Magnetooptics of composite fermions

I.V. Kukushkin^а, б, J.H. Smet^б, Klitzing Klaus von^б, K. Eberl^б
^аИнститут физики твердого тела имени Ю.А. Осипьяна РАН, ул. Академика Осипьяна 2, Черноголовка, Московская обл., 142432, Российская Федерация
^бMax-Planck Institut für Festkörperforschung, Stuttgart, Germany

The Fermi energy and the Zeeman splitting of composite fermions are measured from the temperature dependence of the electron spin polarization at $\nu=1/2$. We demonstrate that the Zeeman splitting of composite fermions is enhanced by a factor of $2.5$ due to the interaction between CFs. The latter is very sensitive on the finite width of the $\mathrm{2D}$ channel. The spin polarization at $\nu=1/3$ and $\nu=2/3$ displays an activated behavior and the derived spin-wave gaps are compared with simultaneously measured transport values.

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English fulltext is available at DOI: 10.1070/1063-7869/44/10S/S06

PACS: 73.43.−f, 73.43.Cd, 71.70.−d (все)
DOI: 10.1070/1063-7869/44/10S/S06
URL: https://ufn.ru/ru/articles/2001/13/f/
Цитата: Kukushkin I V, Smet J H, Klitzing Klaus von, Eberl K "Magnetooptics of composite fermions" УФН 171 36–39 (2001)

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RT Journal
T1 Magnetooptics of composite fermions
A1 Kukushkin,I.V.
A1 Smet,J.H.
A1 Klitzing Klaus von
A1 Eberl,K.
PB Успехи физических наук
PY 2001
FD 10 Sup, 2001
JF Успехи физических наук
JO Усп. физ. наук
VO 171
IS 13
SP 36-39
DO 10.1070/1063-7869/44/10S/S06
LK https://ufn.ru/ru/articles/2001/13/f/

English citation: Kukushkin I V, Smet J H, Klitzing Klaus von, Eberl K “Magnetooptics of composite fermions” Phys. Usp. 44 36–39 (2001); DOI: 10.1070/1063-7869/44/10S/S06