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Tuning the Casimir-Lifshitz force with gapped metals
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- Boström, M. (författare)
- Centre of Excellence ENSEMBLE 3 Sp. z o. o., Wolczynska Str. 133, 01-919 Warsaw, Poland
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- Khan, M. R. (författare)
- Centre of Excellence ENSEMBLE 3 Sp. z o. o., Wolczynska Str. 133, 01-919 Warsaw, Poland
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- Gopidi, H. R. (författare)
- Centre of Excellence ENSEMBLE 3 Sp. z o. o., Wolczynska Str. 133, 01-919 Warsaw, Poland
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- Centre of Excellence ENSEMBLE 3 Sp z o. o., Wolczynska Str. 133, 01-919 Warsaw, Poland Department of Energy and Process Engineering, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway (creator_code:org_t)
- American Physical Society (APS), 2023
- 2023
- Engelska.
- Ingår i: Physical Review B. - : American Physical Society (APS). - 2469-9950 .- 2469-9969. ; 108:16
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- The Casimir-Lifshitz interaction, a long-range force that arises between solids and molecules due to quantum fluctuations in electromagnetic fields, has been widely studied in solid-state physics. The degree of polarization in this interaction is influenced by the dielectric properties of the materials involved, which in turn are determined by factors such as band-to-band transitions, free carrier contributions, phonon contributions, and exciton contributions. Gapped metals, a new class of materials with unique electronic structures, offer the potential to manipulate dielectric properties and, consequently, the Casimir-Lifshitz interaction. In this study, we theoretically investigate the finite temperature Casimir-Lifshitz interaction in La3Te4-based gapped metal systems with varying off-stoichiometry levels. We demonstrate that off-stoichiometric effects in gapped metals can be used to control the magnitude and, in some cases, even the sign of Casimir-Lifshitz interactions. We predict measurable corrections due to stoichiometry on the predicted Casimir force between a La3Te4 surface and a gold sphere, attached to an atomic force microscopy tip.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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- Boström, M.
- Khan, M. R.
- Gopidi, H. R.
- Brevik, I.
- Li, Y.
- Persson, Clas
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- Malyi, O. I.
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