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VERSION:2.0
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METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20240329T054349Z
UID:https://www.mpsd.mpg.de/events/9492/17181
DTSTART:20170418T130000Z
DTEND:20170418T140000Z
CLASS:PUBLIC
CREATED:20170328T143600Z
DESCRIPTION:The perovskite iridate Srn+1IrnO3n+1 real
izes an interesting analogue to the cuprate high Tc superconductor. When e
lectron-doped\, the single-layer Sr2IrO4 is shown to
manifest a pseudogap phase and possibly d-wave superconductivity. Using s
econd harmonic generation rotational anisotropy\, we show that near the an
tiferromagnetic transition there exists a magnetic multipolar order that b
reaks inversion symmetry in hole-doped Sr2IrO4. One
candidate for this order is the loop current order that is predicted to ex
ist in the pseudogap region of cuprate. In bilayer Sr3Ir2<
/sub>O7\, electron-doping has been found to induce an insulator
-to-metal transition in addition to a structural phase transition at low t
emperature. There has been no prior experimental evidence of electronic in
stabilities in the bilayer system. Using time-resolved optical reflectivit
y\, we detect a charge-density-wave-like instability in metallic samples o
f electron-doped Sr3Ir2O7. The absence of
signatures of a new spatial periodicity from diffraction\, scanning tunne
lling and photoemission based probes suggests an unconventional and possib
ly short-ranged nature of this density wave order.\nSpeaker: Hao Chu
LAST-MODIFIED:20170328T143600Z
LOCATION:CFEL (Bldg. 99)\, Room: Seminar Room IV\, O1.111
ORGANIZER:Andrea Cavalleri
SUMMARY:Nonlinear harmonic generation and ultrafast studies of perovskite i
ridates: Hao Chu - Nonlinear harmonic generation and ultrafast studies of
perovskite iridates
URL:https://www.mpsd.mpg.de/events/9492/17181
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