Z. N. Volkova, V. P. Filonenko, R. Kh. Bagramov, I. P. Zibrov, N. M. Shchelkachev, G. D. Rybalov, V. V. Brazhkin
{"title":"13C and 11B NMR Spectroscopy of High-Pressure High-Temperature Boron-Doped Diamonds","authors":"Z. N. Volkova, V. P. Filonenko, R. Kh. Bagramov, I. P. Zibrov, N. M. Shchelkachev, G. D. Rybalov, V. V. Brazhkin","doi":"10.1134/S0021364025605834","DOIUrl":null,"url":null,"abstract":"<p>Diamond micropowders with a boron content of 1 and 2.5% that have been synthesized under high pressure and high temperature conditions and studied. The method of nuclear magnetic resonance on <sup>13</sup>C and <sup>11</sup>B nuclei has been used for a comparative analysis of boron-doped diamond and boron-doped graphite. It has been shown that the structure of diamonds with a high boron content is disordered and contains a significant amount of carbon with trigonal coordination. The main signal in the <sup>11</sup>B spectra of diamond microcrystals is due to the sum of contributions from single boron atoms with tetragonal and trigonal carbon environments. An additional signal in the spectra with a chemical shift of more than 60 ppm can be due to boron atoms in the areas of dislocation clusters, sub-boundaries, and other defective areas.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"121 7","pages":"583 - 588"},"PeriodicalIF":1.4000,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025605834.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"JETP Letters","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S0021364025605834","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Diamond micropowders with a boron content of 1 and 2.5% that have been synthesized under high pressure and high temperature conditions and studied. The method of nuclear magnetic resonance on 13C and 11B nuclei has been used for a comparative analysis of boron-doped diamond and boron-doped graphite. It has been shown that the structure of diamonds with a high boron content is disordered and contains a significant amount of carbon with trigonal coordination. The main signal in the 11B spectra of diamond microcrystals is due to the sum of contributions from single boron atoms with tetragonal and trigonal carbon environments. An additional signal in the spectra with a chemical shift of more than 60 ppm can be due to boron atoms in the areas of dislocation clusters, sub-boundaries, and other defective areas.
期刊介绍：
All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.
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