抄録
To identify the superconducting gap structure in URu2Si2, we perform field-angle-dependent specific heat measurements for the two principal orientations in addition to field rotations, and a theoretical analysis based on microscopic calculations. The Sommerfeld coefficient γ(H)'s in the mixed state exhibit a distinctly different field dependence. This comes from point nodes and the substantial Pauli paramagnetic effect of URu2Si2. These two features combined give rise to a consistent picture of superconducting properties, including a possible first order transition of Hc2 at low temperatures.
本文言語 | 英語 |
---|---|
論文番号 | 017004 |
ジャーナル | Physical Review Letters |
巻 | 100 |
号 | 1 |
DOI | |
出版ステータス | 出版済み - 2008/01/10 |
ASJC Scopus 主題領域
- 物理学および天文学一般