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cond-mat.supr-con2020
Calculation of an enhanced A1g symmetry mode induced by Higgs oscillations in the Raman spectrum of high-temperature cuprate superconductors
M. Puviani, A. Baum, S. Ono +3
In superconductors the Anderson-Higgs mechanism allows for the existence of a collective amplitude (Higgs) mode which can couple to eV-light mainly in a non-linear Raman-like proce…
cond-mat.supr-con2020
Current-assisted Raman activation of the Higgs mode in superconductors
Matteo Puviani, Lukas Schwarz, Xiao-Xiao Zhang +2
The Higgs mode in superconductors is a scalar mode without electric or magnetic dipole moment. Thus, it is commonly believed that its excitation is restricted to a nonlinear two-ph…