Abstract
Superconductors with noncentrosymmetric crystal structures such as Li 2T3B(T:Pd,Pt) have been the focus of in-depth research with their parity mixing nature. In this study, we focused our research on non-magnetic impurity effect in Li2T3B(T:Pd,Pt). The nature of the pair breaking by non-magnetic impurity in the parity mixing superconducting state is still unclear. We prepared different quality samples of Li2Pd3B and Li2Pt3B by changing conditions in synthesizing, and sample qualities were estimated by residual resistivity. Spin singlet dominant superconductor Li2Pd3B exhibits the weak Tc suppression attributed by non-magnetic impurity and defects, while Hc2 (0) value increased. This behavior is similar in ordinary s-wave superconductor. On the other hand, for the spin triplet dominant superconductor Li2Pt3B, it was suggested that the Cooper pair was broken and superconducting gap was decreased by non-magnetic impurities and defects. Li2Pt3B is similar to unconventional superconducting state.
| Original language | English |
|---|---|
| Pages (from-to) | 95-98 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 494 |
| DOIs | |
| Publication status | Published - 2013 |
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Keywords
- Li PdB
- LiPtB
- Non-magnetic impurity effect
- Parity mixing superconductor
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Energy Engineering and Power Technology
- Electronic, Optical and Magnetic Materials
Cite this
Influence on superconductivity in the parity mixing superconductor Li 2T3B(T : Pt,Pd) by non-magnetic impurity and defect doping. / Bao, G.; Inada, Yoshihiko; Eguchi, G.; Maeno, Y.; Ichioka, Masanori; Zheng, Guo-Qing.
In: Physica C: Superconductivity and its Applications, Vol. 494, 2013, p. 95-98.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence on superconductivity in the parity mixing superconductor Li 2T3B(T
T2 - Pt,Pd) by non-magnetic impurity and defect doping
AU - Bao, G.
AU - Inada, Yoshihiko
AU - Eguchi, G.
AU - Maeno, Y.
AU - Ichioka, Masanori
AU - Zheng, Guo-Qing
PY - 2013
Y1 - 2013
N2 - Superconductors with noncentrosymmetric crystal structures such as Li 2T3B(T:Pd,Pt) have been the focus of in-depth research with their parity mixing nature. In this study, we focused our research on non-magnetic impurity effect in Li2T3B(T:Pd,Pt). The nature of the pair breaking by non-magnetic impurity in the parity mixing superconducting state is still unclear. We prepared different quality samples of Li2Pd3B and Li2Pt3B by changing conditions in synthesizing, and sample qualities were estimated by residual resistivity. Spin singlet dominant superconductor Li2Pd3B exhibits the weak Tc suppression attributed by non-magnetic impurity and defects, while Hc2 (0) value increased. This behavior is similar in ordinary s-wave superconductor. On the other hand, for the spin triplet dominant superconductor Li2Pt3B, it was suggested that the Cooper pair was broken and superconducting gap was decreased by non-magnetic impurities and defects. Li2Pt3B is similar to unconventional superconducting state.
AB - Superconductors with noncentrosymmetric crystal structures such as Li 2T3B(T:Pd,Pt) have been the focus of in-depth research with their parity mixing nature. In this study, we focused our research on non-magnetic impurity effect in Li2T3B(T:Pd,Pt). The nature of the pair breaking by non-magnetic impurity in the parity mixing superconducting state is still unclear. We prepared different quality samples of Li2Pd3B and Li2Pt3B by changing conditions in synthesizing, and sample qualities were estimated by residual resistivity. Spin singlet dominant superconductor Li2Pd3B exhibits the weak Tc suppression attributed by non-magnetic impurity and defects, while Hc2 (0) value increased. This behavior is similar in ordinary s-wave superconductor. On the other hand, for the spin triplet dominant superconductor Li2Pt3B, it was suggested that the Cooper pair was broken and superconducting gap was decreased by non-magnetic impurities and defects. Li2Pt3B is similar to unconventional superconducting state.
KW - Li PdB
KW - LiPtB
KW - Non-magnetic impurity effect
KW - Parity mixing superconductor
UR - http://www.scopus.com/inward/record.url?scp=84884812778&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84884812778&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2013.04.059
DO - 10.1016/j.physc.2013.04.059
M3 - Article
AN - SCOPUS:84884812778
VL - 494
SP - 95
EP - 98
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
ER -