ABSENCE OF THE ANOMALOUS 2ND LENGTH SCALE IN THE BULK OF A TERBIUM SINGLE-CRYSTAL

被引：16

作者：

GEHRING, PM ^{[1
]}

HIROTA, K ^{[1
]}

MAJKRZAK, CF ^{[1
]}

SHIRANE, G ^{[1
]}

机构：

[1] BROOKHAVEN NATL LAB,UPTON,NY 11973

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.51.3234

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recent neutron studies of the magnetic critical fluctuations in Tb show that the scattering intensity from the second length scale is strongly enhanced over a 200 m thick region near the surface of the crystal. A fundamental question that remains, however, is whether or not this second length scale is an intrinsic property of the bulk. Using a new, much larger cube-shaped Tb crystal, we are able to mask the scattered neutron beam such that contributions form the near-surface regions never reach the detector. Under these conditions, we find no evidence of the second length scale. © 1995 The American Physical Society.

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页码：3234 / 3237

页数：4

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