Shakeup Effects on Photoluminescence from the Wigner Crystal

Details Shakeup Effects on Photoluminescence from the Wigner Crystal Shakeup Effects on Photoluminescence from the Wigner Crystal

1994-06-14

arxiv.org/abs/cond-mat/9406055v1

Physics

Condensed Matter

4 pages, REVTeX 3.0, 2 figures(ps file available upon request), #phd08

Scientific paper

10.1016/0038-1098(95)00297-9

We develop a method to compute shakeup effects on photoluminescence in a Wigner crystal from localized holes. Our method treats the lattice electrons and the tunneling electron on an equal footing, and uses a quantum-mechanical calculation of the collective modes that is realistic throughout the Brillouin zone. We find that shakeup produces a series of sidebands that may be identified with maxima in the collective mode density of states, and definitively distinguishes the crystal state from a liquid state. We also find a shift in the main luminescence peak, that is associated with lattice relaxation in the vicinity of a vacancy.

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