Multiferroicity and magnetoelectric effects in two-dimensional materials

Authors

Nataša Stojić ⋅ IT The Abdus Salam International Centre for Theoretical Physics

Abstract

The recent discovery of magnetic two-dimensional (2D) van der Waals materials opened a myriad of new possibilities in the field of spintronics regarding the control and manipulation of their magnetic order. There are also 2D materials characterized by different types of ferroic order: ferroelectricity or ferroelasticity, which respond to electric and stress fields, respectively. In a small subset of materials two distinct types of order can be found, even simultaneously, giving rise to the so-called multiferroics. These multifunctional materials display unique properties due to their cross-couplings between ferroic orders; magnetoelectric effect, magnetoelastic and piezoelastic interactions. However, 2D multiferroics are rare and I will discuss the conditions and mechanisms of their formation. Furthermore, I will analyze the interplay between the magnetic and ferroelectric orders in selected 2D materials and their dependence on doping, strain, and electric field, based on first-principles density-functional-theory calculations. Understanding the coexisting orders can help in discovering new multifunctional materials and suggest new ways of spin-current manipulation.

About the Speaker

Nataša Stojić, The Abdus Salam International Centre for Theoretical Physics

Nataša Stojić obtained her PhD and MS degrees in Physics from the State University of New York at Stony Brook, USA. Prior to that, she obtained her BS degree in Physics from the University of Zagreb, Croatia. She was a postdoctoral research associate at The Abdus Salam International Centre for Theoretical Physics (ICTP) and the International School for Advanced Studies (SISSA) in Trieste, Italy. Currently, she is working at ICTP focusing her research efforts on computational investigations of two-dimensional materials with strong emphasis on their prospective applications in spintronics. She is using predominantly ab-initio computational methods. She has also pronounced interests in magnetism and physics of surfaces, interfaces, and nanostructures. She is actively involved in numerous collaborations and projects using syncrotron radiation techniques in materials science.

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Issue

2023: Proceedings of the 41st Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2023-INV-2F-01

Section

Invited Presentations

Published

2023-07-01

How to Cite

[1]

N Stojić, Multiferroicity and magnetoelectric effects in two-dimensional materials, Proceedings of the Samahang Pisika ng Pilipinas 41, SPP-2023-INV-2F-01 (2023). URL: https://proceedings.spp-online.org/article/view/SPP-2023-INV-2F-01.