Malleability of uranium: Manipulating the charge-density wave in epitaxial films

被引：13

作者：

Springell, R. ^{[1
]}

Ward, R. C. C. ^{[2
]}

Bouchet, J. ^{[3
]}

Chivall, J. ^{[4
]}

Wermeille, D. ^{[5
]}

Normile, P. S. ^{[5
]}

Langridge, S. ^{[6
]}

Zochowski, S. W. ^{[4
]}

Lander, G. H. ^{[7
]}

机构：

[1] Univ Bristol, Interface Anal Ctr, Sch Phys, Bristol BS2 8BS, Avon, England

[2] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England

[3] CEA, DAM, DIF, F-91297 Arpajon, France

[4] UCL, Dept Phys & Astron, London WC1E 6BT, England

[5] XMaS, European Synchrotron Radiat Facil, F-38043 Grenoble 09, France

[6] Rutherford Appleton Lab, ISIS, Didcot OX11 0QX, Oxon, England

[7] European Commiss, Joint Res Ctr, Inst Transuranium Elements, D-76125 Karlsruhe, Germany

来源：

PHYSICAL REVIEW B | 2014年 / 89卷 / 24期

关键词：

ALPHA-URANIUM; CRYSTAL; SUPERCONDUCTIVITY; METALS;

D O I：

10.1103/PhysRevB.89.245101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report x-ray synchrotron experiments on epitaxial films of uranium, deposited on niobium and tungsten seed layers. Despite similar lattice parameters for these refractory metals, the uranium epitaxial arrangements are different and the strains propagated along the orthorhombic a axis of the uranium layers are of opposite sign. At low temperatures these changes in epitaxy result in dramatic modifications to the behavior of the charge-density wave in uranium. The differences are explained with the current theory for the electron-phonon coupling in the uranium lattice. Our results emphasize the intriguing possibilities of producing epitaxial films of elements that have complex structures like the light actinides uranium to plutonium.

引用

页数：6

共 20 条

[1] CRYSTAL STRUCTURE VARIATIONS IN ALPHA URANIUM AT LOW TEMPERATURES
BARRETT, CS
MUELLER, MH
HITTERMAN, RL
[J]. PHYSICAL REVIEW, 1963, 129 (02): : 625 - +
[2] Bland J. A. C., 2006, ULTRATHIN MAGNETIC S
[3] Lattice dynamics of α uranium
Bouchet, J.
[J]. PHYSICAL REVIEW B, 2008, 77 (02):
[4] New synchrotron radiation sources and the next-generation light sources
Hasnain, SS
Kamitsubo, H
Mills, DM
[J]. JOURNAL OF SYNCHROTRON RADIATION, 2001, 8 : 1171 - 1171
[5] Chang J, 2012, NAT PHYS, V8, P871, DOI [10.1038/nphys2456, 10.1038/NPHYS2456]
[6] Chivall J., 2011, THESIS U COLL LONDON
[7] Refinement of the equation of state of α-uranium
Dewaele, A.
Bouchet, J.
Occelli, F.
Hanfland, M.
Garbarino, G.
[J]. PHYSICAL REVIEW B, 2013, 88 (13):
[8] Donohue J., 1974, The Structures of the Elements
[9] Observation and analysis of multidomain epitaxy of α-Mn on MgO(111)
Grigorov, IL
Fitzsimmons, MR
Siu, IL
Walker, JC
[J]. PHYSICAL REVIEW LETTERS, 1999, 82 (26) : 5309 - 5312
[10] THE SOLID-STATE PROPERTIES OF URANIUM - A HISTORICAL-PERSPECTIVE AND REVIEW
LANDER, GH
FISHER, ES
BADER, SD
[J]. ADVANCES IN PHYSICS, 1994, 43 (01) : 1 - 111

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