scholarly journals Orthorhombic distortion and orbital order in the vanadium spinelFeV2O4

2016 ◽  
Vol 93 (2) ◽  
Author(s):  
S. Kawaguchi ◽  
H. Ishibashi ◽  
S. Nishihara ◽  
S. Mori ◽  
J. Campo ◽  
...  
Keyword(s):  
Orthorhombic Distortion ◽  
Orbital Order

A study of twinning in YBa2Cu3O7−x by large-angle convergent-beam electron diffraction

1990 ◽  
Vol 48 (4) ◽  
pp. 20-21
Author(s):  
P.A. Midgley ◽  
R. Vincent ◽  
D. Cherns
Keyword(s):  
Electron Diffraction ◽  
Oxygen Atom ◽  
Strain Field ◽  
Large Angle ◽  
Convergent Beam Electron Diffraction ◽  
Orthorhombic Distortion ◽  
Beam Electron ◽  
Resultant Powder ◽  
Convergent Beam ◽  
Mesh Grid

The oxygenation of YBa2Cu3O7−x (YBCO) leads to an orthorhombic distortion of the unit cell to accommodate the extra oxygen atom. This makes the formation of twins energetically favourable with CuO4 planar unit chains running alternately along the a and b axes of the parent tetragonal structure. The geometry of this twinning is such that four possible twin variants may co-exist with the twin boundaries lying in the (110) or (110) planes of the deformed structure. The traces of these planes are not mutually perpendicular and thus the crystal is strained to allow for the mismatch. It is to the nature of this strain field that this work has been addressed.Sintered samples were prepared by crushing and dispersing the resultant powder onto a very fine Cu mesh grid. Single crystals were chemically thinned to perforation. No discernible artefacts were seen and similar results were obtained with either method.

scholarly journals Orbital order drives magnetic order in 5d1 and 5d2 double perovskite Mott insulators

2021 ◽  
Vol 104 (2) ◽  
Author(s):  
Christopher Svoboda ◽  
Wenjuan Zhang ◽  
Mohit Randeria ◽  
Nandini Trivedi
Keyword(s):  
Magnetic Order ◽  
Double Perovskite ◽  
Mott Insulators ◽  
Orbital Order

scholarly journals Tuning of multiferroic order with Co doping in CuCr2O4 : Interplay between structure and orbital order

2019 ◽  
Vol 3 (10) ◽  
Author(s):  
A. Chatterjee ◽  
J. K. Dey ◽  
S. Majumdar ◽  
A.-C. Dippel ◽  
O. Gutowski ◽  
...  
Keyword(s):  
Orbital Order ◽  
Co Doping

The Role of Covalency in the Orbital-Order of 3d1 Perovskites

ChemInform ◽  
2006 ◽  
Vol 37 (52) ◽  
Author(s):  
S. Leoni ◽  
L. Craco ◽  
A. Ormeci ◽  
H. Rosner
Keyword(s):  
Orbital Order

scholarly journals Orbital Order and Ferrimagnetic Properties ofSr8CaRe3Cu4O24

2005 ◽  
Vol 94 (8) ◽  
Author(s):  
Xiangang Wan ◽  
Masanori Kohno ◽  
Xiao Hu
Keyword(s):  
Orbital Order
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