Nuclear Spin Relaxation Anomaly in Small Copper Particles
Nuclear Spin Relaxation Anomaly in Small Copper Particles
复制标题
小铜颗粒中的核自旋弛豫异常
DOI：
10.1143/jpsj.58.3788
复制
发表时间：
1989
影响因子：
1.7
通讯作者：
Shun–ichi Kobayashi
中科院分区：
文献类型：
--
作者：
T. Goto;F. Komori;Shun–ichi Kobayashi
Anomalously long nuclear spin-lattice relaxation time was observed at low temperatures below 0.5 K in small metallic particles of copper with diameters smaller than 100 A by a new method for setting the nuclear magnetization to zero. The observed anomaly is in accordance with what is expected for very small metals in which the spacing of energy levels of conduction electrons is much larger than the life time broadening of the levels. The new method was indispensable to observe the intrinsic relaxation time in copper particles where the electric quadrupole broadening of the nuclear magnetic resonance was huge.
