IMFUFA-seminar: Exploring superconductivity with neutron scattering

Meet Tim Tejsner from the Niels Bohr Institute, who will speak about exploring superconductivity with neutron scattering
Onsdag
18
september
Start:kl. 13.00
Slut:kl. 15.00
Sted: Roskilde Universitet, Bygning 27.1, lokale I

Below a critical temperature, electrons in superconducting materials are, despite the Coulomb repulsion, able to "pair up" and effectively become bosons. Bosons, unlike fermions, are not encumbered by the Pauli exclusion principle and all conduction electrons are able to simultaneously occupy the same quantum state. This electron-electron pairing is understood for simple metals, but the mechanism for the so-called unconventional superconductors has escaped our best efforts since their discovery in 1986. These materials are particularly interesting since they have unusually high critical temperatures. In this seminar, I will discuss how the technique of neutron scattering has provided us with evidence of novel, microscopic ordering phenomena in the (La,Sr)_2CuO_4 system  and how these orders can help us understand the elusive pairing mechanism.

Seminaret foregår på engelsk.

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