Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode

Xiuguang Jin; Fumiaki Ichihashi; Atsushi Mano; Masahiko Suzuki; Tsuneo Yasue; Takanori Koshikawa; Yoshikazu Takeda

doi:doi:10.11648/j.ijmsa.20160504.11

| Peer-Reviewed |

Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode

Xiuguang Jin, Fumiaki Ichihashi, Atsushi Mano, Masahiko Suzuki, Tsuneo Yasue, Takanori Koshikawa, Yoshikazu Takeda

Received: 5 August 2016 Accepted: Published: 8 August 2016

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

Abstract

We successfully developed a new transmission-type GaAs/GaAsP strained superlattice photocathode with an AlGaAs transparent inter-layer and Si₃N₄ anti-reflection coating. The electrons emitted from this photocathode showed a high spin polarization of 90% with a quantum efficiency as high as 0.4%. In the application for spin-polarized low energy electron microscope, a high emission current of over 1 µA was observed at 3.6 mW pump laser power. Transmission electron microscopy observation revealed that there were a small disorder and some dislocations in the GaAs/GaAsP superlattice layers. The disordered superlattice layers result in a fluctuation of the superlattice band structure and the dislocations trap the photo-electrons during the diffusion to the surface. Both of the defects influenced the performance of spin-polarized photocathode.

DOI	10.11648/j.ijmsa.20160504.11
Published in	International Journal of Materials Science and Applications (Volume 5, Issue 4, July 2016)
Page(s)	178-182
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Spin Polarization, Photocathode, Superlattice, Microscopy

References

[1]	F. Lin, A. Bogacz, P. Brindza, Proceeding of IPAC2015 (2015) 1302.
[2]	Y. Jing, V. N. Litvinenko, D. Trbojevic, Proceeding of IPAC2015 (2015) 757.
[3]	S. Komamiya, Proceeding of IPAC2016 (2016) 1.
[4]	B. List, L. Hagge, N. J. Walker, Proceeding of IPAC2016 (2016) 51.
[5]	M. Kuwahara, S. Kusunoki, Y. Nambo, K. Saitoh, X. G. Jin, T. Ujihara, H. Asano, Y. Takeda, N. Tanaka, Appl. Phys. Lett., 105 (2014) 193101.
[6]	K. Yoshida, K. Murakami, J. Fujita, J. Vac. Sci. Technol. B32 (2014) 06FC02.
[7]	O. Romanyuk, S. F. Garrido, P. Jiricek, I. Bartos, L. Geelhaar, O. Brandt, T. Taskova, Appl. Phys. Lett. 106 (2015) 021602.
[8]	D. Yu, C. Math, M. Neier, M. Escher, G. Rangelov, M. Donath, Surf. Sci. 601 (2007) 5803.
[9]	T. Omori, Y. Kurihara, Y. Takeuchi, M. Yoshioka, T. Nakanishi, S. Okumi, M. Tsubata, M. Tawada, K. Togawa, Y. Tanimoto, C. Takahashi, T. Baba, M. Mizuta, Jpn. J. Appl. PHys. 33 (1994) 5676.
[10]	K. Togawa, T. Nakanishi, T. Baba, F. Furuta, H. Horinaka, Y. Kurihara, H. Matsumoto, T. Matsuyama, T. Nishitani, S. Okumi, T. Omori, C. Suzuki, Y. Takeuchi, K. Wada, M. Yamamoto, M. Yoshioka, Nucl. Instrum. Methods Phys. Res. A 455 (2000) 118.
[11]	T. Nishitani, T. Nakanishi, M. Yamamoto, S. Okumi, F. Furuta, M. Miyamoto, M. Kuwahara, N. Yamamoto, and K. Naniwa, H. Horinaka. T. Matsuyama, K. Togawa, T. Saka, M. Tawada, T. Omori, Y. Kurihara, M. Yoshioka, K. Kato, and T. Baba, J. Appl. Phys. 97 (2005) 094907.
[12]	Yu. A. Mamaev, L. G. Gerchikov, Yu. P. Yashin, D. A. Vasiliev, V. V. Kuzmichev, V. M. Ustinov, A. E. Zhukov, V. S. Mikhrin, A. P. Vasiliev, Appl. Phys. Lett. 93 (2008) 81114.
[13]	N. Yamamoto, T. Nakanishi, A. Mano, Y. Nakagawa, S. Okumi, M. Yamamoto, T. Konomi, X. G. Jin, T. Ujihara, Y. Takeda, T. Ohshima, T. Saka, T. Kato, H. Horinaka, T. Yasue, T. Koshikawa, M. Kuwahara, J. Appl. Phys. 103 (2008) 064905.
[14]	X. G. Jin, N. Yamamoto, Y. Nakagawa, A. Mano, T. Kato, M. Tanioku, T. Ujihara, Y. Takeda, S. Okumi, M. Yamamoto, T. Nakanishi, T. Saka, H. Horinaka, T. Kato, T. Yasue, T. Koshikawa, Appl. Phys. Express 1 (2008) 045002.
[15]	X. G. Jin, Y. Maeda, T. Saka, M. Tanioku, S. Fuchi, T. Ujihara, Y. Takeda, N. Yamamoto, Y. Nakagawa, A. Mano, S. Okumi, M. Yamamoto, T. Nakanishi, H. Horinaka, T. Kato, T. Yasue, and T. Koshikawa, J. Cryst. Growth 310 (2008) 5039.
[16]	T. Saka, Y. Ishida, M. Kanda, X. G. Jin, Y. Maeda, S. Fuchi, Y. Takeda, T. Matsuyama, H. Horinaka, T. Kato, N. Yamamoto, A. Mano, Y. Nakagawa, M. Kuwahara, S. Okumi, T. Nakanishi, M. Yamamoto, T. Ohshima, T. Kohashi, M. Suzuki, M. Hashimoto, T. Yasue, T. Koshikawa, e-J. Surf. Sci. Nanotech. 8 (2010) 125.
[17]	Chris G. Van de Walle, Phys. Rev. B39 (1989) 1871.
[18]	S. Gasiorowicz, in Quantum Physics, Chapter 5, Ed. C. Mills, (John Wiley & Sons, Inc., New York, 1996).
[19]	X. G. Jin, H. Nakahara, K. Saitoh, T. Saka, T. Ujihara, N. Tanaka, Y. Takeda, J. Cryst. Growth 353 (2012) 84.
[20]	H. M. Cox, D. E. Aspnes, S. J. Allen, P. Bastos, D. M. Hwang, S. Mahajan, M. A. Shahid, P. C. Morais, Appl. Phys. Lett. 57 (1990) 611.
[21]	M. Suzuki, M. Hashimoto, T. Yasue, T. Koshikawa, Y. Nakagawa, T. Konomi, A. Mano, N. Yamamoto, M. Kuwahara, M. Yamamoto, S. Okumi, T. Nakanishi, X. G. Jin, T. Ujihara, Y. Takeda, T. Kohashi, T. Oshima, T. Saka, T. Kato, H. Horinaka, Appl. Phys. Express 3 (2010) 026601.

