Correlation between local lattice distortions and up-/down-conversion luminescence of (Y,Al)NbO4:Yb3+/Er3+

2021 ◽  
Author(s):  
Choong Ki Lee ◽  
Young Jin Kim
Keyword(s):  
Local Lattice ◽  
Lattice Distortions ◽  
Down Conversion

scholarly journals Phase separation and local lattice distortions analysis of charge-ordered manganese films La1-CaxMnO3- by Raman spectroscopy

2019 ◽  
Vol 127 ◽  
pp. 100-108 ◽  
Author(s):  
V.G. Trotsenko ◽  
A. Lahmar ◽  
N.V. Lyanguzov ◽  
M. El Marssi ◽  
V.I. Torgashev
Keyword(s):  
Raman Spectroscopy ◽  
Phase Separation ◽  
Local Lattice ◽  
Lattice Distortions

scholarly journals Anisotropic Fracture Dynamics Due to Local Lattice Distortions

ACS Nano ◽  
2019 ◽  
Vol 13 (5) ◽  
pp. 5693-5702 ◽  
Author(s):  
Gang Seob Jung ◽  
Shanshan Wang ◽  
Zhao Qin ◽  
Si Zhou ◽  
Mohsen Danaie ◽  
...  
Keyword(s):  
Anisotropic Fracture ◽  
Fracture Dynamics ◽  
Local Lattice ◽  
Lattice Distortions

scholarly journals Probing Phase Separation and Local Lattice Distortions in Cuprates by Raman Spectroscopy

2019 ◽  
Vol 4 (4) ◽  
pp. 87
Author(s):  
Liarokapis
Keyword(s):  
Raman Spectroscopy ◽  
Phase Separation ◽  
High Temperature ◽  
Colossal Magnetoresistance ◽  
High Temperature Superconductors ◽  
Relaxor Ferroelectrics ◽  
Order Parameters ◽  
Characteristic Family ◽  
Local Lattice ◽  
Lattice Distortions

It is generally accepted that high temperature superconductors emerge when extra carriers are introduced in the parent state, which looks like a Mott insulator. Competition of the order parameters drives the system into a poorly defined pseudogap state before acquiring the normal Fermi liquid behavior with further doping. Within the low doping level, the system has the tendency for mesoscopic phase separation, which seems to be a general characteristic in all high Tc compounds, but also in the materials of colossal magnetoresistance or the relaxor ferroelectrics. In all these systems, metastable phases can be created by tuning physical variables, such as doping or pressure, and the competing order parameters can drive the compound to various states. Structural instabilities are expected at critical points and Raman spectroscopy is ideal for detecting them, since it is a very sensitive technique for detecting small lattice modifications and instabilities. In this article, phase separation and lattice distortions are examined on the most characteristic family of high temperature superconductors, the cuprates. The effect of doping or atomic substitutions on cuprates is examined concerning the induced phase separation and hydrostatic pressure for activating small local lattice distortions at the edge of lattice instability.

Lattice Parameters and Local Lattice Distortions in fcc-Ni Solutions

2007 ◽  
Vol 38 (3) ◽  
pp. 562-569 ◽  
Author(s):  
Tao Wang ◽  
Long-Qing Chen ◽  
Zi-Kui Liu
Keyword(s):  
Lattice Parameters ◽  
Local Lattice ◽  
Lattice Distortions

Direct measurement of local lattice distortions in strained layer structures by HREM

1993 ◽  
Vol 49 (1-4) ◽  
pp. 273-285 ◽  
Author(s):  
R. Bierwolf ◽  
M. Hohenstein ◽  
F. Phillipp ◽  
O. Brandt ◽  
G.E. Crook ◽  
...  
Keyword(s):  
Direct Measurement ◽  
Strained Layer ◽  
Layer Structures ◽  
Local Lattice ◽  
Lattice Distortions
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