Bilayer avalanche spin-diode logic

Friedman, Joseph S.; Fadel, Eric; Wessels, Bruce W.; Querlioz, Damien; Sahakian, Alan V.

doi:10.1063/1.4935262

“…As a consequence, the spin is not longer a good quantum number. These facts lead to several interesting phenomena, which can be applicable in spintronics devices [13][14][15][16], e.g., as data storages [17] or quantum computers [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Superconducting monolayer deposited on substrate: Effects of the spin-orbit coupling induced by proximity effects

Ptok

¹

,

Rodriguez

²

,

Kapcia

³

2018

Phys. Rev. Materials

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The spin-orbit coupling can lead to exotic states of matter and unexpected behavior of the system properties. In this paper, we investigate the influence of spin-orbit coupling induced by proximity effects on a monolayer of superconductor (with s-wave or d-wave pairing) placed on an insulating bulk. We show that the critical temperatures Tc of the superconducting states can be tuned by the spin-orbit coupling both in the case of on-site and inter-site pairing. Moreover, we discuss a possibility of changing the location of the maximal Tc from the half-filling into the underdoped or overdoped regimes.

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“…anipulation of the spin-degree of freedom for spintronic computing requires the invention of unconventional logic families to harness the unique mechanisms of spintronic switching devices [1][2][3][4][5][6][7][8][9][10][11][12][13][14] . Cascading, one device directly driving another device, has been well known as a major challenge and fundamental requirement of a logic family since von Neumann's 15 1945 proposal for a stored-program electronic computer.…”

mentioning

confidence: 99%

Cascaded Spintronic Logic with Low-Dimensional Carbon

Friedman¹,

Girdhar²,

Gelfand³

et al. 2023

Physical Models for Quantum Wires, Nanotubes, and Nanoribbons

0

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Remarkable breakthroughs have established the functionality of graphene and carbon nanotube transistors as replacements to silicon in conventional computing structures, and numerous spintronic logic gates have been presented. However, an efficient cascaded logic structure that exploits electron spin has not yet been demonstrated. In this work, we introduce and analyse a cascaded spintronic computing system composed solely of low-dimensional carbon materials. We propose a spintronic switch based on the recent discovery of negative magnetoresistance in graphene nanoribbons, and demonstrate its feasibility through tight-binding calculations of the band structure. Covalently connected carbon nanotubes create magnetic fields through graphene nanoribbons, cascading logic gates through incoherent spintronic switching. The exceptional material properties of carbon materials permit Terahertz operation and two orders of magnitude decrease in power-delay product compared to cutting-edge microprocessors. We hope to inspire the fabrication of these cascaded logic circuits to stimulate a transformative generation of energy-efficient computing.

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“…Manipulation of the spin-degree of freedom for spintronic computing requires the invention of unconventional logic families to harness the unique mechanisms of spintronic switching devices 1 2 3 4 5 6 7 8 9 10 11 12 13 14 . Cascading, one device directly driving another device, has been well known as a major challenge and fundamental requirement of a logic family since von Neumann's 15 1945 proposal for a stored-program electronic computer.…”

mentioning

confidence: 99%

Cascaded spintronic logic with low-dimensional carbon

Friedman

¹

,

Girdhar

²

,

Gelfand

³

et al. 2017

Self Cite

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Remarkable breakthroughs have established the functionality of graphene and carbon nanotube transistors as replacements to silicon in conventional computing structures, and numerous spintronic logic gates have been presented. However, an efficient cascaded logic structure that exploits electron spin has not yet been demonstrated. In this work, we introduce and analyse a cascaded spintronic computing system composed solely of low-dimensional carbon materials. We propose a spintronic switch based on the recent discovery of negative magnetoresistance in graphene nanoribbons, and demonstrate its feasibility through tight-binding calculations of the band structure. Covalently connected carbon nanotubes create magnetic fields through graphene nanoribbons, cascading logic gates through incoherent spintronic switching. The exceptional material properties of carbon materials permit Terahertz operation and two orders of magnitude decrease in power-delay product compared to cutting-edge microprocessors. We hope to inspire the fabrication of these cascaded logic circuits to stimulate a transformative generation of energy-efficient computing.

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Bilayer avalanche spin-diode logic

Cited by 9 publications

References 25 publications

Superconducting monolayer deposited on substrate: Effects of the spin-orbit coupling induced by proximity effects

Superconducting monolayer deposited on substrate: Effects of the spin-orbit coupling induced by proximity effects

Cascaded Spintronic Logic with Low-Dimensional Carbon

Cascaded spintronic logic with low-dimensional carbon

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