Monte Carlo study of adsorption on heterogeneous surfaces: finite size and boundary effects in localized monolayers

Langmuir ◽  
1993 ◽  
Vol 9 (10) ◽  
pp. 2562-2568 ◽  
Author(s):  
Andrzej Patrykiejew
Keyword(s):  
Monte Carlo ◽  
Finite Size ◽  
Monte Carlo Study ◽  
Boundary Effects ◽  
Heterogeneous Surfaces ◽  
Adsorption On Heterogeneous Surfaces

scholarly journals Monte Carlo study of the finite-size effects on the magnetization of maghemite small particles

2001 ◽  
Vol 89 (11) ◽  
pp. 7597-7599 ◽  
Author(s):  
Òscar Iglesias ◽  
Amı́lcar Labarta ◽  
Fèlix Ritort
Keyword(s):  
Monte Carlo ◽  
Size Effects ◽  
Finite Size ◽  
Monte Carlo Study ◽  
Small Particles ◽  
Finite Size Effects

MONTE CARLO STUDY OF ONE HOLE IN A QUANTUM ANTIFERROMAGNET

1992 ◽  
Vol 06 (05n06) ◽  
pp. 587-588
Author(s):  
S. Sorella
Keyword(s):  
Magnetic Field ◽  
Monte Carlo ◽  
Thermodynamic Limit ◽  
Quantum Monte Carlo ◽  
Finite Size ◽  
Monte Carlo Study ◽  
Mott Insulator ◽  
Trial Wavefunction ◽  
The One ◽  
Quantum Antiferromagnet

Using the standard Quantum Monte Carlo technique for the Hubbard model, I present here a numerical investigation of the hole propagation in a Quantum Antiferromagnet. The calculation is very well stabilized, using selected sized systems and special use of the trial wavefunction that satisfy the “close shell condition” in presence of an arbitrarily weak Zeeman magnetic field, vanishing in the thermodynamic limit. It will be shown in a forthcoming publication1 that the presence of this magnetic field does not affect thermodynamic properties for the half filled system. Then I have used the same selected sizes for the one hole ground state. I have investigated the question of vanishing or nonvanishing quasiparticle weight, in order to clarify whether the Mott insulator should behave just as conventional insulator with an upper and lower Hubbard band. By comparing the present finite size scaling with several techniques predicting a finite quasiparticle weight (see Fig.1) the data seem more consistent with a vanishing quasiparticle weight, i.e. , as recently suggested by P.W. Anderson2 the Hubbard-Mott insulator should be characterized by non-trivial excitations which cannot be interpreted in a simple quasi-particle picture. However it cannot be excluded , based only on numerical grounds, that a very small but non vanishing quasiparticle weight should survive in the thermodynamic limit.

Sublattice order parameter in the BCSOS model: a finite-size Monte Carlo study

1992 ◽  
Vol 25 (15) ◽  
pp. L967-L973 ◽  
Author(s):  
G Mazzeo ◽  
G Jug ◽  
A C Levi ◽  
E Tosatti
Keyword(s):  
Monte Carlo ◽  
Order Parameter ◽  
Finite Size ◽  
Monte Carlo Study
Sign in / Sign up

Export Citation Format

Share Document