Abstract
We report on a systematic evolution of the superconducting (SC) characteristics of CeCoIn5 via nuclear-quadrupole-resonance (NQR) measurement under pressure (P). The application of P significantly suppresses the nuclear spin-lattice relaxation rate 1/T1 that is dominated by antiferromagnetic (AFM) spin fluctuations (SFs). The marked suppression of AFM SFs leads to the reduction in the size of SC energy gap. Nevertheless, Tc increases with the pressure due to the increase in HF bandwidth. This is expected to make the lifetime of quasi-particles sufficiently long.
| Original language | English |
|---|---|
| Pages (from-to) | 404-406 |
| Number of pages | 3 |
| Journal | Physica B: Condensed Matter |
| Volume | 359-361 |
| Issue number | SPEC. ISS. |
| DOIs | |
| Publication status | Published - Apr 30 2005 |
| Externally published | Yes |
Fingerprint
Keywords
- NQR
- Pressure effect
- Superconductivity
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
Cite this
Unconventional superconductivity near the antiferromagnetic criticality in CeCoIn5 : A study of 115In-NQR under pressure. / Yashima, M.; Kawasaki, S.; Kawasaki, Y.; Zheng, G. Q.; Kitaoka, Y.; Shishido, H.; Settai, R.; Haga, Y.; Onuki, Y.
In: Physica B: Condensed Matter, Vol. 359-361, No. SPEC. ISS., 30.04.2005, p. 404-406.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Unconventional superconductivity near the antiferromagnetic criticality in CeCoIn5
T2 - A study of 115In-NQR under pressure
AU - Yashima, M.
AU - Kawasaki, S.
AU - Kawasaki, Y.
AU - Zheng, G. Q.
AU - Kitaoka, Y.
AU - Shishido, H.
AU - Settai, R.
AU - Haga, Y.
AU - Onuki, Y.
PY - 2005/4/30
Y1 - 2005/4/30
N2 - We report on a systematic evolution of the superconducting (SC) characteristics of CeCoIn5 via nuclear-quadrupole-resonance (NQR) measurement under pressure (P). The application of P significantly suppresses the nuclear spin-lattice relaxation rate 1/T1 that is dominated by antiferromagnetic (AFM) spin fluctuations (SFs). The marked suppression of AFM SFs leads to the reduction in the size of SC energy gap. Nevertheless, Tc increases with the pressure due to the increase in HF bandwidth. This is expected to make the lifetime of quasi-particles sufficiently long.
AB - We report on a systematic evolution of the superconducting (SC) characteristics of CeCoIn5 via nuclear-quadrupole-resonance (NQR) measurement under pressure (P). The application of P significantly suppresses the nuclear spin-lattice relaxation rate 1/T1 that is dominated by antiferromagnetic (AFM) spin fluctuations (SFs). The marked suppression of AFM SFs leads to the reduction in the size of SC energy gap. Nevertheless, Tc increases with the pressure due to the increase in HF bandwidth. This is expected to make the lifetime of quasi-particles sufficiently long.
KW - NQR
KW - Pressure effect
KW - Superconductivity
UR - http://www.scopus.com/inward/record.url?scp=18144428682&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=18144428682&partnerID=8YFLogxK
U2 - 10.1016/j.physb.2005.01.080
DO - 10.1016/j.physb.2005.01.080
M3 - Article
AN - SCOPUS:18144428682
VL - 359-361
SP - 404
EP - 406
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - SPEC. ISS.
ER -