THEORETICAL ANALYSIS OF ADSORBATE-INDUCED ROW-TYPE ALIGNMENTS ON THE FCC(110) SURFACE

1999 ◽  
Vol 06 (05) ◽  
pp. 699-704 ◽  
Author(s):  
K. YASUTANI ◽  
M. KABURAGI ◽  
M. KANG
Keyword(s):  
Phase Diagram ◽  
Theoretical Analysis ◽  
Ground State ◽  
Nearest Neighbor ◽  
Comparison Method ◽  
Model Structure ◽  
Two Dimensional ◽  
Ground State Phase Diagram ◽  
Interaction Regime ◽  
Beg Model

The structures of adsorbate-induced row-type alignments of the FCC(110) surface are analyzed using the two-dimensional Blume–Emmery–Griffiths (BEG) model with the nearest-neighbor (NN) and the next-nearest-neighbor (NNN) interactions. The ground state phase diagram in whole regimes of interactions is determined by the energy comparison method. Comparing the results of ground state analysis with experimentally observed structures of the O/Rh(110) and O/Pd(110), we determine the interaction regimes for these systems. From the thus determined interaction regime, we propose the model structure in the c(2 × 6) phase of the O/Pd(110).

scholarly journals Emergent BCS regime of the two-dimensional fermionic Hubbard model: Ground-state phase diagram

2015 ◽  
Vol 110 (5) ◽  
pp. 57001 ◽  
Author(s):  
Youjin Deng ◽  
Evgeny Kozik ◽  
Nikolay V. Prokof'ev ◽  
Boris V. Svistunov
Keyword(s):  
Phase Diagram ◽  
Hubbard Model ◽  
Ground State ◽  
Two Dimensional ◽  
Ground State Phase Diagram

scholarly journals Ground-state phase diagram of spin-12bosons in a two-dimensional optical lattice

2011 ◽  
Vol 84 (6) ◽  
Author(s):  
L. de Forges de Parny ◽  
F. Hébert ◽  
V. G. Rousseau ◽  
R. T. Scalettar ◽  
G. G. Batrouni
Keyword(s):  
Phase Diagram ◽  
Ground State ◽  
Optical Lattice ◽  
Two Dimensional ◽  
Ground State Phase Diagram

scholarly journals Mean-field Solution of the mixed spin-1 and spin-5/2Ising system with different single-ion anisotropies

2009 ◽  
Vol 6 (4) ◽  
pp. 784-789
Author(s):  
Baghdad Science Journal
Keyword(s):  
Phase Diagram ◽  
Ground State ◽  
Mean Field ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
Two Dimensional ◽  
Ground State Phase Diagram ◽  
Mixed Spin ◽  
Bogoliubov Inequality ◽  
The Mean

The mixed-spin ferrimagnetic Ising system consists of two-dimensional sublattices A and B with spin values and respectively .By used the mean-field approximation MFA of Ising model to find magnetism( ).In order to determined the best stabile magnetism , Gibbs free energy employ a variational method based on the Bogoliubov inequality .The ground-state (Phase diagram) structure of our system can easily be determined at , we find six phases with different spins values depend on the effect of a single-ion anisotropies .these lead to determined the second , first orders transition ,and the tricritical points as well as the compensation phenomenon .

Sign in / Sign up

Export Citation Format

Share Document