Spin dynamics in CeNiSn and Ce0.85La0.15NiSn at very low temperatures

被引：24

作者：

Kalvius, G. M. ^{[1
]}

Kratzer, A. ^{[1
]}

Wappling, R. ^{[2
]}

Takabatake, T. ^{[3
]}

Nakamoto, G. ^{[3
]}

Fujii, H. ^{[3
]}

Kiefl, R. F. ^{[4
,5
]}

Kreitzmann, S. R. ^{[4
,5
]}

机构：

[1] Tech Univ Munich, Dept Phys, D-85747 Garching, Germany

[2] Univ Uppsala, Dept Phys, S-75121 Uppsala, Sweden

[3] Hiroshima Univ, Fac Integrated Arts & Sci, Higashihiroshima 724, Japan

[4] UBC, TRIUMF, Vancouver, BC V6T 2A3, Canada

[5] UBC, Dept Phys, Vancouver, BC V6T 2A3, Canada

来源：

PHYSICA B-CONDENSED MATTER | 1995年 / 206卷

关键词：

D O I：

10.1016/0921-4526(94)00591-I

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We performed muon spin rotation/relaxation (mu SR) studies on polycrystalline and single crystalline samples of CeNiSn. The system appears to be a dense system of weak magnetic moments with no evidence for static magnetic order down to 11 mK, the lowest temperature studied. In contrast, the spin system retains slow dynamics; it fluctuates at a rate of similar to 10(-7) s at the base temperature. These remaining fluctuations may be related to the absence of long range magnetic order. Results for polycrystalline Ce0.85La0.15NiSn show even weaker magnetic effects than those in pure CeNiSn, negating the notion that a partial replacement of Ce by La leads to enhanced magnetism and even magnetic order.

引用

页码：807 / 809

页数：3

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