TY - JOUR
T1 - The Sub-mK Transition of CeCu 6 in a New Light
AU - Schuberth, Erwin
N1 - Publisher Copyright:
© 2019, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2019/6/1
Y1 - 2019/6/1
N2 - Following our recent discovery of superconductivity in YbRh2Si2 at 2 mK, nearly coinciding with a hybrid electronic–nuclear magnetic moment ordering (Schuberth et al. in Science 351:485, 2016), we re-analyzed previous data on the magnetic susceptibility of CeCu6 at ultra-low temperatures. We found that there is a direct analogy between the magnetic susceptibilities of both compounds which raises the question if there is the same hybrid transition in CeCu6, possibly also followed by superconductivity. Data taken some 20 years ago by groups in Garching and at Cornell University revealed an antiferromagnetic transition around 3 mK and further anomalies around 0.5 mK, very similar to the case of YbRh2Si2. If the above speculation is correct, it would suggest that superconductivity is a general phenomenon, occurring even in a heavy-fermion compound like CeCu6 which for a long time was considered as “non-ordering.”.
AB - Following our recent discovery of superconductivity in YbRh2Si2 at 2 mK, nearly coinciding with a hybrid electronic–nuclear magnetic moment ordering (Schuberth et al. in Science 351:485, 2016), we re-analyzed previous data on the magnetic susceptibility of CeCu6 at ultra-low temperatures. We found that there is a direct analogy between the magnetic susceptibilities of both compounds which raises the question if there is the same hybrid transition in CeCu6, possibly also followed by superconductivity. Data taken some 20 years ago by groups in Garching and at Cornell University revealed an antiferromagnetic transition around 3 mK and further anomalies around 0.5 mK, very similar to the case of YbRh2Si2. If the above speculation is correct, it would suggest that superconductivity is a general phenomenon, occurring even in a heavy-fermion compound like CeCu6 which for a long time was considered as “non-ordering.”.
KW - Heavy-fermion systems
KW - Magnetic phase transitions
KW - Superconductivity
UR - http://www.scopus.com/inward/record.url?scp=85063051031&partnerID=8YFLogxK
U2 - 10.1007/s10909-019-02177-8
DO - 10.1007/s10909-019-02177-8
M3 - Article
AN - SCOPUS:85063051031
SN - 0022-2291
VL - 195
SP - 437
EP - 441
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
IS - 5-6
ER -