Exploring 2D topological nanomaterials using first-principles density functional theory

Authors

Gennevieve M. Macam National Institute of Physics, University of the Philippines Diliman

Abstract

Emergence has been the driving concept that led to the discovery of a plethora of new condensed phases of matter and materials. Here, we use first-principles calculations to explore topological 2D materials which rose as one of the remarkable materials with promising technological applications. This talk aims to illustrate the role of emergence through the discovery of topological and magnetic phases in a diverse class of materials — MXenes, transition metal pnictogen honeycomb structures, and zigzag-edged triangular graphene molecules. We discuss the rigorous search for quantum spin Hall insulating phases which host time-reversal symmetry-protected edge states. Moreover, altering the geometric structure and chemical composition can strongly change the physical properties which may lead to quantum anomalous Hall and magnetic phases. It is essential to explore and understand the nature of these phases as it is key to the progression of knowledge in physics and the development of next-generation electronics for a sustainable future.

About the Speaker

Gennevieve M. Macam, National Institute of Physics, University of the Philippines Diliman

Gennevieve Macam is an Associate Professor of Physics at the National Institute of Physics, University of the Philippines Diliman. She attained her Ph.D. in physics and gained postdoctoral experience at the National Sun Yat-sen University in Taiwan. Her research interests in computational condensed matter physics originated when she was an undergraduate student taking BS Applied Physics at the University of the Philippines Los Baños. She is currently researching on topological materials such as topological insulators, quantum anomalous Hall insulators, and Dirac semi-metals using first-principles density functional theory calculations. She also works on 2D materials, surfaces, kagome magnets, and multiferroic materials.

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Issue

2022: Proceedings of the 40th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2022-INV-3B-02

Section

Invited Presentations

Published

2022-08-16

How to Cite

[1]

GM Macam, Exploring 2D topological nanomaterials using first-principles density functional theory, Proceedings of the Samahang Pisika ng Pilipinas 40, SPP-2022-INV-3B-02 (2022). URL: https://proceedings.spp-online.org/article/view/SPP-2022-INV-3B-02.