Inherent Spin Density Wave Instability in Heavy-Fermion Superconductors

1987 ◽  
Vol 56 (6) ◽  
pp. 2136-2148 ◽  
Author(s):  
Masaru Kato ◽  
Kazushige Machida
Keyword(s):  
Spin Density ◽  
Heavy Fermion ◽  
Density Wave ◽  
Spin Density Wave ◽  
Wave Instability ◽  
Heavy Fermion Superconductors

scholarly journals Field-Induced Coupled Superconductivity and Spin Density Wave Order in the Heavy Fermion CompoundCeCoIn5

2009 ◽  
Vol 103 (23) ◽  
Author(s):  
J. Spehling ◽  
R. H. Heffner ◽  
J. E. Sonier ◽  
N. Curro ◽  
C. H. Wang ◽  
...  
Keyword(s):  
Spin Density ◽  
Heavy Fermion ◽  
Density Wave ◽  
Spin Density Wave

scholarly journals Competing orders and spin-density-wave instability in La(O 1−x F x )FeAs

2008 ◽  
Vol 83 (2) ◽  
pp. 27006 ◽  
Author(s):  
J. Dong ◽  
H. J. Zhang ◽  
G. Xu ◽  
Z. Li ◽  
G. Li ◽  
...  
Keyword(s):  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Wave Instability ◽  
Competing Orders

scholarly journals Competing magnetic orders in the superconducting state of heavy-fermion CeRhIn5

2017 ◽  
Vol 114 (21) ◽  
pp. 5384-5388 ◽  
Author(s):  
P. F. S. Rosa ◽  
J. Kang ◽  
Yongkang Luo ◽  
N. Wakeham ◽  
E. D. Bauer ◽  
...  
Keyword(s):  
Spin Density ◽  
Superconducting State ◽  
Heavy Fermion ◽  
Magnetic State ◽  
Applied Pressure ◽  
Density Wave ◽  
Quantum Critical Point ◽  
Spin Density Wave ◽  
Zero Field ◽  
Model Calculations

Applied pressure drives the heavy-fermion antiferromagnet CeRhIn5 toward a quantum critical point that becomes hidden by a dome of unconventional superconductivity. Magnetic fields suppress this superconducting dome, unveiling the quantum phase transition of local character. Here, we show that 5% magnetic substitution at the Ce site in CeRhIn5, either by Nd or Gd, induces a zero-field magnetic instability inside the superconducting state. This magnetic state not only should have a different ordering vector than the high-field local-moment magnetic state, but it also competes with the latter, suggesting that a spin-density-wave phase is stabilized in zero field by Nd and Gd impurities, similarly to the case of Ce0.95Nd0.05CoIn5. Supported by model calculations, we attribute this spin-density wave instability to a magnetic-impurity-driven condensation of the spin excitons that form inside the unconventional superconducting state.

Sign in / Sign up

Export Citation Format

Share Document