Three-dimensional Rashba spin splitting dominated by out-of-plane spin polarization

Xie, Rong-Rong; Cao, Panfeng; Xu, Zheyuan; Xu, Boyi; Fu, JinYue; Zhu, Xiaoli; Fu, Xiquan; Xie, Songhai; Jiang, Ying; Pan, Anlian

doi:10.1103/physrevb.107.155436

Cited by 6 publications

(1 citation statement)

References 112 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spin components polarized parallel to the laboratory x – y plane are termed in-plane spin components ( S x and S y ), whereas the out-of-plane spin component ( S z ) is along the z- axis. In both cases, the in-plane spin components were minuscule compared with the out-of-plane spin components, which we ascribed to in-plane symmetry breaking induced by the chiral organic spacers ( 45 , 46 ). This result agrees with the experiments in which we detected the spin current with out-of-plane spin polarization.…”

Section: Lattice Chirality Effectsmentioning

confidence: 79%

Two-dimensional chiral perovskites with large spin Hall angle and collinear spin Hall conductivity

Abdelwahab,

Kumar,

Bian

et al. 2024

Science

View full text Add to dashboard Cite

Two-dimensional hybrid organic-inorganic perovskites with chiral spin texture are emergent spin-optoelectronic materials. Despite the wealth of chiro-optical studies on these materials, their charge-to-spin conversion efficiency is unknown. We demonstrate highly efficient electrically driven charge-to-spin conversion in enantiopure chiral perovskites (R/S-MB) 2 (MA) 3 Pb 4 I 13 (〈 n 〉 = 4), where MB is 2-methylbutylamine, MA is methylamine, Pb is lead, and I is iodine. Using scanning photovoltage microscopy, we measured a spin Hall angle θ sh of 5% and a spin lifetime of ~75 picoseconds at room temperature in 〈 n 〉 = 4 chiral perovskites, which is much larger than its racemic counterpart as well as the lower 〈 n 〉 homologs. In addition to current-induced transverse spin current, the presence of a coexisting out-of-plane spin current confirms that both conventional and collinear spin Hall conductivities exist in these low-dimensional crystals.

show abstract

Section: Lattice Chirality Effectsmentioning

confidence: 79%

Two-dimensional chiral perovskites with large spin Hall angle and collinear spin Hall conductivity

Abdelwahab,

Kumar,

Bian

et al. 2024

Science

View full text Add to dashboard Cite

show abstract

Spintronic Phenomena and Applications in Hybrid Organic–Inorganic Perovskites

Lu,

Wang,

Han

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

The spin degree of freedom in hybrid organic–inorganic perovskites (HOIPs) has become a rapidly growing research topic in both HOIPs and spintronics fields due to its fundamental scientific significance and tight relevance with optoelectronics. The flourishing achievements of HOIP spintronics call for a timely review to summarize the key progress and guide future developments. In this review, classical spintronic phenomena based on spin‐orbit coupling (SOC) are discussed, especially Rashba splitting and related applications such as spin‐charge conversion. Owing to the unique chirality‐spin coupling, spintronics in chiral HOIPs are particularly focused on, including chirality‐induced spin selectivity (CISS). Based on the complex band structure and carrier/exciton, spin dynamics is also widely investigated and constitutes an indispensable part of HOIP spintronics. Aside from the three main threads, other spintronic phenomena such as magneto‐optical coupling and device exploration are involved as promising opportunities. Despite the continuous breakthroughs in HOIP spintronics, more efforts are required to expand material systems, explore new physics, and optimize device configurations for enhanced performance and high integration. A deep understanding of spin behaviors in HOIPs will create a new platform beyond conventional optoelectronic and photovoltaic applications.

show abstract

Releasing trapped excitons in 2D perovskites via pressure annealing: a cooperative interplay between lattice strain and the electronic structure

Freitas,

Caturello,

Tofanello

et al. 2025

Mater. Chem. Front.

View full text Add to dashboard Cite

show abstract

Three-dimensional Rashba spin splitting dominated by out-of-plane spin polarization

Cited by 6 publications

References 112 publications

Two-dimensional chiral perovskites with large spin Hall angle and collinear spin Hall conductivity

Two-dimensional chiral perovskites with large spin Hall angle and collinear spin Hall conductivity

Spintronic Phenomena and Applications in Hybrid Organic–Inorganic Perovskites

Releasing trapped excitons in 2D perovskites via pressure annealing: a cooperative interplay between lattice strain and the electronic structure

Contact Info

Product

Resources

About