The coupling of different phenomena, such as ferroelectric or magnetic order, often mediated by spin-orbit interaction, offers a rich playground for emergent phenomena in multifunctional materials. In this chapter, we focus on multiferroics and ferroelectric semiconductors showing a strong Rashba effect, we explain the motivations behind their study, and we discuss a few prototypical highlights (from BiFeO3 to spin-spiral TbMnO3, from E-type manganites to GeTe). Our perspective is focused on the key role that first-principles calculations played in this field in recent years, in terms of understanding microscopic mechanisms, quantifying relevant quantities, and guiding the interpretation of experimental results, in view of possible materials optimization for technological purposes.
Picozzi, S. (2020). Multiferroic and Ferroelectric Rashba Semiconductors. In W. Andreoni, S. Yip (a cura di), Handbook of Materials Modeling Applications: Current and Emerging Materials (pp. 375-400). Springer International Publishing [10.1007/978-3-319-44680-6_113].
Multiferroic and Ferroelectric Rashba Semiconductors
Picozzi S.
2020
Abstract
The coupling of different phenomena, such as ferroelectric or magnetic order, often mediated by spin-orbit interaction, offers a rich playground for emergent phenomena in multifunctional materials. In this chapter, we focus on multiferroics and ferroelectric semiconductors showing a strong Rashba effect, we explain the motivations behind their study, and we discuss a few prototypical highlights (from BiFeO3 to spin-spiral TbMnO3, from E-type manganites to GeTe). Our perspective is focused on the key role that first-principles calculations played in this field in recent years, in terms of understanding microscopic mechanisms, quantifying relevant quantities, and guiding the interpretation of experimental results, in view of possible materials optimization for technological purposes.
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