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            Heterostructure Optoelectronics

Zhang, Qi; Kang, Zhuo; Zhang, Yue

doi:10.1002/9783527833887.ch8

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Topological Multiferroic Phase-1

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2024

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“…Ultimately, this leads to a topologically induced multiferroic, as illustrated in Fig. (3), which shows that the dipolar moment density and the spin dipolar moment density do not vanish.…”

Section: Topological Multiferroic Phase-mentioning

confidence: 99%

Emerging Topological Multiferroics from the 2D Rice-Mele Model

Vergara,

Saez,

Castro

et al. 2024

Preprint

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We introduce a novel two-dimensional dimerized lattice model that reveals a remarkable feature: the emergence of a complex, nontrivial topological multiferroic phase marked by zero Berry curvature and a significant Berry connection that influences the model's bulk topology. This model extends the one-dimensional Rice-Mele Hamiltonian model to explore polarization-dependent topological properties in a 2D Su-Schrieffer-Heeger lattice, providing a detailed framework for studying the impact of symmetry-breaking and spatially varying potentials on electronic and spin properties. The findings are particularly relevant for spintronics, offering a foundation for topologically robust and electrically controlled spin-conducting edge states, with implications for developing advanced spin-dependent transport devices.

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“…Ultimately, this leads to a topologically induced multiferroic, as illustrated in Fig. (3), which shows that the dipolar moment density and the spin dipolar moment density do not vanish.…”

Section: Topological Multiferroic Phase-mentioning

confidence: 99%