English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Ultra-low temperature ac susceptibility of the heavy-fermion superconductor YbRh2Si2

Steinke, L., Schuberth, E., Lausberg, S., Tippmann, M., Steppke, A., Krellner, C., et al. (2017). Ultra-low temperature ac susceptibility of the heavy-fermion superconductor YbRh2Si2. Journal of Physics: Conference Series, 807(5): 052007, pp. 1-7. doi:10.1088/1742-6596/807/5/052007.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0001-658B-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-658E-E
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Steinke, L.1, Author              
Schuberth, E.1, Author              
Lausberg, S.1, Author              
Tippmann, M.2, Author
Steppke, A.1, Author              
Krellner, C.1, Author              
Geibel, C.3, Author              
Steglich, F.4, Author              
Brando, M.5, Author              
Affiliations:
1Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
2External Organizations, ou_persistent22              
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              
5Manuel Brando, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863469              

Content

show
hide
Free keywords: -
 Abstract: Recently, we reported on the discovery of superconductivity in YbRh 2 Si 2 at the very low temperature T c = 2 mK. We present here complementary measurements of the temperature and field dependence of the ac susceptibility χ ac ( T ) of this heavy-fermion system for temperatures down to 1 mK and magnetic fields in the basal plane up to 75 mT. The in-phase response IMG [http://ej.iop.org/images/1742-6596/807/5/052007/JPCS_807_5_052007_eqn001.gif] {{χ }^{^{\prime} }}_{ac}(T)} shows a steep drop at T c , but it does not become negative, possibly because of the presence of the earth field that was not compensated. The out-of-phase response IMG [http://ej.iop.org/images/1742-6596/807/5/052007/JPCS_807_5_052007_eqn002.gif] {{{χ }^{^{\prime\prime} }}_{ac}(T) shows an increase right below T c indicating that the transition is first order. We also observe two kinks in the field dependence of χ ac ( B ) at B 1 ≈ 50 mT and B 2 ≈ 60 mT, which imply a more complex T – B phase diagram for YbRh 2 Si 2 with B ⊥ c . These features possibly indicate two second-order phase transitions or domain reorientation at B 1 and a phase transition from the antiferromagnetic to the paramagnetic state at B 2 .

Details

show
hide
Language(s): eng - English
 Dates: 2017-08-122017-08-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1088/1742-6596/807/5/052007
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of Physics: Conference Series
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 807 (5) Sequence Number: 052007 Start / End Page: 1 - 7 Identifier: ISSN: 1742-6588
CoNE: /journals/resource/111097776606042