scholarly journals Spin correlations in the two-dimensional spin-5/2 Heisenberg antiferromagnet

1998 ◽  
Vol 5 (1) ◽  
pp. 15-22 ◽  
Author(s):  
Y.S. Lee ◽  
M. Greven ◽  
B.O. Wells ◽  
R.J. Birgeneau ◽  
G. Shirane
Keyword(s):  
Two Dimensional ◽  
Heisenberg Antiferromagnet ◽  
Spin Correlations

Spin dynamics and spin correlations in the spinS=1 two-dimensional square-lattice Heisenberg antiferromagnet La2NiO4

1995 ◽  
Vol 96 (4) ◽  
pp. 479-489 ◽  
Author(s):  
K. Nakajima ◽  
K. Yamada ◽  
S. Hosoya ◽  
Y. Endoh ◽  
M. Greven ◽  
...  
Keyword(s):  
Spin Dynamics ◽  
Square Lattice ◽  
Two Dimensional ◽  
Heisenberg Antiferromagnet ◽  
Spin Correlations

scholarly journals NEAR-BOUNDARY AND BULK REGIONS OF A SEMI-INFINITE TWO-DIMENSIONAL HEISENBERG ANTIFERROMAGNET

2010 ◽  
Vol 24 (22) ◽  
pp. 2327-2334 ◽  
Author(s):  
N. VOROPAJEVA ◽  
A. SHERMAN
Keyword(s):  
Spin Wave ◽  
Nearest Neighbor ◽  
Spin Waves ◽  
Two Dimensional ◽  
Heisenberg Antiferromagnet ◽  
Elementary Excitations ◽  
Spin Correlations ◽  
One Dimensional ◽  
Wave Approximation

Using the spin-wave approximation elementary excitations of a semi-infinite two-dimensional S = ½ Heisenberg antiferromagnet are considered. The spectrum consists of bulk modes — standing spin waves and a quasi-one-dimensional mode of boundary spin waves. These latter excitations eject bulk modes from two boundary rows of sites, thereby dividing the antiferromagnet into two regions with different dominant excitations. As a result, absolute values of nearest-neighbor spin correlations on the edge exceed the bulk value.

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 Quantum effects inS= 1/2 two-dimensional Heisenberg antiferromagnet in applied magnetic field

2008 ◽  
Vol 64 (a1) ◽  
pp. C416-C416
Author(s):  
N. Tsyrulin ◽  
M. Kenzelmann ◽  
F. Xiao ◽  
P. Link ◽  
A. Schneidewind ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Applied Magnetic Field ◽  
Quantum Effects ◽  
Two Dimensional ◽  
Heisenberg Antiferromagnet

Two-dimensional Magnetism in κ-(BEDT-TTF)2Cu[N(CN)2]Cl, a Spin-1/2 Heisenberg Antiferromagnet with Dzyaloshinskii–Moriya Interaction

2015 ◽  
Vol 84 (12) ◽  
pp. 124704 ◽  
Author(s):  
Ágnes Antal ◽  
Titusz Fehér ◽  
Bálint Náfrádi ◽  
László Forró ◽  
András Jánossy
Keyword(s):  
Two Dimensional ◽  
Heisenberg Antiferromagnet ◽  
Moriya Interaction
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