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Akademický článek

Exact closed-form analytic wave functions in two dimensions: Contact-interacting fermionic spinful ultracold atoms in a rapidly rotating trap

Autor: Constantine Yannouleas, Uzi Landman

Publikováno v: Physical Review Research, Vol 3, Iss 3, p L032028 (2021)

Exact two-dimensional analytic wave functions for an arbitrary number N of contact-interacting lowest-Landau-level (LLL) spinful fermions are derived with the use of combined numerical and symbolic computational approaches via analysis of exact Hamil

Externí odkaz: https://doaj.org/article/8442be319c3b494686bf861511af2e1f

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Akademický článek

M4Au12Ag32(p-MBA)30 (M = Na, Cs) bimetallic monolayer-protected clusters: synthesis and structure

Autor: Brian E. Conn, Badri Bhattarai, Aydar Atnagulov, Bokwon Yoon, Uzi Landman, Terry P. Bigioni

Publikováno v: Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 7, Pp 987-993 (2018)

Crystals of M4Au12Ag32(p-MBA)30 bimetallic monolayer-protected clusters (MPCs), where p-MBA is p-mercaptobenzoic acid and M+ is a counter-cation (M = Na, Cs) have been grown and their structure determined. The molecular structure of triacontakis[(4-c

Externí odkaz: https://doaj.org/article/5a52ec1a795346e4a8b3e964d623df73

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Akademický článek

Structure sensitivity in the nonscalable regime explored via catalysed ethylene hydrogenation on supported platinum nanoclusters

Autor: Andrew S. Crampton, Marian D. Rötzer, Claron J. Ridge, Florian F. Schweinberger, Ueli Heiz, Bokwon Yoon, Uzi Landman

Publikováno v: Nature Communications, Vol 7, Iss 1, Pp 1-12 (2016)

Ethylene hydrogenation often serves as an example of a structure insensitive reaction. Here, the authors study the reaction, catalyzed by a range of size-selected platinum nanocatalysts, and demonstrate that in the sub-nanometer regime particle size

Externí odkaz: https://doaj.org/article/12521ab4167841e69a91cf143e5623b6

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Akademický článek

Ultracold few fermionic atoms in needle-shaped double wells: spin chains and resonating spin clusters from microscopic Hamiltonians emulated via antiferromagnetic Heisenberg and t–J models

Autor: Constantine Yannouleas, Benedikt B Brandt, Uzi Landman

Publikováno v: New Journal of Physics, Vol 18, Iss 7, p 073018 (2016)

Advances with trapped ultracold atoms intensified interest in simulating complex physical phenomena, including quantum magnetism and transitions from itinerant to non-itinerant behavior. Here we show formation of antiferromagnetic ground states of fe

Externí odkaz: https://doaj.org/article/0f357ec463544926b88d6eb44fad566e

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Spin-Gated Selectivity of the Water Oxidation Reaction Mediated by Free Pentameric CaxMn5–xO5+ Clusters

Autor: Sandra M. Lang, Irene Helzel, Thorsten M. Bernhardt, Robert N. Barnett, Uzi Landman

Publikováno v: Journal of the American Chemical Society. 144:15339-15347

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10aad8d19b1939e7d8dd914248369eb6
https://doi.org/10.1021/jacs.2c06562

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Interfacial Segregation, Structure, and Diffusion of n-Alkane Mixture Films Adsorbed on Smooth and Rough Gold Surfaces

Autor: Souvik Math, Jianping Gao, Uzi Landman

Publikováno v: The Journal of Physical Chemistry C. 126:4209-4219

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c98fa574f0fa6b3d28f44c9e4e2f2ec6
https://doi.org/10.1021/acs.jpcc.1c10471

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Structure Relaxation and Liquidlike Enhanced Cu Diffusion at the Surface of β-Cu2S Chalcocite

Autor: Mei-Yin Chou, Jing Wang, Uzi Landman, Jianping Gao

Publikováno v: Nano Letters. 21:8895-8900

The hitherto unexplored surface structural and dynamical properties of the thermoelectric material β-Cu2S chalcocite, are uncovered using ab initio molecular dynamics simulations at 450 K. The material exhibits a hybrid crystalline-liquid behavior,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::358383889d6883bdf0782c04edfc621f
https://doi.org/10.1021/acs.nanolett.1c03504

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Nanomolecular Metallurgy: Transformation from Au144(SCH2CH2Ph)60 to Au279(SPh-tBu)84

Autor: Luca Sementa, Naga Arjun Sakthivel, Amala Dass, Kalpani Hirunika Wijesinghe, Bokwon Yoon, Alessandro Fortunelli, Uzi Landman

Publikováno v: Journal of physical chemistry. C. (Online) 125 (2021): 20488–20502. doi:10.1021/acs.jpcc.1c04228
info:cnr-pdr/source/autori:Wijesinghe K.H.; Sakthivel N.A.; Sementa L.; Yoon B.; Fortunelli A.; Landman U.; Dass A./titolo:Nanomolecular Metallurgy: Transformation from Au144(SCH2CH2Ph)60 to Au279(SPh-tBu)84/doi:10.1021%2Facs.jpcc.1c04228/rivista:Journal of physical chemistry. C. (Online)/anno:2021/pagina_da:20488/pagina_a:20502/intervallo_pagine:20488–20502/volume:125

Transformation brought about by ligand exchange is one of the effective methods for the synthesis of gold-thiolate nanomolecules (AuNMs). In this method, the AuNMs are treated with an excess exogenous thiol at an elevated temperature. It has been fou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::555390c3272787726ac85e6a2ebaf0f7
https://doi.org/10.1021/acs.jpcc.1c04228

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Molecular formations and spectra due to electron correlations in three-electron hybrid double-well qubits

Autor: Constantine Yannouleas, Uzi Landman

We show that systematic full configuration-interaction (FCI) calculations enable prediction of the energy spectra and the intrinsic spatial and spin structures of the many-body wave functions as a function of the detuning parameter for the case of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b4b189e2acd8ddef05aac95cfcfd368
http://arxiv.org/abs/2204.02243

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