27Al NMR studies in grain-aligned PrNi2Al5

被引：1
|
作者：
Ghoshray, A. [1 ]
Sarkar, R. [1 ]
Pahari, B. [1 ]
Ghoshray, K. [1 ]
Bandyopadhyay, B. [1 ]
机构：
[1] Saha Inst Nucl Phys, ECMP Div, Kolkata 700064, W Bengal, India
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期
关键词：
knight shift; crystalline electric field; s-f exchange; PrNi2Al5;
D O I：
10.1016/j.jmmm.2006.10.079
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Al-27 Knight shift (K) in grain aligned PrNi2Al5 has been measured, in the temperature range 3.5-320 K, for two crystallographic non-equivalent Al sites. K becomes independent of temperature below 25 K in each case. chi(f)(T) for a Pr3+ ion in the orthorhombic crystal-field has been calculated to estimate the crystalline-electric-field (CEF) coefficients using K. The over-all crystal-field splitting (Delta) is 660K and CEF energy from the ground state to the first excited state is 45 K. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：371 / 373
页数：3
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