Computing with spin-transfer-torque devices: Prospects and perspectives

Kaushik Roy, Mrigank Sharad, Deliang Fan, Karthik Yogendra

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations


In this paper we discuss the potential of emerging spin-torque devices for computing applications. Recent proposals for spin-based computing schemes may be differentiated as all-spin? vs. hybrid, programmable vs. fixed, and, Boolean vs. non-Boolean. All-spin logic-styles may offer high area-density due to small form-factor of nano-magnetic devices. However, circuit and system-level design techniques need to be explored that leaverage the specific spin-device characterisitcs to achieve energy-efficiency, performance and reliability comparable to those of CMOS. The non-volatility of nano-magnets can be exploited in the design of energy and area-efficient programmable logic. In such logic-styles, spin-devices may play the dual-role of computing as well as memory-elements that provide field-programmability. Spin-based threshold logic design is presented as an example. Emerging spintronic phenomena may lead to ultra-low-voltage, current-mode, spin-torque switches that can offer attractive computing capabilities, beyond digital switches. Such devices may be suitable for non-Boolean data-processing applications which involve analog processing leading to highly energy-efficient information processing hardware for applicatons like pattern-matching, neuromorphic-computing, image-processing and data-conversion. Towards the end, we discuss the possibility of applying emerging spin-torque switches in the design of energy-efficient global interconnects, for future chip multiprocessors.

Original languageEnglish (US)
Title of host publicationProceedings of IEEE Computer Society Annual Symposium on VLSI, ISVLSI
PublisherIEEE Computer Society
Number of pages5
ISBN (Electronic)9781479937639
StatePublished - Sep 18 2014
Externally publishedYes
Event2014 IEEE Computer Society Annual Symposium on VLSI, ISVLSI 2014 - Tampa, United States
Duration: Jul 9 2014Jul 11 2014


Other2014 IEEE Computer Society Annual Symposium on VLSI, ISVLSI 2014
Country/TerritoryUnited States


  • analog
  • interconnect
  • logic
  • low power
  • neural networks
  • non-Boolean
  • programmable logic array
  • spin
  • threshold logic

ASJC Scopus subject areas

  • Hardware and Architecture
  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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