Optically Induced Nuclear Spin Polarization in the Quantum Hall Regime: The Effect of Electron Spin Polarization through Exciton and Trion Excitations

Optically Induced Nuclear Spin Polarization in the Quantum Hall Regime: The Effect of Electron Spin Polarization through Exciton and Trion Excitations

Phys. Rev. Lett. 115, 026804 (2015) We study nuclear spin polarization in the quantum Hall regime through the optically pumped electron spin polarization in the lowest Landau level. The nuclear spin polarization is measured as a nuclear magnetic field $B_N$ by means of the sensitive resistive detect...

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Hauptverfasser: Akiba, K, Kanasugi, S, Yuge, T, Nagase, K, Hirayama, Y
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Kanasugi, S
Yuge, T
Nagase, K
Hirayama, Y
description Phys. Rev. Lett. 115, 026804 (2015) We study nuclear spin polarization in the quantum Hall regime through the optically pumped electron spin polarization in the lowest Landau level. The nuclear spin polarization is measured as a nuclear magnetic field $B_N$ by means of the sensitive resistive detection. We find the dependence of $B_N$ on filling factor unmonotonous. The comprehensive measurements of $B_N$ with the help of the circularly polarized photoluminescence measurements indicate the participation of the photo-excited complexes i.e., the exciton and trion (charged exciton), in nuclear spin polarization. On the basis of a novel estimation method of the equilibrium electron spin polarization, we analyze the experimental data and conclude that the filling factor dependence of $B_N$ is understood by the effect of electron spin polarization through excitons and trions.
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Rev. Lett. 115, 026804 (2015) We study nuclear spin polarization in the quantum Hall regime through the optically pumped electron spin polarization in the lowest Landau level. The nuclear spin polarization is measured as a nuclear magnetic field $B_N$ by means of the sensitive resistive detection. We find the dependence of $B_N$ on filling factor unmonotonous. The comprehensive measurements of $B_N$ with the help of the circularly polarized photoluminescence measurements indicate the participation of the photo-excited complexes i.e., the exciton and trion (charged exciton), in nuclear spin polarization. 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Rev. Lett. 115, 026804 (2015) We study nuclear spin polarization in the quantum Hall regime through the optically pumped electron spin polarization in the lowest Landau level. The nuclear spin polarization is measured as a nuclear magnetic field $B_N$ by means of the sensitive resistive detection. We find the dependence of $B_N$ on filling factor unmonotonous. The comprehensive measurements of $B_N$ with the help of the circularly polarized photoluminescence measurements indicate the participation of the photo-excited complexes i.e., the exciton and trion (charged exciton), in nuclear spin polarization. On the basis of a novel estimation method of the equilibrium electron spin polarization, we analyze the experimental data and conclude that the filling factor dependence of $B_N$ is understood by the effect of electron spin polarization through excitons and trions.</description><subject>Physics - Mesoscale and Nanoscale Physics</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNplkMtOwzAQRbNhgQp7Vmh-ICF-xQk7VAVaqWp5ZB85ttNYch5yHdTyIXwvSWDHaubOnXsXJwjuUBzRlLH4Qbiz-YwQRThiGUXXwfdh8EYKay-w7dQotYL9KK0WDj4G08Frb4UzX8KbvoNJ-0bD2yg6P7awmWLwro-m1Y9QTEZe11p66GvI7bS4KfK_xDeuH48N5Gdp_KRFp6Bws7NclqfTTXBVC3vSt39zFRTPebHehLvDy3b9tAtFwlBIaFxpyjBTNWFMcMw4VURRjTUhaSzSrMJJmlSIYIRYRTCXCZe1lDxLecVjsgruf2sXLuXgTCvcpZz5lDMf8gOC8GHe</recordid><startdate>20141218</startdate><enddate>20141218</enddate><creator>Akiba, K</creator><creator>Kanasugi, S</creator><creator>Yuge, T</creator><creator>Nagase, K</creator><creator>Hirayama, Y</creator><scope>GOX</scope></search><sort><creationdate>20141218</creationdate><title>Optically Induced Nuclear Spin Polarization in the Quantum Hall Regime: The Effect of Electron Spin Polarization through Exciton and Trion Excitations</title><author>Akiba, K ; Kanasugi, S ; Yuge, T ; Nagase, K ; Hirayama, Y</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a651-340be4525df355a72574d3d4e2e3380a89b2686b132115b327c67cfcc7987b703</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Physics - Mesoscale and Nanoscale Physics</topic><toplevel>online_resources</toplevel><creatorcontrib>Akiba, K</creatorcontrib><creatorcontrib>Kanasugi, S</creatorcontrib><creatorcontrib>Yuge, T</creatorcontrib><creatorcontrib>Nagase, K</creatorcontrib><creatorcontrib>Hirayama, Y</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Akiba, K</au><au>Kanasugi, S</au><au>Yuge, T</au><au>Nagase, K</au><au>Hirayama, Y</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optically Induced Nuclear Spin Polarization in the Quantum Hall Regime: The Effect of Electron Spin Polarization through Exciton and Trion Excitations</atitle><date>2014-12-18</date><risdate>2014</risdate><abstract>Phys. Rev. Lett. 115, 026804 (2015) We study nuclear spin polarization in the quantum Hall regime through the optically pumped electron spin polarization in the lowest Landau level. The nuclear spin polarization is measured as a nuclear magnetic field $B_N$ by means of the sensitive resistive detection. We find the dependence of $B_N$ on filling factor unmonotonous. The comprehensive measurements of $B_N$ with the help of the circularly polarized photoluminescence measurements indicate the participation of the photo-excited complexes i.e., the exciton and trion (charged exciton), in nuclear spin polarization. On the basis of a novel estimation method of the equilibrium electron spin polarization, we analyze the experimental data and conclude that the filling factor dependence of $B_N$ is understood by the effect of electron spin polarization through excitons and trions.</abstract><doi>10.48550/arxiv.1412.5941</doi><oa>free_for_read</oa></addata></record>
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title Optically Induced Nuclear Spin Polarization in the Quantum Hall Regime: The Effect of Electron Spin Polarization through Exciton and Trion Excitations
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