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Spatiotemporal synchronization of drift waves in a magnetron sputtering plasma (Articolo in rivista)

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Spatiotemporal synchronization of drift waves in a magnetron sputtering plasma (Articolo in rivista) (literal)

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Martines E.; Zuin M.; Cavazzana R.; Adamek J.; Antoni V.; Serianni G.; Spolaore M.; Vianello N. (2014)
Spatiotemporal synchronization of drift waves in a magnetron sputtering plasma
in Physics of plasmas; AMER INST PHYSICS, CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 (Stati Uniti d'America)
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Martines E.; Zuin M.; Cavazzana R.; Adamek J.; Antoni V.; Serianni G.; Spolaore M.; Vianello N. (literal)

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Article Number: 102309 ; Physics of plasmas (Online) e-ISSN: 1089-7674; http://www.scopus.com/inward/record.url?eid=2-s2.0-84908251968&partnerID=q2rCbXpz ; http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=11&SID=X1EIicq1iOnrzY1m7hG&page=6&doc=53 (literal)

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http://scitation.aip.org/content/aip/journal/pop/21/10/10.1063/1.4898693 (literal)

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1-3,5-8 : Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Corso Stati Uniti 4 - 35127 Padova (Italy); / 4 : Institute of Plasma Physics, AS CR, Prague, Czech Republic. (literal)

Titolo

Spatiotemporal synchronization of drift waves in a magnetron sputtering plasma (literal)

Abstract

A feedforward scheme is applied for drift waves control in a magnetized magnetron sputtering plasma. A system of driven electrodes collecting electron current in a limited region of the explored plasma is used to interact with unstable drift waves. Drift waves actually appear as electrostatic modes characterized by discrete wavelengths of the order of few centimeters and frequencies of about 100 kHz. The effect of external quasi-periodic, both in time and space, travelling perturbations is studied. Particular emphasis is given to the role played by the phase relation between the natural and the imposed fluctuations. It is observed that it is possible by means of localized electrodes, collecting currents which are negligible with respect to those flowing in the plasma, to transfer energy to one single mode and to reduce that associated to the others. Due to the weakness of the external action, only partial control has been achieved. (literal)

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