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Related papers: Comparative Raman Studies of Sr2RuO4, Sr3Ru2O7 and…

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We present a comprehensive temperature and polarization dependent inelastic light scattering (Raman) study on single crystals of two-dimensional CuCrP2S6, a layered van der Waals material exhibiting coupled magnetic and electric degrees of…

Lead sulfide is an important semiconductor that has found technological applications for over a century. Raman spectroscopy, a standard tool for the investigation and characterization of semiconductors, has limited application to this…

Materials Science · Physics 2015-05-13 P. G. Etchegoin , M. Cardona , R. Lauck , R. J. H. Clark , J. Serrano , A. H. Romero

The tri-layered perovskite Sr4Rh3O10 is reported for the first time. High-pressure and high-temperature heating (6 GPa and 1500 C) brought about successful preparation of a polycrystalline sample of the expected member at n=3 of…

Strongly Correlated Electrons · Physics 2007-05-23 K. Yamaura , Q. Huang , D. P. Young , E. Takayama-Muromachi

Long-range entanglement in quantum spin liquids (QSLs) lead to novel low energy excitations with fractionalised quantum numbers and (in 2D) statistics. Experimental detection and manipulation of these excitations present a challenge…

Strongly Correlated Electrons · Physics 2021-11-22 Srishti Pal , Arnab Seth , Piyush Sakrikar , Anzar Ali , Subhro Bhattacharjee , D. V. S. Muthu , Yogesh Singh , A. K. Sood

The Raman spectrum and particularly the Raman scattering intensities of monoclinic $\beta\text{-Ga}_2\text{O}_3$ are investigated by experiment and theory. The low symmetry of $\beta\text{-Ga}_2\text{O}_3$ results in a complex dependence of…

Materials Science · Physics 2017-02-07 Christian Kranert , Chris Sturm , Rüdiger Schmidt-Grund , Marius Grundmann

We investigate the vibrational and magnetic properties of thin layers of chromium tribromide (CrBr$_3$) with a thickness ranging from three to twenty layers (3~L to 20~L) revealed by the Raman scattering (RS) technique. Systematic…

Two-dimensional group-10 noble transition metal dichalcogenides have garnered growing attention due to their rich physical properties and promising applications across nanoelectronics, optoelectronics, and spintronics. Among them, PtX2 (X =…

Materials Science · Physics 2025-08-15 Atul G. Chakkar , Chaitanya B. Auti , Gaurav Bassi , Mukesh Kumar , Pradeep Kumar

We report a comprehensive investigation of the lattice dynamics of URu$_2$Si$_2$ as a function of temperature using Raman scattering, optical conductivity and inelastic neutron scattering measurements as well as theoretical {\it ab initio}…

The semimetal NbIrTe4 has been proposed to be a Type-II Weyl semimetal with 8 pairs of opposite Chirality Weyl nodes which are very close to the Fermi energy. This topological electronic structure is made possible because of the broken…

Hyper-Raman scattering spectra of vitreous B$_2$O$_3$ are reported and compared to Raman scattering results. The main features are indexed in terms of vibrations of structural units. Particular attention is given to the low frequency boson…

Disordered Systems and Neural Networks · Physics 2009-11-11 G. Simon , B. Hehlen , E. Courtens , E. Longueteau , R. Vacher

The vibrational properties of ErTe$_3$ were investigated using Raman spectroscopy and analyzed on the basis of peculiarities of the RTe$_3$ crystal structure. Four Raman active modes for the undistorted structure, predicted by factor-group…

Strongly Correlated Electrons · Physics 2011-01-31 N. Lazarević , Z. V. Popović , Rongwei Hu , C. Petrovic

The temperature evolution of the resonant Raman scattering from high-quality bilayer 2H-MoS$_{2}$ encapsulated in hexagonal BN flakes is presented. The observed resonant Raman scattering spectrum as initiated by the laser energy of 1.96 eV,…

We have performed polarized Raman scattering measurements on the newly discovered superconductor Nd(O,F)BiS$_2$ ($T_c = 4$ K). We observe 2 Raman active modes, with frequencies in accordance with first-principles calculations. One A$_{1g}$…

Superconductivity · Physics 2014-09-04 S. F. Wu , P. Richard , X. B. Wang , C. S. Lian , S. M. Nie , J. T. Wang , N. L. Wang , H. Ding

We present results of our study of polarized Raman scattering and infrared reflectivity of rhombohedral ceramic La_1-ySr_yMn_1-xM_xO_3 manganites in the temperature range between 77 and 320K. In our samples, a part of the Mn atoms is…

Strongly Correlated Electrons · Physics 2009-11-11 A. Dubroka , J. Humlicek , M. V. Abrashev , Z. V. Popovic , F. Sapina , A. Cantarero

Ba2YIrO6, a Mott insulator, with four valence electrons in Ir5+ d-shell (5d4) is supposed to be non-magnetic, with Jeff = 0, within the atomic physics picture. However, recent suggestions of non-zero magnetism have raised some fundamental…

Strongly Correlated Electrons · Physics 2019-01-03 Birender Singh , G. A. Cansever , T. Dey , A. Maljuk , S. Wurmehl , B. Büchner , Pradeep Kumar

We use Raman scattering to study spin, charge, and lattice dynamics in various phases of Ca_{2-x}Sr_{x}RuO_{4}. With increasing substitution of Ca by Sr in the range 0 =< x < 0.2, we observe (1) evidence for an increase of the…

Strongly Correlated Electrons · Physics 2009-11-10 H. Rho , S. L. Cooper , S. Nakatsuji , H. Fukazawa , Y. Maeno

We report on the first optical characterization of both cubic and hexagonal SrMnO$_3$. Room-temperature Raman spectra collected by means of a micro-Raman spectrometer are shown. The spectrum of the cubic compound is characterized by weak…

Strongly Correlated Electrons · Physics 2007-09-19 A. Sacchetti , M. Baldini , P. Postorino , C. Martin , A. Maignan

Lead vanadate PbVO3 is a polar crystal with a P4mm space group at ambient conditions. It is isostructural with the model soft-mode driven ferroelectric PbTiO3, but differs from it by the so-called 'supertetragonal' elongation of its unit…

Materials Science · Physics 2022-11-30 Pierre Bouvier , Alireza Sasani , Eric Bousquet , Mael Guennou , Joaquim Agostinho Moreira

For many materials, Raman spectra are intricately structured and provide valuable information about compositional stoichiometry and crystal quality. Here we use density-functional theory calculations, mass approximation, and the Raman…

Materials Science · Physics 2024-09-04 Nima Ghafari Cherati , I. Abdolhosseini Sarsari , Arsalan Hashemi , Tapio Ala-Nissila

We report interesting anomalies in the temperature dependent Raman spectra of FeSe$_{0.82}$ measured from 3K to 300K in the spectral range from 60 to 1800 cm$^{-1}$ and determine their origin using complementary first-principles density…

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