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SUMMARY:GDCh Kolloquium - Professor Dr. Olivier Mentré
DTSTART;TZID=Europe/Berlin:20230606T170000
DTEND;TZID=Europe/Berlin:20230606T180000
DTSTAMP:20260524T181952Z
UID:4ba482954e174e078b8d1bca3167a0ea@www.chemie.uni-bonn.de
CATEGORIES:Lu-events,ac-events,Veranstaltungen,GDCh-events,fg-events
CREATED:20230525T082131Z
DESCRIPTION:What layered iron compounds can offer\, and more ...\n\nI will
  introduce recently-found 2D inorganic compounds based on layers of Fe2+ (
 S=2) ions\, in order to highlight how they form a unique platform for new 
 paradigms on spin-dynamics and magneto-dielectric couplings. Here\, depend
 ing on the crystal structure\, the spin-degrees of freedoms and fine anion
 ic compositions are the key-ingredients to tune the exchanges\, crystal fi
 eld ... etc. Especially\, I will show in a specific 2D-Ising-ferromagnet (
 BaFe2(PO4)2) the occurrence of giant magneto-crystalline anisotropy. It re
 sults in the collective freezing of magnetic domains which mediates the pa
 ssage from a soft to a ‘super-hard’ magnet. This unique situation offe
 rs various unexpected peculiarities including the ability to imprint any u
 nreturnable magnetization to the sample within simple temperature/field cy
 cles.
LAST-MODIFIED:20250906T002848Z
URL:https://www.chemie.uni-bonn.de/de/gdch/gdch-events/gdch-kolloquium-pro
 fessor-dr-olivier-mentre
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X-LIC-LOCATION:Europe/Berlin
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DTSTART:20230326T030000
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TZOFFSETFROM:+0100
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