{"OA_type":"closed access","author":[{"full_name":"Garner, Marc H.","first_name":"Marc H.","last_name":"Garner"},{"full_name":"Li, Haixing","first_name":"Haixing","last_name":"Li"},{"last_name":"Chen","first_name":"Yan","full_name":"Chen, Yan"},{"last_name":"Su","first_name":"Timothy A.","full_name":"Su, Timothy A."},{"full_name":"Shangguan, Zhichun","first_name":"Zhichun","last_name":"Shangguan"},{"full_name":"Paley, Daniel W.","first_name":"Daniel W.","last_name":"Paley"},{"last_name":"Liu","first_name":"Taifeng","full_name":"Liu, Taifeng"},{"first_name":"Fay","last_name":"Ng","full_name":"Ng, Fay"},{"first_name":"Hexing","last_name":"Li","full_name":"Li, Hexing"},{"last_name":"Xiao","first_name":"Shengxiong","full_name":"Xiao, Shengxiong"},{"full_name":"Nuckolls, Colin","last_name":"Nuckolls","first_name":"Colin"},{"last_name":"Venkataraman","first_name":"Latha","orcid":"0000-0002-6957-6089","id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","full_name":"Venkataraman, Latha"},{"last_name":"Solomon","first_name":"Gemma C.","full_name":"Solomon, Gemma C."}],"language":[{"iso":"eng"}],"publication_identifier":{"eissn":["1476-4687"],"issn":["0028-0836"]},"oa_version":"None","volume":558,"article_processing_charge":"No","issue":"7710","publisher":"Springer Nature","intvolume":"       558","title":"Comprehensive suppression of single-molecule conductance using destructive σ-interference","quality_controlled":"1","article_type":"letter_note","doi":"10.1038/s41586-018-0197-9","publication_status":"published","scopus_import":"1","_id":"17931","citation":{"ista":"Garner MH, Li H, Chen Y, Su TA, Shangguan Z, Paley DW, Liu T, Ng F, Li H, Xiao S, Nuckolls C, Venkataraman L, Solomon GC. 2018. Comprehensive suppression of single-molecule conductance using destructive σ-interference. Nature. 558(7710), 415–419.","apa":"Garner, M. H., Li, H., Chen, Y., Su, T. A., Shangguan, Z., Paley, D. W., … Solomon, G. C. (2018). Comprehensive suppression of single-molecule conductance using destructive σ-interference. <i>Nature</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41586-018-0197-9\">https://doi.org/10.1038/s41586-018-0197-9</a>","ieee":"M. H. Garner <i>et al.</i>, “Comprehensive suppression of single-molecule conductance using destructive σ-interference,” <i>Nature</i>, vol. 558, no. 7710. Springer Nature, pp. 415–419, 2018.","mla":"Garner, Marc H., et al. “Comprehensive Suppression of Single-Molecule Conductance Using Destructive σ-Interference.” <i>Nature</i>, vol. 558, no. 7710, Springer Nature, 2018, pp. 415–19, doi:<a href=\"https://doi.org/10.1038/s41586-018-0197-9\">10.1038/s41586-018-0197-9</a>.","ama":"Garner MH, Li H, Chen Y, et al. Comprehensive suppression of single-molecule conductance using destructive σ-interference. <i>Nature</i>. 2018;558(7710):415-419. doi:<a href=\"https://doi.org/10.1038/s41586-018-0197-9\">10.1038/s41586-018-0197-9</a>","chicago":"Garner, Marc H., Haixing Li, Yan Chen, Timothy A. Su, Zhichun Shangguan, Daniel W. Paley, Taifeng Liu, et al. “Comprehensive Suppression of Single-Molecule Conductance Using Destructive σ-Interference.” <i>Nature</i>. Springer Nature, 2018. <a href=\"https://doi.org/10.1038/s41586-018-0197-9\">https://doi.org/10.1038/s41586-018-0197-9</a>.","short":"M.H. Garner, H. Li, Y. Chen, T.A. Su, Z. Shangguan, D.W. Paley, T. Liu, F. Ng, H. Li, S. Xiao, C. Nuckolls, L. Venkataraman, G.C. Solomon, Nature 558 (2018) 415–419."},"extern":"1","date_updated":"2024-12-11T08:51:55Z","year":"2018","date_published":"2018-06-06T00:00:00Z","publication":"Nature","date_created":"2024-09-09T08:17:04Z","external_id":{"pmid":["29875407"]},"abstract":[{"lang":"eng","text":"The tunnelling of electrons through molecules (and through any nanoscale insulating and dielectric material1) shows exponential attenuation with increasing length2, a length dependence that is reflected in the ability of the electrons to carry an electrical current. It was recently demonstrated3,4,5 that coherent tunnelling through a molecular junction can also be suppressed by destructive quantum interference6, a mechanism that is not length-dependent. For the carbon-based molecules studied previously, cancelling all transmission channels would involve the suppression of contributions to the current from both the π-orbital and σ-orbital systems. Previous reports of destructive interference have demonstrated a decrease in transmission only through the π-channel. Here we report a saturated silicon-based molecule with a functionalized bicyclo[2.2.2]octasilane moiety that exhibits destructive quantum interference in its σ-system. Although molecular silicon typically forms conducting wires7, we use a combination of conductance measurements and ab initio calculations to show that destructive σ-interference, achieved here by locking the silicon–silicon bonds into eclipsed conformations within a bicyclic molecular framework, can yield extremely insulating molecules less than a nanometre in length. Our molecules also exhibit an unusually high thermopower (0.97 millivolts per kelvin), which is a further experimental signature of the suppression of all tunnelling paths by destructive interference: calculations indicate that the central bicyclo[2.2.2]octasilane unit is rendered less conductive than the empty space it occupies. The molecular design presented here provides a proof-of-concept for a quantum-interference-based approach to single-molecule insulators."}],"page":"415-419","day":"06","pmid":1,"type":"journal_article","status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"06"}