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 Citations (Scopus)

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
Publication status	Published - 2006

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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 = "The Physical Society of Japan",

number = "SUPPL.",

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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

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

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