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461 papers · 1 filter
Second-Order Synaptic Memory using Inherent Plasticity of Moiré Superlattices
Tanweer Ahmed, Kenji Watanabe, Takashi Taniguchi +2
Achieving synaptic functionality electronically in a single-element quantum material is a fundamental challenge, as conventional methods rely on the introduction of extrinsic charg…
Ferroelectric hysteresis in singly aligned graphene-hBN moiré superlattices
Bao Q. Tu, Tanweer Ahmed, Garen Avedissian +7
Ferroelectric materials have the unique ability to maintain an electric polarization which can be reversed under an external applied electric field. This property makes them valuab…
Anomalous Nonlinear Magnetoconductivity in van der Waals Magnet CrSBr
Junhyeon Jo, Manuel Suárez-Rodríguez, Samuel Mañas-Valero +6
Nonlinear magnetoconductivity (NLMC) is a nonreciprocal transport response arising in non-centrosymmetric materials. However, this ordinary NLMC signal vanishes at zero magnetic fi…
Orbital Hall effect from orbital magnetic moments of Bloch states: the role of a new correction term
Tarik P. Cysne, Ivo Souza, Tatiana G. Rappoport
We present a rigorous derivation of the matrix elements of the orbital magnetic moment (OMM) of Bloch states. Our calculations include the Berry connection term in the k-derivative…
Strain Engineering of Correlated Charge-Ordered Phases in 1T-TaS2
Rafael Luque Merino, Felix Carrascoso, Eudomar Henríquez-Guerra +3
Strain engineering is a powerful strategy for controlling the structural and electronic properties of two-dimensional materials, particularly in systems hosting charge density wave…
Measuring the magnetic anisotropy of the spin Hall effect and spin relaxation length in nickel and permalloy via electrical spin injection
Eoin Dolan, Jone Mencos, Williams Savero Torres +5
The spin Hall effect in ferromagnets is of great interest in the field of spintronics, and while the effect has been quantified in many materials, the dependence of the spin Hall a…