Resonant and nonresonant spin filtering in bismuthene-silicon cowrie shell-like nanostructures

2021 ◽  
Vol 104 (15) ◽  
Author(s):  
Alireza Saffarzadeh ◽  
George Kirczenow
Keyword(s):  
Spin Filtering

scholarly journals Vacancy tuned thermoelectric properties and high spin filtering performance in graphene/silicene heterostructures

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zainab Gholami ◽  
Farhad Khoeini
Keyword(s):  
Electric Fields ◽  
High Spin ◽  
High Efficiency ◽  
Practical Applications ◽  
External Electric Fields ◽  
Ferromagnetic Exchange ◽  
High Spin Polarization ◽  
Filtering Effect ◽  
Spin Switching ◽  
Spin Filtering

AbstractThe main contribution of this paper is to study the spin caloritronic effects in defected graphene/silicene nanoribbon (GSNR) junctions. Each step-like GSNR is subjected to the ferromagnetic exchange and local external electric fields, and their responses are determined using the nonequilibrium Green’s function (NEGF) approach. To further study the thermoelectric (TE) properties of the GSNRs, three defect arrangements of divacancies (DVs) are also considered for a larger system, and their responses are re-evaluated. The results demonstrate that the defected GSNRs with the DVs can provide an almost perfect thermal spin filtering effect (SFE), and spin switching. A negative differential thermoelectric resistance (NDTR) effect and high spin polarization efficiency (SPE) larger than 99.99% are obtained. The system with the DV defects can show a large spin-dependent Seebeck coefficient, equal to Ss ⁓ 1.2 mV/K, which is relatively large and acceptable. Appropriate thermal and electronic properties of the GSNRs can also be obtained by tuning up the DV orientation in the device region. Accordingly, the step-like GSNRs can be employed to produce high efficiency spin caloritronic devices with various features in practical applications.

Highly‐Efficient Spin‐Filtering Transport in Chiral Hybrid Copper Halides

2021 ◽  
Author(s):  
Ying Lu ◽  
Qian Wang ◽  
Ruilin He ◽  
Foxin Zhou ◽  
Xia Yang ◽  
...  
Keyword(s):  
Highly Efficient ◽  
Copper Halides ◽  
Spin Filtering

scholarly journals Spin Filtering in a Hybrid Ferromagnetic-Semiconductor Microstructure

2004 ◽  
Vol 93 (24) ◽  
Author(s):  
J. Wróbel ◽  
T. Dietl ◽  
A. Łusakowski ◽  
G. Grabecki ◽  
K. Fronc ◽  
...  
Keyword(s):  
Ferromagnetic Semiconductor ◽  
Spin Filtering

Spin-filtering transport and switching effect of MnCu single-molecule magnet

2010 ◽  
Vol 96 (19) ◽  
pp. 192112 ◽  
Author(s):  
H. Hao ◽  
X. H. Zheng ◽  
Z. X. Dai ◽  
Z. Zeng
Keyword(s):  
Single Molecule ◽  
Switching Effect ◽  
Single Molecule Magnet ◽  
Spin Filtering
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