Vertical ferroelectric switching by in-plane sliding of two-dimensional bilayer WTe2

Nanoscale ◽  
2019 ◽  
Vol 11 (40) ◽  
pp. 18575-18581 ◽  
Author(s):  
Xingen Liu ◽  
Yali Yang ◽  
Tao Hu ◽  
Guodong Zhao ◽  
Chen Chen ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Spin Texture ◽  
Ferroelectric Switching ◽  
Spin Fet

Vertical ferroelectric switching by in-plane sliding of two-dimensional bilayer WTe2, leading to the spin texture and spin-FET design with strain tunability.

scholarly journals Complex magnetism of the two-dimensional antiferromagnetic Ge2F: from a Néel spin-texture to a potential antiferromagnetic skyrmion

RSC Advances ◽  
2021 ◽  
Vol 11 (15) ◽  
pp. 8654-8663
Author(s):  
Fatima Zahra Ramadan ◽  
Flaviano José dos Santos ◽  
Lalla Btissam Drissi ◽  
Samir Lounis
Keyword(s):  
Density Functional Theory ◽  
Magnetic Properties ◽  
Density Functional ◽  
Low Energy ◽  
Two Dimensional ◽  
Functional Theory ◽  
2D Material ◽  
Energy Models ◽  
Spin Texture

Based on density functional theory combined with low-energy models, we explore the magnetic properties of a hybrid atomic-thick two-dimensional (2D) material made of germanene doped with fluorine atoms in a half-fluorinated configuration (Ge2F).

Magnetoelectric coupling dependent on ferroelectric switching paths in two-dimensional perovskite multiferroics

2021 ◽  
Vol 103 (22) ◽  
Author(s):  
Xiaofan Shen ◽  
Qunyong Luo ◽  
Zongshuo Wu ◽  
Ying Zhou ◽  
Jianli Wang ◽  
...  
Keyword(s):  
Magnetoelectric Coupling ◽  
Two Dimensional ◽  
Ferroelectric Switching

scholarly journals Ferroelectric switching of a two-dimensional metal

Nature ◽  
2018 ◽  
Vol 560 (7718) ◽  
pp. 336-339 ◽  
Author(s):  
Zaiyao Fei ◽  
Wenjin Zhao ◽  
Tauno A. Palomaki ◽  
Bosong Sun ◽  
Moira K. Miller ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Ferroelectric Switching

Manipulation of the Rashba effect in layered tellurides MTe (M = Ge, Sn, Pb)

2020 ◽  
Vol 8 (15) ◽  
pp. 5143-5149
Author(s):  
Chang Liu ◽  
Heng Gao ◽  
Yongchang Li ◽  
Kangying Wang ◽  
Lee A. Burton ◽  
...  
Keyword(s):  
Electric Field ◽  
Two Dimensional ◽  
Rashba Effect ◽  
Rashba Spin ◽  
Spin Fet

Designing an electric-field controlled Rashba spin FET on two-dimensional GeTe.

Symmetry-protected full-space persistent spin texture in two-dimensional materials

2022 ◽  
Vol 105 (4) ◽  
Author(s):  
Junyi Ji ◽  
Feng Lou ◽  
Rui Yu ◽  
J. S. Feng ◽  
H. J. Xiang
Keyword(s):  
Two Dimensional ◽  
Two Dimensional Materials ◽  
Spin Texture ◽  
Symmetry Protected

Structurally ferroelectric SrMgF4

2001 ◽  
Vol 58 (1) ◽  
pp. 34-37 ◽  
Author(s):  
S. C. Abrahams
Keyword(s):  
Crystal Structure ◽  
Curie Temperature ◽  
Spontaneous Polarization ◽  
Two Dimensional ◽  
Acta Cryst ◽  
Ferroelectric Switching

The crystal structure of 0.06% Ce-doped SrMgF4, strontium magnesium tetrafluoride, reported by Ishizawa et al. [(2001), Acta Cryst. C57, 784–786]  is shown to satisfy the structural criteria for ferroelectricity and to have a predicted Curie temperature T c ≃ l450 K. The estimated spontaneous polarization P s ≃ 11 × 10−2 C m−2 is consistent with classification as a two-dimensional ferroelectric in which minor Δx and major Δy, Δz atomic coordinate component displacements are required for ferroelectric switching.

DESIGN OPTIMIZATION OF A FERROELECTRIC NANO-ACTUATOR USING PHASE-FIELD MODELING

2014 ◽  
Vol 1674 ◽  
Author(s):  
Ananya Renuka Balakrishna ◽  
John E. Huber
Keyword(s):  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Two Dimensional ◽  
Phase Field Modeling ◽  
Ferroelectric Crystal ◽  
Surface Conditions ◽  
Field Modeling ◽  
Working Principle ◽  
Ferroelectric Switching

ABSTRACTA ferroelectric crystal with charge-free surface conditions contains polarized domains which can form a flux closure with zero net polarization. In the presence of an external electric field, the flux closure in a two-dimensional continuum reorients its spontaneous polarization to align with the field. Based on this concept of ferroelectric switching coupled with mechanical straining, we demonstrate the working principle of a ferroelectric nano-actuator. The behavior of the actuator is explored under the action of electro-mechanical loading and its mechanism is simulated with a 2D phase-field model. The design of nano-actuator is modified to achieve greater actuation displacements by bending a thin device.

scholarly journals Designing spin-textured flat bands in twisted graphene multilayers via helimagnet encapsulation

2D Materials ◽  
2022 ◽  
Author(s):  
Guangze Chen ◽  
Maryam Khosravian ◽  
Jose Lado ◽  
Aline Ramires
Keyword(s):  
Helical Structure ◽  
Bilayer Graphene ◽  
Flat Band ◽  
Two Dimensional ◽  
Local Exchange ◽  
Flat Bands ◽  
Starting Point ◽  
Twisted Bilayer Graphene ◽  
Spin Texture ◽  
Twisted Graphene

Abstract Twisted graphene multilayers provide tunable platforms to engineer flat bands and exploit the associated strongly correlated physics. The two-dimensional nature of these systems makes them suitable for encapsulation by materials that break specific symmetries. In this context, recently discovered two-dimensional helimagnets, such as the multiferroic monolayer NiI2, are specially appealing for breaking time-reversal and inversion symmetries due to their nontrivial spin textures. Here we show that this spin texture can be imprinted on the electronic structure of twisted bilayer graphene by proximity effect. We discuss the dependence of the imprinted spin texture on the wave-vector of the helical structure, and on the strength of the effective local exchange field. Based on these results we discuss the nature of the superconducting instabilities that can take place in helimagnet encapsulated twisted bilayer graphene. Our results put forward helimagnetic encapsulation as a powerful way of designing spin-textured flat band systems, providing a starting point to engineer a new family of correlated moire states.

Sign in / Sign up

Export Citation Format

Share Document