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  Unconventional Bulk Superconductivity in YFe2Ge2 Single Crystals

Chen, J., Gamża, M. B., Banda, J., Murphy, K., Tarrant, J., Brando, M., et al. (2020). Unconventional Bulk Superconductivity in YFe2Ge2 Single Crystals. Physical Review Letters, 125(23): 237002, pp. 1-6. doi:10.1103/PhysRevLett.125.237002.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-9D01-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0007-DF63-F
Genre: Journal Article

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 Creators:
Chen, Jiasheng1, Author
Gamża, Monika B.1, Author
Banda, Jacintha2, Author              
Murphy, Keiron1, Author
Tarrant, James1, Author
Brando, Manuel3, Author              
Grosche, F. Malte1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
3Manuel Brando, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863469              

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 Abstract: Sharp superconducting transition anomalies observed in a new generation of single crystals establish that bulk superconductivity is intrinsic to high purity YFe2Ge2. Low temperature heat capacity measurements suggest a disorder and field dependent residual Sommerfeld coefficient, consistent with disorder-induced in-gap states as expected for a sign-changing order parameter. The sevenfold reduction in disorder scattering in these new crystals to residual resistivities similar or equal to 0.45 mu Omega cm was achieved using a new liquid transport growth technique, paving the way for multiprobe experiments investigating the normal and superconducting states of YFe2Ge2.

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Language(s): eng - English
 Dates: 2020-11-302020-11-30
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1103/PhysRevLett.125.237002
 Degree: -

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
 Creator(s):
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 125 (23) Sequence Number: 237002 Start / End Page: 1 - 6 Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1