Spin polarization switching in monolayer graphene through a Rashba multi-barrier structure

2013 ◽  
Vol 102 (14) ◽  
pp. 142407 ◽  
Author(s):  
Qingtian Zhang ◽  
Zijing Lin ◽  
K. S. Chan
Keyword(s):  
Spin Polarization ◽  
Polarization Switching ◽  
Monolayer Graphene ◽  
Barrier Structure

scholarly journals Self-similar transport, spin polarization and thermoelectricity in complex silicene structures

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
R. Rodríguez-González ◽  
L. M. Gaggero-Sager ◽  
I. Rodríguez-Vargas
Keyword(s):  
Physical Properties ◽  
Spin Polarization ◽  
Structural Parameters ◽  
Transition Metal Dichalcogenides ◽  
Monolayer Graphene ◽  
Complex Geometries ◽  
2D Material ◽  
Metal Dichalcogenides ◽  
Self Similar ◽  
Mott Formula

Abstract 2D materials open the possibility to study Dirac electrons in complex self-similar geometries. The two-dimensional nature of materials like graphene, silicene, phosphorene and transition-metal dichalcogenides allow the nanostructuration of complex geometries through metallic electrodes, interacting substrates, strain, etc. So far, the only 2D material that presents physical properties that directly reflect the characteristics of the complex geometries is monolayer graphene. In the present work, we show that silicene nanostructured in complex fashion also displays self-similar characteristics in physical properties. In particular, we find self-similar patterns in the conductance, spin polarization and thermoelectricity of Cantor-like silicene structures. These complex structures are generated by modulating electrostatically the silicene local bandgap in Cantor-like fashion along the structure. The charge carriers are described quantum relativistically by means of a Dirac-like Hamiltonian. The transfer matrix method, the Landauer–Büttiker formalism and the Cutler–Mott formula are used to obtain the transmission, transport and thermoelectric properties. We numerically derive scaling rules that connect appropriately the self-similar conductance, spin polarization and Seebeck coefficient patterns. The scaling rules are related to the structural parameters that define the Cantor-like structure such as the generation and length of the system as well as the height of the potential barriers. As far as we know this is the first time that a 2D material beyond monolayer graphene shows self-similar quantum transport as well as that transport related properties like spin polarization and thermoelectricity manifest self-similarity.

Quenching of Spin Polarization Switching in Organic Multiferroic Tunnel Junctions by Ferroelectric “Ailing-Channel” in Organic Barrier

2018 ◽  
Vol 10 (36) ◽  
pp. 30614-30622 ◽  
Author(s):  
Shiheng Liang ◽  
Zhongwei Yu ◽  
Xavier Devaux ◽  
Anthony Ferri ◽  
Weichuan Huang ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Tunnel Junctions ◽  
Polarization Switching

Mechanism of ultrafast spin-polarization switching in nanostructures

2019 ◽  
Vol 99 (11) ◽  
Author(s):  
V. N. Mantsevich ◽  
I. V. Rozhansky ◽  
N. S. Maslova ◽  
P. I. Arseyev ◽  
N. S. Averkiev ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Polarization Switching

A Kinetic Study on the Spin Polarization Switching of Benzil in the Presence of Triethylamine

2001 ◽  
Vol 105 (15) ◽  
pp. 3741-3744 ◽  
Author(s):  
Tetsuo Okutsu ◽  
Masaki Ooyama ◽  
Katsuhiko Tani ◽  
Hiroshi Hiratsuka ◽  
Akio Kawai ◽  
...  
Keyword(s):  
Kinetic Study ◽  
Spin Polarization ◽  
Polarization Switching
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