Demountable single-atom electron source

Chuhei Oshima; Eiji Rokuta; Takahiro Itagaki; Tsuyosi Ishikawa; Bokurai Cho; Hong Shi Kuo; Ing Shouh Hwang; Tien T. Tsong

doi:10.1380/ejssnt.2005.412

Demountable single-atom electron source

Chuhei Oshima^*, Eiji Rokuta, Takahiro Itagaki, Tsuyosi Ishikawa, Bokurai Cho, Hong Shi Kuo, Ing Shouh Hwang, Tien T. Tsong

^*Corresponding author for this work

Waseda University

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

We report emission properties of single-atom tips, noble electron sources terminated with a single atom. The repairing function of the sources, which had been already demonstrated by using field ion microscope [Fu, et al. Phys. Rev. B 64, 113401 (2001)], was confirmed by using field emission microscopy, and in addition, the demountable character was demonstrated repeatedly. The brightness of the collimated beam emitted from the single-atom tips was estimated to be an order of 10¹⁰ A/cm²/str. (E ∼ 2 keV), which is two orders of magnitude higher than those of the conventional field emission sources. There appeared an extra shoulder in the energy spectra, which is strongly correlated with a single-atom ended structure. The fluctuation of the emission current exhibited step-and spike-like noises, which were typical features of nano-electron sources. The single-atom sources are promising candidates of the electron sources in high-performance electron-beam instruments.

Original language	English
Pages (from-to)	412-416
Number of pages	5
Journal	e-Journal of Surface Science and Nanotechnology
Volume	3
DOIs	https://doi.org/10.1380/ejssnt.2005.412
Publication status	Published - 2005 Dec 9

Keywords

Coherent beam
Demountable source
High brightness
Single-atom source

ASJC Scopus subject areas

Surfaces, Coatings and Films
Materials Science (miscellaneous)

Access to Document

10.1380/ejssnt.2005.412

Cite this

@article{92303a92ebbb4ec68628e2f7a24d860c,

title = "Demountable single-atom electron source",

abstract = "We report emission properties of single-atom tips, noble electron sources terminated with a single atom. The repairing function of the sources, which had been already demonstrated by using field ion microscope [Fu, et al. Phys. Rev. B 64, 113401 (2001)], was confirmed by using field emission microscopy, and in addition, the demountable character was demonstrated repeatedly. The brightness of the collimated beam emitted from the single-atom tips was estimated to be an order of 1010 A/cm2/str. (E ∼ 2 keV), which is two orders of magnitude higher than those of the conventional field emission sources. There appeared an extra shoulder in the energy spectra, which is strongly correlated with a single-atom ended structure. The fluctuation of the emission current exhibited step-and spike-like noises, which were typical features of nano-electron sources. The single-atom sources are promising candidates of the electron sources in high-performance electron-beam instruments.",

keywords = "Coherent beam, Demountable source, High brightness, Single-atom source",

author = "Chuhei Oshima and Eiji Rokuta and Takahiro Itagaki and Tsuyosi Ishikawa and Bokurai Cho and Kuo, {Hong Shi} and Hwang, {Ing Shouh} and Tsong, {Tien T.}",

year = "2005",

month = dec,

day = "9",

doi = "10.1380/ejssnt.2005.412",

language = "English",

volume = "3",

pages = "412--416",

journal = "e-Journal of Surface Science and Nanotechnology",

issn = "1348-0391",

publisher = "Surface Science Society of Japan",

}

TY - JOUR

T1 - Demountable single-atom electron source

AU - Oshima, Chuhei

AU - Rokuta, Eiji

AU - Itagaki, Takahiro

AU - Ishikawa, Tsuyosi

AU - Cho, Bokurai

AU - Kuo, Hong Shi

AU - Hwang, Ing Shouh

AU - Tsong, Tien T.

PY - 2005/12/9

Y1 - 2005/12/9

N2 - We report emission properties of single-atom tips, noble electron sources terminated with a single atom. The repairing function of the sources, which had been already demonstrated by using field ion microscope [Fu, et al. Phys. Rev. B 64, 113401 (2001)], was confirmed by using field emission microscopy, and in addition, the demountable character was demonstrated repeatedly. The brightness of the collimated beam emitted from the single-atom tips was estimated to be an order of 1010 A/cm2/str. (E ∼ 2 keV), which is two orders of magnitude higher than those of the conventional field emission sources. There appeared an extra shoulder in the energy spectra, which is strongly correlated with a single-atom ended structure. The fluctuation of the emission current exhibited step-and spike-like noises, which were typical features of nano-electron sources. The single-atom sources are promising candidates of the electron sources in high-performance electron-beam instruments.

AB - We report emission properties of single-atom tips, noble electron sources terminated with a single atom. The repairing function of the sources, which had been already demonstrated by using field ion microscope [Fu, et al. Phys. Rev. B 64, 113401 (2001)], was confirmed by using field emission microscopy, and in addition, the demountable character was demonstrated repeatedly. The brightness of the collimated beam emitted from the single-atom tips was estimated to be an order of 1010 A/cm2/str. (E ∼ 2 keV), which is two orders of magnitude higher than those of the conventional field emission sources. There appeared an extra shoulder in the energy spectra, which is strongly correlated with a single-atom ended structure. The fluctuation of the emission current exhibited step-and spike-like noises, which were typical features of nano-electron sources. The single-atom sources are promising candidates of the electron sources in high-performance electron-beam instruments.

KW - Coherent beam

KW - Demountable source

KW - High brightness

KW - Single-atom source

UR - http://www.scopus.com/inward/record.url?scp=28844491763&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=28844491763&partnerID=8YFLogxK

U2 - 10.1380/ejssnt.2005.412

DO - 10.1380/ejssnt.2005.412

M3 - Article

AN - SCOPUS:28844491763

SN - 1348-0391

VL - 3

SP - 412

EP - 416

JO - e-Journal of Surface Science and Nanotechnology

JF - e-Journal of Surface Science and Nanotechnology

ER -

Demountable single-atom electron source

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this