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Positron annihilati...
Positron annihilation study of the electronic structure of URu2Si2 : Fermi surface and hidden order parameter
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Biasini, M (författare)
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- Rusz, Jan (författare)
- Uppsala universitet,Fysiska institutionen
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Mills, A. P., Jr. (författare)
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(creator_code:org_t)
- 2009
- 2009
- Engelska.
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Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 79:8, s. 085115-
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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visa färre...
Abstract
Ämnesord
Stäng
- The Fermi surface (FS) of URu2Si2 in the paramagnetic phase has been reinvestigated via the measurement of the two-dimensional angular correlation of the positron annihilation radiation. Unlike previous measurements our experiment provides evidence that density-functional theory gives a fair qualitative description of the FS, showing a large contribution from the 5f electrons, although the Fermi volume of electron and hole pockets determined experimentally is smaller than the theoretical description. Furthermore, we propose a method to investigate the nature of the hidden order responsible for the 17.5 K transition.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Fermi surface
- paramagnetic materials
- positron annihilation
- ruthenium alloys
- silicon alloys
- uranium alloys
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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