Microscopic measurements on the band 5f-metamagnetism in UCoAl
作者： Y Iwamoto , K Ueda , T Kohara , A.V Andreev , L Havela
DOI: 10.1016/S0304-8853(01)00312-2
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摘要: We have carried out 27Al nuclear magnetic resonance (NMR) and 59Co NMR quadrupole (NQR) measurements on UCoAl, which exhibits a meta-magnetic transition in small field (H∼1 T) at around 16 K. Besides signals, two kinds of 59Co-NQR signals corresponding to the inequivalent Co sites UCoAl were observed. The temperature dependence spin-lattice relaxation rate (T1−1) shows similar behavior exchange enhanced paramagnet Co(S1−xSex)2 with temperature-induced local moment discussed by spin fluctuation theory. field- temperature-dependence T1−1 spin–spin (T2−1) show strong anisotropy this compound.
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