Thursday, September 29, 2011, 1:30 pm — Small Seminar Room, Bldg. 510
A striking particularity of unconventional superconductivity is its coupling with magnetism, as illustrated by the phase diagrams of the different families where magnetic order exists in close proximity to superconductivity, or by the manifestation within the superconducting phase of a collective spin excitation mode observable by inelastic neutron scattering and called magnetic resonance.
As an example of this prominent connection, I will present in the first part the phase diagram of the strongly magnetic Ba(Fe1-xCrx)2As2, and compare it to other phase diagrams from the same family, but with different doping elements. In the second part, I will examine the coupling of the magnetic resonance with superconductivity upon application of pressure and discuss the implications of this study.
Hosted by: Igor Zaliznyak
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