Do dendritic amphiphiles self-assemble in water? A Fourier transform pulse-gradient spin-echo NMR study

2001 ◽  
Vol 14 (7) ◽  
pp. 392-399 ◽  
Author(s):  
Fredric M. Menger ◽  
Andrey V. Peresypkin ◽  
Shaoxiong Wu
Keyword(s):  
Fourier Transform ◽  
Spin Echo ◽  
Nmr Study ◽  
Pulse Gradient

63Cu-NMR Study in High-Tc Superconductor HgBa2Ca2Cu3O8 + δ

1996 ◽  
Vol 51 (5-6) ◽  
pp. 801-804
Author(s):  
K. Magishi ◽  
G.-q. Zheng ◽  
Y. Kitaoka ◽  
K. Asayama ◽  
K. Tokiwa ◽  
...  
Keyword(s):  
Decay Rate ◽  
Normal State ◽  
Spin Echo ◽  
Spin Correlation ◽  
Gaussian Component ◽  
Relaxation Rates ◽  
Transverse Relaxation ◽  
High Tc ◽  
High Tc Superconductor ◽  
Nmr Study

Abstract The 63Cu nuclear transverse relaxation rates have been measured in the normal state on both square and pyramidal CuO2 planes in HgBa2Ca2Cu3O8 + δ with Tc = 133K. The Gaussian component of the spin-echo decay rate, 63(1/T2G), for both sites increases with decreasing temperature, followed by a peak around T* ~ 150 K, indicating that the spin correlation becomes stronger with decreasing temperature. Also, it is found that the magnitude of 63(1/T2G) for a square site is larger than that for a pyramidal one, suggesting that the spin correlation in the square plane is stronger than that in the pyramidal one.

A fourier transform 13C NMR study of phenyl-phosphorus, -arsenic, -antimony and -bismuth derivatives

1977 ◽  
Vol 129 (2) ◽  
pp. 163-168 ◽  
Author(s):  
L.F. Wuyts ◽  
D.F. van de Vondel ◽  
G.P. van der Kelen
Keyword(s):  
Fourier Transform ◽  
13C Nmr ◽  
Nmr Study

Earth's Field NMR in Antarctica: A Pulsed Gradient Spin Echo NMR Study of Restricted Diffusion in Sea Ice

1998 ◽  
Vol 133 (1) ◽  
pp. 148-154 ◽  
Author(s):  
P.T. Callaghan ◽  
C.D. Eccles ◽  
T.G. Haskell ◽  
P.J. Langhorne ◽  
J.D. Seymour
Keyword(s):  
Sea Ice ◽  
Spin Echo ◽  
Restricted Diffusion ◽  
Nmr Study
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