The spin echo in systems with a coupled electron-nuclear precession
A.S. Borovik-Romanov,
Yu.M. Bunkov a,
B.S. Dumesh b,
M.I. Kurkin,
M.P. Petrov c,
V.P. Chekmarev
a Institut Néel, Grenoble, France
b Institute of Spectroscopy, Russian Academy of Sciences, ul. Fizicheskaya 5, Troitsk, Moscow, 108840, Russian Federation
c Ioffe Institute, ul. Polytekhnicheskaya 26, St. Petersburg, 194021, Russian Federation
I. Introduction 235 II. Theoretical concepts 237 1. Basic aspects of NMR in magnetic crystals. 2. Dynamics of nuclear magnetization with a dynamic frequency shift in a transverse rf field. 3. Induction and echo. 4. Frequency-modulated echo. III. Experimental research 244 5. Measurement methods. 6. Magnetically ordered crystals which have been studied. 7. Free-induction signal. 8. Spin-echo signals. 9. Spin systems with a small dynamic NMR frequency shift. 10. Dynamic NMR frequency shift of nuclei in domain walls. IV. Conclusion 253 References 254
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