Article
Multidisciplinary Sciences
Yosuke Minowa, Shota Aoyagi, Sosuke Inui, Tomo Nakagawa, Gamu Asaka, Makoto Tsubota, Masaaki Ashida
Summary: Impurity injection into superfluid helium is a method with diverse applications, but the interaction mechanism with dense materials is still unclear. This study provides experimental evidence of the attraction between dense silicon nanoparticles and quantized vortex cores, and observes the phenomenon of quantized vortex reconnection.
Article
Chemistry, Physical
Ernesto Garcia-Alfonso, Francesco Ancilotto, Manuel Barranco, Marti Pi, Nadine Halberstadt
Summary: We studied the collision of two superfluid He-4 droplets at non-zero initial relative velocities and impact parameters using liquid He-4 time-dependent density functional theory at zero temperature. We found that quantized vortices could be easily nucleated in these collisions, even with small droplet sizes. Vortices were produced in pairs for equal-size droplets and an odd number of vortices appeared when the colliding droplet sizes were different. Additionally, we observed coalescence of the droplets in grazing and distal collisions induced by the long-range Van der Waals attraction.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Jose Maria Escartin, Francesco Ancilotto, Manuel Barranco, Marti Pi
Summary: Within density functional theory, this study investigates the coalescence dynamics of vortex lines in superfluid helium nanodroplets, finding a rich phenomenology depending on the orientation of the vortex lines. The droplet surface plays a significant role in the dynamics, inducing additional vorticity and acting as a multiplier for vortex reconnections.
Article
Multidisciplinary Sciences
Alexandra J. Feinberg, Deepak Verma, Sean M. O. O'Connell-Lopez, Swetha Erukala, Rico Mayro P. Tanyag, Weiwu Pang, Catherine A. Saladrigas, Benjamin W. Toulson, Mario Borgwardt, Niranjan Shivaram, Ming-Fu Lin, Andre Al Haddad, Wolfgang Jager, Christoph Bostedt, Peter Walter, Oliver Gessner, Andrey F. Vilesov
Summary: Through ultrafast x-ray diffraction experiments on xenon-doped He-3 and He-4 nanodroplets, it has been demonstrated that rotational excitation leads to anisotropic and inhomogeneous interactions between the host matrix and enclosed dopants. Superfluid He-4 droplets trap embedded particles with quantum vortices, forming filament-shaped clusters, while dopants in He-3 droplets gather in diffuse, ring-shaped structures along the equator. The shapes of droplets carrying filaments or rings provide direct evidence that rotational excitation causes inhomogeneous dopant distributions.
Article
Physics, Multidisciplinary
Grigory E. Astrakharchik, Luis A. Pena Ardila, Richard Schmidt, Krzysztof Jachymski, Antonio Negretti
Summary: The authors investigate the behavior of an ionic impurity in a weakly interacting gas of bosonic atoms and identify two main phases of a polaronic regime and a strongly correlated state with many bosons bound to the ion under weak interactions. The presence of strong interactions in a many-body quantum system can lead to exotic effects, and the competition of length scales in a simple setup can give rise to a highly correlated mesoscopic state. The findings are relevant to experiments using hybrid atom-ion setups in the ultracold regime, showing vastly different polaronic properties compared to neutral quantum impurities.
COMMUNICATIONS PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Andrea Nava, Domenico Giuliano, Phong H. Nguyen, Massimo Boninsegni
Summary: This study investigates the low temperature structural and superfluid properties of 4He confined in cylindrical nanopores using quantum Monte Carlo simulations. The results show that when the pore length greatly exceeds its radius, the 4He fluid displays remarkably one-dimensional behavior without dimensional crossover, contrary to recent claims by other authors. This system could potentially provide a viable pathway for the experimental observation of exotic behaviors, such as the junctions of interacting Tomonaga-Luttinger liquids, in a suitably designed network of nanopores.
