscale†

Ac conductivity and dielectric behavior of a− Si: H/c− Si1− yGey/p− Si thin films synthesized by molecular beam epitaxial method

Structural, optical and electrical properties of barium titanate

Organic FETs using biodegradable almond gum as gate dielectric: A promising way towards green electronics

Structural, dielectric and electrical properties of Sol–gel auto-combustion technic of CuFeCr0.5Ni0.5O4 ferrite

Frequency and temperature-dependence of dielectric permittivity and electric modulus studies of the solid solution Ca 0.85 Er 0.1 Ti 1− x Co 4x/3 O 3 (0≤ x≤ 0.1)

The study of structural, dielectric, impedance and modulus properties of La0· 8Pb0· 2FeO3 doped by 25% Mg into the B-site