Cite This Article

Plain Text BibTeX RIS

APA Style

Xiuguang Jin, Fumiaki Ichihashi, Atsushi Mano, Masahiko Suzuki, Tsuneo Yasue, et al. (2016). Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode. International Journal of Materials Science and Applications, 5(4), 178-182. https://doi.org/10.11648/j.ijmsa.20160504.11

Copy | Download

ACS Style

Xiuguang Jin; Fumiaki Ichihashi; Atsushi Mano; Masahiko Suzuki; Tsuneo Yasue, et al. Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode. Int. J. Mater. Sci. Appl. 2016, 5(4), 178-182. doi: 10.11648/j.ijmsa.20160504.11

Copy | Download

AMA Style

Xiuguang Jin, Fumiaki Ichihashi, Atsushi Mano, Masahiko Suzuki, Tsuneo Yasue, et al. Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode. Int J Mater Sci Appl. 2016;5(4):178-182. doi: 10.11648/j.ijmsa.20160504.11

Copy | Download

@article{10.11648/j.ijmsa.20160504.11,
  author = {Xiuguang Jin and Fumiaki Ichihashi and Atsushi Mano and Masahiko Suzuki and Tsuneo Yasue and Takanori Koshikawa and Yoshikazu Takeda},
  title = {Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode},
  journal = {International Journal of Materials Science and Applications},
  volume = {5},
  number = {4},
  pages = {178-182},
  doi = {10.11648/j.ijmsa.20160504.11},
  url = {https://doi.org/10.11648/j.ijmsa.20160504.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20160504.11},
  abstract = {We successfully developed a new transmission-type GaAs/GaAsP strained superlattice photocathode with an AlGaAs transparent inter-layer and Si3N4 anti-reflection coating. The electrons emitted from this photocathode showed a high spin polarization of 90% with a quantum efficiency as high as 0.4%. In the application for spin-polarized low energy electron microscope, a high emission current of over 1 µA was observed at 3.6 mW pump laser power. Transmission electron microscopy observation revealed that there were a small disorder and some dislocations in the GaAs/GaAsP superlattice layers. The disordered superlattice layers result in a fluctuation of the superlattice band structure and the dislocations trap the photo-electrons during the diffusion to the surface. Both of the defects influenced the performance of spin-polarized photocathode.},
 year = {2016}
}

Copy | Download

TY  - JOUR
T1  - Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode
AU  - Xiuguang Jin
AU  - Fumiaki Ichihashi
AU  - Atsushi Mano
AU  - Masahiko Suzuki
AU  - Tsuneo Yasue
AU  - Takanori Koshikawa
AU  - Yoshikazu Takeda
Y1  - 2016/08/08
PY  - 2016
N1  - https://doi.org/10.11648/j.ijmsa.20160504.11
DO  - 10.11648/j.ijmsa.20160504.11
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 178
EP  - 182
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20160504.11
AB  - We successfully developed a new transmission-type GaAs/GaAsP strained superlattice photocathode with an AlGaAs transparent inter-layer and Si3N4 anti-reflection coating. The electrons emitted from this photocathode showed a high spin polarization of 90% with a quantum efficiency as high as 0.4%. In the application for spin-polarized low energy electron microscope, a high emission current of over 1 µA was observed at 3.6 mW pump laser power. Transmission electron microscopy observation revealed that there were a small disorder and some dislocations in the GaAs/GaAsP superlattice layers. The disordered superlattice layers result in a fluctuation of the superlattice band structure and the dislocations trap the photo-electrons during the diffusion to the surface. Both of the defects influenced the performance of spin-polarized photocathode.
VL  - 5
IS  - 4
ER  -

