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Spin polarization in quantum Hall state obtained by Kerr rotation spectra

Ito, H ; Seo, M ; Fukuoka, D ; Oto, K ; Muro, K ; Hirayama, Y ; Kumada, N

AIP conference proceedings, 2011, Vol.1399 (1) [Periódico revisado por pares]

United States

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Título:
Spin polarization in quantum Hall state obtained by Kerr rotation spectra
Autor: Ito, H ; Seo, M ; Fukuoka, D ; Oto, K ; Muro, K ; Hirayama, Y ; Kumada, N
Assuntos: ALUMINIUM ARSENIDES ; ALUMINIUM COMPOUNDS ; Aluminum gallium arsenides ; ANGULAR MOMENTUM ; ARSENIC COMPOUNDS ; ARSENIDES ; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; Conferences ; ELECTRONS ; ELEMENTARY PARTICLES ; FERMIONS ; FERROMAGNETISM ; Gallium arsenide ; GALLIUM ARSENIDES ; GALLIUM COMPOUNDS ; INTERFACES ; LEPTONS ; MAGNETISM ; MAGNETO-OPTICAL EFFECTS ; MOTION ; NANOSCIENCE AND NANOTECHNOLOGY ; NANOSTRUCTURES ; NUCLEON-NUCLEON POTENTIAL ; ORIENTATION ; PARTICLE PROPERTIES ; PNICTIDES ; POLARIZATION ; POTENTIALS ; QUANTUM STATES ; QUANTUM WELLS ; QUASI PARTICLES ; ROTATION ; SKYRME POTENTIAL ; SOLITONS ; SPECTRA ; SPIN ; SPIN ORIENTATION
É parte de: AIP conference proceedings, 2011, Vol.1399 (1)
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: We developed a novel system for a high sensitive measurement of Kerr rotation spectra, and Kerr rotation spectra of quantum Hall system in AlGaAs/GaAs 17 nm quantum well were measured. Spin polarization of quantum Hall states was obtained by integrating the spectra, since Kerr rotation spectra reflect spin population of electrons. The spin polarization decreased rapidly on both sides of nu = 1, which is ascribed to Skyrmion effect. However, the spin polarization present a flat region around nu = 1 which means a quantum Hall ferromagnet is not fully spin polarized.
Editor: United States
Idioma: Inglês

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Spin polarization in quantum Hall state obtained by Kerr rotation spectra

Ito, H ; Seo, M ; Fukuoka, D ; Oto, K ; Muro, K ; Hirayama, Y ; Kumada, N

United States

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