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Accurate nanoscale detection of hydrogen is essential for understanding hydrogen-related phenomena in materials, yet conventional deuterium tracing is often complicated by residual background hydrogen. This study evaluates tritium as an…

A recent experiment [K. H. Kim, et al., Science 370, 978 (2020)] showed that it may be possible to detect a liquid-liquid phase transition (LLPT) in supercooled water by subjecting high density amorphous ice (HDA) to ultrafast heating,…

统计力学 · 物理学 2021-06-24 Nicolas Giovambattista , Peter H. Poole

Associated particle imaging (API) is a non-destructive nuclear technique for the 3D determination of isotopic distributions. By detecting the alpha particle associated with the emitted neutron in the deuterium-tritium fusion reaction with a…

仪器与探测器 · 物理学 2021-06-01 Mauricio Ayllon Unzueta , Bernhard Ludewigt , Brian Mak , Tanay Tak , Arun Persaud

Atom probe tomography is a powerful tools in investigating nanostructures such as interfaces and nanoparticles in material science. Advanced analysis tools are particularly useful for analyzing these nanostructures characterized very often…

材料科学 · 物理学 2021-05-31 Jens Keutgen , Andrew J. London , Oana Cojocaru-Miredin

Accurate extraction of liquid is the first step towards low-volume liquid delivery and nanocharacterization, which plays a significant role in biomedical research. In this study, a tip-shaped graphene nanopipette (GNP) is proposed by…

应用物理 · 物理学 2020-08-20 Shi Qiu , Yu Chen , Gediminas Gervinskas , Ross K. W. Marceau , Changxi Zheng , Gang Sha , Jing Fu

The motion of the three-phase contact line between two immiscible fluids and a solid surface arises in a variety of wetting phenomena and technological applications. One challenge in continuum theory is the effective representation of…

In this paper, we investigate a nanomechanically induced transparency (NIT) effects that arises from the coupling of a nanoelectromechanical system and a trapped ion. By confining the ion in mesoscopic traps and capacitively coupling it…

信息论 · 计算机科学 2024-02-05 E. C. Diniz , O. P. de Sá Neto

The interactions between nanoparticles and solvents play a critical role in the formation of complex, metastable nanostructures. However, direct observation of such interactions with high spatial and temporal resolution is challenging with…

We propose a novel scheme for the lithography of arbitrary, two-dimensional nanostructures via matter-wave interference. The required quantum control is provided by a pi/2-pi-pi/2 atom interferometer with an integrated atom lens system. The…

量子物理 · 物理学 2007-05-23 A. Gangat , P. Pradhan , G. Pati , M. S. Shahriar

Atoms at liquid metal surfaces are known to form layers parallel to the surface. We analyze the two-dimensional arrangement of atoms within such layers at the surface of liquid sodium, using ab initio molecular dynamics (MD) simulations…

材料科学 · 物理学 2009-11-13 Brent Walker , Nicola Marzari , Carla Molteni

Optical properties and morphology of laser generated Aluminum and Copper phthalocyanine nanoparticles (nAlPc and nCuPc) in water are experimentally studied. Near infrared laser source of nanosecond pulse duration was used for fragmentation…

综合物理 · 物理学 2019-04-12 I. I. Rakov , S. M. Pridvorova , G. A. Shafeev

We present a recently developed one-dimensional dipole lattice model that accurately captures the key properties of water in narrow nanopores. For this model, we derive three equivalent representations of the Hamiltonian that together yield…

化学物理 · 物理学 2015-05-13 Jürgen Köfinger , Gerhard Hummer , Christoph Dellago

Reactions at solid-water interfaces play a foundational role in water treatment systems, catalysis, chemical separations, and in predicting chemical fate and transport in the environment. Over the last century, experimental measurements and…

化学物理 · 物理学 2022-12-14 Anastasia G. Ilgen , Kevin Leung , Louise J. Criscenti , Jeffery A. Greathouse

Aerobreakup of fluid droplets under the influence of impulsively generated high-speed gas flow using an open-ended shock tube is studied using experiments and numerical simulations. Breakup of mm-sized droplets at high Weber number was…

流体动力学 · 物理学 2022-06-24 James Leung , Mohana Gurunadhan , Shyam Menon

In atom probe tomography (APT), atoms from the surface of a needle shape specimen are evaporated under a high electric field and analyzed via time of flight mass spectrometry and position sensitive detection. 3D reconstruction of the atom…

材料科学 · 物理学 2023-11-28 Jiayuwen Qi , Fei Xue , Emmanuelle Marquis , Wolfgang Windl

Atom Probe Tomography (APT) analysis is being actively used to provide near-atomic-scale information on the composition of complex materials in three-dimensions. In recent years, there has been a surge of interest in the technique to…

材料科学 · 物理学 2021-10-01 Su-Hyun Yoo , Se-Ho Kim , Eric Woods , Baptiste Gault , Mira Todorova , Jörg Neugebauer

We report a comprehensive study of aqueous halide adsorption on nanoparticles of gold and palladium that addresses several limitations hampering the use of atomistic modeling as a tool for understanding and improving wet-chemical synthesis…

材料科学 · 物理学 2021-08-17 Joakim Löfgren , J. Magnus Rahm , Joakim Brorsson , Paul Erhart

Atoms are ideal quantum sensors and quantum light emitters. Interfacing atoms with nanophotonic devices promises novel nanoscale sensing and quantum optical functionalities. But precise optical control of atomic states in these devices is…

Functional properties of nanomaterials strongly depend on their surface atomic structure, but they often become largely different from their bulk structure, exhibiting surface reconstructions and relaxations. However, most of the surface…

材料科学 · 物理学 2021-10-01 Juhyeok Lee , Chaehwa Jeong , Yongsoo Yang

With a two-dimensional (2D) optical mask, nanoscale patterns are created for the first time in an atom lithography process using metastable helium atoms. The internal energy of the atoms is used to locally damage a hydrofobic resist layer,…

原子物理 · 物理学 2007-05-23 S. J. H. Petra , K. A. H. van Leeuwen , L. Feenstra , W. Hogervorst , W. Vassen