spin tunneling
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scholarly journals Chemical Structure and Magnetism of FeOx/Fe2O3 Interface Studied by X-ray Absorption Spectroscopy

2020 ◽  
Vol 6 (3) ◽  
pp. 33
Author(s):  
Ahmed Yousef Mohamed ◽  
Won Goo Park ◽  
Deok-Yong Cho
Keyword(s):  
Absorption Spectroscopy ◽  
Chemical Structure ◽  
Magnetic Circular Dichroism ◽  
Physical Barrier ◽  
Sample Plane ◽  
X Ray ◽  
Spin Tunneling ◽  
Weak Ferromagnet ◽  
Magnetic States ◽  
X Ray Absorption

The chemical and magnetic states of Fe/Fe2O3 thin films prepared by e-beam evaporation were investigated by using element-specific techniques, X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD). It was clearly shown that the Fe layers are oxidized to form an antiferromagnetic (AFM) FeOx<1, while the bottom oxide remained a weak ferromagnet (wFM) (α+γ)-type Fe2O3. Dependences of the peak intensities and lineshapes on the Fe thickness and measurement geometry further demonstrate that FeOx<1 layers reside mostly at the interface realizing an FM (Fe)/AFM (FeOx)/wFM (Fe2O3), whilst the spin directions lie in the sample plane for all the samples. The self-stabilized intermediate oxide can act as a physical barrier for spins to be injected into the wFM oxide, implying a substantial influence on tailoring the spin tunneling efficiency for spintronics application.

scholarly journals Voltage-Controlled Magnonic Spin Tunneling Junction

2020 ◽  
Vol 89 (1) ◽  
pp. 013601 ◽  
Author(s):  
Kohei Ohgane ◽  
Yuta Yahagi ◽  
Daisuke Miura ◽  
Akimasa Sakuma
Keyword(s):  
Tunneling Junction ◽  
Spin Tunneling

Nearly ideal spin tunneling efficiency in Fe/Mg/MgO/SiOx/n+ -Si(001) junctions

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Ryosho Nakane ◽  
Mitsuki Ichihara ◽  
Shoichi Sato ◽  
Masaaki Tanaka
Keyword(s):  
Spin Tunneling

scholarly journals Tunable Spin Seebeck Diode with Magnonic Spin Tunneling Junction

2018 ◽  
Vol 87 (12) ◽  
pp. 125001 ◽  
Author(s):  
Daisuke Miura ◽  
Akimasa Sakuma
Keyword(s):  
Tunneling Junction ◽  
Spin Tunneling

Nearly ideal spin tunneling efficiency by lowering the trap density at an amorphous-MgO / n+-Si(001) interface with a SiO x insertion layer

2018 ◽  
Author(s):  
M. Ichihara ◽  
S. Sato ◽  
M. Tanaka ◽  
R. Nakane
Keyword(s):  
Trap Density ◽  
Spin Tunneling

Spin tunneling into Si measured by three-terminal Hanle signals in vertical and lateral Si devices with Fe/Mg/MgO/Si tunnel junctions

2018 ◽  
Author(s):  
S. Sato ◽  
R. Nakane ◽  
T. Hada ◽  
M. Ichihara ◽  
M. Tanaka
Keyword(s):  
Tunnel Junctions ◽  
Spin Tunneling

Surface spin tunneling and heat dissipation in magnetic nanoparticles

2018 ◽  
Vol 5 (3) ◽  
pp. 036101 ◽  
Author(s):  
Jasnamol P Palakkal ◽  
Chinna Obula Reddy ◽  
Ajeesh P Paulose ◽  
Cheriyedath Raj Sankar
Keyword(s):  
Magnetic Nanoparticles ◽  
Heat Dissipation ◽  
Spin Tunneling ◽  
Surface Spin

scholarly journals Long-range dynamical magnetic order and spin tunneling in the cooperative paramagnetic states of the pyrochlore analogous spinel antiferromagnets CdYb2X4 ( X=S or Se)

2017 ◽  
Vol 96 (13) ◽  
Author(s):  
P. Dalmas de Réotier ◽  
C. Marin ◽  
A. Yaouanc ◽  
C. Ritter ◽  
A. Maisuradze ◽  
...  
Keyword(s):  
Long Range ◽  
Magnetic Order ◽  
Spin Tunneling

Spin-tunneling magnetoresistive elements based on multilayered nanostructures

2017 ◽  
Vol 62 (8) ◽  
pp. 1281-1283 ◽  
Author(s):  
V. V. Amelichev ◽  
P. A. Belyakov ◽  
D. V. Vasil’ev ◽  
D. A. Zhukov ◽  
Yu. V. Kazakov ◽  
...  
Keyword(s):  
Spin Tunneling ◽  
Multilayered Nanostructures
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