She holds a PhD in Experimental Condensed     Matter Physics and an M.Phil. from Quaid-i-Azam University, Pakistan. With     over two years of teaching experience as a Visiting Lecturer at     Quaid-i-Azam University, she has contributed to undergraduate and     postgraduate research and education. She has also participated in two research     projects funded by the Higher Education Commission of Pakistan as a     research assistant. Her passion lies in mentoring students and advancing     research in condensed matter physics through innovative experimental     techniques.

研究方向

Dr. Mumtaz research focuses on Material Science and     Experimental Condensed Matter Physics, with a particular emphasis on     multiferroic materials.

Her work involves investigating these materials in various     forms, including thin films, single crystals, and bulk ceramics. During her     PhD, her research centered on pure and doped BiFeO₃, and now currently     exploring composite multiferroics such as BaTiO₃-CoFe₂O₄.     She has prepared thin films using techniques such as spin coating using     unique diol procrdure and pulsed laser deposition (PLD).

She has developed comprehensive expertise in a wide range of     experimental techniques aligned with her research interests. Her skills     include X-ray diffraction (XRD), scanning electron microscopy (SEM),     diffuse reflectance spectroscopy, and various transport measurements such     as DC resistivity, AC impedance, and IV characterization. She is also     proficient in low- and high-temperature dielectric measurements, as well as     ferroelectric and magnetic property assessments, with a particular focus on     exploring the interaction between ferroelectric and ferromagnetic     behaviors. Additionally, she possesses hands-on experience working with     polymers like PVDF, its copolymers, and their composites, further     broadening her versatility in material research.

代表性成果

1.       Peculiar magnetism in Eu substituted BiFeO3 and its correlation with local structure.     Fiza Mumtaz, G.Hassnain Jaffari, S. Ismat Shah Journal of Physics: condensed matter (2018), 30 (43), 435802.

2.       Chemical pressure exerted by rare earth substitution in BiFeO3: Effect on crystal symmetry, band structure and     magnetism. Fiza Mumtaz, Saadia Nasir, G.Hassnain Jaffari, S. Ismat Shah, Journal of Alloys and compounds (2021), 876, 160178.

3.       Correlation between the unit cell parameters and electronic transitions in Bi1-xEuxFeO3 thin films.     Fiza Mumtaz,     G. Hassnain Jaffari , G. Shabir Khan, Journal of Materials Chemistry and physics, 300 (2023) 127541.

4.       Model     based quantification of inter/intra grain electrical parameters, hopping polydispersivity, and local energy barrier profile of BiFeMnO3 synthesized by different methods. Fiza Mumtaz, G. Hassnain Jaffari, Salma Syed, Shahid Khan Journal of Physics and Chemistry of solids (2021) 110334

5.       Structural phase transition, phase purity,     inter-/intra-grain electrical parameters and local energy barrier profile as a function of aliovalent and     isovalent substitution in BiFeO3. Fiza Mumtaz, G. Hassnain Jaffari, S.Ismat Shah, Journal of Physics and Chemistry of Solids, 167 (2022) 110748.

6.       Quantitative     Analysis of Various dⁿ Electronic Configuration of transition     metal ions using Tanabe Sugano Diagrams in Bi1-xBaxFe1-yMnyO3 Thin Films. Fiza Mumtaz, Hassan Ali, G. Hassnain Jaffari, and Jun-Yi Ge, Thin Solid Films, (2025) 140699.

7.       Temperature dependent phase transition in BaFe2O4 composited with BaFeO3-δ solid solutions prepared under     sealed isolated environment Fiza Mumtaz, Sumbal Amin, G. Hassnain Jaffari, S. Ismat Shah, Awais Ali and Junyi Ge, Physica B: Condensed Matter, (2025) 417323.

8.           Correlation between the composition, phase, band structure, ferroelectric and leakage responses of Bi1-

xBaxFe1-yTiyO3 thin films.     Fiza Mumtaz, M.H. Khan, G. Hassnain Jaffari, Thin     Solid Films, 758 (2022) 139448.

9.       Raman spectroscopy study and dielectric     anomalies in Bi1-xEuxFeO3 thin films.     Fiza Mumtaz, G. Hassnain Jaffari, G. Shabir Khan, Thin Solid Films 789 (2024) 140175

10.        Correlation between Positive temperature coefficient of resistance, Double Schottky Barrier, and anionic substituents in BiFeO₃.     Fiza Mumtaz, G. Hassnain     Jaffari, S.Ismat Shah, Journal of Journal of Physica B: Condensed matter     (2023) 414993.