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DTSTART:20220313T070000
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DTSTART:20221106T060000
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DTSTART;TZID=America/Toronto:20230201T110000
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URL:https://uwaterloo.ca/institute-for-quantum-computing/events/quantum-mat
 ters-seminar-series-alpha-rucl3-progress-report
LOCATION:QNC - Quantum Nano Centre 200 University Avenue West QNC 1201 Wate
 rloo ON N2L 3G1 Canada
SUMMARY:Quantum Matters Seminar Series: Alpha-RuCl3: a progress report
CLASS:PUBLIC
DESCRIPTION:YOUNG-JUNE KIM: ALPHA-RUCL3: A PROGRESS REPORT\n\nAbstract: A 
 bond-dependent anisotropic magnetic interaction called\nthe Kitaev interac
 tion can be found in honeycomb lattice materials\nwith strong spin-orbit c
 oupling\, which has made a profound impact on\nquantum magnetism research.
  In particular\, alpha-RuCl3 has been\nheralded as a realization of the Ki
 taev quantum spin liquid state\, an\nelusive new state of matter that harb
 ours Majorana fermions. In this\ntalk\, I will give a brief overview of th
 e current status of research\non alpha-RuCl3 and discuss recent experiment
 al developments and a few\nsurprising findings using ultra-high-quality sa
 mples grown in our\nlaboratory. Our samples have minimal stacking faults e
 ven at low\ntemperatures\, allowing us to determine the low-temperature cr
 ystal\nstructure unambiguously. We also found that the magnetic properties
 \nare surprisingly sensitive to the inter-layer configuration\, giving\nri
 se to various magnetic transition temperatures. We also compare\nlow-energ
 y spin-orbit excitations in various Kitaev materials using\nresonant inela
 stic x-ray scattering (RIXS). We found that non-local\nphysics is importan
 t for describing the spin-orbit excitations in\nthese materials\, in contr
 ast to the conventional belief that local\nJeff=1/2 physics is sufficient 
 in these compounds.
DTSTAMP:20260407T172514Z
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