From metallic to insulating regime in Y-H(D) system:: 89Y NMR study

被引：7

作者：

Vuorimäki, AH

Ylinen, EE

Nowak, B

Zogal, OJ

机构：

[1] Polish Acad Sci, W Trzebiatowski Inst Low Temp & Struct Res, PL-50950 Wroclaw 2, Poland

[2] Turku Univ, Dept Phys, Wihuri Phys Lab, FIN-20014 Turku, Finland

来源：

SOLID STATE COMMUNICATIONS | 2002年 / 122卷 / 09期

关键词：

hydrides; nuclear resonances;

D O I：

10.1016/S0038-1098(02)00196-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report on the first observation of the Y-89 NMR signal in the hexagonal trideuteride phase YD2.98 at 14.7 MHz (7.04 T) and 302 K. In this phase the Y-89 nuclei are in an environment characterized by the shift tensor components delta(iso) = 361. delta(aniso) = 90 ppm and eta(s) approximate to 0.1. The spin-lattice relaxation time is estimated to be of the order of 7 x 10(3) s at 302 K. Magnetic measurements show that the magnetic susceptibility is small and diamagnetic in the temperature range 1.8-300 K. For comparison, the Y-89 NMR and susceptibility data for yttrium metal and its dideuteride phase YD1.99 are also given and discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.

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页码：469 / 472

页数：4

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