scholarly journals Neutron-diffraction study ofRNiO3(R=La,Pr,Nd,Sm): Electronically induced structural changes across the metal-insulator transition

1992 ◽  
Vol 46 (8) ◽  
pp. 4414-4425 ◽  
Author(s):  
J. L. García-Muñoz ◽  
J. Rodríguez-Carvajal ◽  
P. Lacorre ◽  
J. B. Torrance
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Structural Changes ◽  
Neutron Diffraction Study ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator

Neutron diffraction study of the metal insulator transition in PrNiO3

1995 ◽  
Vol 14 (1-3) ◽  
pp. 35-40 ◽  
Author(s):  
J. Mesot ◽  
M. Medarde ◽  
S. Rosenkranz ◽  
P. Fischer ◽  
P. Lacorre ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Neutron Diffraction Study ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator

A neutron diffraction study of structural changes in one-dimensional K2Pt(CN)4Br0.3 · 3H2O from 77–323°K

1975 ◽  
Vol 17 (1) ◽  
pp. 45-48 ◽  
Author(s):  
J.M. Williams ◽  
F.K. Ross ◽  
M. Iwata ◽  
J.L. Petersen ◽  
S.W. Peterson ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Structural Changes ◽  
Neutron Diffraction Study ◽  
One Dimensional

Neutron Diffraction Study of 1,2,3-Trichlorobenzene-d3

1994 ◽  
Vol 49 (4-5) ◽  
pp. 599-610
Author(s):  
Dirk Groke ◽  
Gernot Heger ◽  
Bernd Peter Schweiss ◽  
Alarich Weiss
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Structural Changes ◽  
Molecular Geometry ◽  
Neutron Diffraction Study ◽  
Strong Variation ◽  
Compound A ◽  
Cell Parameters ◽  
Difference Fourier ◽  
Temperature Factors

In order to explain the observed 35Cl-NQR anomaly of the title compound, a neutron diffraction study on single crystals was carried out at 295 K and 158 K. No significant structural changes concerning phase transitions or molecular disorder between the two experiments were observed. The space group is P21/c = C2h5 with 8 molecules per unit cell. The asymmetric unit contains 2 molecules. The cell parameters were determined to a = 1264(4) pm, b = 825(2) pm, c = 1503(3) pm, ß = 14.3(3)° at 295 K and a = 1243(2)pm, b = 815(1) pm, c = 1494(2) pm, ß = 114.3(1)° at 158 K. The molecules show rigid-body behaviour. No significant changes of the molecular geometry were observed. A strong variation of the temperature factors as function of the temperature was detected. An anharmonicity of the librational potential of the molecules was found by evaluation of the thermal parameters as function of temperature. For verifying the existence of dynamic processes which lead to a bleaching out of the 35Cl-NQR lines difference, Fourier syntheses were calculated. A reorientation or an order-disorder process as suggested by 35Cl-NQR spectroscopy above 230 K could not be confirmed within the error of the experiments. The degree of deuteration of the samples was determined by refinement of the occupation factors of the deuterium sites.

Spin state and structural changes at the metal-insulator transition in YBaCo2O5.5 by synchrotron x-rays

2012 ◽  
Vol 111 (7) ◽  
pp. 07D710 ◽  
Author(s):  
J. Padilla-Pantoja ◽  
C. Frontera ◽  
J. Herrero-Martín ◽  
J. Luis García-Muñoz
Keyword(s):  
Spin State ◽  
Structural Changes ◽  
Insulator Transition ◽  
X Rays ◽  
Metal Insulator Transition ◽  
Metal Insulator

The role of strain-induced structural changes in the metal–insulator transition in epitaxial SmNiO3films

2008 ◽  
Vol 20 (14) ◽  
pp. 145216 ◽  
Author(s):  
F Conchon ◽  
A Boulle ◽  
R Guinebretière ◽  
E Dooryhée ◽  
J-L Hodeau ◽  
...  
Keyword(s):  
Structural Changes ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator

A neutron diffraction study of temperature-induced structural changes in potassium disilicate glass and melt

2004 ◽  
Vol 213 (1-3) ◽  
pp. 89-102 ◽  
Author(s):  
Odile Majérus ◽  
Laurent Cormier ◽  
Georges Calas ◽  
Brigitte Beuneu
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Structural Changes ◽  
Neutron Diffraction Study
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