期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2014
卷号：111
期号：32
页码：11658-11662
DOI：10.1073/pnas.1407716111
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：We report on a theoretical study of spin-dependent electron transport through single-helical molecules connected by two nonmagnetic electrodes, and explain the experiment of significant spin-selective phenomenon observed in -helical protein and the contradictory results between the protein and single-stranded DNA. Our results reveal that the -helical protein is an efficient spin filter and the spin polarization is robust against the disorder. These results are in excellent agreement with recent experiments [Mishra D, et al. (2013) Proc Natl Acad Sci USA 110(37):14872-14876; Gohler B, et al. (2011) Science 331(6019):894-897] and may facilitate engineering of chiral-based spintronic devices.
