Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session D56: Spin Dependent Transport I
3:00 PM–6:00 PM,
Monday, March 6, 2023
Room: Room 304
Sponsoring
Unit:
GMAG
Chair: Madalynn Marshall,, Oak Ridge National Lab
Abstract: D56.00014 : Thermal Transport in Weakly Coupled Spin-1/2 Heisenberg-Ladders
5:36 PM–5:48 PM
Presenter:
Anja S Wenger
(Julius-Maximilians University of Wuerzbu)
Authors:
Anja S Wenger
(Julius-Maximilians University of Wuerzbu)
Ewelina M Hankiewicz
(Julius-Maximilians University of Wuerzburg)
Starting point is the spin-1/2 Heisenberg chain and its fermionic and bosonic description by conformal field theory. From coupling two spin chains and applying the (rescaled) bosonisation technique, a free theory for spin-ladders and its spectrum is obtained. Special interest lies on the conformal anomaly and the Tomonaga-Luttinger Liquid parameters. Introducing temperature to the theory gives access to the thermal transport properties.
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