Resonance peak in Sr2RuO4:: Signature of spin triplet pairing

被引：40

作者：

Morr, DK

Trautman, PF

Graf, MJ

机构：

[1] Univ Calif Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[2] Baylor Univ, Waco, TX 76798 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.86.5978

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the dynamical spin susceptibility, chi (q,omega), in the normal and superconducting states of Sr2RuO4. In the normal state, we find a peak in the vicinity of Q(i) similar or equal to (0.72 pi, 0.72 pi) in agreement with recent inelastic neutron scattering experiments. We predict that for spin triplet pairing in the superconducting state a resonance peak appears in the out-of-plane component of chi, but is absent in the in-plane component. In contrast, no resonance peak is expected for spin singlet pairing.

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页码：5978 / 5981

页数：4

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