Fine Particle Size Effect of Metallic Al
Fine Particle Size Effect of Metallic Al
复制标题
金属铝的细粒度效应
DOI：
10.1143/jpsj.31.1442
复制
发表时间：
1971
影响因子：
1.7
通讯作者：
W. Sasaki
中科院分区：
文献类型：
--
作者：
Shun–ichi Kobayashi;Toshihiro Takahashi;W. Sasaki
用核磁共振和低温磁化率测量方法研究了直径小于100的金属Al微粒，验证了导电电子的分立能级效应。在核磁共振谱线形状中观察到奇数和偶数电子粒子的不同行为。奇数粒子倾向于具有高顺磁性磁化率，而偶数粒子倾向于零顺磁性。在细颗粒中没有观察到明显的超导转变温度的提高。还对Cu颗粒进行了一些测量，以与Al颗粒进行比较。
Metallic fine particles of Al with diameters of less than 100 A are studied by NMR and magnetic susceptibility measurements at low temperatures to verify discrete energy level effect of conduction electrons. Different behaviors of particles with odd and even electron numbers are observed in NMR line shapes. Odd particles tend to have high paramagnetic susceptibility while even particles tend to zero paramagnetism. No appreciable enhancement of superconducting transition temperature is observed in fine particles. Some measurements of Cu particles are also carried out to be compared with Al particles.