Reconfigurable Boolean Logic using Magnetic Single-Electron Transistors

TL;DR

This paper introduces a magnetic single-electron transistor (MSET) that can be reprogrammed to perform various low-power logic functions by reorienting its magnetic layer, enabling flexible and energy-efficient digital logic operations.

Contribution

The paper presents a novel hybrid magnetic single-electron transistor capable of reprogramming logic functions through magnetic orientation control, advancing low-power reconfigurable logic device technology.

Findings

Reprogrammable Boolean gates demonstrated at the single device level

Device function changes with magnetic orientation of the GaMnAs layer

Proposed binary gates using two MSETs in a pull-down network

Abstract

We propose a novel hybrid single-electron device for reprogrammable low-power logic operations, the magnetic single-electron transistor (MSET). The device consists of an aluminium single-electron transistors with a GaMnAs magnetic back-gate. Changing between different logic gate functions is realized by reorienting the magnetic moments of the magnetic layer which induce a voltage shift on the Coulomb blockade oscillations of the MSET. We show that we can arbitrarily reprogram the function of the device from an n-type SET for in-plane magnetization of the GaMnAs layer to p-type SET for out-of-plane magnetization orientation. Moreover, we demonstrate a set of reprogrammable Boolean gates and its logical complement at the single device level. Finally, we propose two sets of reconfigurable binary gates using combinations of two MSETs in a pull-down network.