Abstract
In order to determine the superconducting gap structure of the borocarbide superconductor YNi2B2C, we have measured the angular variation of the c-axis thermal conductivity κzz in magnetic field rotated within the ab-planes. A clear fourfold symmetry with narrow cusps was observed in the angular variation of κzz. These results provide a strong evidence that the gap function has point nodes which are located along the a- and b-axes of the crystal.
| Original language | English |
|---|---|
| Pages (from-to) | 185-186 |
| Number of pages | 2 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 388-389 |
| DOIs | |
| Publication status | Published - May 2003 |
| Externally published | Yes |
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Keywords
- Borocarbides
- Superconducting gap structure
- Thermal conductivity
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Evidence of point nodes in superconducting gap of borocarbide superconductor YNi2B2C. / Kamata, K.; Izawa, K.; Nakajima, Y.; Matsuda, Y.; Watanabe, T.; Nohara, Minoru; Takagi, H.; Takeya, H.; Hirata, K.; Thalmeier, P.; Maki, K.
In: Physica C: Superconductivity and its Applications, Vol. 388-389, 05.2003, p. 185-186.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Evidence of point nodes in superconducting gap of borocarbide superconductor YNi2B2C
AU - Kamata, K.
AU - Izawa, K.
AU - Nakajima, Y.
AU - Matsuda, Y.
AU - Watanabe, T.
AU - Nohara, Minoru
AU - Takagi, H.
AU - Takeya, H.
AU - Hirata, K.
AU - Thalmeier, P.
AU - Maki, K.
PY - 2003/5
Y1 - 2003/5
N2 - In order to determine the superconducting gap structure of the borocarbide superconductor YNi2B2C, we have measured the angular variation of the c-axis thermal conductivity κzz in magnetic field rotated within the ab-planes. A clear fourfold symmetry with narrow cusps was observed in the angular variation of κzz. These results provide a strong evidence that the gap function has point nodes which are located along the a- and b-axes of the crystal.
AB - In order to determine the superconducting gap structure of the borocarbide superconductor YNi2B2C, we have measured the angular variation of the c-axis thermal conductivity κzz in magnetic field rotated within the ab-planes. A clear fourfold symmetry with narrow cusps was observed in the angular variation of κzz. These results provide a strong evidence that the gap function has point nodes which are located along the a- and b-axes of the crystal.
KW - Borocarbides
KW - Superconducting gap structure
KW - Thermal conductivity
UR - http://www.scopus.com/inward/record.url?scp=17144457612&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=17144457612&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(02)02719-3
DO - 10.1016/S0921-4534(02)02719-3
M3 - Article
AN - SCOPUS:17144457612
VL - 388-389
SP - 185
EP - 186
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
ER -