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 language | English (US) |
|---|---|
| Article number | 052206 |
| Journal | Journal of Physics Condensed Matter |
| Volume | 24 |
| Issue number | 5 |
| DOIs | |
| State | Published - Feb 8 2012 |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Materials Science(all)
- Medicine(all)
Cite this
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 journal › Article
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TY - JOUR
T1 - Localized 5f electrons in superconducting PuCoIn 5
T2 - Consequences for superconductivity in PuCoGa 5
AU - Bauer, E. D.
AU - Altarawneh, M. M.
AU - Tobash, P. H.
AU - Gofryk, K.
AU - Ayala-Valenzuela, O. E.
AU - Mitchell, J. N.
AU - McDonald, R. D.
AU - Mielke, C. H.
AU - Ronning, F.
AU - Griveau, J. C.
AU - Colineau, E.
AU - Eloirdi, R.
AU - Caciuffo, R.
AU - Scott, B. L.
AU - Janka, O.
AU - Kauzlarich, S. M.
AU - Thompson, J. D.
PY - 2012/2/8
Y1 - 2012/2/8
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84856093654&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84856093654&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/24/5/052206
DO - 10.1088/0953-8984/24/5/052206
M3 - Article
C2 - 22194040
AN - SCOPUS:84856093654
VL - 24
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
SN - 0953-8984
IS - 5
M1 - 052206
ER -