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Role of electron spin in integer quantum hall photoluminescence

✍ Scribed by Kenichi Asano; Tsuneya Ando

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
550 KB
Volume
127
Category
Article
ISSN
0038-1098

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✦ Synopsis

We investigate numerically the photoluminescence (PL) spectrum in the integer quantum Hall regime and find that the electron spins play important roles. The spectra for the left circularly polarized light show peak splittings when the Fermi levels lies in the excited Landau level, which is caused by the inter Landau level scattering between electrons with anti-parallel spins. At around n e , 1 the PL energy is strongly affected by the interplay between the screening and multiple spin flipping (skyrmion) effects.

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