Localized 5f electrons in superconducting PuCoIn 5: Consequences for superconductivity in PuCoGa 5

E. D. Bauer, M. M. Altarawneh, P. H. Tobash, K. Gofryk, O. E. Ayala-Valenzuela, J. N. Mitchell, R. D. McDonald, C. H. Mielke, F. Ronning, J. C. Griveau, E. Colineau, R. Eloirdi, R. Caciuffo, B. L. Scott, O. Janka, S. M. Kauzlarich, J. D. Thompson

Research output: Contribution to journalArticle

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Abstract

The physical properties of the first In analog of the PuMGa 5 (M=Co, Rh) family of superconductors, PuCoIn 5, are reported. With its unit cell volume being 28% larger than that of PuCoGa 5, the characteristic spin-fluctuation energy scale of PuCoIn 5 is three to four times smaller than that of PuCoGa 5, which suggests that the Pu 5f electrons are in a more localized state relative to PuCoGa 5. This raises the possibility that the high superconducting transition temperature T c=18.5K of PuCoGa 5 stems from the proximity to a valence instability, while the superconductivity at T c=2.5K of PuCoIn 5 is mediated by antiferromagnetic spin fluctuations associated with a quantum critical point.

Original languageEnglish (US)
Article number052206
JournalJournal of Physics Condensed Matter
Volume24
Issue number5
DOIs
StatePublished - Feb 8 2012

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Spin fluctuations
Superconductivity
superconductivity
Electrons
Transition Temperature
Cell Size
stems
Superconducting materials
Superconducting transition temperature
proximity
critical point
electrons
Physical properties
physical properties
transition temperature
analogs
valence
cells
energy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)
  • Medicine(all)

Cite this

Bauer, E. D., Altarawneh, M. M., Tobash, P. H., Gofryk, K., Ayala-Valenzuela, O. E., Mitchell, J. N., ... Thompson, J. D. (2012). Localized 5f electrons in superconducting PuCoIn 5: Consequences for superconductivity in PuCoGa 5. Journal of Physics Condensed Matter, 24(5), [052206]. https://doi.org/10.1088/0953-8984/24/5/052206

Localized 5f electrons in superconducting PuCoIn 5 : Consequences for superconductivity in PuCoGa 5. / Bauer, E. D.; Altarawneh, M. M.; Tobash, P. H.; Gofryk, K.; Ayala-Valenzuela, O. E.; Mitchell, J. N.; McDonald, R. D.; Mielke, C. H.; Ronning, F.; Griveau, J. C.; Colineau, E.; Eloirdi, R.; Caciuffo, R.; Scott, B. L.; Janka, O.; Kauzlarich, S. M.; Thompson, J. D.

In: Journal of Physics Condensed Matter, Vol. 24, No. 5, 052206, 08.02.2012.

Research output: Contribution to journalArticle

Bauer, ED, Altarawneh, MM, Tobash, PH, Gofryk, K, Ayala-Valenzuela, OE, Mitchell, JN, McDonald, RD, Mielke, CH, Ronning, F, Griveau, JC, Colineau, E, Eloirdi, R, Caciuffo, R, Scott, BL, Janka, O, Kauzlarich, SM & Thompson, JD 2012, 'Localized 5f electrons in superconducting PuCoIn 5: Consequences for superconductivity in PuCoGa 5', Journal of Physics Condensed Matter, vol. 24, no. 5, 052206. https://doi.org/10.1088/0953-8984/24/5/052206
Bauer, E. D. ; Altarawneh, M. M. ; Tobash, P. H. ; Gofryk, K. ; Ayala-Valenzuela, O. E. ; Mitchell, J. N. ; McDonald, R. D. ; Mielke, C. H. ; Ronning, F. ; Griveau, J. C. ; Colineau, E. ; Eloirdi, R. ; Caciuffo, R. ; Scott, B. L. ; Janka, O. ; Kauzlarich, S. M. ; Thompson, J. D. / Localized 5f electrons in superconducting PuCoIn 5 : Consequences for superconductivity in PuCoGa 5. In: Journal of Physics Condensed Matter. 2012 ; Vol. 24, No. 5.
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