Neutron-scattering study of the magnetic response in the heavy-fermion superconductor UNi2Al3

被引：21

作者：

Aso, N

Roessli, B

Bernhoeft, N

Calemczuk, R

Sato, NK

Endoh, Y

Komatsubara, T

Hiess, A

Lander, GH

Kadowaki, H

机构：

[1] Tohoku Univ, Grad Sch Sci, Dept Phys, Sendai, Miyagi 9808578, Japan

[2] ETH Zurich, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

[3] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[4] CEA, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble, France

[5] Tohoku Univ, Grad Sch Sci, Dept Phys, Sendai, Miyagi 9808578, Japan

[6] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

[7] Commiss European Communities, Joint Res Ctr, Inst Transuranium Elements, D-76125 Karlsruhe, Germany

[8] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan

[9] Max Planck Inst Chem Phys Fester Stoffe, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.61.R11867

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-resolution neutron inelastic scattering has been used to probe the magnetic response in the heavy-fermion superconductor UNi2Al3 Quasielastic scattering has been observed both below and above T-c in the vicinity of the incommensurate magnetic ordering vector Q(o)=(0.39,0,0.5). Features in the response are similar to those reported recently for the isostructural compound UPd2Al3. However, in contrast to the situation in UPd2Al3, no spectral gap has been observed in the dynamical susceptibility of UNi2Al3, even at the lowest temperature of 0.2 K.

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页码：11867 / 11870

页数：4

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