MÖSSBAUER STUDY OF THE TWO-DIMENSIONAL ANTIFERROMAGNET IN THE CRITICAL REGION : Rb2CoF4:57Fe AND Rb2Co0.95Mg0.05F4:57Fe

1979 ◽  
Vol 40 (C2) ◽  
pp. C2-323-C2-324
Author(s):  
A. Ito ◽  
M. Horiike
Keyword(s):  
Critical Region ◽  
Two Dimensional ◽  
Mössbauer Study

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.

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.

Magnetic ordering of two dimensional antiferromagnets on the triangular lattice: Mössbauer study

1988 ◽  
Vol 41 (1) ◽  
pp. 455-458 ◽  
Author(s):  
Midori Tanaka ◽  
Hiroko Iwasaki ◽  
Kiiti Siratori
Keyword(s):  
Triangular Lattice ◽  
Magnetic Ordering ◽  
Two Dimensional ◽  
Mössbauer Study

Mössbauer study on a two-dimensional triangular antiferromagnet YFeMnO4

1990 ◽  
Vol 54 (1-4) ◽  
pp. 731-735 ◽  
Author(s):  
Midori Tanaka ◽  
Junji Iida ◽  
Kiiti Siratori
Keyword(s):  
Two Dimensional ◽  
Mössbauer Study

Mössbauer Study on the Magnetic Stracture of YbFe2O4: A Two-Dimensional Antiferromagnet on a Triangular Lattice

1989 ◽  
Vol 58 (4) ◽  
pp. 1433-1440 ◽  
Author(s):  
Midori Tanaka ◽  
Hiroko Iwasaki ◽  
Kiiti Siratori ◽  
Isamu Shindo
Keyword(s):  
Triangular Lattice ◽  
Two Dimensional ◽  
Mössbauer Study
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