Electron Spin-Lattice Relaxation of Rare-Earth Ions in Lanthanum Magnesium Double Nitrate under Pressure

1977 ◽  
Vol 83 (1) ◽  
pp. K59-K61 ◽  
Author(s):  
G. N. Neilo ◽  
A. D. Prokhorov ◽  
G. A. Tsintsadze
Keyword(s):  
Rare Earth ◽  
Electron Spin ◽  
Lattice Relaxation ◽  
Rare Earth Ions ◽  
Spin Lattice Relaxation ◽  
Spin Lattice

Spin-Lattice Relaxation of Rare-Earth Ions in LaF3

1966 ◽  
Vol 149 (1) ◽  
pp. 270-288 ◽  
Author(s):  
M. B. Schulz ◽  
C. D. Jeffries
Keyword(s):  
Rare Earth ◽  
Lattice Relaxation ◽  
Rare Earth Ions ◽  
Spin Lattice Relaxation ◽  
Spin Lattice

EPR and spin-lattice relaxation of rare-earth ions in LiLuF4 monocrystals

1988 ◽  
Vol 31 (2) ◽  
pp. 104-106 ◽  
Author(s):  
R. Yu. Abdulsabirov ◽  
A. A. Antipin ◽  
S. L. Korableva ◽  
R. M. Rakhmatullin ◽  
Yu. K. Rozentsvaig
Keyword(s):  
Rare Earth ◽  
Lattice Relaxation ◽  
Rare Earth Ions ◽  
Spin Lattice Relaxation ◽  
Spin Lattice

Low-temperature proton spin–lattice relaxation maxima of lanthanum hydrides doped with paramagnetic rare earth ions

2004 ◽  
Vol 16 (34) ◽  
pp. 6147-6158 ◽  
Author(s):  
S Leyer ◽  
R G Barnes ◽  
C Buschhaus ◽  
G Fischer ◽  
B Pilawa ◽  
...  
Keyword(s):  
Rare Earth ◽  
Low Temperature ◽  
Lattice Relaxation ◽  
Proton Spin ◽  
Rare Earth Ions ◽  
Spin Lattice Relaxation ◽  
Spin Lattice

Pulse Shaped Dynamic Nuclear Polarization Under Magic Angle Spinning

2019 ◽  
Author(s):  
ASIF EQUBAL ◽  
Kan Tagami ◽  
Songi Han
Keyword(s):  
Electron Spin ◽  
Lattice Relaxation ◽  
Magic Angle Spinning ◽  
Spin Lattice Relaxation ◽  
Magic Angle ◽  
Total Electron ◽  
Spin Lattice ◽  
Maximum Benefit ◽  
Selective Saturation ◽  
Angle Spinning

In this paper, we report on an entirely novel way of improving the MAS-DNP efficiency by shaped μw pulse train irradiation for fast and broad-banded (FAB) saturation of the electron spin resonance. FAB-DNP achieved with Arbitrary Wave Generated shaped μw pulse trains facilitates effective and selective saturation of a defined fraction of the total electron spins, and provides superior control over the DNP efficiency under MAS. Experimental and quantum-mechanics based numerically simulated results together demonstrate that FAB-DNP significantly outperforms CW-DNP when the EPR-line of PAs is broadened by conformational distribution and exchange coupling. We demonstrate that the maximum benefit of FAB DNP is achieved when the electron spin-lattice relaxation is fast relative to the MAS frequency, i.e. at higher temperatures and/or when employing metals as PAs. Calculations predict that under short T<sub>1e </sub>conditions AWG-DNP can achieve as much as ~4-fold greater enhancement compared to CW-DNP.

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