Letter
Chemistry, Multidisciplinary
Shengnan Yue, Wenjuan Yuan, Ziliang Deng, Wei Xi, Yongli Shen
Summary: This study used advanced in situ characterization techniques to observe the formation of atomic material transport channels during the coalescence process of metal nano particles. It revealed an atomic ordered arrangement growth mechanism after the completion of nucleation and explained the formation principle of the material transport channels using density functional theory.
Article
Physics, Multidisciplinary
Riccardo Panico, Guido Macorini, Lorenzo Dominici, Antonio Gianfrate, Antonio Fieramosca, Milena De Giorgi, Giuseppe Gigli, Daniele Sanvitto, Alessandra S. Lanotte, Dario Ballarini
Summary: The study investigates the behavior of a lattice of vortices in a nonequilibrium polariton fluid, revealing accelerated stretching and outward bending of the lattice and vortex trajectories due to repulsive interactions. Access to full density and phase fields allows detection of a small deviation from the Feynman-Onsager rule in terms of a transverse velocity component caused by the density gradient of the fluid envelope acting on the vortex lattice.
PHYSICAL REVIEW LETTERS
(2021)
Article
Mechanics
Sanjay Shukla, Akhilesh Kumar Verma, Vishwanath Shukla, Akshay Bhatnagar, Rahul Pandit
Summary: In this study, the pseudospectral direct numerical simulations are used to solve the three-dimensional HVBK model of superfluid helium. It is demonstrated that large vortical columns exist in both coflow and counterflow superfluid turbulence, which attract light particles and form large clusters, while expelling heavy particles. The statistical properties of inertial particles in 3D HVBK superfluid turbulence are investigated, including the mean angle between particle positions, the statistics of energy increments, and the probability distribution function of energy increments.
Article
Materials Science, Multidisciplinary
Marti Pi, Jose Maria Escartin, Francesco Ancilotto, Manuel Barranco
Summary: In the study of spinning prolate He-4 droplets, it was found that small droplets are vortex free in their equilibrium configuration, evolving towards vortex hosting as their size increases. The stability phase diagram of spinning He-4 droplets is dependent on droplet size and the number of vortices they contain, showing a clear dependence on these factors rather than universal dimensionless variables.
Article
Acoustics
S. Lahiri, D. Mandal
Summary: The efficacy of ultrasound in decontaminating ceria contaminated graphite was studied. It was found that the addition of TOMAC ionic liquid prevents surface erosion of graphite and maintains its porosity and compressive strength. Palladium nanoparticles also help in reductive dissolution of ceria layer.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Physics, Multidisciplinary
Anatoli Ulmer, Andrea Heilrath, Bjoern Senfftleben, Sean M. O. O'Connell-Lopez, Bjoern Kruse, Lennart Seiffert, Katharina Kolatzki, Bruno Langbehn, Andreas Hoffmann, Thomas M. Baumann, Rebecca Boll, Adam S. Chatterley, Alberto De Fanis, Benjamin Erk, Swetha Erukala, Alexandra J. Feinberg, Thomas Fennel, Patrik Grychtol, Robert Hartmann, Markus Ilchen, Manuel Izquierdo, Bennet Krebs, Markus Kuster, Tommaso Mazza, Jacobo Montano, Georg Noffz, Daniel E. Rivas, Dieter Schlosser, Fabian Seel, Henrik Stapelfeldt, Lothar Strueder, Josef Tiggesbaeumker, Hazem Yousef, Michael Zabel, Pawel Ziolkowski, Michael Meyer, Yevheniy Ovcharenko, Andrey F. Vilesov, Thomas Moeller, Daniela Rupp, Rico Mayro P. Tanyag
Summary: Superfluid helium nanodroplets provide an ideal environment for the formation of metastable self-organized dopant nanostructures, but the presence of vortices often hinders their formation. In this study, we demonstrate the generation of vortex-free helium nanodroplets and explore the size range in which they can be produced. By examining x-ray diffraction images of xenon-doped droplets, we find that vortex-free aggregation can prevail up to 108 atoms per droplet, providing a basis for exploring non-equilibrium nanostructure assembly at low temperatures.
