dorsal/arxiv
View SchemaA new mechanism for electron spin echo envelope modulation
| Authors | John J. L. Morton, Alexei M. Tyryshkin, Arzhang Ardavan, Kyriakos Porfyrakis, Stephen A. Lyon, G. Andrew D. Briggs |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0412002 |
| URL | https://arxiv.org/abs/quant-ph/0412002 |
| DOI | 10.1063/1.1888585 |
| Journal | J. Chem. Phys. 122, 174504 (2005) |
Abstract
Electron spin echo envelope modulation (ESEEM) has been observed for the first time from a coupled hetero-spin pair of electron and nucleus in liquid solution. Previously, modulation effects in spin echo experiments have only been described in liquid solutions for a coupled pair of homonuclear spins in NMR or a pair of resonant electron spins in EPR. We observe low-frequency ESEEM (26 and 52 kHz) due to a new mechanism present for any electron spin with S>1/2 that is hyperfine coupled to a nuclear spin. In our case these are electron spin (S=3/2) and nuclear spin (I=1) in the endohedral fullerene N@C60. The modulation is shown to arise from second order effects in the isotropic hyperfine coupling of an electron and 14N nucleus.
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"abstract": "Electron spin echo envelope modulation (ESEEM) has been observed for the\nfirst time from a coupled hetero-spin pair of electron and nucleus in liquid\nsolution. Previously, modulation effects in spin echo experiments have only\nbeen described in liquid solutions for a coupled pair of homonuclear spins in\nNMR or a pair of resonant electron spins in EPR. We observe low-frequency ESEEM\n(26 and 52 kHz) due to a new mechanism present for any electron spin with S\u003e1/2\nthat is hyperfine coupled to a nuclear spin. In our case these are electron\nspin (S=3/2) and nuclear spin (I=1) in the endohedral fullerene N@C60. The\nmodulation is shown to arise from second order effects in the isotropic\nhyperfine coupling of an electron and 14N nucleus.",
"arxiv_id": "quant-ph/0412002",
"authors": [
"John J. L. Morton",
"Alexei M. Tyryshkin",
"Arzhang Ardavan",
"Kyriakos Porfyrakis",
"Stephen A. Lyon",
"G. Andrew D. Briggs"
],
"categories": [
"quant-ph"
],
"doi": "10.1063/1.1888585",
"journal_ref": "J. Chem. Phys. 122, 174504 (2005)",
"title": "A new mechanism for electron spin echo envelope modulation",
"url": "https://arxiv.org/abs/quant-ph/0412002"
},
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