NMR and NQR studies of UCoAl with 5f-band metamagnetism

NMR and NQR studies of UCoAl with 5f-band metamagnetism
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UCoAl 5f 波段超磁性的 NMR 和 NQR 研究

DOI:
10.1016/s0304-8853(97)00963-3
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发表时间:
1998
影响因子:
2.7
通讯作者:
V. Sechovský
V. Sechovský
中科院分区:
材料科学3区
文献类型:
--
作者:
Y. Iwamoto;K. Ueda;T. Kohara;A. Andreev;L. Havela;V. Sechovský

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我们对UCoAl中的27 Al和59 Co进行了NMR和NQR测量,在16 K以下0.8 T的小磁场下,UCoAl中发生了亚磁跃迁。在77 K下,在2.4 ~ 5 T的外场下,固定频率为40 MHz,观测到了27 Al和59 Co两种NMR信号。在1.4 ~ 100 K范围内测量了~(59)Co核四极共振器的核自旋-晶格弛豫速率随温度的变化。
We have carried out NMR and NQR measurements of27Al and59Co in UCoAl, in which occurs a meta-magnetic transition in a small magnetic field of 0.8 T below 16 K.27Al NMR signal and two kinds of59Co NMR signals were observed under an external field from 2.4 to 5 T with a fixed frequency of 40 MHZ at 77 K. The temperature dependence of the nuclear spin-lattice relaxation rate in59Co NQR was also measured from 1.4 to 100 K.