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Related papers: Boron Nitride Nanomesh: A template for Nano-ice

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Large, high-quality layers of hexagonal boron nitride (hBN) are a prerequisite for further advancement in scientific investigation and technological utilization of this exceptional 2D material. Here we address this demand by investigating…

Mesoscale and Nanoscale Physics · Physics 2019-12-23 Marin Petrović , Michael Horn-von Hoegen , Frank-J. Meyer zu Heringdorf

The beryllides MBe13 (M = rare earths and actinides) crystallize in a NaZn13-type cubic structure, which can be categorized as a cage-structured compound. In this study, powder X-ray diffraction measurements have been performed on LaBe13,…

Strongly Correlated Electrons · Physics 2018-05-03 Hiroyuki Hidaka , Ryoma Nagata , Chihiro Tabata , Yusei Shimizu , Naoyuki Miura , Tatsuya Yanagisawa , Hiroshi Amitsuka

In recent experiments with a superconducting nanosized Pb bridge formed between a scanning tunneling microscope tip and a substrate, superconductivity has been detected at magnetic fields, which are few times larger than the third (surface)…

Superconductivity · Physics 2009-10-31 V. R. Misko , V. M. Fomin , J. T. Devreese

The peculiar linear temperature-dependent swelling of core-shell microgels has been conjectured to be linked to the core-shell architecture combining materials of different transition temperatures. Here the structure of pNIPMAM-core and…

Temperature dependent crystal structures of the quasi-one-dimensional ladder material BaFe2Se3 are examined. Combining the optical second harmonic generation (SHG) experiments and neutron diffraction measurements, we elucidate the crystal…

Because of its novel physical properties, two-dimensional materials have attracted great attention. From first-principle calculations and vibration frequenceis analysis, we predict a new family of two-dimensional materials based on the idea…

Materials Science · Physics 2015-07-24 Jason Lee , Wen-Chuan Tian , Wei-Liang Wang , Dao-Xin Yao

In this paper, we report a new boron nitride molecular structure called BN-nanobelt, an inorganic analog of (12) cyclophenacene synthesized in 2017. An extensive investigation using Density Functional Theory (DFT) and Quantum Molecular…

Materials Science · Physics 2022-01-03 Leonardo S. Barbosa , Bruna , C. C. de Almeida , Edvan Moreira , David L. Azevedo

Several calorimetric measurements have shown that 1-ethyl-3-methylimidazolium dicyanamide, [C2C1im][N(CN)2], is a glass-forming liquid, even though it is a low-viscous liquid at room temperature. Here we found slow crystallization during…

Chemical Physics · Physics 2021-07-28 Kalil Bernardino , Thamires A. Lima , Mauro C. C. Ribeiro

Nanoscale polar structures are significant for understanding polarization processes in low-dimensional systems and hold potential for developing high-performance electronics. Here, we demonstrate a polar vortex superstructure arising from…

Understanding water-metal interactions is central to disciplines spanning catalysis, electrochemistry, and atmospheric science. Monolayer ice phases are well established on hydrophilic surfaces, where strong water-substrate interactions…

The crystal structure of boron is unique among chemical elements, highly complex, and imperfectly known. Experimentalists report the beta-rhombohedral (black) form is stable over all temperatures from absolute zero to melting. However,…

Materials Science · Physics 2009-11-13 M. Widom , M. Mihalkovic

Rhombohedral B$_{12}$ unit is viewed as a host matrix embedding linear tri-atomic arrangements of elements (E) resulting in a relatively large family of boron-rich compounds with B$_{12}${E-E-E} generic formulation. The present work focuses…

Materials Science · Physics 2021-01-13 Samir F. Matar , Vladimir L. Solozhenko

We explore by molecular dynamic simulations the thermodynamical behavior of an anomalous fluid confined inside rigid and flexible nanopores. The fluid is modeled by a two length scale potential. In the bulk this system exhibits the density…

Soft Condensed Matter · Physics 2014-02-05 Jose Rafael Bordin , Leandro B. Krott , Marcia C. Barbosa

A neutron powder diffraction study has been carried out on Pb(Zr0.52Ti0.48)O3 in order to resolve an ongoing controversy about the nature of the low-temperature structure of this strongly-piezoelectric and technologically-important…

Materials Science · Physics 2009-11-10 D. E. Cox , B. Noheda , G. Shirane

We investigate whether an interpretation of water's thermodynamics [Science, 319, 582 (2008)] by using analogy with the binary metal alloys lambda-type ordering transition or buckminsterfullerene's orientational-ordering transition has…

Soft Condensed Matter · Physics 2008-07-01 Francesco Mallamace , Elpidio Tombari , Giuseppe Salvetti , Gyan P. Johari

Methanol-water liquid mixtures have been investigated by high-energy synchrotron X-ray and neutron diffraction at low temperatures. We are thus able to report the first complete sets of both X-ray and neutron weighted total scattering…

We describe calculations of the properties of quantum fluids inside nanotubes of various sizes. Very small radius ($R$) pores confine the gases to a line, so that a one-dimensional (1D) approximation is applicable; the low temperature…

Statistical Mechanics · Physics 2007-05-23 Nathan M. Urban , Milton W. Cole

Methane (CH_4) gas sensing properties of novel vanadium dioxide (VO_2) nanostructured films is reported for the first time. The single phase nanostructures are synthesized by pulsed dc-magnetron sputtering of V target followed by oxidation…

Materials Science · Physics 2015-09-02 A. K. Prasad , S. Amirthapandian , S. Dhara , S. Dash , N. Murali , A. K. Tyagi

For the first time, ordered polar molecules confined in monolayer-deep rectangular pits produced on an alkali halide surface by electron irradiation have been resolved at room temperature by non-contact atomic force microscopy. Molecules…

The interaction of hydrogen and metals continues to be industrially relevant and is a critical part of creating and supporting a safety case for nuclear reactor operation. In the present work, we explore hydrogen storage and hydride…

Materials Science · Physics 2021-09-24 Wenjun Lu , Paraskevas Kontis , Siyang Wang , Ruth Birch , Mark Wenman , Baptiste Gault , T. Ben Britton
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