BEGIN:VCALENDAR
VERSION:2.0
PRODID:www.dresden-science-calendar.de
METHOD:PUBLISH
CALSCALE:GREGORIAN
X-MICROSOFT-CALSCALE:GREGORIAN
X-WR-TIMEZONE:Europe/Berlin
BEGIN:VTIMEZONE
TZID:Europe/Berlin
X-LIC-LOCATION:Europe/Berlin
BEGIN:DAYLIGHT
TZNAME:CEST
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
DTSTART:19810329T030000
RRULE:FREQ=YEARLY;INTERVAL=1;BYMONTH=3;BYDAY=-1SU
END:DAYLIGHT
BEGIN:STANDARD
TZNAME:CET
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
DTSTART:19961027T030000
RRULE:FREQ=YEARLY;INTERVAL=1;BYMONTH=10;BYDAY=-1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:DSC-15684
DTSTART;TZID=Europe/Berlin:20190305T110000
SEQUENCE:1551744421
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20190305T120000
URL:https://www.dresden-science-calendar.de/calendar/en/detail/15684
LOCATION:IFW\, Helmholtzstraße 2001069 Dresden
SUMMARY:Gomonay: Antiferromagnetic spintronics: dynamics of nanoparticles a
 nd textures
CLASS:PUBLIC
DESCRIPTION:Speaker: Prof. Dr. Olena Gomonay\nInstitute of Speaker: Institu
 te für Physik\, Johannes Gutenberg Universität Mainz\nTopics:\nMateriali
 en\, Physik\n Location:\n  Name: IFW (B3E.26\, IFW Dresden)\n  Street: Hel
 mholtzstraße 20\n  City: 01069 Dresden\n  Phone: \n  Fax: \nDescription: 
 Antiferromagnetic spintronics is a new fast developing field which focuses
  on electrical and optical manipulation of the antiferromagnetic order par
 ameter. In the presence of spin current antiferromagents (AFs) show nontri
 vial dynamics which differs from the dynamics of ferromagnetic materials a
 nd provides qualitatively new features of AF-based devices. Here I make an
  overview of the current-induced dynamics of AFs in nanoparticles and text
 ures) emphasizing the differences between ferro- and antiferromagnetic cas
 es.   The main difference between ferro- and antiferromagnetic dynamics st
 eams from strong exchange coupling between AF sublattices which is obvious
 ly absent in ferromagnets. This coupling is responsible for the several or
 der of magnitude enhancement of AF frequencies\, absence of Walker breakdo
 wn and potentially faster domain wall motion\, and absence of the Magnus f
 orce as a motive force for AF skyrmion. Moreover\, due to exchange couplin
 g\, AF nanoparticles are natural spin torque oscillators with operating fr
 equencies in THz range and hence can be used to fill the “THz gap” in 
 modern electronics.   Complicated\, compared to ferromagnets\, magnetic st
 ructure of AFs also implies variety of the possible spin torques that can 
 induce AF dynamics. One of important example is given by the recently obse
 rved Néel spin-orbit torque which induces effective switching between the
  different AF states and has no counterpart in ferromagnetic materials.   
 These and other peculiarities of AF dynamics open a way for new functional
 ities and make AF prospective materials for spintronics applications.  .
DTSTAMP:20260424T142236Z
CREATED:20190219T000755Z
LAST-MODIFIED:20190305T000701Z
END:VEVENT
END:VCALENDAR