Investigating Quantum Spin-Textures Using Universal MJ Hamiltonians

Abstract

This work introduces a pair of novel universal MJ spintronic models that precisely mirror the complex spin textures observed in spintronic materials. The spin-orbit coupled (SOC) Hamiltonians H_MJ1 and H_MJ2 reveal a range of novel and intriguing spin phenomena by modulating spin-orbit interactions. The Hamiltonian H_MJ1 reshapes the existing paradigm, providing a more robust and versatile framework than the Hamiltonian H_RD, with the potential to catalyze new advancements in the study of quantum materials. H_MJ1 encapsulates two distinct spin textures: a unidirectional, momentum-independent persistent spin texture (PST), and a bidirectional (partial) PST. In contrast Hamiltonian H_MJ2 portrays a spiral spin texture, drawing a conceptual link to the cosmological process of expansion and contraction, mirrored within a two-dimensional quantum framework. We also explore the fundamental aspects of earlier analytical models that underpin the construction of the present MJ spintronic model. The physical interpretations of these models are illustrated graphically, and the emerging spin phenomena resulting from complex SOC are elucidated using a simple vector model.

References in corpus (11)

• Emergence of the persistent spin helix in semiconductor quantum wells
• Direct mapping of the formation of a persistent spin helix: Supplementary information
• Direct determination of spin orbit interaction coefficients and realization of the persistent spin helix symmetry
• Datta-Das type spin-field effect transistor in non-ballistic regime
• Parallel spin-momentum locking in a chiral topological semimetal
• Tunable spin textures in polar antiferromagnetic hybrid organic inorganic perovskites by electric and magnetic fields
• Rashba and Dresselhaus effects in 2D Pb-I-based perovskites
• Rashba dominated spin-splitting in the bulk ferroelectric oxide perovskite KIO3
• Unconventional spin textures emerging from a universal symmetry theory of spin-momentum locking
• Spin-momentum locking from topological quantum chemistry: applications to multifold fermions
• (110) Facet of MgTe Zinc Blende Semiconductor: A Holy Grail for Modern Spintronics