Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session T00: Poster Session III (1pm- 4pm CST)
1:00 PM,
Thursday, March 17, 2022
Room: McCormick Place Exhibit Hall F1
Abstract: T00.00078 : Electronic transport measurements of high impedance Heisenberg-Kitaev materials*
Presenter:
Patrick T Barfield
(California State University, Long Beach)
Authors:
Patrick T Barfield
(California State University, Long Beach)
Vikram Nagarajan
(University of California, Berkeley)
James G Analytis
(University of California, Berkeley)
Claudia Ojeda-Aristizabal
(California State University, Long Beach)
In our previous experiments on the Heisenberg-Kitaev material Sodium Iridate (Na2IrO3) [1] the highly insulating character of this material precluded electronic transport measurements at low temperatures. Here, we show preliminary results on α-Ruthenium Trichloride (α-RuCl3), also a highly insulating Heisenberg-Kitaev system, using a custom-made probe that utilizes triaxial lines, capable of guarded electrical measurements. This technique allows to probe α-RuCl3 at temperatures below its magnetic ordering transition, exploring ground states predicted in the frame of the Heisenberg-Kitaev model. Electronic devices were made by mechanically exfoliating bulk crystals of α-RuCl3 and standard nanofabrication techniques.
[1] Josue Rodriguez, Gilbert Lopez, Francisco Ramirez, Nicholas P. Breznay, Alessandra Lanzara, James G. Analytis and Claudia Ojeda-Aristizabal “Competition between magnetic order and charge localization in Na2IrO3 thin crystal devices” Phys. Rev. B 101, 235415 (2020).
*Electronic transport measurements were supported by the US Department of Energy, Office of Science,Office of Basic Energy Sciences under award number DE-SC0018154 V.N. was supported by the NSF GRFP, Grant No. DGE 1752814 Crystal growth was supported by the Department of Energy EarlyCareer Program, Office of Basic Energy Sciences, MaterialsSciences and Engineering Division, under Contract No.DE-AC02-05CH11231
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