Phase transformations and magnetic structure of nanocrystalline Fe–Pd and Co–Pt alloys studied by in situ neutron powder diffraction

2009 ◽  
Vol 105 (7) ◽  
pp. 07A717 ◽  
Author(s):  
Julia Lyubina ◽  
Oliver Gutfleisch ◽  
Olivier Isnard
Keyword(s):  
Phase Transformations ◽  
Magnetic Structure ◽  
Powder Diffraction ◽  
Neutron Powder Diffraction ◽  
Pt Alloys

Influence of composition and order on the magnetism of Fe–Pt alloys: Neutron powder diffraction and theory

2006 ◽  
Vol 89 (3) ◽  
pp. 032506 ◽  
Author(s):  
Julia Lyubina ◽  
Ingo Opahle ◽  
Manuel Richter ◽  
Oliver Gutfleisch ◽  
Karl-Hartmut Müller ◽  
...  
Keyword(s):  
Powder Diffraction ◽  
Neutron Powder Diffraction ◽  
Pt Alloys

A Study of the Magnetic Structure of LaMn2O5from Neutron Powder Diffraction Data

2005 ◽  
Vol 2005 (4) ◽  
pp. 685-691 ◽  
Author(s):  
Angel Muñoz ◽  
Jose A. Alonso ◽  
María T. Casais ◽  
María J. Martínez-Lope ◽  
Jose L. Martínez ◽  
...  
Keyword(s):  
Magnetic Structure ◽  
Powder Diffraction ◽  
Diffraction Data ◽  
Neutron Powder Diffraction ◽  
Powder Diffraction Data ◽  
Neutron Powder Diffraction Data

In Situ Neutron Powder Diffraction Study of Ti3SiC2 Synthesis

2004 ◽  
Vol 84 (10) ◽  
pp. 2281-2288 ◽  
Author(s):  
Erdong Wu ◽  
Erich H. Kisi ◽  
Shane J. Kennedy ◽  
Andrew J. Studer
Keyword(s):  
Diffraction Study ◽  
Powder Diffraction ◽  
Neutron Powder Diffraction

Neutron powder diffraction study of the magnetic structure of EuZrO3

2014 ◽  
Vol 26 (9) ◽  
pp. 095401 ◽  
Author(s):  
Maxim Avdeev ◽  
Brendan J Kennedy ◽  
Taras Kolodiazhnyi
Keyword(s):  
Diffraction Study ◽  
Magnetic Structure ◽  
Powder Diffraction ◽  
Neutron Powder Diffraction

Oxygen Ordered Phases in LaxSr1−xMnOy(0 ≤x≤ 0.2, 2.5 ≤ y ≤ 3): An In situ Neutron Powder Diffraction Study

2008 ◽  
Vol 20 (4) ◽  
pp. 1636-1645 ◽  
Author(s):  
Leopoldo Suescun ◽  
Bogdan Dabrowski ◽  
James Mais ◽  
Steven Remsen ◽  
James W. Richardson ◽  
...  
Keyword(s):  
Diffraction Study ◽  
Powder Diffraction ◽  
Neutron Powder Diffraction ◽  
Ordered Phases

Mn-Mg disordering in cummingtonite: a high-temperature neutron powder diffraction study

2000 ◽  
Vol 64 (2) ◽  
pp. 255-266 ◽  
Author(s):  
J. J. Reece ◽  
S. A. T. Redfern ◽  
M. D. Welch ◽  
C. M. B. Henderson
Keyword(s):  
Crystal Structure ◽  
Phase Transition ◽  
New York ◽  
High Temperature ◽  
Powder Diffraction ◽  
Elevated Temperatures ◽  
Neutron Powder Diffraction ◽  
Site Preference ◽  
A Site

AbstractThe crystal structure of a manganoan cummingtonite, composition [M4](Na0.13Ca0.41Mg0.46Mn1.00) [M1,2,3](Mg4.87Mn0.13)(Si8O22)(OH)2, (Z = 2), a = 9.5539(2) Å, b = 18.0293(3) Å, c = 5.2999(1) Å, β = 102.614(2)° from Talcville, New York, has been refined at high temperature using in situ neutron powder diffraction. The P21/m to C2/m phase transition, observed as spontaneous strains +ε1 = −ε2, occurs at ˜107°C. Long-range disordering between Mg2+ and Mn2+ on the M(4) and M(2) sites occurs above 550°C. Mn2+ occupies the M(4) and M(2) sites preferring M(4) with a site-preference energy of 24.6±1.5 kJ mol−1. Disordering induces an increase in XMnM2 and decrease in XMnM4 at elevated temperatures. Upon cooling, the ordered states of cation occupancy are ‘frozen in’ and strains in lattice parameters are maintained, suggesting that re-equilibration during cooling has not taken place.

Sign in / Sign up

Export Citation Format

Share Document