In:
Journal of Materials Chemistry C, Royal Society of Chemistry (RSC), Vol. 10, No. 8 ( 2022), p. 3188-3195
Abstract:
Two-dimensional multiferroic materials, combining the ferroelectric (FE) state with the ferromagnetic (FM) state, have long been regarded as one of the core topics in materials science. However, realizing a low-energy-dissipation approach to read the FE states is still a hard task. Here, we propose a bilayer phosphorene halogenated by chlorine (Cl) adatoms to induce the layer-dependent single-atom FE states with vertical electric polarization and construct the related spin caloritronic devices. Our theoretical studies uncover several interesting findings: (i) the halogenated monolayer phosphorene produces single-atom FE states and two nearly symmetrical spin-splitting states around the Fermi level, providing two spin-dependent transport channels for the generation of a well-defined spin-Seebeck effect (SSE); (ii) a pure thermal spin current can be obtained by adjusting the Cl-adatom concentration or by using an in-plane strain engineering technique; (iii) the spin-Seebeck current is tightly associated with the layer-dependent FE state, and they both can be switched simultaneously to the other layer by an external electric field. Our theoretical results not only propose a low-energy-dissipation approach to realize the readout of single-atom FE states, but also develop further the new interdisciplinary subject, i.e. , the spin-ferroelectro-caloritronics.
Type of Medium:
Online Resource
ISSN:
2050-7526
,
2050-7534
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
2702245-6
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