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DTSTART:20070311T020000
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DTSTART:20071104T020000
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UID:433f781c-fb41-434e-b723-9e4321338a85.206058@calendar.missouristate.edu
CREATED:20200224T164419Z
LAST-MODIFIED:20200224T164419Z
LOCATION:Kemper Hall 206
SUMMARY:PAMS Seminar: Dr. Wouter Montfrooij
DESCRIPTION:Dr. Wouter Montfrooij\, associate professor\, University of Mi
 ssouri will present on:\n\n\n"Does Spontaneous Fragmentation of a Magneti
 c Lattice Lead to Heavy Fermion Behavior?"\n\n\nAbstract: We discuss how 
 macroscopically uniform systems housing magnetic ions\, the so-called Kon
 do lattices\, can spontaneously fragment into lattices populated with mag
 netic clusters upon cooling. We show evidence for this behavior in a chem
 ically substituted compound and demonstrate how these magnetic clusters d
 ominate the low temperature response of the system\, both in transport me
 asurements as well as to microscopic probes such as neutron scattering.\n
 \n\nWe argue that this spontaneous fragmentation should not be limited to
  chemically substituted systems but should be prevalent in stoichiometric
  systems as well\, especially in systems that are close to a quantum crit
 ical point. As such\, this fragmentation could well provide the explanati
 on behind the puzzling critical behavior observed in quantum critical sys
 tems.
X-ALT-DESC;FMTTYPE=text/html:&lt;html&gt;&lt;head&gt;&lt;title&gt;&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;p&gt;Dr
 . Wouter Montfrooij\, associate professor\, University of Missouri will p
 resent on:&lt;/p&gt;\n&lt;p&gt;"Does Spontaneous Fragmentation of a Magnetic Lattice 
 Lead to Heavy Fermion Behavior?"&lt;/p&gt;\n&lt;p&gt;Abstract:&amp;nbsp\;&lt;span&gt;We discuss
  how macroscopically uniform systems housing magnetic ions\, the so-calle
 d Kondo lattices\, can spontaneously fragment into lattices populated wit
 h magnetic clusters upon cooling. We show evidence for this behavior in a
  chemically substituted compound and demonstrate how these magnetic clust
 ers dominate the low temperature response of the system\, both in transpo
 rt measurements as well as to microscopic probes such as neutron scatteri
 ng.&lt;/span&gt;&lt;/p&gt;\n&lt;p&gt;&lt;span&gt;We argue that this spontaneous fragmentation sho
 uld not be limited to chemically substituted systems but should be preval
 ent in stoichiometric systems as well\, especially in systems that are cl
 ose to a quantum critical point. As such\, this fragmentation could well 
 provide the explanation behind the puzzling critical behavior observed in
  quantum critical systems.&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;
DTSTART;TZID=America/Chicago:20200227T160000
DTEND;TZID=America/Chicago:20200227T170000
SEQUENCE:0
URL:https://physics.missouristate.edu/seminars.htm
CATEGORIES:Public,Alumni,Current Students,Faculty,Future Students,Staff
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