Back to Search
Start Over
Broadband spin-filtered minimalistic magnetic tunnel junction.
- Source :
- AIP Advances; Apr2024, Vol. 14 Issue 4, p1-6, 6p
- Publication Year :
- 2024
-
Abstract
- The tri-layer magnetic tunnel junction (MTJ) has surfaced as a building block for engineering next-generation integrated circuits while combining the attributes of non-volatility and meager energy consumption. Nevertheless, the perceptible switching energy (≈ 20 – 50 fJ/bit) and sub-optimal tunnelmagnetoresistance (TMR) (≈ 200 % – 300 %) have acted as major hindrances, concealing its potential to supersede the capabilities of static and dynamic random access memories. In this work, we introduce a novel device that features a minimalistic non-uniform heterostructure/superlattice instead of the oxide layer in a conventional MTJ and analyze it in the premise of the self-consistent coupling of the Non-Equilibrium-Green's Function (NEGF) and the Landau-Liftshitz-Gilbert-Slonczewski (LLGS) equation. We ascertain that the coupling of the electrodes to the proposed heterostructure renders a highly spin-selective broadband transmittance, thereby enabling a towering TMR (%) of 3.7 × 10<superscript>4</superscript>% along with a significant reduction in the spin transfer torque (STT) switching energy (≈1.96 fJ). Furthermore, the sizable slonczewski term (I<subscript>s‖</subscript>) originating from the heterostructure facilitates a swift STT-switching within the scale of a few hundred picoseconds (≈400 ps). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21583226
- Volume :
- 14
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- AIP Advances
- Publication Type :
- Academic Journal
- Accession number :
- 177187164
- Full Text :
- https://doi.org/10.1063/9.0000706