Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 54, Issue 11, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1361-6463/abcc25
Keywords
spin-orbit coupling; ferroelectrics; spintronics
Categories
Funding
- National Science Foundation (NSF) through the MRSEC [DMR-1420645]
- National Science Foundation (NSF) through E2CDA program [ECCS-1740136]
- Semiconductor Research Corporation (SRC) through the nCORE program
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Spin-orbit coupling in solids plays a crucial role in linking the spin degree of freedom to the orbital motion of electrons. Different crystal symmetries can result in various spin textures, offering a promising platform for exploring the coupling between spin, orbital, valley, and lattice degrees of freedom in solids.
Spin-orbit coupling (SOC) links the spin degree of freedom to the orbital motion of electrons in a solid and plays an important role in the emergence of new physical phenomena. In non-centrosymmetric materials, the SOC locks the electron's spin direction to its momentum resulting in non-trivial spin textures in the reciprocal space. Depending on the crystal symmetry, the spin texture may exhibit Rashba, Dresselhaus, persistent, or more intricate configurations. In ferroelectric materials these spin textures are coupled to the ferroelectric polarization and thus can be controlled by its orientation and magnitude. This provides a promising platform to explore the coupling between spin, orbital, valley, and lattice degrees of freedoms in solids and opens a new direction for nonvolatile spintronic devices, such as a spin-?eld-effect transistor and a valley spin valve. Here, we review the recent advances in spin-texture physics of ferroelectric materials and outline possible device implications.
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