Electronic structure of PbSc1/2Nb1/2O3 single-crystal ferroelectric-relaxor in the paraelectric and ferroelectric state

2017 ◽  
Vol 666 ◽  
pp. 1-8 ◽  
Author(s):  
A.T. Kozakov ◽  
O.E. Polozhentsev ◽  
I.P. Raevski ◽  
N. Kumar ◽  
S.I. Raevskaya ◽  
...  
2000 ◽  
Vol 42 (1) ◽  
pp. 161-164 ◽  
Author(s):  
I. P. Raevskii ◽  
V. V. Eremkin ◽  
V. G. Smotrakov ◽  
E. S. Gagarina ◽  
M. A. Malitskaya

CrystEngComm ◽  
2014 ◽  
Vol 16 (33) ◽  
pp. 7621-7625 ◽  
Author(s):  
Cody J. Gleason ◽  
Jordan M. Cox ◽  
Ian M. Walton ◽  
Jason B. Benedict

Single crystal structures, luminescent properties and electronic structure calculations of three polymorphs of the opto-electronic charge transport material 4,4′-bis(9-carbazolyl)biphenyl.


1965 ◽  
Vol 9 ◽  
pp. 354-364 ◽  
Author(s):  
D. W. Wilbur ◽  
J. W. Gofman

AbstractAn investigation has been made of the relative Kβ intensities in different chemical states of the sulfur atom using the Kα lines, with appropriate corrections, to provide the intensity standards. Both inorganic and organic compounds were included in the study. The data for each compound appear to be reliable to about ± 0.5%, while the whole series of compounds shows a variation greater than 20% in the corrected Kβ/Kα ratios. Energies were also measured, particularly the Kα energies, and their shifts were studied relative to the Kβ, intensity shifts. The work was done with a plane, single-crystal, helium-path spectrometer with proportional counter and pulse-height analysis for detection. The results are indicative of the usefulness of the method both in clarifying an uncertain chemical state and in studying the electronic structure of the bonded atom.


2021 ◽  
Vol 1 ◽  

A high-quality single crystal of rhenium oxide shows significantly large magnetoresistance, potentially originating from a unique electronic structure called “hourglass Dirac chain” protected by the symmetry of the crystal.


2013 ◽  
Vol 35 (5) ◽  
pp. 1081-1089 ◽  
Author(s):  
O.Y. Khyzhun ◽  
V.L. Bekenev ◽  
O.V. Parasyuk ◽  
S.P. Danylchuk ◽  
N.M. Denysyuk ◽  
...  

2008 ◽  
Vol 64 (2) ◽  
pp. 144-153 ◽  
Author(s):  
Hervé Muguerra ◽  
Dominique Grebille ◽  
Françoise Bourée

The structure of the thermoelectric lamellar misfit cobalt oxide [Ca2CoO3][CoO2]1.62 was refined again using single-crystal X-ray diffraction data. A new commensurate intrinsic modulation was observed involving a modulation vector orthogonal to the misfit direction (⅔,0,−⅓). The five-dimensional superspace group is C2/m(1δ0)(α0γ)gm and the structure was solved using a commensurate approximation. A new model is given involving an occupation modulation of the split sites of the [CoO] layer. This [CoO] layer can be described by triple chains running along b. The residual disorder along b can then be explained by the assumption of a local ordering with two types of clusters: CoO2 and Co5O4. A powder neutron diffraction experiment confirmed the ordering evidenced by the single-crystal X-ray diffraction study, but was not sufficient by itself to deal with this double modulated scheme. The new intrinsic modulation is destroyed by partial metal substitutions in the [CoO] layer. The structural modifications of this layer directly influence the physical properties which are related to the electronic structure of the [CoO2] layers.


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