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DTSTAMP:20260424T143102Z
UID:1713949200@ist.ac.at
DTSTART:20240424T110000
DTEND:20240424T120000
DESCRIPTION:Speaker: Young-June Kim\nhosted by Kimberly Modic\nAbstract: Sp
 in-orbit coupling (SOC) is important in understanding the physics of numer
 ous magnetic materials. In particular\, it was found that effective spin-h
 alf moments arising from the spin-orbit entangled state are responsible fo
 r many exotic quantum magnetism found in iridates and ruthenates. However\
 , recent studies have cast doubt upon this simple atomic picture\, illumin
 ating the significance of lattice degrees of freedom in these materials. D
 ouble perovskite materials with a 5d1 electronic configuration offer an id
 eal platform for exploring such an interplay between the lattice and the s
 pin-orbit entangled state. In this talk\, I will give a brief overview of 
 double-perovskite materials and present our latest findings from resonant 
 inelastic X-ray scattering (RIXS) experiments. Our results reveal the pres
 ence of the dynamic Jahn-Teller effect in the A2MgReO6 (A = Ca\, Sr\, Ba) 
 family of 5d1 double perovskites\, indicating that the vibronic coupling m
 ust be included in the complete description of the ground state of magneti
 c materials with strong spin-orbit coupling. 
LOCATION:Office Bldg West / Ground floor / Heinzel Seminar Room\, ISTA
ORGANIZER:
SUMMARY:Young-June Kim: Double-perovskite materials as a platform for study
 ing spin-orbit-lattice entangled state
URL:https://talks-calendar.ista.ac.at/events/4878
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