Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session X08: Superconductivity: Odd-Frequency, Non-Centrosymmetric and Other Exotic States
8:00 AM–10:48 AM,
Friday, March 8, 2019
BCEC
Room: 150
Sponsoring
Unit:
DCMP
Chair: Stuart Brown, Univ of California - Los Angeles
Abstract: X08.00011 : Ir d-band derived superconductivity in the lanthanum-iridium system LaIr3 system*
10:00 AM–10:12 AM
Presenter:
Neel Haldolaarachchige
(Physical Sciences, Bergen Community College)
Authors:
Neel Haldolaarachchige
(Physical Sciences, Bergen Community College)
Leslie Schoop
(Princeton University)
Mojammel Alam Khan
(Physics, Louisiana State University)
Wenxuan Huang
(Department of Mat. Sci. and Eng., Massachusetts Institute of Technology,)
Huiwen Ji
(Princeton University)
Kalani Hettiarachchilage
(Physics, The Collage of New Jersey)
David P Young
(Physics, Louisiana State University)
LaIr3 is a superconductor where the bands near the Fermi surface are dominated by Ir 5 d states that are strongly affected
by SOC. Thus, it is one of the few examples of a lanthanide-based superconductor where 5 d electrons play the dominant
role in the superconductivity. The superconducting parameters obtained from physical properties measurements of LaIr3 suggest
that it is a weakly-coupled BCS-type superconductor. These results motivate future work focused on exploring
intermetallic Ir-based superconductors that form in noncentrosymmetric structure types. Strong SOC in these systems
would then be antisymmetric, which often leads to exotic and unconventional superconductivity.
*DPY acknowledges support from the NSF through Grant No. DMR-1306392.
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