永井 滋一

論文

• Spin polarization of field-emitted electrons from pyramidal structure on Co-covered Pt tip fabricated via thermally induced faceting

  Shigekazu Nagai, Keitaro Miyata, Haku Uchikoshi

  APPLIED SURFACE SCIENCE 731 2026年6月15日
• In-situ atom probe analysis of field-assisted etching of tungsten in O₂ and H₂O

  Shigekazu Nagai, Eiji Oyaizu, Tatsuo Iwata

  SURFACE SCIENCE 767 2026年4月
• Temperature and Field Dependence of Energy Shifts in Energy Distribution of Field-emitted Electrons from High-<i>T</i><sub>c</sub> Superconductor Bi-2212

  Haruto Obitsu, Tatsuo Iwata, Koichi Hata, Shigekazu Nagai

  e-Journal of Surface Science and Nanotechnology 2024年5月11日
• Atom Probe Analysis of Tungsten Tips Fabricated by Field-assisted Oxygen Etching

  Masanori Nanjo, Ikumi Kuroda, Tatsuo Iwata, Shigekazu Nagai

  e-Journal of Surface Science and Nanotechnology 22(2) 145-148 2024年3月2日
• Identification of Crystalline Orientation of Tungsten Tips by Machine Learning Analysis of Field Ion Micrographs

  Mizuki Yamada, Tadasuke Okazawa, Shigekazu Nagai, Koichi Hata

  E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY 20 20-24 2022年3月 査読有り責任著者
• Highly spin-polarized field emission from < 100 >-oriented Co2MnGa tips

  Nagai Shigekazu, Ikemizu Hiromu, Hata Koichi, Ishikawa Tsuyoshi

  JOURNAL OF APPLIED PHYSICS 126(13) 2019年10月7日 査読有り
• Fabrication and characterization of spin-polarized Co2MnGa field emission electron source

  Ishikawa Tsuyoshi, Nagai Shigekazu, Oh-ishi Keiichiro, Ikemizu Hiromu, Hata Koichi

  APPLIED PHYSICS EXPRESS 12(7) 2019年7月1日 査読有り
• Spin-polarized field emission from Cr thin film deposited on W < 0 0 1 > tips

  Nagai Shigekazu, Sakai Naoya, Miyazaki Kento, Iwata Tatsuo, Hata Koichi

  APPLIED SURFACE SCIENCE 475 273-277 2019年5月1日 査読有り
• Field-emission of spin-polarized electrons from Cr thin film grown on W{113} surfaces

  2018 31ST INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC) 2018年 査読有り
• Development of micro focus X-ray microscope equipped with high brightness Li/W<111> field emitter

  2018 31ST INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC) 2018年 査読有り
• Field dependence of evaporated ion species in field-induced chemical etching of tungsten with oxygen and nitrogen

  2018 31ST INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC) 2018年 査読有り
• FEM and FIM of Graphene: Possible Observation of Electronic States at Edges

  2018 31ST INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC) 2018年 査読有り
• Spin polarization of field-emitted electrons from Co2MnSi emitter fabricated by focused ion beam technique

  2018 31ST INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC) 2018年 査読有り
• Effect of height and atomic arrangement of the super-tip of a gas field ion emitter on helium ion beam current

  Shigekazu Nagai, Shu Katoh, Tatsuo Iwata, Kazuo Kajiwara, Koichi Hata

  SURFACE AND INTERFACE ANALYSIS 48(11) 1132-1135 2016年11月 査読有り
• An advanced ionizing radiation monitoring network based on using SrI2(Eu)/MPPC module

  Shigekazu Nagai, Ken Kawamura, Yoshihide Kimura, Junji Yoshii, Renzo Ikeda, Ryuichi Shimizu

  SURFACE AND INTERFACE ANALYSIS 48(11) 1263-1268 2016年11月 査読有り
• Abundance of field-ionized ion species and current stability of ion beam emitted in He-Ne gas mixture

  Keisuke Komaki, Shigekazu Nagai, Tatsuo Iwata, Kazuo Kajiwara, Koichi Hata

  SURFACE AND INTERFACE ANALYSIS 48(11) 1139-1143 2016年11月 査読有り
• Time of flight analysis of field-ionized he in mixtures with Ne or Ar

  Keisuke Komaki, Shigekazu Nagai, Tatsuo Iwata, Kazuo Kajiwara, Koichi Hata

  e-Journal of Surface Science and Nanotechnology 14 23-27 2016年2月6日 査読有り
• Spin polarization of electrons field-emitted from Cr thin film deposited on W &lt; 001 &gt; tips

  Shigekazu Nagai, Naoya Sakai, Kento Miyazaki, Hiroki Toyama, Tatsuo Iwata, Kazuo Kajiwara, Koichi Hata

  2016 29TH INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC) 2016年 査読有り
• He-Ne混合下における電界電離Heイオンビームの電流増強と安定度

  小牧 啓介, 永井 滋一, 岩田 達夫, 梶原 和夫, 畑 浩一

  表面科学学術講演会要旨集 35 338-338 2015年
• 単結晶Cr/W<001>陰極表面からの電界放出電子のスピン偏極度測定

  阪井 那央哉, 永井 滋一, 岩田 達夫, 梶原 和夫, 畑 浩一

  表面科学学術講演会要旨集 35 251-251 2015年