scholarly journals Stacking Faults and Short‐Range Magnetic Correlations in Single Crystal Y 5 Ru 2 O 12 : A Structure with Ru +4.5 One‐Dimensional Chains

2020 ◽  
pp. 2000197
Author(s):  
Liurukara D. Sanjeewa ◽  
Yaohua Liu ◽  
Jie Xing ◽  
Randy S. Fishman ◽  
Mudithangani T. K. Kolambage ◽  
...  
Keyword(s):  
Single Crystal ◽  
Short Range ◽  
Stacking Faults ◽  
One Dimensional ◽  
Magnetic Correlations

scholarly journals One-dimensional short-range magnetic correlations in the magnetoelectric pyroxeneCaMnGe2O6

2016 ◽  
Vol 93 (6) ◽  
Author(s):  
L. Ding ◽  
C. V. Colin ◽  
C. Darie ◽  
J. Robert ◽  
F. Gay ◽  
...  
Keyword(s):  
Short Range ◽  
One Dimensional ◽  
Magnetic Correlations

TEM Analysis of Long-Period Superstructures in TiAl Single Crystal with Composition Gradient

2004 ◽  
Vol 842 ◽  
Author(s):  
S. Hata ◽  
K. Shiraishi ◽  
N. Kuwano ◽  
M. Itakura ◽  
Y. Tomokiyo ◽  
...  
Keyword(s):  
Single Crystal ◽  
Short Range ◽  
Structural Changes ◽  
Antiphase Domain ◽  
Al Alloys ◽  
Composition Gradient ◽  
Tem Analysis ◽  
One Dimensional ◽  
Long Period ◽  
Domain Structures

ABSTRACTThe ordering mechanism of long-period superstructures (LPSs) in Al-rich Ti-Al alloys was studied using a TiAl single crystal with a composition gradient. A TiAl single crystal with gradient compositions from 55 to 75 at.% Al was prepared by annealing in a molten Al at 1234°C. The single crystal exhibits long-period ordering into different LPSs depending on the Al concentration as follows: an Al5Ti3 type short-range order, h-Al2Ti and one-dimensional antiphase domain structures. These LPSs show an orientation relationship in which Al (002) layers of the LPSs are parallel to those of the TiAl matrix. The atomic arrangements of the LPSs are characterized in common as the alternate stacking of the Al (002) layers and Ti-Al (002) layers. It is thus concluded that the ordering of this type of LPSs and the phase transition between these LPSs are explained as structural changes in Ti-Al (002) layers of the Al-rich L10-TiAl crystal.

scholarly journals Single-crystal neutron diffraction study of short-range magnetic correlations inTb5Ge4

2009 ◽  
Vol 80 (13) ◽  
Author(s):  
W. Tian ◽  
A. Kreyssig ◽  
J. L. Zarestky ◽  
L. Tan ◽  
S. Nandi ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Single Crystal ◽  
Diffraction Study ◽  
Short Range ◽  
Neutron Diffraction Study ◽  
Magnetic Correlations

scholarly journals Probing the interplay between lattice dynamics and short-range magnetic correlations in CuGeO3 with femtosecond RIXS

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
E. Paris ◽  
C. W. Nicholson ◽  
S. Johnston ◽  
Y. Tseng ◽  
M. Rumo ◽  
...  
Keyword(s):  
Short Range ◽  
Degrees Of Freedom ◽  
Time Resolved ◽  
Model Calculations ◽  
Spin Correlations ◽  
Singlet Exciton ◽  
Magnetic Correlations ◽  
Local Lattice ◽  
Frustrated Systems ◽  
A Charge

AbstractInvestigations of magnetically ordered phases on the femtosecond timescale have provided significant insights into the influence of charge and lattice degrees of freedom on the magnetic sub-system. However, short-range magnetic correlations occurring in the absence of long-range order, for example in spin-frustrated systems, are inaccessible to many ultrafast techniques. Here, we show how time-resolved resonant inelastic X-ray scattering (trRIXS) is capable of probing such short-ranged magnetic dynamics in a charge-transfer insulator through the detection of a Zhang–Rice singlet exciton. Utilizing trRIXS measurements at the O K-edge, and in combination with model calculations, we probe the short-range spin correlations in the frustrated spin chain material CuGeO3 following photo-excitation, revealing a strong coupling between the local lattice and spin sub-systems.

scholarly journals LATTICE THREE-SPECIES MODELS OF THE SPATIAL SPREAD OF RABIES AMONG FOXES

1999 ◽  
Vol 10 (06) ◽  
pp. 1025-1038 ◽  
Author(s):  
A. BENYOUSSEF ◽  
N. BOCCARA ◽  
H. CHAKIB ◽  
H. EZ-ZAHRAOUY
Keyword(s):  
Carrying Capacity ◽  
Short Range ◽  
Lattice Models ◽  
Infection Process ◽  
Spatial Spread ◽  
One Dimensional ◽  
Sense Of Direction ◽  
Speed Of Propagation ◽  
Automata Network ◽  
And Diffusion

Lattice models describing the spatial spread of rabies among foxes are studied. In these models, the fox population is divided into three-species: susceptible (S), infected or incubating (I), and infectious or rabid (R). They are based on the fact that susceptible and incubating foxes are territorial while rabid foxes have lost their sense of direction and move erratically. Two different models are investigated: a one-dimensional coupled-map lattice model, and a two-dimensional automata network model. Both models take into account the short-range character of the infection process and the diffusive motion of rabid foxes. Numerical simulations show how the spatial distribution of rabies, and the speed of propagation of the epizootic front depend upon the carrying capacity of the environment and diffusion of rabid foxes out of their territory.

Frustration and short range magnetic correlations in the pyrochlore Y2Mn2O7 (abstract)

1991 ◽  
Vol 69 (8) ◽  
pp. 5255-5255 ◽  
Author(s):  
J. N. Reimers ◽  
J. E. Greedan ◽  
M. A. Subramanian ◽  
R. K. Kremer ◽  
E. Gmelin
Keyword(s):  
Short Range ◽  
Magnetic Correlations

Synthesis, IR spectrum, thermal behaviour and crystal structure of a novel one-dimensional cyano-bridged zinc(II)/nickel(II) complex

2005 ◽  
Vol 220 (1) ◽  
Author(s):  
Ahmet Karadag ◽  
Hümeyra Pasaoglu ◽  
Gökhan Kastas ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Thermal Analysis ◽  
Coordination Polymer ◽  
Single Crystal ◽  
Ir Spectrum ◽  
Polymeric Chain ◽  
X Ray Diffraction ◽  
Bimetallic Complex ◽  
One Dimensional ◽  
X Ray

AbstractThe cyano-bridged heteronuclear coordination polymer of zinc(II)/nickel(II) has been prepared by N-(2-hydroxyethyl)-ethylendiamine (hydet-en), alternatively named 2-(2-aminoethylamino)-ethanol and characterised by IR and thermal analysis. In the bimetallic complex, the decomposition of hydet-en ligands is seen to be endothermic whereas that of the cyano ligands is found to be exothermic. The crystal structure of the complex has been determined by single-crystal X-ray diffraction. The crystal structure of the zinc(II)-nickel(II) complex consists of a one-dimensional polymeric chain –Zn(hydet-en)

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