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Computing with field-coupled nanomag...

Csaba, Gyorgy.

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Computing with field-coupled nanomagnets.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Computing with field-coupled nanomagnets./
Author:	Csaba, Gyorgy.
Description:	218 p.
Notes:	Director: Wolfgang Porod.
Contained By:	Dissertation Abstracts International64-01B.
Subject:	Engineering, Electronics and Electrical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3078949

Computing with field-coupled nanomagnets.
Csaba, Gyorgy.

Computing with field-coupled nanomagnets. - 218 p.

Director: Wolfgang Porod.

Thesis (Ph.D.)--University of Notre Dame, 2003.

The characteristics of the proposed devices are attractive, with modest (few hundred Megahertz) speed, high integration density (10<super>9</super> device per square cm<super>2</super>) and potentially very simple fabrication technology.Subjects--Topical Terms:

626636
Engineering, Electronics and Electrical.

Computing with field-coupled nanomagnets.
LDR:02944nam 2200313 a 45 001 935016
005 20110509
008 110509s2003 eng d
035 $a (UnM)AAI3078949
035 $a AAI3078949
040 $a UnM $c UnM
100 1 $a Csaba, Gyorgy. $3 1258710
245 1 0 $a Computing with field-coupled nanomagnets.
300 $a 218 p.
500 $a Director: Wolfgang Porod.
500 $a Source: Dissertation Abstracts International, Volume: 64-01, Section: B, page: 0333.
502 $a Thesis (Ph.D.)--University of Notre Dame, 2003.
520 $a The characteristics of the proposed devices are attractive, with modest (few hundred Megahertz) speed, high integration density (10<super>9</super> device per square cm<super>2</super>) and potentially very simple fabrication technology.
520 $a Field-coupled computing (also known as Quantum-dot Cellular Automata or QCA) is a novel architecture concept, where complex computational tasks are performed by simple, almost identical physical building blocks that are interconnected by electric or magnetic fields. There are several candidates, which might serve as building blocks of a field-coupled architecture: quantum-dots, single-electron transistors and Coulomb-coupled molecules have been proposed already and investigated, and this dissertation explores the media of magnetically-coupled micron and nanoscale ferromagnetic particles for field-coupled computing.
520 $a We will show that properly arranged, few-ten nanometer size ferromagnetic pillars can in principle perform Boolean logic operations of arbitrary complexity and their coupling is sufficiently strong to result in robust, room-temperature operation. Externally applied magnetic field pumping is used to make the magnetic ordering predictable. We will examine other possible material systems and device geometries, such as Co/Pt multilayers and planar few-domain structures. We will experimentally demonstrate the operation of simple magnetic field-coupled devices and will argue the feasibility of manufacturing complex device structures.
520 $a We developed circuit models in order to understand the possibilities and limitations of coupled nanomagnets as computing devices and to tailor micromagnetic simulation codes to our design purposes. Using these tools we will prove the local activity of interconnected nanomagnets.
520 $a The design of nanomagnetic logic devices requires detailed understanding of the underlying magnetic processes and precise analysis of magnetic force microscopy (MFM) images. As a ‘byproduct’ of this work we developed a computational method for the interpretation of MFM data.
590 $a School code: 0165.
650 4 $a Engineering, Electronics and Electrical. $3 626636
650 4 $a Physics, Electricity and Magnetism. $3 1019535
690 $a 0544
690 $a 0607
710 2 0 $a University of Notre Dame. $3 807615
773 0 $t Dissertation Abstracts International $g 64-01B.
790 $a 0165
790 1 0 $a Porod, Wolfgang, $e advisor
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3078949