Pinning down the pairing symmetry of heavy-fermion compound CeIrIn5

被引：1
作者：
Kasahara, Y. [1 ,4 ]
Iwasawa, T. [1 ]
Shimizu, Y. [1 ,5 ]
Shishido, H. [1 ]
Shibauchi, T. [1 ]
Vekhter, I. [2 ]
Matsuda, Y. [1 ,3 ]
机构：
[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[2] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA
[3] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan
[4] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan
[5] Hokkaido Univ, Dept Phys, Sapporo, Hokkaido 0600810, Japan
来源：
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 5: SUPERCONDUCTIVITY | 2009年 / 150卷
关键词：
SUPERCONDUCTIVITY;
D O I：
10.1088/1742-6596/150/5/052097
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
From the thermal transport measurements in rotating magnetic fields H, we pinned down the superconducting gap structure of CeIrIn5. Clear fourfold oscillation was observed when H is rotated within the ab-plane, while no discernible oscillation was observed within the bc-plane. In sharp contrast to previous reports, our results are most consistent with d(x2-y2) symmetry, implying that the superconductivity of CeIrIn5 is mediated by antiferromagnetic spin fluctuations as well as that of CeRhIn5 and CeCoIn5.
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页数：4
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