Results 51 to 60 of about 1,441 (235)
Magnetic and Crystal Symmetry Control on Spin Hall Conductivity in Altermagnets. [PDF]
Adv Sci (Weinh)Crystal structures and schematic illustrations of the spin Hall effect (SHE) in altermagnets. High‐symmetry RuO2 exhibits conventional SHE, while tilted RuO2 shows trivial unconventional SHE (USHE) caused by structural tilting. CrSb and MnTe, with reduced magnetic symmetry, display intrinsic USHE arising from symmetry‐driven spin–momentum locking ...
Jeong D, Kang SH, Kwon YK.
europepmc +2 more sources
Physical Review Research, 2020 Using spin-resolved time-of-flight momentum microscopy, the Rashba splitting of the Tamm surface state is investigated. This state resides at the Fermi level in a projected bulk band gap of the close-packed (0001) surface of hcp Re.
H. J. Elmers +11 more
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Anatomy of nanomagnetic switching at a 3D topological insulator PN junction
Scientific Reports, 2023 A P-N junction engineered within a Dirac cone system acts as a gate tunable angular filter based on Klein tunneling. For a 3D topological insulator with a substantial bandgap, such a filter can produce a charge-to-spin conversion due to the dual effects ...
Yunkun Xie +3 more
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Spin-momentum locking from topological quantum chemistry: Applications to multifold fermions
Physical Review B, 2022 28 pages, 6 ...
Mao Lin +5 more
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Magnetotransport in Bi2Se3 thin films epitaxially grown on Ge(111)
AIP Advances, 2018 Topological insulators (TIs) like Bi2Se3 are a class of material with topologically protected surface states in which spin-momentum locking may enable spin-polarized and defect-tolerant transport.
T. Guillet +8 more
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Direct observation of the effects of spin dependent momentum of light in optical tweezers
APL Photonics, 2020 We demonstrate that tight focusing of a circularly polarized Gaussian beam in optical tweezers leads to spin-momentum locking—with the transverse momentum density (Poynting vector) being helicity-dependent, while the transverse spin angular momentum ...
Debapriya Pal +3 more
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Altermagnetism: spin-momentum locked phase protected by non-relativistic symmetries [PDF]
, 2021 Abstract The search for novel magnetic quantum phases, phenomena and functional materials has been guided by relativistic magnetic-symmetry groups in coupled spin and real space from the dawn of the field in 1950s to the modern era of topological matter.
Tomas Jungwirth +2 more
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Advanced Functional Materials, EarlyView.Circular photogalvanic effect measurements and first‐principles calculations reveal spin‐splitting states in solution‐processed bournonite films (CuPbSbS3) due to structural and bulk inversion asymmetry. The results provide experimental confirmation of coexisting Rashba and Dresselhaus spin‐splitting states in this non‐centrosymmetric chalcogenide ...
Aeron McConnell +5 more
wiley +1 more source
Imaging of Biphoton States: Fundamentals and Applications
Advanced Functional Materials, EarlyView.Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
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Advanced Functional Materials, EarlyView.AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi +9 more
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