Circularly polarized near-field scanning optical microscope for investigations of edge states of a two-dimensional electron system

Applied Physics A volume 121, pages1341–1345(2015)Cite this article

Abstract

We report on investigations of the quantum Hall chiral edge states using a near-field scanning optical microscope that enables us to irradiate circularly polarized light from the probe tip with spatial resolution below the diffraction limit. We have found a clear evidence for the formation of spin-split incompressible strips near the edge of a two-dimensional electron system in high magnetic fields.

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Acknowledgments

We acknowledge the stimulated discussion in the meeting of the Cooperative Research Project of the Research Institute of Electrical Communication, Tohoku University.

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Affiliations

  1. Division of Physics, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, 305-8571, Japan

    Shintaro Nomura, Syuhei Mamyouda, Hironori Ito, Yusuke Shibata, Tomoya Ohira, Luno Yoshikawa & Youiti Ootuka

  2. National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, 305-8568, Japan

    Satoshi Kashiwaya

  3. NTT Basic Research Laboratories, 3-1 Morinosato-Wakamiya, Atsugi, 243-0198, Japan

    Masumi Yamaguchi, Hiroyuki Tamura & Tatsushi Akazaki

Authors
  1. Shintaro Nomura
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  2. Syuhei Mamyouda
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  3. Hironori Ito
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  4. Yusuke Shibata
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  5. Tomoya Ohira
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  6. Luno Yoshikawa
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  7. Youiti Ootuka
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  8. Satoshi Kashiwaya
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  9. Masumi Yamaguchi
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  10. Hiroyuki Tamura
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  11. Tatsushi Akazaki
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Corresponding author

Correspondence to Shintaro Nomura.

Additional information

This work was partly supported by Kakenhi Nos. 22103002, 25103704, 26610079, 15H03673, 15H05853.

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Nomura, S., Mamyouda, S., Ito, H. et al. Circularly polarized near-field scanning optical microscope for investigations of edge states of a two-dimensional electron system. Appl. Phys. A 121, 1341–1345 (2015). https://doi.org/10.1007/s00339-015-9420-9

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Keywords

  • High Magnetic Field
  • Edge State
  • Bulk Region
  • Confinement Potential
  • Subband Energy