TY - JOUR
T1 - Superconductivity and pseudogap states in λ-(BEDT-TSF) 2 GaCl 4
T2 - Microwave conductivity measurements
AU - Suzuki, T.
AU - Negishi, E.
AU - Uozaki, H.
AU - Matsui, H.
AU - Toyota, N.
PY - 2006/2
Y1 - 2006/2
N2 - We have investigated the 45 GHz microwave response from an organic superconductor λ-(BEDT-TSF) 2GaCl 4 with T c = 4.8 K. In the superconducting state, the London penetration depth saturates well below T c, which may provide an evidence for a conventional s-wave paring. In the metallic state, σ 1 c deviates downward from σ dc c, while σ 2 c, which should be zero in a conventional metallic state, increases exponentially toward T c. This anomalous metallic state has been discussed in terms of a possible formation of incoherent electron pairs in so-called a pseudogap state.
AB - We have investigated the 45 GHz microwave response from an organic superconductor λ-(BEDT-TSF) 2GaCl 4 with T c = 4.8 K. In the superconducting state, the London penetration depth saturates well below T c, which may provide an evidence for a conventional s-wave paring. In the metallic state, σ 1 c deviates downward from σ dc c, while σ 2 c, which should be zero in a conventional metallic state, increases exponentially toward T c. This anomalous metallic state has been discussed in terms of a possible formation of incoherent electron pairs in so-called a pseudogap state.
KW - 74.25.Nf
KW - 74.70.Kn
UR - http://www.scopus.com/inward/record.url?scp=34447618203&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34447618203&partnerID=8YFLogxK
U2 - 10.1007/s10909-006-9165-0
DO - 10.1007/s10909-006-9165-0
M3 - Article
AN - SCOPUS:34447618203
SN - 0022-2291
VL - 142
SP - 571
EP - 575
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
IS - 3-4
ER -