Rich magnetic phase transitions and completely dual-spin polarization of zigzag PC₃ nanoribbons under uniaxial strain

Abstract

Among many modulation methods, strain engineering is often chosen for nanomaterials to produce continuously tunable band gaps. Inspired by the recently reported two-dimensional material PC3, we explore the tuning of...

Momentum matching induced giant magnetoresistance in two-dimensional magnetic tunnel junctions

“…Starting from this discovery, a new subject called spintronics appeared and the spin degree of freedom of electrons as a carrier of information started to attract the intensive attention of researchers. 3–12 Traditional three dimensional MTJs are composed of an insulator sandwiched between two ferromagnetic leads. 13 When the magnetizations of the two leads are parallel, one spin channel will be in a highly conducting state and the other spin channel will be in a lowly conducting state.…”

The effect of light-irradiated area on the spin dependent photocurrent in zigzag graphene nanoribbon junctions

“…The generation of photocurrents in systems lacking spatial inversion symmetry, known as the photogalvanic effect (PGE), was first proposed by Ivchenko and Pikus 19 and Belinicher, 20 and observed in conventional semiconductors in experiment by Asnin 21 and others, and has been explored extensively by researchers since then. 22–29 In recent years, with the rise of two-dimensional (2D) materials and their use in nanoscale electronics, 30–33 the interest of PGE in photocurrent generation has also started to arise in 2D systems. Actually, pure spin currents induced by PGEs have been predicted in certain two-dimensional systems which are spin-polarized and lack spatial inversion symmetry.…”

Giant tunneling electroresistance in a 2D bilayer-In2Se3-based out-of-plane ferroelectric tunnel junction

“…Together with the rise and intensive study of two-dimensional (2D) materials, 17–23 2D ferroelectric materials have become a new research direction of ferroelectric materials due to their atomic thickness and ideal surfaces that are free from dangling bonds and structural reconstruction. At present, many ferroelectric materials with in-plane or out-of-plane spontaneous polarization have been obtained by theoretical predictions and experimental methods.…”