Microscopic and Spectroscopic Studies of Light-Induced Magnetization Switching of GdFeCo Facilitated by Photoemission Electron Microscopy

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概要

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• By means of soft X-ray photoemission electron microscopy (PEEM), we have for the first time observed spatially and temporally resolved element-specific magnetization switching driven by circularly polarized femtosecond laser pulses. We have confirmed that the magnetization switching depending on the helicity of the circularly polarized laser occurs in the region where the spin temperature is raised appropriately. It is also found that the electronic states in the irradiated region remain unchanged even after millions magnetization reversal cycles.

• 2012-07-25

著者

• Sekiyama Akira

  Graduate School Of Engineering Science Osaka University

• Arai Kuniaki

  Institute For Solid State Physics University Of Tokyo

• Tsunoda Masakiyo

  Department Of Electronic Engineering Graduate School Of Engineering Tohoku University

• Suga Shigemasa

  Graduate School Of Engineering Science Osaka University

• KOTSUGI Masato

  Japan Synchrotron Radiation Research Institute

• NAKAMURA Tetsuya

  Japan Synchrotron Radiation Research Institute

• Isogami Shinji

  Department Of Electronic Engineering Tohoku University

• Tsukamoto Arata

  College Of Science And Technology Nihon University

• KODAMA Kenji

  Japan Synchrotron Radiation Research Institute/SPring-8

• Kinoshita Toyohiko

  Japan Synchrotron Radiation Res. Inst./spring‐8 Hyogo Jpn

• Fujiwara Hidenori

  Graduate School Of Engineering Science Osaka University

• Schneider Claus

  Peter Grünberg Institute (PGI-6), Research Center Jülich, D-52425 Jülich, Germany

• Suga Shigemasa

  Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan

• Ohkochi Takuo

  Japan Synchrotron Radiation Research Institute/SPring-8, Sayo, Hyogo 679-5198, Japan

• Fukushima Kazuaki

  Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan

• Adam Roman

  Peter Grünberg Institute (PGI-6), Research Center Jülich, D-52425 Jülich, Germany

• Ohkochi Takuo

  Japan Atomic Energy Agency, Synchrotron Radiation Research Center, SPring-8, Sayo, Hyogo 679-5148

• Adam Roman

  Peter Grünberg Institute (PGI-6), Research Center Jülich, D-52425 Jülich, Germany

• Arai Kuniaki

  Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan

• Isogami Shinji

  Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan

• Kodama Kenji

  Japan Synchrotron Radiation Research Institute (JASRI)/SPring-8, Sayo, Hyogo 679-5198

• Yamaguchi Jun'ichi

  Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan

• Tsukamoto Arata

  College of Science and Technology, Nihon University, Funabashi, Chiba 274-8501, Japan

• Kodama Kenji

  Japan Synchrotron Radiation Research Institute/SPring-8, Sayo, Hyogo 679-5198, Japan

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