Davies electron-nuclear double resonance revisited: enhanced sensitivity and nuclear spin relaxation.
Over the past 50 years, electron-nuclear double resonance (ENDOR) has become a fairly ubiquitous spectroscopic technique, allowing the study of spin transitions for nuclei which are coupled to electron spins. However, the low spin number sensitivity of the technique continues to pose serious limitat...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2006
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| _version_ | 1797071208914616320 |
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| author | Tyryshkin, A Morton, J Ardavan, A Lyon, SA |
| author_facet | Tyryshkin, A Morton, J Ardavan, A Lyon, SA |
| author_sort | Tyryshkin, A |
| collection | OXFORD |
| description | Over the past 50 years, electron-nuclear double resonance (ENDOR) has become a fairly ubiquitous spectroscopic technique, allowing the study of spin transitions for nuclei which are coupled to electron spins. However, the low spin number sensitivity of the technique continues to pose serious limitations. Here we demonstrate that signal intensity in a pulsed Davies ENDOR experiment depends strongly on the nuclear relaxation time T(1n), and can be severely reduced for long T(1n). We suggest a development of the original Davies ENDOR sequence that overcomes this limitation, thus offering dramatically enhanced signal intensity and spectral resolution. Finally, we observe that the sensitivity of the original Davies method to T(1n) can be exploited to measure nuclear relaxation, as we demonstrate for phosphorous donors in silicon and for endohedral fullerenes N@C(60) in CS(2). |
| first_indexed | 2024-03-06T22:50:02Z |
| format | Journal article |
| id | oxford-uuid:5e745906-b805-4d0e-9459-5ca9cb7accad |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:50:02Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:5e745906-b805-4d0e-9459-5ca9cb7accad2022-03-26T17:40:57ZDavies electron-nuclear double resonance revisited: enhanced sensitivity and nuclear spin relaxation.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5e745906-b805-4d0e-9459-5ca9cb7accadEnglishSymplectic Elements at Oxford2006Tyryshkin, AMorton, JArdavan, ALyon, SAOver the past 50 years, electron-nuclear double resonance (ENDOR) has become a fairly ubiquitous spectroscopic technique, allowing the study of spin transitions for nuclei which are coupled to electron spins. However, the low spin number sensitivity of the technique continues to pose serious limitations. Here we demonstrate that signal intensity in a pulsed Davies ENDOR experiment depends strongly on the nuclear relaxation time T(1n), and can be severely reduced for long T(1n). We suggest a development of the original Davies ENDOR sequence that overcomes this limitation, thus offering dramatically enhanced signal intensity and spectral resolution. Finally, we observe that the sensitivity of the original Davies method to T(1n) can be exploited to measure nuclear relaxation, as we demonstrate for phosphorous donors in silicon and for endohedral fullerenes N@C(60) in CS(2). |
| spellingShingle | Tyryshkin, A Morton, J Ardavan, A Lyon, SA Davies electron-nuclear double resonance revisited: enhanced sensitivity and nuclear spin relaxation. |
| title | Davies electron-nuclear double resonance revisited: enhanced sensitivity and nuclear spin relaxation. |
| title_full | Davies electron-nuclear double resonance revisited: enhanced sensitivity and nuclear spin relaxation. |
| title_fullStr | Davies electron-nuclear double resonance revisited: enhanced sensitivity and nuclear spin relaxation. |
| title_full_unstemmed | Davies electron-nuclear double resonance revisited: enhanced sensitivity and nuclear spin relaxation. |
| title_short | Davies electron-nuclear double resonance revisited: enhanced sensitivity and nuclear spin relaxation. |
| title_sort | davies electron nuclear double resonance revisited enhanced sensitivity and nuclear spin relaxation |
| work_keys_str_mv | AT tyryshkina davieselectronnucleardoubleresonancerevisitedenhancedsensitivityandnuclearspinrelaxation AT mortonj davieselectronnucleardoubleresonancerevisitedenhancedsensitivityandnuclearspinrelaxation AT ardavana davieselectronnucleardoubleresonancerevisitedenhancedsensitivityandnuclearspinrelaxation AT lyonsa davieselectronnucleardoubleresonancerevisitedenhancedsensitivityandnuclearspinrelaxation |