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One of the main characteristics of the new family of two-dimensional crystals of semiconducting transition metal dichalcogenides (TMD) is the strong spin-orbit interaction, which makes them very promising for future applications in…

Mesoscale and Nanoscale Physics · Physics 2015-11-11 R. Roldán , M. P. López-Sancho , E. Cappelluti , J. A. Silva-Guillén , P. Ordejón , F. Guinea

We have performed an angle-resolved photoemission study of the nodal quasi-particle spectra of the high-Tc cuprate tri-layer Bi2Sr2Ca2Cu3O10+d (Tc~ 110 K). The spectral weight Z of the nodal quasi-particle increases with decreasing…

Strongly Correlated Electrons · Physics 2015-11-25 S. Kudo , T. Yoshida , S. Ideta , K. Takashima , H. Anzai , T. Fujita , Y. Nakashima , A. Ino , M. Arita , H. Namatame , M. Taniguchi , K. M. Kojima , S. Uchida , A. Fujimori

In previous reports a structural transition from a cubic phase of Yb$_3$Rh$_4$Sn$_{13}$ - type to the superlattice variant has been reported at $\sim160$ K for a series of skutterudite-related Ce$_3$M$_4$Sn$_{13}$ compounds, where M=Co, Ru…

Materials Science · Physics 2017-01-26 L. Kalinowski , J. Goraus , A. Ślebarski

The electronic structure of crystalline CdTe, CdO, $\alpha$-TeO$_2$, CdTeO$_3$ and Cd$_3$TeO$_6$ is studied by means of first principles calculations. The band structure, total and partial density of states, and charge densities are…

Materials Science · Physics 2009-11-10 Eduardo Ariel Menendez Proupin , Gonzalo Gutierrez , Ernesto Palmero , J. L. Peña

The critical fluctuations at second order structural transitions in a bulk crystal may affect the dissipation of mechanical probes even if completely external to the crystal surface. Here we show that noncontact force microscope dissipation…

Mesoscale and Nanoscale Physics · Physics 2015-09-02 M. Kisiel , F. Pellegrini , G. E. Santoro , M. Samadashvili , R. Pawlak , A. Benassi , U. Gysin , R. Buzio , A. Gerbi , E. Meyer , E. Tosatti

Understanding the physics of strongly correlated electronic systems has been a central issue in condensed matter physics for decades. In transition metal oxides, strong correlations characteristic of narrow $d$ bands is at the origin of…

Strongly Correlated Electrons · Physics 2021-05-05 Mathieu Mirjolet , Francisco Rivadulla , Premysl Marsik , Vladislav Borisov , Roser Valenti , Josep Fontcuberta

We have carried out $^{63,65}$Cu NMR spectra measurements in magnetic field up to about 45~T on single crystal of a multiferroic triangular antiferromagnet CuCrO$_2$. The measurements were performed for magnetic fields aligned along the…

Strongly Correlated Electrons · Physics 2016-12-21 Yu. A. Sakhratov , L. E. Svistov , P. L. Kuhns , H. D. Zhou , A. P. Reyes

The electrical and structural characteristics of SmTiO3/SrTiO3/SmTiO3 and GdTiO3/SrTiO3/GdTiO3 heterostructures are compared. Both types of structures contain narrow SrTiO3 quantum wells, which accommodate a confined, high-density electron…

Strongly Correlated Electrons · Physics 2014-05-29 Jack Y. Zhang , Clayton A. Jackson , Ru Chen , Santosh Raghavan , Pouya Moetakef , Leon Balents , Susanne Stemmer

High-spin states in 135Nd were populated with the 110Pd(30Si,5n)135Nd reaction at a 30Si bombarding energy of 133 MeV. Two Delta(I)=1 bands with close excitation energies and the same parity were observed. These bands are directly linked by…

We examine the role of charge, structural, and spin degrees of freedom in the previously poorly understood phase transition in the 5$d^1$ transition-metal double perovskite Cs$_2$TaCl$_6$, using a combination of computational and…

Built-in electric fields across heterojunctions between semiconducting materials underpin the functionality of modern device technologies. Heterojunctions between semiconductors and epitaxially grown crystalline oxides provide a rich…

ZrO2:10%SiO2 thinfilms have been deposited on fused silica substrate by reactive electron beam co-evaporation technique at different oxygen partial pressure. The structural analysis shows tetragonal phase with residual tensile stress in the…

Materials Science · Physics 2020-09-22 S. Jena , R. B. Tokas , S. Thakur , N. K. Sahoo

Two-dimensional electron liquids (2DELs) have increasing technological relevance for ultrafast electronics and spintronics, yet significant gaps in their fundamental understanding are exemplified on the prototypical SrTiO$_3$. We correlate…

Motivated by recently reported experimental phase diagrams, we study the effects of CoO6 distortion on the electronic structure in NaxCoO2.yH2O. We construct the multiband tight-binding model by employing the LDA result. Analyzing this…

Superconductivity · Physics 2009-09-29 Masahito Mochizuki , Masao Ogata

The frequency dependence of dynamical conductivity of the quasi-one-dimensional structures with hydrogen bonds is studied on the basis of pseudospin-electron model. It takes into account the proton-electron interaction, external…

Statistical Mechanics · Physics 2012-04-27 R. Ya. Stetsiv

The tetragonal domain structure in SrTiO$_{3}$ (STO) is known to modulate the normal-state carrier density in LaAlO$_{3}$/SrTiO$_{3}$ (LAO/STO) heterostructures, among other electronic properties, but the effect of STO domains on the…

Superconductivity · Physics 2018-05-23 Hilary Noad , Pascal Wittlich , Jochen Mannhart , Kathryn A. Moler

The discovery that the interface between two band gap insulators LaAlO3 and SrTiO3 is highly conducting has raised an enormous interest in the field of oxide electronics. The LAlO3/SrTiO3 interface can be tuned using an electric field and…

SiAlON is a prominent example of systems suitable as hosts for creating materials for light-emitting diodes (LEDs). In this work, the electronic structure of a series of semiordered and disordered SiAlON systems is investigated by means of…

Materials Science · Physics 2022-11-14 Saleem Ayaz Khan , Ondřej Šipr , Jiří Vackář , Ján Minár

We present a systematic angle-resolved photoemission spectroscopy study of the substitution-dependence of the electronic structure of Rb$_{0.8}$Fe$_{2}$(Se$_{1-z}$S$_z$)$_2$ (z = 0, 0.5, 1), where superconductivity is continuously…

Recent experiments have shown that transition metal oxide heterostructures such as SrTiO$_3$-based interfaces, exhibit large, gate tunable, spintronic responses. Our theoretical study showcases key factors controlling the magnitude of the…

Materials Science · Physics 2020-10-14 Pierre Bruneel , Marc Gabay
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