Cross relaxation of12B in single-crystal aluminium
Jäger, E. ; Ittermann, B. ; Sulzer, G. ; Bürkmann, K. ; Fischer, B. ; Frank, H. P. ; Stöckmann, H. J. ; Ackermann, H.
Springer
Published 1990
Springer
Published 1990
| ISSN: |
1434-6036
|
|---|---|
| Source: |
Springer Online Journal Archives 1860-2000
|
| Topics: |
Physics
|
| Notes: |
Abstract The dipole-dipole interaction of extremely diluted probe nuclei with their surrounding host nuclei gives rise to mutual flip-flop processes of the nuclear spins. As energy has to be conserved in this so-called cross-relaxation (CR) process a transfer of polarization from the probes to the host nuclei occurs only at certain values of the inductionB leading to resonance-like dips in the probe's polarization. For the system12B in single-crystal aluminium CR spectra were measured forB=7...400 mT andT=310...410 K at various crystal orientations relative toB. All the spectra could be well explained by a theoretical calculation assuming the octahedral interstitial site for12B.
|
| Type of Medium: |
Electronic Resource
|
| URL: |