scholarly journals Effects of resonant interface states on tunneling magnetoresistance

2002 ◽  
Vol 65 (6) ◽  
Author(s):  
O. Wunnicke ◽  
N. Papanikolaou ◽  
R. Zeller ◽  
P. H. Dederichs ◽  
V. Drchal ◽  
...  
Keyword(s):  
Interface States ◽  
Tunneling Magnetoresistance

scholarly journals THE IMPORTANCE OF Fe SURFACE STATES FOR MAGNETIC TUNNEL JUNCTION BASED SPINTRONIC DEVICES

2008 ◽  
Vol 22 (26) ◽  
pp. 2529-2551 ◽  
Author(s):  
ATHANASIOS N. CHANTIS ◽  
KIRILL D. BELASHCHENKO ◽  
EVGENY Y. TSYMBAL ◽  
INNA V. SUS
Keyword(s):  
Spin Polarization ◽  
Tunnel Junctions ◽  
Strong Dependence ◽  
Magnetic Tunnel Junctions ◽  
Interface States ◽  
Tunneling Magnetoresistance ◽  
Sign Reversal ◽  
Spintronic Devices ◽  
Spin Electronics ◽  
Minority Spin

In this article we give a review of our recent theoretical studies of the influence of Fe (001) surface (interface) states on spin-polarized electron transport across magnetic tunnel junctions with Fe electrodes. We show that minority-spin surface (interface) states are responsible for at least two effects which are important for spin electronics. First, they can produce a sizable tunneling anisotropic magnetoresistance in magnetic tunnel junctions with a single Fe electrode. The effect is driven by a Rashba shift of the resonant surface band when the magnetization changes direction. This can introduce a new class of spintronic devices, namely, tunneling magnetoresistance junctions with a single ferromagnetic electrode. Second, in Fe/GaAs (001) magnetic tunnel junctions minority-spin interface states produce a strong dependence of the tunneling current spin polarization on applied electrical bias. A dramatic sign reversal within a voltage range of just a few tenths of an eV is predicted. This explains the observed sign reversal of spin polarization in recent experiments of electrical spin injection in Fe/GaAs (001) and related reversal of tunneling magnetoresistance through vertical Fe/GaAs/Fe trilayers.

Elimination of interface states in the GaAs band-gap by cyanide treatment: XPS measurements under bias

2003 ◽  
Vol 529 (3) ◽  
pp. 329-337 ◽  
Author(s):  
Tomohiro Kubota ◽  
Ján Ivančo ◽  
Masao Takahashi ◽  
Kenji Yoneda ◽  
Yoshihiro Todokoro ◽  
...  
Keyword(s):  
Band Gap ◽  
Interface States

Topological interface states in translational metamaterials for sub-wavelength in-plane waves

2021 ◽  
Vol 197 ◽  
pp. 106308
Author(s):  
Yijie Liu ◽  
Liang Jin ◽  
Hongfa Wang ◽  
Dongying Liu ◽  
Yingjing Liang
Keyword(s):  
Plane Waves ◽  
Interface States ◽  
Sub Wavelength

scholarly journals Interface States Characterization of UTB SOI MOSFETs From the Subthreshold Current

2020 ◽  
pp. 1-6
Author(s):  
Matthias L. Vermeer ◽  
Raymond J. E. Hueting ◽  
Luca Pirro ◽  
Jan Hoentschel ◽  
Jurriaan Schmitz
Keyword(s):  
Interface States ◽  
Subthreshold Current

scholarly journals Large Rashba unidirectional magnetoresistance in the Fe/Ge(111) interface states

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
T. Guillet ◽  
A. Marty ◽  
C. Vergnaud ◽  
M. Jamet ◽  
C. Zucchetti ◽  
...  
Keyword(s):  
Interface States

High tunneling magnetoresistance induced by symmetry and quantum interference in magnetic molecular junctions

2021 ◽  
Author(s):  
Lin Huang ◽  
Yu-Jia Zeng ◽  
Dan Wu ◽  
Nan-Nan Luo ◽  
Ye-Xin Feng ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Green’S Function ◽  
Green's Function ◽  
Quantum Interference ◽  
Density Functional ◽  
Molecular Junctions ◽  
Tunneling Magnetoresistance ◽  
Functional Theory ◽  
Nonequilibrium Green's Function ◽  
Molecular Scale

Achieving high tunneling magnetoresistance (TMR) in molecular-scale junctions is attractive for their applications in spintronics. By using density-functional theory (DFT) in combination with the nonequilibrium Green's function (NEGF) method, we...

Tunneling magnetoresistance and spin-valley polarization in magnetic silicene superlattices

2021 ◽  
Vol 103 (15) ◽  
Author(s):  
J. G. Rojas-Briseño ◽  
M. A. Flores-Carranza ◽  
P. Villasana-Mercado ◽  
S. Molina-Valdovinos ◽  
I. Rodríguez-Vargas
Keyword(s):  
Tunneling Magnetoresistance ◽  
Valley Polarization

Interface states of dipole-like distributions in a quasi-periodic acoustic waveguide

2021 ◽  
Vol 181 ◽  
pp. 108174
Author(s):  
Ting Liu ◽  
Ya-Xian Fan ◽  
Jia-Yi Zhang ◽  
Yu Su ◽  
Zhi-Yong Tao
Keyword(s):  
Interface States ◽  
Acoustic Waveguide
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