MÖSSBAUER STUDY ON THE CRITICAL DYNAMICS OF THE TWO-DIMENSIONAL ANTIFERROMAGNET

1979 ◽  
Vol 40 (C2) ◽  
pp. C2-290-C2-296
Author(s):  
A. Ito ◽  
M. Horiike
Keyword(s):  
Critical Dynamics ◽  
Two Dimensional ◽  
Mössbauer Study

scholarly journals Nonequilibrium critical dynamics of the two-dimensional Ashkin-Teller model at the Baxter line

2017 ◽  
Vol 95 (4) ◽  
Author(s):  
H. A. Fernandes ◽  
R. da Silva ◽  
A. A. Caparica ◽  
J. R. Drugowich de Felício
Keyword(s):  
Critical Dynamics ◽  
Two Dimensional

Nonequilibrium critical dynamics of two dimensional Ising model under slow cooling and heating

2021 ◽  
Vol 71 (2) ◽  
pp. 200-209
Author(s):  
Kangeun JEONG* ◽  
Bongsoo KIM ◽  
Sung Jong LEE
Keyword(s):  
Ising Model ◽  
Critical Dynamics ◽  
Two Dimensional ◽  
Slow Cooling

A Mössbauer study of the quasi two-dimensional antiferromagnet TlFe2−x Se2

1990 ◽  
Vol 54 (1-4) ◽  
pp. 563-566 ◽  
Author(s):  
L. Häggström ◽  
A. Seidel ◽  
R. Berger
Keyword(s):  
Two Dimensional ◽  
Mössbauer Study

QUANTUM CRITICAL BEHAVIOUR IN THE INSULATING REGION OF THE 2D METAL INSULATOR TRANSITION

2006 ◽  
Vol 20 (30n31) ◽  
pp. 5229-5238
Author(s):  
DAVID NEILSON ◽  
D. J. WALLACE GELDART
Keyword(s):  
Critical Region ◽  
Insulator Transition ◽  
Critical Dynamics ◽  
Two Dimensional ◽  
Electron Systems ◽  
Dimensional Electron ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
New Information ◽  
Quantum Critical

We show the insulating region of the metal-insulator transition phenomena in disordered two-dimensional electron systems contains new information about the quantum critical dynamics at low T because the insulating region and the quantum critical region are two aspects of the localized phase.

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

scholarly journals CRITICAL DYNAMICS OF TWO-REPLICA CLUSTER ALGORITHMS

2001 ◽  
Vol 12 (02) ◽  
pp. 257-271
Author(s):  
X.-N. LI ◽  
J. MACHTA
Keyword(s):  
Ising Model ◽  
Critical Behavior ◽  
Cluster Algorithm ◽  
The Other ◽  
Square Lattice ◽  
Critical Dynamics ◽  
Two Dimensional ◽  
Cluster Algorithms ◽  
Dynamic Exponent

The dynamic critical behavior of the two-replica cluster algorithm is studied. Several versions of the algorithm are applied to the two-dimensional, square lattice Ising model with a staggered field. The dynamic exponent for the full algorithm is found to be less than 0.4. It is found that odd translations of one replica with respect to the other together with global flips are essential for obtaining a small value of the dynamic exponent.

MÖSSBAUER STUDY OF STRUCTURAL–CHEMICAL TRANSFORMATION IN TWO-DIMENSIONAL IRON–OXYGEN NANOSTRUCTURES IN THE COURSE OF TRANSPORT REDUCTION

2000 ◽  
Vol 07 (01n02) ◽  
pp. 1-6
Author(s):  
V. M. SMIRNOV ◽  
G. P. VORONKOV ◽  
V. G. SEMENOV ◽  
V. G. POVAROV ◽  
I. V. MURIN
Keyword(s):  
Silica Surface ◽  
Covalent Bonding ◽  
Iron Silicate ◽  
Chemical Transformations ◽  
Two Dimensional ◽  
Mössbauer Study ◽  
Nanoscale Structures ◽  
Reduction Of Iron ◽  
Oxygen Groups ◽  
Surface Monolayers

Structural–chemical transformations of quasi-two-dimensional iron–oxygen nanostructures occurring at transport reduction were studied using NGR spectroscopy. It has been found that isolated iron–oxygen groups [i.e. groups containing iron and oxygen atoms: ≡Si–O–Fe(OH)2 and (≡Si–O–)2–FeOH] forming surface monolayers were not reduced at T = 400–600° C because of their covalent bonding with the silica surface. Reduction of iron oxide microparticles (microstructures) at T ≥ 600°C C resulted in the formation of metal iron in the form of α-Fe. It has been revealed that in the course of transport reduction (TR) of the samples with deposited monolayers (one or four monolayers) at T ≥ 600° C bulk phases of iron silicate and metal iron were formed. It has also been shown that the features of structural–chemical transformations of supported iron–oxygen nanolayers were in relation with the specific character of phase formation within nanoscale structures.

Sign in / Sign up

Export Citation Format

Share Document