raman active phonon
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scholarly journals Anharmonicity Induced Faster Decay of Hot Phonons in Rutile TiO2 Nanorods: A Raman Spectromicroscopic study

2022 ◽  
Author(s):  
C Rani ◽  
Devesh Kumar Pathak ◽  
M. Tanwar ◽  
S Kandpal ◽  
T Ghosh ◽  
...  
Keyword(s):  
Tio2 Nanorods ◽  
Phonon Modes ◽  
Temperature Dependent ◽  
Rutile Tio2 ◽  
Hot Phonons ◽  
Thermal Perturbations ◽  
Raman Active Phonon

Temperature dependent Raman spectromicroscopy from rutile TiO2 nanorods has been studied here to understand the effect of thermal perturbations on different Raman active phonon modes. The TiO2 nanorods, characterized using...

scholarly journals Bandgap widening and behavior of Raman-active phonon modes of cubic single-crystalline (In,Ga)2O3 alloy films

2021 ◽  
Vol 119 (4) ◽  
pp. 042101
Author(s):  
Johannes Feldl ◽  
Martin Feneberg ◽  
Alexandra Papadogianni ◽  
Jonas Lähnemann ◽  
Takahiro Nagata ◽  
...  
Keyword(s):  
Phonon Modes ◽  
Single Crystalline ◽  
Alloy Films ◽  
And Behavior ◽  
Raman Active Phonon

scholarly journals Isotopic study of Raman active phonon modes in β-Ga2O3

2021 ◽  
Author(s):  
Benjamin M. Janzen ◽  
Piero Mazzolini ◽  
Roland Gillen ◽  
Andreas Falkenstein ◽  
Manfred Martin ◽  
...  
Keyword(s):  
Point Defects ◽  
Phonon Modes ◽  
Isotopic Study ◽  
Raman Modes ◽  
O Isotope ◽  
Raman Active Phonon ◽  
Theory And Experiment

The Raman-active phonon modes of β-Ga2O3 in two O isotope compositions are studied by theory and experiment. Raman modes dominated by different, inequivalent O lattice sites were identified and can be used for the investigation of point defects.

scholarly journals Comprehensive Raman study of orthorhombic κ/ε-Ga2O3 and the impact of rotational domains

2021 ◽  
Author(s):  
Benjamin M. Janzen ◽  
Piero Mazzolini ◽  
Roland Gillen ◽  
Vivien F. S. Peltason ◽  
Linus P. Grote ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Perturbation Theory ◽  
Gallium Oxide ◽  
Density Functional ◽  
Phonon Modes ◽  
Micro Raman Spectroscopy ◽  
Density Functional Perturbation Theory ◽  
Raman Study ◽  
The Impact ◽  
Raman Active Phonon

The Raman-active phonon modes of orthorhombic gallium oxide (κ/ε-Ga2O3) are investigated by combination of polarized micro-Raman spectroscopy and density functional perturbation theory (DFPT) calculations.

scholarly journals Anharmonicity in Raman-active phonon modes in atomically thin MoS2

2020 ◽  
Vol 101 (20) ◽  
Author(s):  
Suman Sarkar ◽  
Indrajit Maity ◽  
H. L. Pradeepa ◽  
Goutham Nayak ◽  
Laetitia Marty ◽  
...  
Keyword(s):  
Phonon Modes ◽  
Raman Active Phonon

scholarly journals Stress, strain and Raman shifts

2019 ◽  
Vol 234 (2) ◽  
pp. 129-140 ◽  
Author(s):  
Ross J. Angel ◽  
Mara Murri ◽  
Boriana Mihailova ◽  
Matteo Alvaro
Keyword(s):  
Computer Program ◽  
Phonon Mode ◽  
Phonon Modes ◽  
Stress Strain ◽  
Symmetry Constraints ◽  
Raman Active Phonon ◽  
Elastic Strains

AbstractThe concept of the phonon-mode Grüneisen tensor is reviewed as method to determine the elastic strains across crystals from the changes in the wavenumbers of Raman-active phonon modes relative to an unstrained crystal. The symmetry constraints on the phonon-mode Grüneisen tensor are discussed and the consequences for which combinations of strains can be determined by this method are stated. A computer program for Windows, stRAinMAN, has been written to calculate strains from changes in Raman (or other phonon) mode wavenumbers, and vice-versa. It can be downloaded for free from www.rossangel.net.

Electrically induced liquid–liquid phase transition in water at room temperature

2019 ◽  
Vol 21 (34) ◽  
pp. 18541-18550 ◽  
Author(s):  
Adam D. Wexler ◽  
Elmar C. Fuchs ◽  
Jakob Woisetschläger ◽  
Giuseppe Vitiello
Keyword(s):  
Phase Transition ◽  
Liquid Phase ◽  
Electric Field ◽  
Room Temperature ◽  
Coherent Control ◽  
Inhomogeneous Electric Field ◽  
Liquid Phase Transition ◽  
Raman Active Phonon

An inhomogeneous electric field induces Raman active phonon conserved polarization currents in water potentiating coherent control of liquid–liquid phase transition.

Probing the impact of magnetic interactions on the lattice dynamics of two-dimensional Ti2X (X = C, N) MXenes

2018 ◽  
Vol 20 (11) ◽  
pp. 7754-7763 ◽  
Author(s):  
Małgorzata Sternik ◽  
Urszula D. Wdowik
Keyword(s):  
Lattice Dynamics ◽  
Magnetic Interactions ◽  
Two Dimensional ◽  
Phonon Modes ◽  
The Impact ◽  
Raman Active Phonon

Magnetic interactions play an important role in the intensities of the Raman-active phonon modes in Ti2X (X = C, N) monolayers.

scholarly journals Terahertz Sum-Frequency Excitation of a Raman-Active Phonon

2017 ◽  
Vol 119 (12) ◽  
Author(s):  
Sebastian Maehrlein ◽  
Alexander Paarmann ◽  
Martin Wolf ◽  
Tobias Kampfrath
Keyword(s):  
Sum Frequency ◽  
Frequency Excitation ◽  
Raman Active Phonon

Optical properties and Raman-active phonon modes of two-dimensional honeycomb Zintl phases

2017 ◽  
Vol 5 (43) ◽  
pp. 11259-11266 ◽  
Author(s):  
M. Q. Arguilla ◽  
N. D. Cultrara ◽  
M. R. Scudder ◽  
S. Jiang ◽  
R. D. Ross ◽  
...  
Keyword(s):  
Optical Properties ◽  
Raman Spectra ◽  
Band Gaps ◽  
Stacking Sequence ◽  
Two Dimensional ◽  
Phonon Modes ◽  
Zintl Phases ◽  
Group 13 ◽  
Raman Active Phonon

We study how structure and stacking sequence influences the Raman spectra and band gaps in layered intermetallic Zintl phases comprised from honeycomb sheets of group 13, 14, and 15 elements.

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