A nanoemitter based on a superconducting material

Jin Long Hou, Wei Tse Chang, Chih Chiang Shih, Yu Fong Yu, Tsu Yi Fu, Ing Shouh Hwang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The coherence of an electron beam is crucial for the performance of electron microscopy, coherent diffractive imaging, holography, and many other advanced instrumentation methods that rely on the phase coherence of electron waves. Here we present a reliable method for preparing a niobium nanoemitter, which is thermally and chemically stable. The tip apex is a (100) facet with a lateral dimension of ∼1 nm, surrounded by four (310) facets. Adsorption of one monolayer of noble gas, particularly Xe, onto the nanoemitter greatly enhances the emission current and current stability. This electron source will probably possess both spatial and temporal coherence if the emitter is cooled below the superconducting temperature.

Original languageEnglish
Article number263107
JournalApplied Physics Letters
Volume108
Issue number26
DOIs
Publication statusPublished - 2016 Jun 27

Fingerprint

flat surfaces
phase coherence
electron sources
niobium
holography
rare gases
electron microscopy
emitters
apexes
electron beams
adsorption
electrons
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Hou, J. L., Chang, W. T., Shih, C. C., Yu, Y. F., Fu, T. Y., & Hwang, I. S. (2016). A nanoemitter based on a superconducting material. Applied Physics Letters, 108(26), [263107]. https://doi.org/10.1063/1.4954943

A nanoemitter based on a superconducting material. / Hou, Jin Long; Chang, Wei Tse; Shih, Chih Chiang; Yu, Yu Fong; Fu, Tsu Yi; Hwang, Ing Shouh.

In: Applied Physics Letters, Vol. 108, No. 26, 263107, 27.06.2016.

Research output: Contribution to journalArticle

Hou, JL, Chang, WT, Shih, CC, Yu, YF, Fu, TY & Hwang, IS 2016, 'A nanoemitter based on a superconducting material', Applied Physics Letters, vol. 108, no. 26, 263107. https://doi.org/10.1063/1.4954943
Hou JL, Chang WT, Shih CC, Yu YF, Fu TY, Hwang IS. A nanoemitter based on a superconducting material. Applied Physics Letters. 2016 Jun 27;108(26). 263107. https://doi.org/10.1063/1.4954943
Hou, Jin Long ; Chang, Wei Tse ; Shih, Chih Chiang ; Yu, Yu Fong ; Fu, Tsu Yi ; Hwang, Ing Shouh. / A nanoemitter based on a superconducting material. In: Applied Physics Letters. 2016 ; Vol. 108, No. 26.
@article{c0d761c70485402aba09db732a3ddf3a,
title = "A nanoemitter based on a superconducting material",
abstract = "The coherence of an electron beam is crucial for the performance of electron microscopy, coherent diffractive imaging, holography, and many other advanced instrumentation methods that rely on the phase coherence of electron waves. Here we present a reliable method for preparing a niobium nanoemitter, which is thermally and chemically stable. The tip apex is a (100) facet with a lateral dimension of ∼1 nm, surrounded by four (310) facets. Adsorption of one monolayer of noble gas, particularly Xe, onto the nanoemitter greatly enhances the emission current and current stability. This electron source will probably possess both spatial and temporal coherence if the emitter is cooled below the superconducting temperature.",
author = "Hou, {Jin Long} and Chang, {Wei Tse} and Shih, {Chih Chiang} and Yu, {Yu Fong} and Fu, {Tsu Yi} and Hwang, {Ing Shouh}",
year = "2016",
month = "6",
day = "27",
doi = "10.1063/1.4954943",
language = "English",
volume = "108",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "26",

}

TY - JOUR

T1 - A nanoemitter based on a superconducting material

AU - Hou, Jin Long

AU - Chang, Wei Tse

AU - Shih, Chih Chiang

AU - Yu, Yu Fong

AU - Fu, Tsu Yi

AU - Hwang, Ing Shouh

PY - 2016/6/27

Y1 - 2016/6/27

N2 - The coherence of an electron beam is crucial for the performance of electron microscopy, coherent diffractive imaging, holography, and many other advanced instrumentation methods that rely on the phase coherence of electron waves. Here we present a reliable method for preparing a niobium nanoemitter, which is thermally and chemically stable. The tip apex is a (100) facet with a lateral dimension of ∼1 nm, surrounded by four (310) facets. Adsorption of one monolayer of noble gas, particularly Xe, onto the nanoemitter greatly enhances the emission current and current stability. This electron source will probably possess both spatial and temporal coherence if the emitter is cooled below the superconducting temperature.

AB - The coherence of an electron beam is crucial for the performance of electron microscopy, coherent diffractive imaging, holography, and many other advanced instrumentation methods that rely on the phase coherence of electron waves. Here we present a reliable method for preparing a niobium nanoemitter, which is thermally and chemically stable. The tip apex is a (100) facet with a lateral dimension of ∼1 nm, surrounded by four (310) facets. Adsorption of one monolayer of noble gas, particularly Xe, onto the nanoemitter greatly enhances the emission current and current stability. This electron source will probably possess both spatial and temporal coherence if the emitter is cooled below the superconducting temperature.

UR - http://www.scopus.com/inward/record.url?scp=84977117726&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84977117726&partnerID=8YFLogxK

U2 - 10.1063/1.4954943

DO - 10.1063/1.4954943

M3 - Article

AN - SCOPUS:84977117726

VL - 108

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 26

M1 - 263107

ER -