Host isotope mass effects on the hyperfine interaction of group-V donors in silicon
Host isotope mass effects on the hyperfine interaction of group-V donors in silicon
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DOI：
10.1103/physrevb.90.121203
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发表时间：
2014-07
影响因子：
3.7
通讯作者：
T. Sekiguchi;A. Tyryshkin;S. Tojo;E. Abe;R. Mori;H. Riemann;N. Abrosimov;P. Becker;H. Pohl;J. Ager;E. Haller;M. Thewalt;J. Morton;S. Lyon;K. Itoh
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文献类型：
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作者：
T. Sekiguchi;A. Tyryshkin;S. Tojo;E. Abe;R. Mori;H. Riemann;N. Abrosimov;P. Becker;H. Pohl;J. Ager;E. Haller;M. Thewalt;J. Morton;S. Lyon;K. Itoh
通过对同位素工程Si单晶的脉冲电子核双共振（ENDOR）谱研究，揭示了硅中V族施主的超精细相互作用受宿主同位素质量的影响.每个超精细分裂的P-31，As-75，Sb-121，Sb-123和Bi-209 ENDOR线进一步分裂成多个分量，其相对强度精确地匹配由于三种稳定同位素Si-28，Si-29和Si-30的随机占据而导致的四个最近邻位点中九种可能的平均Si质量的统计似然性。用P-31供体的进一步研究表明，分辨的ENDOR分量随体平均Si质量线性偏移。
The effects of host isotope mass on the hyperfine interaction of group-V donors in silicon are revealed by pulsed electron nuclear double resonance (ENDOR) spectroscopy of isotopically engineered Si single crystals. Each of the hyperfine-split P-31, As-75, Sb-121, Sb-123, and Bi-209 ENDOR lines splits further into multiple components, whose relative intensities accurately match the statistical likelihood of the nine possible average Si masses in the four nearest-neighbor sites due to random occupation by the three stable isotopes Si-28, Si-29, and Si-30. Further investigation with P-31 donors shows that the resolved ENDOR components shift linearly with the bulk-averaged Si mass.