Magnetic Cellular Automata (MCA) arrays under spatially varying field Kumari, A. Bhanja, S. |
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| Abstract Magnetic Cellular Automata (MCA) is a variant of Quantum-dot-cellular automata (QCA) where neighboring single-domain nano-magnets (also termed as magnetic cell) process and propagate information (logic 1 or logic 0) through mutual interaction. The attractive nature of this framework is that not only room temperature operations are feasible but also interaction between neighbors is central to information processing as opposed to creating interference. In this work, we explore spatially moving Landauer clocking scheme for MCA arrays (length of eight, sixteen and thirty-two cells) and show the role and effectiveness of the clock in propagating logic signal from input to output without magnetic frustration. Simulation performed in OOMMF. |
Tuesday, June 16, 2009
Magnetic Cellular Automata (MCA) arrays under spatially varying field
Magnetic Cellular Automata wires
Magnetic Cellular Automata wires
Pulecio, J.F. Bhanja, S.
Dept. of Electr. Eng., Univ. of South Florida, Tampa, FL, USA
This paper appears in: Nanotechnology Materials and Devices Conference, 2009. NMDC '09. IEEE
Publication Date: 2-5 June 2009
On page(s): 73 - 75
Location: Traverse City, MI
ISBN: 978-1-4244-4695-7
Digital Object Identifier: 10.1109/NMDC.2009.5167576
Current Version Published: 2009-07-21
Abstract
Magnetic Cellular Automata (MCA) is a novel take on an alternative technological actualization of Boolean logic machines. Not only has it been able to prototypically demonstrate successful operation of logical gates at room temperature; all key components necessary to implement any Boolean function has been realized. We present work further reducing the size of the single domain nano-magnet, approximately 100 times 50 times 30 nm, and physically implement two types of MCA wire architectures ferromagnetic and anti-ferromagnetic. We report the first physical implementation of shape engineered ferromagnetic wires and compare both wires under saturating magnetic fields in the Z direction. We have concluded experimentally, that for conventional data propagation between logical networks, ferromagnetic wires provide extremely stable operation. The high order of coupling we found under saturating magnetic fields demonstrates the flexible clocking nature of ferromagnetic wires and inches the technology closer to implementing complex circuitry.
Pulecio, J.F. Bhanja, S.
Dept. of Electr. Eng., Univ. of South Florida, Tampa, FL, USA
This paper appears in: Nanotechnology Materials and Devices Conference, 2009. NMDC '09. IEEE
Publication Date: 2-5 June 2009
On page(s): 73 - 75
Location: Traverse City, MI
ISBN: 978-1-4244-4695-7
Digital Object Identifier: 10.1109/NMDC.2009.5167576
Current Version Published: 2009-07-21
Abstract
Magnetic Cellular Automata (MCA) is a novel take on an alternative technological actualization of Boolean logic machines. Not only has it been able to prototypically demonstrate successful operation of logical gates at room temperature; all key components necessary to implement any Boolean function has been realized. We present work further reducing the size of the single domain nano-magnet, approximately 100 times 50 times 30 nm, and physically implement two types of MCA wire architectures ferromagnetic and anti-ferromagnetic. We report the first physical implementation of shape engineered ferromagnetic wires and compare both wires under saturating magnetic fields in the Z direction. We have concluded experimentally, that for conventional data propagation between logical networks, ferromagnetic wires provide extremely stable operation. The high order of coupling we found under saturating magnetic fields demonstrates the flexible clocking nature of ferromagnetic wires and inches the technology closer to implementing complex circuitry.
Invited Paper in IEEE NMDC, 2009
Anita Kumari's work published in IEEE NMDC gets accepted as Invited Paper, 2009
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