Photoelectric Effect in Uranium

被引：2

作者：

Opeil, C. P. ^{[1
]}

Albers, R. C. ^{[1
]}

Blagoev, K. B. ^{[1
]}

Gulacsi, M. ^{[2
]}

Lashley, J. C. ^{[1
]}

Littlewood, P. B. ^{[3
]}

Manley, M. E. ^{[1
]}

Mihaila, B. ^{[1
]}

Riseborough, P. S. ^{[4
]}

Schulze, R. K. ^{[1
]}

Thoma, D. J. ^{[1
]}

Volz, H. M. ^{[1
]}

Smith, J. L. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] Australian Natl Univ, Inst Adv Studies, Dept Theoret Phys, Canberra, ACT 0200, Australia

[3] Cavendish Lab, Cambridge CB3 0HE, England

[4] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2006年 / 75卷

关键词：

alpha-U; Photoemission;

D O I：

10.1143/JPSJS.75S.56

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the work function phi for single and polycrytalline alpha-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 Delta phi = 1 %. Conversely the single crystal changed by 5 % over the same temperature range. A sudden temperature arrest in Delta phi centered at 500 K was detected in the single crystal. This arrest coincides with the ductile-to-brittle (dilation change) transformation temperature.

引用

页码：56 / +

页数：2

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