PHYSICAL REVIEW LETTERS
(2023)
Article
Engineering, Aerospace
Gen Zhu, Jiang Li, Kang Li, Shihui Cheng, Zhipeng He
Summary: The impact and aggregation of multiple alumina droplets on the inner wall of the solid rocket motor were studied. It was found that the aggregated droplet would rotate when two droplets aggregate, and when three droplets aggregate, the aggregated droplet is more likely to adhere to the wall. The rebound and adhesion characteristics of the aggregated droplet are of great significance for slag deposition and two-phase flow prediction in the motor.
AEROSPACE SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yage Zhang, Chentianyi Yang, Shuai Yuan, Xiaoxue Yao, Youchuang Chao, Yang Cao, Qingchun Song, Alban Sauret, Bernard P. Binks, Ho Cheung Shum
Summary: The experiment demonstrated the influence of different particle coverings on liquid marbles in the electrocoalescence process, resulting in four different morphologies. Small particles showed little resistance to coalescence, while marbles coated by large particles demonstrated a viscous-like behavior.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Marine Bossert, Annie Grosman, Isabelle Trimaille, Fabien Souris, Victor Doebele, Aristee Benoit-Gonin, Laurent Cagnon, Panayotis Spathis, Pierre-Etienne Wolf, Etienne Rolley
Summary: The study measured sorption isotherms for helium and nitrogen in a series of porous silicon samples with varying pore structures. At high temperatures, homogeneous cavitation is the relevant evaporation mechanism, while at low temperatures, the evaporation is controlled by meniscus recession. Samples with ink-bottle pores shorter than 1 μm behave as an array of independent pores, while samples with long ink-bottle pores exhibit long-range correlations between pores. This variety of evaporation mechanisms suggests porous silicon is an anisotropic three-dimensional pore network.
Article
Chemistry, Physical
E. B. Gordon, A. V. Karabulin, V. I. Matyushenko, V. D. Sizov, T. N. Rostovshchikova, S. A. Nikolaev, E. S. Lokteva, E. V. Golubina, K. I. Maslakov, I. N. Krotova, S. A. Gurevich, V. M. Kozhevin, D. A. Yavsin
HIGH ENERGY CHEMISTRY
(2016)
Article
Engineering, Multidisciplinary
R. L. Volkov, N. I. Borgardt, V. L. Gurtovoi, A. I. Il'in, A. V. Karabulin, V. I. Matyushenko, I. I. Khodos, E. B. Gordon
INSTRUMENTS AND EXPERIMENTAL TECHNIQUES
(2016)
Article
Chemistry, Multidisciplinary
E. B. Gordon, A. V. Karabulin, V. I. Matyushenko, T. N. Rostovshchikova, S. A. Nikolaev, E. S. Lokteva
THEORETICAL AND EXPERIMENTAL CHEMISTRY
(2016)
Article
Chemistry, Physical
E. B. Gordon, A. V. Karabulin, S. A. Krasnokutski, V. I. Matyushenko, I. I. Khodos
HIGH ENERGY CHEMISTRY
(2017)
Article
Physics, Applied
E. B. Gordon, M. I. Kulish, A. V. Karabulin, V. I. Matyushenko
LOW TEMPERATURE PHYSICS
(2017)
Article
Physics, Applied
E. B. Gordon, M. I. Kulish, A. V. Karabulin, V. I. Matyushenko, E. V. Dyatlova, A. S. Gordienko, M. E. Stepanov
LOW TEMPERATURE PHYSICS
(2017)
Article
Chemistry, Multidisciplinary
Eugene B. Gordon, Alexander V. Karabulin, Vladimir I. Matyushenko, Sergey A. Nikolaev, Igor I. Khodos
MENDELEEV COMMUNICATIONS
(2017)
Article
Optics
Eugene B. Gordon, Mikhail I. Kulish, Alexander V. Karabulin, Vladimir I. Matyushenko, Maxim E. Stepanov
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2019)
Article
Optics
Eugene B. Gordon, Maxim E. Stepanov, Mikhail Kulish, Alexander Karabulin, Vladimir Matyushenko, Igor I. Khodos
LASER PHYSICS LETTERS
(2019)
Article
Chemistry, Physical
Eugene B. Gordon, Alexander V. Karabulin, Mikhail I. Kulish, Vladimir I. Matyushenko, Maxim E. Stepanov
JOURNAL OF PHYSICAL CHEMISTRY A
(2017)
Article
Chemistry, Inorganic & Nuclear
E. B. Gordon, A. V. Karabulin, V. I. Matyushenko, T. N. Rostovshchikova, S. A. Nikolaev, E. S. Lokteva, E. V. Golubina
