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Electron spin-echo (ESE) spectroscopy definition
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A pulsed technique in electron paramagnetic resonance, in some ways analogous to pulsed techniques in NMR. ESE may be used for measurements of electron spin relaxation times as they are influenced by neighbouring paramagnets or molecular motion. It may also be used to measure anisotropicnuclear hyperfine couplings. The effect is known as electron spin-echo envelope modulation (ESEEM) . The intensity of the electron spin-echo resulting from the application of two or more microwave pulses is measured as a function of the temporal spacing between the pulses. The echo intensity is modulated as a result of interactions with the nuclear spins. The frequency-domain spectrum corresponds to hyperfine transition frequenc

See also:
electron-deficient bond definition
electron beam lithography definition
Electrolyte definition
-effect definition
+ electron-donor-acceptor complex definition
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