Details
| Original language | English |
|---|---|
| Article number | 005 |
| Pages (from-to) | 4779-4800 |
| Number of pages | 22 |
| Journal | Journal of Physics: Condensed Matter |
| Volume | 4 |
| Issue number | 20 |
| Publication status | Published - 1992 |
| Externally published | Yes |
Abstract
Applying the method of beta -radiation detected nuclear magnetic resonance/relaxation ( beta -NMR) to 8Li nuclei in 7Li3N single crystals comprehensive information on static and dynamic properties was obtained. Below T approximately=200 K the electric field gradients (EFG) at the two inequivalent Li lattice sites (Li(1), Li(2)) were determined. The spin-lattice relaxation (SLR) behavior above T approximately=300 K and the 8Li NMR signals in the extreme narrowing regime (T>or=500 K) could be attributed to interlayer diffusion involving Li+ jumps between Li(1) and Li(2) lattice sites ((1 to or from 2) jumps). In the temperature range 200 K<or=T<or=300 K the transients of the 8Li(1) and 8Li(2) polarizations were measured separately by applying a special radio frequency scheme. The different SLR behaviour allowed us to study the Li+ intralayer diffusion confined to the Li2N layers. Furthermore, ultra-slow interlayer (1 to or from 2) jumps with correlation times of up to 10 s were observed in this T region. Below 200 K a nonexponential 8Li polarization decay depending weakly on B and T was observed. The SLR in this T range is discussed in terms of statistically distributed relaxation centres.
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Journal of Physics: Condensed Matter, Vol. 4, No. 20, 005, 1992, p. 4779-4800.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Li+ diffusion in the fast ionic conductor Li3N investigated by beta -radiation detected NMR
AU - Bader, B.
AU - Heitjans, P.
AU - Stockmann, H. J.
AU - Ackermann, H.
AU - Buttler, W.
AU - Freilander, P.
AU - Kiese, G.
AU - Van Der Marel, C.
AU - Schirmer, A.
PY - 1992
Y1 - 1992
N2 - Applying the method of beta -radiation detected nuclear magnetic resonance/relaxation ( beta -NMR) to 8Li nuclei in 7Li3N single crystals comprehensive information on static and dynamic properties was obtained. Below T approximately=200 K the electric field gradients (EFG) at the two inequivalent Li lattice sites (Li(1), Li(2)) were determined. The spin-lattice relaxation (SLR) behavior above T approximately=300 K and the 8Li NMR signals in the extreme narrowing regime (T>or=500 K) could be attributed to interlayer diffusion involving Li+ jumps between Li(1) and Li(2) lattice sites ((1 to or from 2) jumps). In the temperature range 200 K8Li(1) and 8Li(2) polarizations were measured separately by applying a special radio frequency scheme. The different SLR behaviour allowed us to study the Li+ intralayer diffusion confined to the Li2N layers. Furthermore, ultra-slow interlayer (1 to or from 2) jumps with correlation times of up to 10 s were observed in this T region. Below 200 K a nonexponential 8Li polarization decay depending weakly on B and T was observed. The SLR in this T range is discussed in terms of statistically distributed relaxation centres.
AB - Applying the method of beta -radiation detected nuclear magnetic resonance/relaxation ( beta -NMR) to 8Li nuclei in 7Li3N single crystals comprehensive information on static and dynamic properties was obtained. Below T approximately=200 K the electric field gradients (EFG) at the two inequivalent Li lattice sites (Li(1), Li(2)) were determined. The spin-lattice relaxation (SLR) behavior above T approximately=300 K and the 8Li NMR signals in the extreme narrowing regime (T>or=500 K) could be attributed to interlayer diffusion involving Li+ jumps between Li(1) and Li(2) lattice sites ((1 to or from 2) jumps). In the temperature range 200 K8Li(1) and 8Li(2) polarizations were measured separately by applying a special radio frequency scheme. The different SLR behaviour allowed us to study the Li+ intralayer diffusion confined to the Li2N layers. Furthermore, ultra-slow interlayer (1 to or from 2) jumps with correlation times of up to 10 s were observed in this T region. Below 200 K a nonexponential 8Li polarization decay depending weakly on B and T was observed. The SLR in this T range is discussed in terms of statistically distributed relaxation centres.
UR - http://www.scopus.com/inward/record.url?scp=0001295522&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/4/20/005
DO - 10.1088/0953-8984/4/20/005
M3 - Article
AN - SCOPUS:0001295522
VL - 4
SP - 4779
EP - 4800
JO - Journal of Physics: Condensed Matter
JF - Journal of Physics: Condensed Matter
SN - 0953-8984
IS - 20
M1 - 005
ER -