Correction
Chemistry, Physical
Chen Luo, Yan Shao, Hua Yu, Hong-zhi Ma, Yu-hao Zhang, Long Gu, Bo Yin, Ming-bo Yang
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Stefano Borocci, Armando Camerlingo, Felice Grandinetti, Maria Rutigliano, Nico Sanna
Summary: The complexes of He, Ne, Ar, Kr, and Xe with B3N3H6 were investigated using MP2, CCSD(T), and SAPT ab initio methods. The complexes can be described as mono-, di-, and tri-coordinated to the N atoms, with stability following the order N-mono < N-di < N-tri. The interactions are dominated by dispersion and the binding energies are within the range of 1 or 2 kcal mol(-1). The results were compared with a recent DFT study on larger BN sheets complexes [Phys. Chem. Chem. Phys. 24 (2022) 2554-2566.].
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
V. Nagarajan, R. Bhuvaneswari, R. Chandiramouli
Summary: In this study, stable phosphoborane was used as a sensor to detect isobutane and n-propane in Liquefied Petroleum Gas (LPG). Phosphoborane demonstrated structural stability and semiconducting nature, and exhibited promising adsorption properties for the LPG molecules.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Xiaoxi Xu, Zijiang Yang, Bayaer Buren, Maodu Chen
Summary: In this study, the time-dependent wave packet method was used to investigate the reaction channels and mechanisms of Ca+ + HD. The results show that the CaH+ + D reaction channel plays a primary role, which is consistent with experimental results. Complex forming and direct-abstraction reaction mechanisms exist in this reaction process.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Keshab Pandey, Hae Kyung Jeong
Summary: A free-standing silicon-carbon nanofiber composite film was synthesized and investigated for supercapacitor applications. It exhibited high specific capacitance, energy density, and power density. After 5000 cycles, the film showed excellent specific capacitance retention and Coulombic efficiency.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Xinyu Zhang, Haosong Li, Xiaoyu Cao, Jing Gao, Yong Wei, Jianzhuo Zhu
Summary: The evaporation behavior of nanosized water aggregations on two-dimensional electroneutral solid surfaces with different surface polar unit densities was investigated. The results showed that the evaporation rate changes non-monotonically with the surface polar unit density, and the minimum evaporation rate is obtained when the surface has a modest surface polar unit ratio of 66.7%.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Yanyan Xu, Rui Dai, Xiaojie Wang, Zhijun Qiao, Haowei Wen, Dianbo Ruan, Yuzuo Wang
Summary: This article presents an innovative solvothermal sodium insertion method for synthesizing Triphylite-NaFePO4, which demonstrates optimal electrochemical performance in sodium-ion batteries.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Meiyi Jiang, Kun Yang, Yancheng Liu, Li Yao
Summary: The geometric structure and electronic properties of transition metal M (M = Cu, Fe, Mn)-TiO2 (101) surface adsorbed by NO2 and N2O were calculated by density functional theory (DFT) and DFT + U theory. The results showed that the adsorption of NO2 and N2O on Mn and Fe atoms is more stable, and a large number of active electrons are formed around these atoms, facilitating the catalytic reactions.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Sergey A. Vyrko, Yulia G. Polynskaya, Nikita A. Matsokin, Andrey M. Popov, Andrey A. Knizhnik, Nikolai A. Poklonski, Yurii E. Lozovik
