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Crystalline phases in Zr9Ni11 and Hf9Ni11 intermetallics; Investigations by perturbed angular correlation spectroscopy and ab initio calculations

Dey, Sandhya K.; Dey, Chandi Charan; Saha, Saibal; Bhattacharjee, G.; Belošević-Čavor, Jelena; Toprek, Dragan (Journal of Solid State Chemistry, 2019)

Crystalline phases formed in stoichiometric Zr9Ni11 and Hf9Ni11 have been studied by perturbed angular correlation (PAC) spectroscopy, XRD and TEM/SAED measurements. In Zr9Ni11, the phases Zr9Ni11 (∼89%) and Zr8Ni21 (∼11%) ...

Compact discrete breathers on flat-band networks

Danieli, Carlo; Maluckov, Aleksandra; Flach, Sergej (Low Temperature Physics, 2018)

Linear wave equations on flat-band networks host compact localized eigenstates (CLS). Nonlinear wave equations on translationally invariant flat-band networks can host compact discrete breathers-time-periodic and spatially ...

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Ultra-fast hadronic calorimetry

Denisov, Dmitri; Lukić, Strahinja; Mokhov, Nikolai; Striganov, Sergei; Ujić, Predrag (Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2018)

Calorimeters for particle physics experiments with integration time of a few ns will substantially improve the capability of the experiment to resolve event pileup and to reject backgrounds. In this paper the time development ...

Nonlinear symmetry breaking of Aharonov-Bohm cages

Gligorić, Goran; Beličev, Petra; Leykam, Daniel; Maluckov, Aleksandra (Physical Review A, 2019)

We study the influence of mean-field cubic nonlinearity on Aharonov-Bohm caging in a diamond lattice with synthetic magnetic flux. For sufficiently weak nonlinearities, the Aharonov-Bohm caging persists as periodic nonlinear ...

Constraining nonlocal gravity by S2 star orbits

Dialektopoulos, Konstantinos F.; Borka, Duško; Capozziello, Salvatore; Borka Jovanović, Vesna; Jovanović, Predrag (Physical Review D, 2019)

Nonlocal theories of gravity have recently drawn a lot of attention because they can suitably represent the behavior of gravitational interaction in the ultraviolet regime. Furthermore, at infrared scales, they give rise ...

The Genomic Impact of European Colonization of the Americas

Ongaro, Linda; Scliar, Marilia O; Flores, Rodrigo; Raveane, Alessandro; Marnetto, Davide; Sarno, Stefania; Gnecchi-Ruscone, Guido A; Alarcón-Riquelme, Marta E; Patin, Etienne; Wangkumhang, Pongsakorn; Hellenthal, Garrett; Gonzalez-Santos, Miguel; King, Roy J; Kouvatsi, Anastasia; Balanovsky, Oleg; Balanovska, Elena; Atramentova, Lubov; Turdikulova, Shahlo; Mastana, Sarabjit; Marjanović, Damir; Mulahasanović, Lejla; Leskovac, Andreja; Lima-Costa, Maria F; Pereira, Alexandre C; Barreto, Mauricio L; Horta, Bernardo L; Mabunda, Nédio; May, Celia A; Moreno-Estrada, Andrés; Achilli, Alessandro; Olivieri, Anna; Semino, Ornella; Tambets, Kristiina; Kivisild, Toomas; Luiselli, Donata; Torroni, Antonio; Capelli, Cristian; Tarazona-Santos, Eduardo; Metspalu, Mait; Pagani, Luca; Montinaro, Francesco (Current Biology, 2019)

The complexity of the admixture dynamics that shaped American populations is unveiled by Ongaro et al., where genetic data for more than 12,000 individuals from the continents are investigated. This study evaluates the ...