Copy | Download

Author Information

Xiuguang Jin

Institute for Advanced Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Japan
Fumiaki Ichihashi

Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Japan
Atsushi Mano

Synchrotron Radiation Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Japan
Masahiko Suzuki

Fundamental Electronics Research Institute, Osaka Electro-Communication University, Neyagawa, Osaka, Japan
Tsuneo Yasue

Fundamental Electronics Research Institute, Osaka Electro-Communication University, Neyagawa, Osaka, Japan
Takanori Koshikawa

Fundamental Electronics Research Institute, Osaka Electro-Communication University, Neyagawa, Osaka, Japan
Yoshikazu Takeda

Aichi Synchrotron Radiation Center, Seto, Japan

Download PDF

Sections

Plain Text BibTeX RIS

APA Style

Xiuguang Jin, Fumiaki Ichihashi, Atsushi Mano, Masahiko Suzuki, Tsuneo Yasue, et al. (2016). Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode. International Journal of Materials Science and Applications, 5(4), 178-182. https://doi.org/10.11648/j.ijmsa.20160504.11

Copy | Download

ACS Style

Xiuguang Jin; Fumiaki Ichihashi; Atsushi Mano; Masahiko Suzuki; Tsuneo Yasue, et al. Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode. Int. J. Mater. Sci. Appl. 2016, 5(4), 178-182. doi: 10.11648/j.ijmsa.20160504.11

Copy | Download

AMA Style

Xiuguang Jin, Fumiaki Ichihashi, Atsushi Mano, Masahiko Suzuki, Tsuneo Yasue, et al. Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode. Int J Mater Sci Appl. 2016;5(4):178-182. doi: 10.11648/j.ijmsa.20160504.11

Copy | Download

@article{10.11648/j.ijmsa.20160504.11,
  author = {Xiuguang Jin and Fumiaki Ichihashi and Atsushi Mano and Masahiko Suzuki and Tsuneo Yasue and Takanori Koshikawa and Yoshikazu Takeda},
  title = {Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode},
  journal = {International Journal of Materials Science and Applications},
  volume = {5},
  number = {4},
  pages = {178-182},
  doi = {10.11648/j.ijmsa.20160504.11},
  url = {https://doi.org/10.11648/j.ijmsa.20160504.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20160504.11},
  abstract = {We successfully developed a new transmission-type GaAs/GaAsP strained superlattice photocathode with an AlGaAs transparent inter-layer and Si3N4 anti-reflection coating. The electrons emitted from this photocathode showed a high spin polarization of 90% with a quantum efficiency as high as 0.4%. In the application for spin-polarized low energy electron microscope, a high emission current of over 1 µA was observed at 3.6 mW pump laser power. Transmission electron microscopy observation revealed that there were a small disorder and some dislocations in the GaAs/GaAsP superlattice layers. The disordered superlattice layers result in a fluctuation of the superlattice band structure and the dislocations trap the photo-electrons during the diffusion to the surface. Both of the defects influenced the performance of spin-polarized photocathode.},
 year = {2016}
}

Copy | Download

TY  - JOUR
T1  - Improvement of Quantum Efficiency in Transmission-Type Spin-Polarized Photocathode
AU  - Xiuguang Jin
AU  - Fumiaki Ichihashi
AU  - Atsushi Mano
AU  - Masahiko Suzuki
AU  - Tsuneo Yasue
AU  - Takanori Koshikawa
AU  - Yoshikazu Takeda
Y1  - 2016/08/08
PY  - 2016
N1  - https://doi.org/10.11648/j.ijmsa.20160504.11
DO  - 10.11648/j.ijmsa.20160504.11
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 178
EP  - 182
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20160504.11
AB  - We successfully developed a new transmission-type GaAs/GaAsP strained superlattice photocathode with an AlGaAs transparent inter-layer and Si3N4 anti-reflection coating. The electrons emitted from this photocathode showed a high spin polarization of 90% with a quantum efficiency as high as 0.4%. In the application for spin-polarized low energy electron microscope, a high emission current of over 1 µA was observed at 3.6 mW pump laser power. Transmission electron microscopy observation revealed that there were a small disorder and some dislocations in the GaAs/GaAsP superlattice layers. The disordered superlattice layers result in a fluctuation of the superlattice band structure and the dislocations trap the photo-electrons during the diffusion to the surface. Both of the defects influenced the performance of spin-polarized photocathode.
VL  - 5
IS  - 4
ER  -

Copy | Download