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  Signatures of phase transitions in the microwave response of YbRh2Si2

Parkkinen, K., Dressel, M., Kliemt, K., Krellner, C., Geibel, C., Steglich, F., et al. (2015). Signatures of phase transitions in the microwave response of YbRh2Si2. Physics Procedia, 75, 340-347. doi:10.1016/j.phpro.2015.12.040.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-9168-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-26AD-2
Genre: Journal Article

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 Creators:
Parkkinen, Katja1, Author
Dressel, Martin1, Author
Kliemt, Kristin1, Author
Krellner, Cornelius2, Author              
Geibel, Christoph3, Author              
Steglich, Frank4, Author              
Scheffler, Marc1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
3Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863465              
4Frank Steglich, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863467              

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 Abstract: We used a spectroscopic microwave technique utilizing superconducting stripline resonators at frequencies between 3 GHz and 15 GHz to examine the charge dynamics of YbRh2Si2 at temperatures and magnetic fields close to the quantum critical point. The different electronic phases of this heavy-fermion compound, in particular the antiferromagnetic, Fermi-liquid, and non-Fermi-liquid regimes, were probed with temperature-dependent microwave measurements between 40 mK and 600 mK at a set of different magnetic fields up to 140 mT. Signatures of phase transitions were observed, which give information about the dynamic response of this peculiar material that exhibits field-tuned quantum criticality and pronounced deviations from Fermi-liquid theory.

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Language(s): eng - English
 Dates: 2015-12-062015-12-06
 Publication Status: Published in print
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Title: Physics Procedia
Source Genre: Journal
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Pages: - Volume / Issue: 75 Sequence Number: - Start / End Page: 340 - 347 Identifier: -