Magnetic correlations in two-dimensional spin-glasses

1980 ◽  
Vol 22 (1) ◽  
pp. 288-303 ◽  
Author(s):  
I. Morgenstern ◽  
K. Binder
Keyword(s):  
Spin Glasses ◽  
Two Dimensional ◽  
Magnetic Correlations

Spin–Spin Correlations in Site Disordered ±J 2D Ising Spin Glasses

1998 ◽  
Vol 09 (05) ◽  
pp. 685-691
Author(s):  
B. Kawecka-Magiera ◽  
A. Z. Maksymowicz ◽  
M. Kowal ◽  
K. Kulakowski
Keyword(s):  
Correlation Functions ◽  
Spin Glasses ◽  
Interatomic Distance ◽  
Spin Correlation ◽  
Two Dimensional ◽  
Spin Correlations ◽  
Ising Spin ◽  
Bond System ◽  
Random Site

Spin–spin correlation functions <S(0)S(R)> as dependent on interatomic distance R are studied in the random-site two-dimensional Ising S=1/2 ±J system. Oscillations of the correlation functions are found, which is not a case in the random-bond system.

scholarly journals Magnetic Correlations in Spin Glasses above the Freezing Temperature investigated by High Field Mössbauer Spectroscopy

1998 ◽  
Vol 51 (2) ◽  
pp. 349 ◽  
Author(s):  
J. Bogner ◽  
H. Schachner ◽  
M. Reissner ◽  
W. Steiner
Keyword(s):  
External Field ◽  
Temperature Dependence ◽  
Power Law ◽  
Spin Glasses ◽  
High Field ◽  
Freezing Temperature ◽  
Hyperfine Fields ◽  
Magnetic Correlations ◽  
Neighbour Shell ◽  
Centre Shift

The strong dynamics of magnetic correlations are observed by high field 57Fe Mössbauer investigations for the spin glasses AuFe and Y(Fe, Al)2 in the temperature interval between the freezing temperature Tf and approximately 7 to 10Tf. All recorded spectra can be analysed with a model which takes into account these dynamics by allowing the formation of correlated states after a stochastically varying time τoff and their decay after a time τon, restricting the number of subspectra to the different number of Fe atoms in the first neighbour shell. Whereas for the different Fe environments, in addition to centre shift and quadrupole splitting, different hyperfine fields of the two stochastically formed states can always be resolved, the same set of τon and τoff values was obtained for all subspectra above approximately 4Tf. The external field hinders the decay of the correlated regions. The temperature dependence of ¿ on scales with Tf and exhibits a power law with exponents of –2 for the Fe-rich and –1 for the Fe-poor compounds.

Phase Transitions and Magnetic Correlations in Two‐Dimensional Antiferromagnets

1970 ◽  
Vol 41 (3) ◽  
pp. 1303-1310 ◽  
Author(s):  
R. J. Birgeneau ◽  
J. Skalyo ◽  
G. Shirane
Keyword(s):  
Phase Transitions ◽  
Two Dimensional ◽  
Magnetic Correlations

scholarly journals Strong Universality and Algebraic Scaling in Two-Dimensional Ising Spin Glasses

2006 ◽  
Vol 96 (23) ◽  
Author(s):  
T. Jörg ◽  
J. Lukic ◽  
E. Marinari ◽  
O. C. Martin
Keyword(s):  
Spin Glasses ◽  
Two Dimensional ◽  
Ising Spin

Two-dimensional magnetic correlations and magnetic ordering of Dy and Er in DyBa2Cu3O7 and ErBa2Cu3O7

1992 ◽  
Vol 104-107 ◽  
pp. 625-626 ◽  
Author(s):  
T.W. Clinton ◽  
J.W. Lynn ◽  
J.Z. Liu ◽  
Y.X. Jia ◽  
R.N. Shelton
Keyword(s):  
Magnetic Ordering ◽  
Two Dimensional ◽  
Magnetic Correlations

scholarly journals Two-Dimensional Ising Spin Glasses with Nonzero Ordering Temperatures

1996 ◽  
Vol 76 (24) ◽  
pp. 4616-4619 ◽  
Author(s):  
N. Lemke ◽  
I. A. Campbell
Keyword(s):  
Spin Glasses ◽  
Two Dimensional ◽  
Ising Spin

scholarly journals Erratum: Quasi-two-dimensional magnetic correlations in Ni2P2S6 probed by P31 NMR [Phys. Rev. B 102 , 064429 (2020)]

2021 ◽  
Vol 104 (9) ◽  
Author(s):  
A. P. Dioguardi ◽  
S. Selter ◽  
U. Peeck ◽  
S. Aswartham ◽  
M.-I. Sturza ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Magnetic Correlations
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