Embedded Files
Journal Roles
Journal Roles
Reviewer, American Journal of Mechanical and Materials Engineering
Nov, 2024 - Present
Reviewer, Photonics Research
Jan, 2025 - Present
Journals
Journals
Mai, Thuc T., Amber McCreary, K. F. Garrity, R. L. Dally, Sambridhi Shah, Bryan C. Chakoumakos, Md Nasim, Afroj Taj, Jeffrey W. Lynn, Michael A. McGuire, Benjamin S. Conner, Mona Zebarjadi, Janice L. Musfeldt, A. R. Hight Walker, Rahul Rao and Michael A. Susner. “Spin-lattice entanglement in CoPS_3.” (2025).
Complex chalcogenides in the 𝑀PS3 family of materials (𝑀 =Mn, Fe, Co, and Ni) display remarkably different phase progressions depending upon the metal center orbital filling, character of the P–P linkage, and size of the van der Waals gap. There is also a stacking pattern and spin-state difference between the “lighter” and “heavier” transition-metal-containing systems that places CoPS3 at the nexus of these activities. Despite these unique properties, this compound is underexplored. Here, we bring together Raman scattering spectroscopy and infrared absorption spectroscopy with x-ray techniques to identify a structural component to the 119 K magnetic ordering transition. With temperature-dependent Raman scattering, we discover a set of magnon-phonon pairs that engages in avoided crossings below 𝑇Néel. These findings point to strong spin-phonon entanglement as well as opportunities to control these effects under external stimuli.
Md Sabbir Akhanda, Katherine A. Schlaak, Eleanor F. Scott, Md Nasim Afroj Taj, Sarah J. Watzman, Mona Zebarjadi; Thermomagnetic responses of semimetals. J. Appl. Phys. 28 June 2024; 135 (24): 240901.
Solid-state thermomagnetic modules operating based on the Nernst–Ettingshausen effects are an alternative to conventional solid-state thermoelectric modules. These modules are appropriate for low-temperature applications where the thermoelectric modules are not efficient. Here, we briefly discuss the application, performance, similarities, and differences of thermoelectric and thermomagnetic materials and modules. We review thermomagnetic module design, Nernst coefficient measurement techniques, and theoretical advances, emphasizing the Nernst effect and factors influencing its response in semimetals such as carrier compensation, Fermi surface, mobility, phonon drag, and Berry curvature. The main objective is to summarize the materials design criteria to achieve high thermomagnetic performance to accelerate thermomagnetic materials discovery.
Mahin Ahamed, Md. Nasim Afroj, Shadman Shahid, and Muhammad Anisuzzaman Talukder, "Wavelength selective beam-steering in a dual-mode multi-layer plasmonic laser," Opt. Express 32, 19895-19909 (2024)
Due to its improved localization and confinement of light in single or multiple wavelength modes, nanolasers based on plasmonic crystals have grown in popularity in recent years. However, the lasing modes are not spatially separated, making applying different modes to different applications difficult. This work demonstrates an effective technique for spatially separating the two modes of a merged lattice metal nanohole array-based dual-mode plasmonic laser. A flat dielectric metasurface-based beam-splitter that exploits phase gradient profiles on the interfaces has been added to the laser to separate the modes into distinct spatial beams. The proposed structure successfully separates two modes by ∼23°, and the separation can be raised to ∼63° by tuning structural parameters such as the radius of the nanocylinders and the number of supercell rows. In addition, multiple beams can be generated, allowing for manual beam steering. This approach has a high emission output with a narrow linewidth, clarity, and a substantial degree of future tunability potential. The proposed integrated structure will provide a novel means of device miniaturization and may also serve advanced optical applications such as optical communication, quantum optics, interferometry, spectroscopy, and light detection and ranging (LiDAR).doi.org/10.1364/OE.518705
Conference Proceedings
Conference Proceedings
M. S. Mahmud, M. M. R. Nayan, S. Hasan and M. N. A. Taj, "A Deep Ensemble Model with an Efficient Feature for Multi-class Arrhythmia Classification Utilizing 12-Lead ECG Signal," 2022 12th International Conference on Electrical and Computer Engineering (ICECE), Dhaka, Bangladesh, 2022, pp. 48-51.
Rifat Nobony, M. D. Shahrukh Adnan Khan, Sadribul Hassan Sakib, Md. Amanat Hossain, S. M. Tasmeeh Ahsan, Md. Hasanuzzaman, Chockalingam Aravind Vaithilingam, Md. Pabel Sikder, Md. Nasim Afroj Taj; Analysis of education 4.0: An in-depth investigation & modelling for POST-COVID19 smart city planning. AIP Conf. Proc. 3 May 2024; 2915 (1): 020011.
M. D. Shahrukh Adnan Khan, Md. Hasanuzzaman, Sufia Khatun, Muhammad Jahirul Islam, Md. Pabel Sikder, Chockalingam Aravind Vaithilingam, Abid Aziz, Sadribul Hassan, Amanat Hossain, Md. Nasim Afroj Taj; A techno-statistical analysis of smart living demands. AIP Conf. Proc. 3 May 2024; 2915 (1): 020019.
Dr. Md. S. A. Khan, Md. N. A. Taj, K. M. KADIR, and S. Khatun, “A Comparative Analysis of Smart Education Hub in Terms of Cost-Effective Infrastructure Modelling & System Design,” 18th EURECA Conference, 2022.
https://jestec.taylors.edu.my/Special%20Issue%20IEC2022/IEC2022_19.pdf
Dr. Md. S. A. Khan et al., “Pre- and Post-COVID-19 Study of Smart Living & Demand Analysis - A Part of Smart City Modelling,” 18th EURECA Conference, 2022.
https://jestec.taylors.edu.my/Special%20Issue%20IEC2022/IEC2022_20.pdf
Oral Presentations
Oral Presentations
M. N. A. Taj and M. Zebarjadi, “Nernst Effect in Bulk GaGeTe: Exploring Thermomagnetic Response of a Layered Topological Semimetal,” EN05.06: Metallic, Semi-Metallic and Topological Thermoelectrics, MRS Fall Meeting, Boston, MA, USA, Dec. 3, 2025. Presentation ID: EN05.06.07.
S. Bati, M. N. A. Taj, and M. Zebarjadi, “Experimental Study of Transport Properties of GaGeTe Thin Films,” EN05.02: Advances in Thermoelectric Material Design and Synthesis II, MRS Fall Meeting, Boston, MA, USA, Dec. 1, 2025. Presentation ID: EN05.02.06.
Page updated
Google Sites
Report abuse