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UID:DSC-16121
DTSTART;TZID=Europe/Berlin:20190611T130000
SEQUENCE:1561382444
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20190611T140000
URL:https://dresden-science-calendar.de/calendar/de/detail/16121
LOCATION:IFW\, Helmholtzstraße 2001069 Dresden
SUMMARY:Teresa: Functional nanostructures grown by Focused Electron/Ion Bea
 m Induced Deposition
CLASS:PUBLIC
DESCRIPTION:Speaker: Prof. José María De Teresa\nInstitute of Speaker: In
 stitute of Materials Science of Aragon\, CSIC-University of Zaragoza\, Spa
 in\nTopics:\n\n Location:\n  Name: IFW (B3E.26\, IIN)\n  Street: Helmholtz
 straße 20\n  City: 01069 Dresden\n  Phone: \n  Fax: \nDescription: In thi
 s talk I will summarize our recent work on the use of focused electron and
  ion beams in combination with gas and condensed precursors to grow functi
 onal nanostructures. Advantages of this set of direct nanomaterials growth
  techniques are the avoidance of resists\, the high resolution attainable\
 , the capability for growth of three-dimensional structures\, their use of
  non-flat substrates and the functionality of the deposited materials. Mor
 e specifically\, I will focus on three types of functionalities: metallic\
 , magnetic and superconducting ones. Metallic deposits grown by Focused Io
 n Beam Induced Deposition (FIBID) are of interest in circuit editing and f
 or making electrical contacts on nano-objects\, with Pt-based or Wbased pr
 ecursors in the gas phase being used in these applications. We have recent
 ly succeeded in the growth of metallic deposits by Ga+-FIBID using a conde
 nsed layer of W(CO)6 formed on the substrate under cryogenic conditions (C
 ryo-FIBID)\, with obvious advantages due to the low ion irradiation dose r
 equired (~ 50 µC/cm2). Magnetic deposits grown by Focused Electron Beam I
 nduced Deposition (FEBID) are of interest to directly grow magnetic tips o
 n cantilevers\, with applications in magnetic sensing. We have used Co2(CO
 )8 and Fe2(CO)9 gas precursors to grow magnetic nanospheres and nanowires 
 on various types of cantilevers\, with application in Magnetic Force Micro
 scopy and Ferromagnetic Resonance Force Microscopy. Superconducting deposi
 ts grown by Ga+-FIBID using W(CO)6 gas precursor have been found to be of 
 interest to investigate the physics of vortices and to make superconductin
 g contacts to nano-objects. We have recently succeeded in the growth of su
 perconducting nanowires\, nanotubes and nanohelixes by He+-FIBID using W(C
 O)6 gas precursor. The capability of FIBID for the growth of three-dimensi
 onal superconducting nanostructures opens new perspectives in the field\, 
 which will be discussed.
DTSTAMP:20260625T133544Z
CREATED:20190528T220959Z
LAST-MODIFIED:20190624T132044Z
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