Publications de Luka Ciric | EPFL Graph Search

Interplay between disorder and electronic correlations in compositionally complex alloys

László Forró, Jan Hugo Dil, Luka Ciric, Edoardo Martino, Xavier François Mettan, Trpimir Ivsic, Davor Tolj

Owing to their exceptional mechanical, electronic, and phononic transport properties, compositionally complex alloys, including high-entropy alloys, represent an important class of materials. However, the interplay between chemical disorder and electronic ...

Nature Research2024

Mathematical Approach to Distant Correlations of Physical Observables and Its Fractal Generalisation

Luka Ciric

In this paper, the new mathematical correlation of two quantum systems that were initially allowed to interact and then separated is being formulated and analyzed. These correlations are illustrated by many examples and are also connected with fractals at ...

2022

Unvailing the spin-phonon coupling in nanocrystalline BiFeO3 by resonant two-phonon Raman active modes

Ivica Zivkovic, Luka Ciric

We report on temperature dependence of two-phonon Raman spectra in BiFeO3 nanocrystals, above and below the Neel temperature T-N using a resonant laser excitation line (lambda = 532 nm). Two-phonon modes exhibited anomalous frequency hardening and deviatio ...

ELSEVIER2021

Highly flexible CH3NH3PbI3 micro- and nanowires

László Forró, Luca Rossi, Endre Horvath, Luka Ciric, Massimo Spina, Márton Kollár, Raphaël Foschia

CH3NH3PbI3 is known to be very efficient in photon to electron conversion, which makes it extremely popular in opto-electronic applications ranging from solar cells to photodetectors. The material is very brittle in bulk, single crystalline, and thin film ...

AIP Publishing2021

Preferential out-of-plane conduction and quasi-one-dimensional electronic states in layered 1T-TaS2

László Forró, Alla Arakcheeva, Luka Ciric, Helmuth Berger, Philip Johannes Walter Moll, Andrea Pisoni, Ana Akrap, Matthias Carsten Putzke, Edoardo Martino, Konstantin Semeniuk

Layered transition metal dichalcogenides (TMDs) are commonly classified as quasi-two-dimensional materials, meaning that their electronic structure closely resembles that of an individual layer, which results in resistivity anisotropies reaching thousands. ...

2020

Morphology and Photoluminescence of CH3NH3PbI3 Deposits on Nonplanar, Strongly Curved Substrates

László Forró, Endre Horvath, Andrzej Sienkiewicz, Luka Ciric, Márton Kollár, Anastasiia Glushkova, Konstantins Mantulnikovs, Péter Krisztián Matus

2018

Mechanical response of CH3NH3PbI3 nanowires

László Forró, Endre Horvath, Luka Ciric, Bálint Náfrádi, Martial Duchamp, Massimo Spina, Márton Kollár

AIP American Institute of Physics2018

Clean, cleaved surfaces of the photovoltaic perovskite

László Forró, Henrik Moodysson Rønnow, Jeremy Luterbacher, Jan Hugo Dil, Endre Horvath, Stefan Peter Muff, Andrew Patton Weber, Luka Ciric, Benjamin Pierre Le Monnier, Bálint Náfrádi

The surface of a material is not only a window into its bulk physical properties, but also hosts unique phenomena important for understanding the properties of a solid as a whole. Surface sensitive techniques, like ARPES (Angle-resolved photoemission spect ...

Nature Research2017

Competitive ion-exchange of manganese and gadolinium in titanate nanotubes

László Forró, Endre Horvath, Luka Ciric, Bálint Náfrádi, Péter Szirmai, Márton Kollár

Homogeneous Mn2+ and Gd3+ intercalation of scroll-type trititanate nanotubes using a post-synthesis ion exchange method is reported. Compared to Mn2+, Gd3+ ion-exchange shows larger saturation intercalation levels. Upon co-doping, weak interactions between ...

Elsevier Science Bv2017

Defects and localization in chemically-derived graphene

László Forró, Arnaud Magrez, Andrzej Sienkiewicz, Richard Gaal, Luka Ciric, Jacim Jacimovic, George Cristian Vaju

We have performed electron spin resonance (ESR) measurements on a large assembly of graphene oxide (GO) and reduced graphene oxide (RGO) flakes. In GO samples the Curie tail is coming from 1.4 x 10(18) cm(-3) of localized spins. Although reduction of GO wa ...

Amer Physical Soc2012