Design of a Giant Magnetoresistance Device with High Spin Filter Efficiency

2021 ◽  
Author(s):  
Fengxian Gao ◽  
Lu Liu ◽  
Ke Xu ◽  
Songtao Zhao
Keyword(s):  
High Spin ◽  
Giant Magnetoresistance ◽  
Spin Filter ◽  
Filter Efficiency

High spin-filter efficiency and Seebeck effect through spin-crossover iron–benzene complex

2016 ◽  
Vol 144 (15) ◽  
pp. 154304 ◽  
Author(s):  
Qiang Yan ◽  
Liping Zhou ◽  
Jue-Fei Cheng ◽  
Zhongqian Wen ◽  
Qin Han ◽  
...  
Keyword(s):  
High Spin ◽  
Spin Crossover ◽  
Seebeck Effect ◽  
Spin Filter ◽  
Filter Efficiency

scholarly journals Ultrahigh Spin Filter Efficiency, Giant Magnetoresistance and Large Spin Seebeck Coefficient in Monolayer and Bilayer Co-/Fe-/Cu-Phthalocyanine Molecular Devices

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2713
Author(s):  
Jianhua Liu ◽  
Kun Luo ◽  
Hudong Chang ◽  
Bing Sun ◽  
Zhenhua Wu
Keyword(s):  
High Performance ◽  
Density Functional ◽  
Giant Magnetoresistance ◽  
Spin Current ◽  
Molecular Devices ◽  
Pure Spin ◽  
Spin Filter ◽  
Zero Bias ◽  
Spin Configuration ◽  
Filter Efficiency

The spin related electrical and thermoelectric properties of monolayer and bilayer MPc (M = Co, Fe, Cu) molecular devices in a parallel spin configuration (PC) and an anti-parallel spin configuration (APC) between the V-shaped zigzag-edged graphene nanoribbon electrodes and the center bilayer MPc molecules are investigated by combining the density functional theory and non-equilibrium Green’s function approaches. The results show that there is an ultrahigh spin filter efficiency exceeding 99.99995% and an ultra-large total conductance of 0.49996G0 for FePc-CoPc molecular devices in PC and a nearly pure charge current at high temperature in an APC and a giant MR ratio exceeding 9.87 × 106% at a zero bias. In addition, there are pure spin currents for CuPc and FePc molecular devices in PC, and an almost pure spin current for FePc molecular devices in an APC at some temperature. Meanwhile, there is a high SFE of about 99.99585% in a PC and a reserved SFE of about −19.533% in an APC and a maximum MR ratio of about 3.69 × 108% for the FePc molecular device. Our results predict that the monolayer and bilayer MPc (M = Co, Fe, Cu) molecular devices possess large advantages in designing high-performance electrical and spintronic molecular devices.

Sign-changeable spin-filter efficiency and giant magnetoresistance in seamless graphene nanoribbon junctions

2011 ◽  
Vol 50 (10) ◽  
pp. 2886-2890 ◽  
Author(s):  
Chengyong Xu ◽  
Linze Li ◽  
Hong Li ◽  
Rui Qin ◽  
Jiaxin Zheng ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Graphene Nanoribbon ◽  
Spin Filter ◽  
Filter Efficiency

High spin-filter efficiency in a Co ferrite fabricated by a thermal oxidation

2010 ◽  
Vol 96 (7) ◽  
pp. 072512 ◽  
Author(s):  
Y. K. Takahashi ◽  
S. Kasai ◽  
T. Furubayashi ◽  
S. Mitani ◽  
K. Inomata ◽  
...  
Keyword(s):  
Thermal Oxidation ◽  
High Spin ◽  
Spin Filter ◽  
Filter Efficiency

The spin-filter capability and giant magnetoresistance effect in vanadium–naphthalene sandwich cluster

2013 ◽  
Vol 14 (11) ◽  
pp. 2916-2924 ◽  
Author(s):  
Zhi Yang ◽  
Baolong Zhang ◽  
Xuguang Liu ◽  
Yongzhen Yang ◽  
Xiuyan Li ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Filter ◽  
Magnetoresistance Effect ◽  
Giant Magnetoresistance Effect
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