Photoluminescence signature of skyrmions at ��= 1

Autor:	Portengen, T., Chapman, J. R., Nicopoulos, V. Nikos, Johnson, N. F.
Rok vydání:	1996
Předmět:	Mesoscale and Nanoscale Physics (cond-mat.mes-hall) FOS: Physical sciences Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Quantitative Biology::Genomics
DOI:	10.48550/arxiv.cond-mat/9611161
Popis:	The photoluminescence spectrum of quantized Hall states near filling factor ��= 1 is investigated theoretically. For ��>= 1 the spectrum consists of a right-circularly polarized (RCP) line and a left-circularly polarized (LCP) line, whose mean energy: (1) does not depend on the electron g factor for spin-1/2 quasielectrons, (2) does depend on g for charged spin-texture excitations (skyrmions). For ��< 1 the spectrum consists of a LCP line shifted down in energy from the LCP line at ��>= 1. The g-factor dependence of the red shift of the LCP line determines the nature of the negatively charged excitations. 11 pages, 2 PostScript figures. Replaced with version to appear in Physical Review B Rapid Communications. Minor changes, reference added
Databáze:	OpenAIRE
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