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Add to Calendar 2/23/2018 1:00 pm 2/23/2018 America/Chicago Condensed Matter Seminar: "Spin-orbit coupling and exotic superconductivity in topological half-Heusler semimetal YPtBi." DESCRIPTION:

In all known fermionic superfluids, Cooper pairs are composed of spin-1/2 quasi-particles that pair to form either spin-singlet or spin-triplet bound states. The "spin" of a Bloch electron, however, is fixed by the symmetries of the crystal and the atomic orbitals from which it is derived, and in some cases can behave as if it were a spin-3/2 particle. The superconducting state of such a system allows pairing states to form beyond triplet, with higher spin quasi-particles combining to form quintet or even septet pairs. After reviewing experimental evidence for high-spin pairing in the exotic superconducting state of the half-Heusler compound YPtBi, I will introduce our recent work elucidating the influence of spin-orbit coupling on both the normal and superconducting states of this system.

\n\nSPEAKER:

Johnpierre Paglione, University of Maryland

ESB 190

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Condensed Matter Seminar: "Spin-orbit coupling and exotic superconductivity in topological half-Heusler semimetal YPtBi."

Speaker Johnpierre Paglione, University of Maryland
Date: 2/23/2018
Time: 1 p.m.
Location:

ESB 190

Sponsor:

Physics - Condensed Matter

Event Type: Seminar/Symposium
 

In all known fermionic superfluids, Cooper pairs are composed of spin-1/2 quasi-particles that pair to form either spin-singlet or spin-triplet bound states. The "spin" of a Bloch electron, however, is fixed by the symmetries of the crystal and the atomic orbitals from which it is derived, and in some cases can behave as if it were a spin-3/2 particle. The superconducting state of such a system allows pairing states to form beyond triplet, with higher spin quasi-particles combining to form quintet or even septet pairs. After reviewing experimental evidence for high-spin pairing in the exotic superconducting state of the half-Heusler compound YPtBi, I will introduce our recent work elucidating the influence of spin-orbit coupling on both the normal and superconducting states of this system.

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