Spin dynamics study of the critical dynamics of the anisotropic three-dimensional Heisenberg antiferromagnet (abstract)

1997 ◽  
Vol 81 (8) ◽  
pp. 4399-4399
Author(s):  
Alex Bunker ◽  
Kun Chen ◽  
D. P. Landau
Keyword(s):  
Spin Dynamics ◽  
Three Dimensional ◽  
Critical Dynamics ◽  
Heisenberg Antiferromagnet

scholarly journals Structure Solution of Nano-Crystalline Small Molecules Using MicroED and Solid-State NMR Dipolar-Based Experiments

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4652
Author(s):  
Nghia Tuan Duong ◽  
Yoshitaka Aoyama ◽  
Katsumi Kawamoto ◽  
Toshio Yamazaki ◽  
Yusuke Nishiyama
Keyword(s):  
Spin Dynamics ◽  
Double Resonance ◽  
Three Dimensional ◽  
Saturation Pulse ◽  
X Ray Crystallography ◽  
Nano Crystalline ◽  
Structure Solution ◽  
Validation Procedure ◽  
R Factors ◽  
Shift Calculation

Three-dimensional electron diffraction crystallography (microED) can solve structures of sub-micrometer crystals, which are too small for single crystal X-ray crystallography. However, R factors for the microED-based structures are generally high because of dynamic scattering. That means R factor may not be reliable provided that kinetic analysis is used. Consequently, there remains ambiguity to locate hydrogens and to assign nuclei with close atomic numbers, like carbon, nitrogen, and oxygen. Herein, we employed microED and ssNMR dipolar-based experiments together with spin dynamics numerical simulations. The NMR dipolar-based experiments were 1H-14N phase-modulated rotational-echo saturation-pulse double-resonance (PM-S-RESPDOR) and 1H-1H selective recoupling of proton (SERP) experiments. The former examined the dephasing effect of a specific 1H resonance under multiple 1H-14N dipolar couplings. The latter examined the selective polarization transfer between a 1H-1H pair. The structure was solved by microED and then validated by evaluating the agreement between experimental and calculated dipolar-based NMR results. As the measurements were performed on 1H and 14N, the method can be employed for natural abundance samples. Furthermore, the whole validation procedure was conducted at 293 K unlike widely used chemical shift calculation at 0 K using the GIPAW method. This combined method was demonstrated on monoclinic l-histidine.

scholarly journals Quantum effects in the spin dynamics of the linear Heisenberg antiferromagnet

1979 ◽  
Vol 50 (B11) ◽  
pp. 7404 ◽  
Author(s):  
Gerhard Müller ◽  
Hans Beck ◽  
Jill C. Bonnerb
Keyword(s):  
Spin Dynamics ◽  
Quantum Effects ◽  
Heisenberg Antiferromagnet

scholarly journals Universality in the off-equilibrium critical dynamics of the three-dimensional diluted Ising model

1999 ◽  
Vol 60 (5) ◽  
pp. 5198-5201 ◽  
Author(s):  
G. Parisi ◽  
F. Ricci-Tersenghi ◽  
J. J. Ruiz-Lorenzo
Keyword(s):  
Ising Model ◽  
Three Dimensional ◽  
Critical Dynamics

An unified view of the spin dynamics in two- and three-dimensional magnetic systems

1999 ◽  
Vol 205 (2-3) ◽  
pp. 343-356 ◽  
Author(s):  
U. Köbler ◽  
A. Hoser ◽  
M. Kawakami ◽  
T. Chatterji ◽  
J. Rebizant
Keyword(s):  
Spin Dynamics ◽  
Three Dimensional ◽  
Magnetic Systems ◽  
Unified View

scholarly journals Critical dynamics in the two-dimensional classicalXYmodel: A spin-dynamics study

1996 ◽  
Vol 54 (17) ◽  
pp. 12302-12317 ◽  
Author(s):  
Hans Gerd Evertz ◽  
D. P. Landau
Keyword(s):  
Spin Dynamics ◽  
Critical Dynamics ◽  
Two Dimensional
Sign in / Sign up

Export Citation Format

Share Document