Summary: In this study, carbon nanobracelets, which are cyclic molecules composed of alternating polycyclic regions and double carbon chains, were investigated using spin-polarized density functional theory. The results show that carbon nanobracelets with odd number of monomers exhibit distinct electronic energy levels, band gaps, and carbon chain deformation compared to those with even number of monomers.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Chanchan Wang, Quan Yang, Yanzhi Ding, Xiaoyong Lu, Dong Tian
Summary: It has been found that the introduction of buffer layers improves the electrical performance of solid oxide fuel cells (SSOFCs). In this study, varying ratios of Gd-doped CeO2 were used as buffer layers in YSZ-based SSOFCs. The results demonstrate that the performance of SSOFCs is enhanced when a buffer layer is added, with the highest performance achieved using Ce0.8Gd0.2O2-delta (GDC20) as the buffer layer. This suggests that the use of GDC series buffer layers is an attractive strategy to optimize performance loss due to electrolyte-electrode interactions.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Wang Li, Yi-Fan Zhang, Jia-Bin Huang, Chang-Yang Wang, Feng Zhang, Jiu-Zhong Yang, Long Zhao
Summary: The gas-phase reaction of propargyl with vinylacetylene was investigated using synchrotron photoionization and molecular-beam mass spectrometry methodologies. The formation mechanisms of the resulting cyclic structures were examined using quantum computations. Two previously unidentified isomers were detected and identified for the first time.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Avijit Pramanik, Sanchita Kundu, Olorunsola Praise Kolawole, Kaelin Gates, Paresh Chandra Ray
Summary: This study investigates the influence of aspect ratio and quantum confinement on the single-photon and two-photon absorption cross-section of perovskite CsPbI3 nanorods. Experimental data shows that CsPbI3 nanorods have an extremely high two-photon absorption cross-section, significantly surpassing organic chromophores and other CsPbBr3 nanocrystals. Moreover, adjusting the aspect ratio can significantly enhance the absorption ability. Additionally, the study also reveals a moderate quantum confinement effect on the single-photon and two-photon absorption cross-section of the nanorods.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Hyon-Tae Pak, Jin-A Choe, Kyong-Sik Ju, Yong -Son Rim
Summary: Drug-loaded cellulose diacetate (CDA) membranes were prepared using different compositions of mixed solvent. The microstructure and performance of the membranes were investigated, and a method to predict drug release properties was proposed. The results showed that the composition of the mixed solvent significantly affected the overall performance of CDA membranes, and the release rates of drugs were related to Δdelta and the intrinsic viscosity of CDA.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Gabriella E. Ravin, E. Curotto
Summary: We have developed a systematic approach to optimize the training set sizes for neural networks in fitting ab initio potential energy surfaces. Using this approach, we have constructed several spectroscopic quality potential energy surfaces for [Li(H2)n]+, n = 1 - 9. The ground state properties have been computed for all the systems and selected states.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Guohua Xu, Lei Xu, Feng Zhang, Chunling Yu, Yu Song
Summary: NiS1.03@Ni7S6/carbon composite was successfully prepared using corn stalk as a carbon source via a simple adsorption-sulphurization process. The composite exhibited a specific capacitance of 1554.6 F/g at 1 A/g as a supercapacitor electrode, with a capacitance retention rate of 80.4% after 5000 cycles. Furthermore, the NiS1.03@Ni7S6/carbon//AC asymmetric supercapacitor showed a high energy density of 41.2 Wh kg-1 at a power density of 750 W kg-1, and excellent cycling stability with 86.8% capacitance retention after 10,000 cycles.
CHEMICAL PHYSICS LETTERS
(2024)