Rotational resonance echoes in the nuclear magnetic resonance of spinning solids
| Autor: | T. Karlsson, Michael Helmle, N.D. Kurur, Malcolm H. Levitt |
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| Předmět: |
Nuclear magnetic resonance
Spins Chemistry Pulsed EPR Scalar (mathematics) Relaxation (NMR) Spin echo General Physics and Astronomy Condensed Matter::Strongly Correlated Electrons Physical and Theoretical Chemistry Spin (physics) Two-dimensional nuclear magnetic resonance spectroscopy Pulse (physics) |
| Zdroj: | Scopus-Elsevier |
| Popis: | A procedure is described which leads to the reversal of the rotor driven evolution of nuclear spins at rotational resonance, inducing the formation of a new class of spin echoes. The echoes are produced by radio-frequency pulse sequences which suspend the evolution of the nuclear spin states for a finite fraction of a sample rotation period. Experimental demonstrations are given. The echoes may be exploited to extract scalar J-couplings and to investigate the relaxation behavior of coupled spins in a rotating powdered solid. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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