Dynamic nuclear polarization with simultaneous excitation of electronic and nuclear transitions

Journal article

Dynamic nuclear polarization transfers spin polarization from electrons to nuclei. We have achieved this by a new method, simultaneously exciting transitions of electronic and nuclear spins. The efficiency of this technique improves with increasing magnetic field. Experimental results are shown for N@C 60 with continuous-wave microwaves, which can be expected to produce even higher polarization than the corresponding pulsed techniques for electron spins greater than 1/2. The degree of nuclear polarization in this case can be easily monitored through the intensities of the well-resolved hyperfine components in the electron paramagnetic resonance spectrum. The nuclear spin-lattice relaxation time is orders of magnitude longer than that of the electrons. © 2008 Springer-Verlag.

Authors: Morley, G; Porfyrakis, K; Ardavan, A; Van Tol, J

• Journal: Applied Magnetic Resonance
• Volume: 34
• Issue: 3-4
• Pages: 347-353
• Publication date: 2008-08-01
• DOI: 10.1007/s00723-008-0112-x
• ISSN: 0937-9347
• Language: English