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PRODID:www-igk2495-fau-de//Events//DE
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SUMMARY:Block Lecture: Miyagawa
UID:7781-4f57-e41c-9539@www.igk2495.fau.de
DESCRIPTION:Bridging length scales in computational modeling
DTSTART:20250714T000000Z
DTEND:20250718T000000Z
DTSTAMP:20260721T155059Z
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SUMMARY:Invited Lecture: Prof. Julian Walker
UID:ad1f-0d67-cbe6-9536@www.igk2495.fau.de
DESCRIPTION:Ionic plastic crystals and their ceramic composites as ene
 rgy conversion systems Energy conversion using piezoelectrics\, pyroel
 ectrics\, ferroelectrics and related phenomena are a key part of moder
 n technology\, allowing the conversion between mechanical\, thermal an
 d electrical energies. The field is dominated by metal oxide or metal 
 nitride ceramics due to their robust functional properties\, but inter
 est in a more diverse combination of properties combined with the desi
 re for lower cost\, lower energy consumption and greater sustainabilit
 y is driving exploration of novel material systems. Ionic plastic crys
 tals are crystalline solids consisting of charged molecular components
  that occupy the sites in the crystal lattice. The materials exhibit a
  high temperature phase where the molecules maintain fixed positions i
 n a crystal lattice but gain orientational and rotational freedom\, gi
 ving rise to soft mechanical properties and plastic deformation among 
 other things. These materials can be non-centrosymmetric and thus may 
 exhibit piezo\, pyro and ferroelectric properties combined with the un
 ique ability to be plastically deformed into various shapes and crysta
 llized from aqueous solutions at low temperatures. Thie low temperatur
 e synthesis and plastic deformability provides some interesting avenue
 s for device fabrication and composite formation. In this lecture we w
 ill look at the fundamentals of ferroelectricity in these materials an
 d the key properties of the orientationally disordered mesophases. We 
 will discuss\, using key examples\, how the molecular composition infl
 uences the mechanistic contributions to polarization and ferroelectric
  switching\, as well as evaluate various hypothesis as to how these ma
 terials may be engineered to enhance polarization and electromechanica
 l responses to create high performance materials for future energy con
 version devices. As part of the lecture\, we will recap the fundamenta
 ls of ferroelectric and piezoelectric properties\, p
DTSTART:20250722T160000Z
DTEND:20250722T173000Z
LOCATION:H14 + Online
DTSTAMP:20260721T155059Z
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