Dipole coupled magnetic quantum-dot cellular automata-based efficient approximate nanomagnetic subtractor and adder design approach

Sivasubramani, Santhosh and Mattela, Venkat and Acharyya, Amit and et al, . (2020) Dipole coupled magnetic quantum-dot cellular automata-based efficient approximate nanomagnetic subtractor and adder design approach. Nanotechnology, 31 (2). ISSN 0957-4484

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Abstract

In this paper, we propose a dipole coupled magnetic quantum-dot cellular automata-based approximate nanomagnetic (APN) architectural design approach for subtractor and adder. In addition, we also introduce an APN architecture which offers runtime reconfigurability using a single design layout comprising only four nanomagnets. Subsequently, we propose the APN add/sub architecture by exploiting shape anisotropy and ferromagnetically coupled fixed input majority gate. The proposed APN architecture designs have been implemented using a micromagnetic simulation tool and performance has been compared with the state-of-the-art approach resulting in a ∼50%-80% reduction in the number of nanomagnets and clock cycles without degradation in the accuracy leading to area and energy efficiency.

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IITH Creators:

IITH Creators	ORCiD
Acharyya, Amit	http://orcid.org/0000-0002-5636-0676

Item Type:

Article

Uncontrolled Keywords:

approximate nanomagnetic logic; in-plane magnetization; nanomagnetic approximate adder; nanomagnetic approximate subtractor; nanomagnetic computing; nanomagnetic logic

Subjects:

Electrical Engineering

Divisions:

Department of Electrical Engineering

Depositing User:

Team Library

Date Deposited:

21 Oct 2019 10:58

Last Modified:

31 Oct 2022 05:30

URI:

http://raiithold.iith.ac.in/id/eprint/6702