Photoelectric effect in uranium

C. P. Opeil; R. C. Albers; K. B. Blagoev; M. Gulácsi; J. C. Lashley; P. B. Littlewood; M. E. Manley; B. Mihaila; P. S. Riseborough; R. K. Schulze; D. J. Thoma; H. M. Volz; J. L. Smith

doi:10.1143/jpsjs.75s.56

Photoelectric effect in uranium

C. P. Opeil
, R. C. Albers
, K. B. Blagoev
, M. Gulácsi
, J. C. Lashley
, P. B. Littlewood
, M. E. Manley
, B. Mihaila
, P. S. Riseborough
, R. K. Schulze
, D. J. Thoma
, H. M. Volz
, J. L. Smith

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

2 Scopus citations

Abstract

We report the work function Φ for single and polycrytalline α-uranium over the temperature range 173≤T≥873K. Photoemission spectroscopy (PES) measurements were made at energies 21 eV and 40 eV. Surfaces were prepared in situ by sputter/annealing cycles under UHV conditions. Like most metals the polycrystalline specimens showed little temperature dependence, the change in the work function ΔΦ = 1 %. Conversely the single crystal changed by 5 % over the same temperature range. A sudden temperature arrest in ΔΦ centered at 500 K was detected in the single crystal. This arrest coincides with the ductile-to-brittle (dilation change) transformation temperature.

Original language	English
Pages (from-to)	56-57
Number of pages	2
Journal	Journal of the Physical Society of Japan
Volume	75
Issue number	SUPPL.
DOIs	https://doi.org/10.1143/jpsjs.75s.56
State	Published - 2006
Externally published	Yes

Keywords

Photoemission
α-U

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10.1143/jpsjs.75s.56

Cite this

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title = "Photoelectric effect in uranium",

abstract = "We report the work function Φ for single and polycrytalline α-uranium over the temperature range 173≤T≥873K. Photoemission spectroscopy (PES) measurements were made at energies 21 eV and 40 eV. Surfaces were prepared in situ by sputter/annealing cycles under UHV conditions. Like most metals the polycrystalline specimens showed little temperature dependence, the change in the work function ΔΦ = 1 \%. Conversely the single crystal changed by 5 \% over the same temperature range. A sudden temperature arrest in ΔΦ centered at 500 K was detected in the single crystal. This arrest coincides with the ductile-to-brittle (dilation change) transformation temperature.",

keywords = "Photoemission, α-U",

author = "Opeil, \{C. P.\} and Albers, \{R. C.\} and Blagoev, \{K. B.\} and M. Gul{\'a}csi and Lashley, \{J. C.\} and Littlewood, \{P. B.\} and Manley, \{M. E.\} and B. Mihaila and Riseborough, \{P. S.\} and Schulze, \{R. K.\} and Thoma, \{D. J.\} and Volz, \{H. M.\} and Smith, \{J. L.\}",

year = "2006",

doi = "10.1143/jpsjs.75s.56",

language = "English",

volume = "75",

pages = "56--57",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "SUPPL.",

}

TY - JOUR

T1 - Photoelectric effect in uranium

AU - Opeil, C. P.

AU - Albers, R. C.

AU - Blagoev, K. B.

AU - Gulácsi, M.

AU - Lashley, J. C.

AU - Littlewood, P. B.

AU - Manley, M. E.

AU - Mihaila, B.

AU - Riseborough, P. S.

AU - Schulze, R. K.

AU - Thoma, D. J.

AU - Volz, H. M.

AU - Smith, J. L.

PY - 2006

Y1 - 2006

N2 - We report the work function Φ for single and polycrytalline α-uranium over the temperature range 173≤T≥873K. Photoemission spectroscopy (PES) measurements were made at energies 21 eV and 40 eV. Surfaces were prepared in situ by sputter/annealing cycles under UHV conditions. Like most metals the polycrystalline specimens showed little temperature dependence, the change in the work function ΔΦ = 1 %. Conversely the single crystal changed by 5 % over the same temperature range. A sudden temperature arrest in ΔΦ centered at 500 K was detected in the single crystal. This arrest coincides with the ductile-to-brittle (dilation change) transformation temperature.

AB - We report the work function Φ for single and polycrytalline α-uranium over the temperature range 173≤T≥873K. Photoemission spectroscopy (PES) measurements were made at energies 21 eV and 40 eV. Surfaces were prepared in situ by sputter/annealing cycles under UHV conditions. Like most metals the polycrystalline specimens showed little temperature dependence, the change in the work function ΔΦ = 1 %. Conversely the single crystal changed by 5 % over the same temperature range. A sudden temperature arrest in ΔΦ centered at 500 K was detected in the single crystal. This arrest coincides with the ductile-to-brittle (dilation change) transformation temperature.

KW - Photoemission

KW - α-U

UR - https://www.scopus.com/pages/publications/40749085914

U2 - 10.1143/jpsjs.75s.56

DO - 10.1143/jpsjs.75s.56

M3 - Article

AN - SCOPUS:40749085914

SN - 0031-9015

VL - 75

SP - 56

EP - 57

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - SUPPL.

ER -

Photoelectric effect in uranium

Abstract

Keywords

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