Positron Study of Electron Momentum Density and Fermi Surface in Titanium and Zirconium
Positron Study of Electron Momentum Density and Fermi Surface in Titanium and Zirconium
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钛和锆中电子动量密度和费米面的正电子研究
DOI：
10.1143/jpsj.58.3251
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发表时间：
1989
影响因子：
1.7
通讯作者：
N. Shiotani
中科院分区：
文献类型：
--
作者：
R. Suzuki;M. Osawa;S. Tanigawa;M. Matsumoto;N. Shiotani
通过测量正电子湮没辐射的二维角关联，并采用基于直接傅里叶变换的图像重建技术，获得了Ti和Zr表面的三维电子-正电子动量密度。计算了增强平面波的能带结构，并与实验结果进行了比较。实验和理论之间的协议导致的结论是，Ti和Zr都有电子表面片的中心在H和孔表面片的运行沿着的\（\varGamma\）-A轴。
The three dimensional electron-positron momentum densities have been obtained on Ti and Zr from measurements of two dimensional angular correlation of positron annihilation radiation followed by an image reconstruction technique based on direct Fourier transformation. Augmented-plane wave band structure calculations have been carried out and the results are compared with the experiments. Agreement between the experiment and the theory leads to a conclusion that both Ti and Zr have electron surface sheets which are centered at H and hole surface sheets which are running along the \(\varGamma\)-A axis.