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Monolayer hexagonal boron nitride is a prototypical planar 2-dimensional system material and has been the subject of many investigations of its exceptional vibrational, spectroscopic and transport properties. The lattice thermal…

Materials Science · Physics 2025-06-18 José Pedro Alvarinhas Batista , Matthieu J. Verstraete , Aloïs Castellano

A recently formulated thermal model for hadron production in heavy-ion collisions in the few-GeV energy regime is combined with the idea that some part of protons and neutrons present in the original thermal system forms deuterons via the…

Nuclear Theory · Physics 2023-12-22 Wojciech Florkowski , Radoslaw Ryblewski , Piotr Salabura , Nikodem Witkowski

Path integral Monte Carlo (PIMC) simulations with very simple models were used in order to unveil the physics behind the isotope effects in H-bonded ferroelectrics. First, we studied geometrical effects in the H-bonds caused by deuteration…

Materials Science · Physics 2023-01-05 F. Torresi , J. Lasave , S. Koval

In this letter, we report the effects of irradiating hydrogen-terminated diamond surfaces with protons. We study the electrical behavior of the two-dimensional hole gas that forms on the diamond surface as a result of hydrogen-termination.…

The two-dimensional atomically thin insulator hexagonal boron nitride (h-BN) constitutes a new paradigm in tunnel based devices. A large band gap along with its atomically flat nature without dangling bonds or interface trap states makes it…

Mesoscale and Nanoscale Physics · Physics 2014-11-14 André Dankert , M. Venkata Kamalakar , Abdul Wajid , R. S. Patel , Saroj P. Dash

Transition metal di-iodides such as FeI2, NiI2 and CoI2 are an emerging class of 2D magnets exhibiting rich and diverse magnetic behaviour, but their study at the monolayer limit has been severely hindered by fabrication challenges due to…

We show that the internal quality factors of high impedance superconducting resonators made of granular aluminum can be improved by coating them with micrometric films of solid para-hydrogen molecular crystals. We attribute the average…

We report on a two-step ultrahigh vacuum chemical vapor deposition synthesis of a vertical Ir(111)/borophene/hexagonal boron nitride heterostructure, using borazine as a single-source precursor. The process takes advantage of the finite…

Isotopic enrichment offers cutting-edge properties of materials opening exciting research and development opportunities. In semiconductors, reached progress of ultimate control in growth and doping techniques follows nowadays the high level…

The mean energy $W$ required to produce an ion pair in molecular hydrogen has been obtained for protons in the energy range between 1 MeV and 4.5 MeV. The W values were derived from the existing experimental data on elastic {\it $\pi^-$p}…

Instrumentation and Detectors · Physics 2014-05-23 G. A. Korolev , G. D. Alkhazov , A. V. Dobrovolsky , A. V. Khanzadeev , A. A. Vorobyov

Water ice is abundant both astrophysically, for example in molecular clouds, and in planetary systems. The Kuiper belt objects, many satellites of the outer solar system, the nuclei of comets and some planetary rings are all known to be…

Astrophysics · Physics 2009-11-13 Weijun Zheng , David Jewitt , Ralf I. Kaiser

In this work, we foresee the structure of a new class of borophenes with smaller 2D densities of atoms than those explored so far for 2D boron crystals. Boron atoms in the porous borophenes tend to be $5$-coordinated in contrast to commonly…

Materials Science · Physics 2021-11-25 T. Tarkowski , M. Marchwiany , N. Gonzalez Szwacki

Clusters consisting of small molecules containing hydrogen do eject fast protons when illuminated by short X-ray pulses. A suitable overall charging of the cluster controlled by the X-ray intensity induces electron migration from the…

Atomic and Molecular Clusters · Physics 2013-09-19 Pierfrancesco Di Cintio , Ulf Saalmann , Jan-Michael Rost

We report cross-validated measurements of the isotope effect on dielectric relaxation for four isotopologues of ice and water, including the 1-10^5 Hz region, in which only sporadic and inconsistent measurements were previously available.…

Understanding high-pressure transitions in prototypical linear diatomic molecules, such as hydrogen, nitrogen, and oxygen, is an important objective in high-pressure physics. Recent ultrahigh-pressure study on hydrogen revealed that there…

Materials Science · Physics 2019-10-31 Shan Liu , Meifang Pu , Qiqi Tang , Feng Zhang , Binbin Wu , Li Lei

It is shown that the slope of the repulsive part of the interaction potential between hydrogen atoms above the dissociation limit decreases with decreasing internuclear separation. Such a form of the repulsive potential explains the…

Chemical Physics · Physics 2015-10-13 Alexander V. Mitin

Novel uses for 2-dimensional materials like graphene and hexagonal boron nitride (h-BN) are being frequently discovered especially for membrane and catalysis applications. Still however, a great deal remains to be understood about the…

Materials Science · Physics 2016-05-25 Yasmine S. Al-Hamdani , Dario Alfè , O. Anatole von Lilienfeld , Angelos Michaelides

When irradiated with violet light, hexaazatrinaphthylene (HATN) extracts a hydrogen atom from an alcohol forming a long-living hydrogenated species. The apparent kinetic isotope effect for fluorescence decay time in deuterated methanol…

Chemical Physics · Physics 2022-05-30 Olaf Morawski , Paweł Gawryś , Jarosław Sadło , Andrzej L. Sobolewski

The deuterium fractionation of gas-phase molecules in hot cores is believed to reflect the composition of interstellar ices. The deuteration of methanol is a major puzzle, however, because the isotopologue ratio [CH2DOH]/[CH3OD], which is…

Solar and Stellar Astrophysics · Physics 2015-12-02 A. Faure , M. Faure , P. Theulé , E. Quirico , B. Schmitt

Recent work investigated graphene's hydrogenation with independent control of the electric field, E, and charge density, n, in the crystal and showed that the process is controlled by n. Here, we demonstrate layer-selective…