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Small cationic fullerene fragments, produced by electron impact ionization of C60, were mass-selected and accumulated in cryogenic Ne matrixes. Optical absorption spectroscopy of these fragments with up to 18 carbon atoms revealed linear…

Atomic and Molecular Clusters · Physics 2019-06-14 Dmitry V. Strelnikov , Manuel Link , Manfred M. Kappes

The thermodynamics of adsorption of light alkanes and alkenes (CH4, C2H6, C2H4, C3H8, and C3H6) in single-walled carbon nanotube bundles is studied by configurational-bias grand canonical Monte Carlo simulation. The bundles consist of…

Mesoscale and Nanoscale Physics · Physics 2016-05-05 Fernando J. A. L. Cruz , José P. B. Mota

The development of reversible hydrogen storage materials has become crucial for enabling carbon-neutral energy systems. Based on this, the present work investigates the hydrogen storage on the sodium-decorated P-C$_3$N (Na@P-C$_3$N), a…

Using ab initio evolutionary simulations, we predict the existence of five novel stable Li-N compounds at pressures from 0 to 100 GPa (Li13N, Li5N, Li3N2, LiN2, and LiN5). Structures of these compounds contain of isolated N ions, N2 dimers,…

Materials Science · Physics 2015-04-28 Yanqing Shen , Artem R. Oganov , Guangri Qian , Huafeng Dong , Qiang Zhu , Zhongxiang Zhou

A class of silicon carbide cage clusters with two carbon atoms inside the silicon cage and with high stabilities are presented. The theoretical formalism used is Hartree-Fock theory followed by second order many body perturbation theory to…

Atomic and Molecular Clusters · Physics 2009-11-10 M. N. Huda , A. K. Ray

Large-scale practical applications of fullerene (C60) in nanodevices could be significantly facilitated if the commercially-available micrometer-scale raw C60 powder were further processed into a one-dimensional (1D) nanowire-related…

The capacity of Ti-capped sp carbon atomic chains for use as hydrogen storage media is studied using first-principles density functional theory. The Ti atom is strongly attached at one end of the carbon chains via d-p hybridization, forming…

Materials Science · Physics 2017-03-15 Chun-Sheng Liu , Hui An , Zhi Zeng

The temperature dependences of the lifetimes of polycubanes C4+4nH8 with n = 2 - 5 up to their decomposition have been directly calculated using the molecular dynamics method. It has been shown that the activation energy of decomposition of…

Other Condensed Matter · Physics 2015-06-03 M. M. Maslov , A. I. Podlivaev , L. A. Openov

The localization of the valence electron of $H$, $Li$ and $Na$ atoms enclosed by three different fullerene molecules is studied. The structure of the fullerene molecules is used to calculate the equilibrium position of the endohedrally atom…

Chemical Physics · Physics 2016-05-04 Eloisa Cuestas , Pablo Serra

We consider transport through a single N@C60 molecule, weakly coupled to metallic leads. Employing a density-matrix formalism we derive rate equations for the occupation probabilities of many-particle states of the molecule. We calculate…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Florian Elste , Carsten Timm

The current paper presents the third part of the study devoted to composites formed by fullerene C60 and two graphene nanosheets ([C60+(5,5)] and ([C60+(9, 8)] graphene nanobuds). The formation of composites is considered from the basic…

Materials Science · Physics 2011-06-06 E. F. Sheka , L. Kh. Shaymardanova

Single-walled carbon nanotubes (SWCNTs) in their pristine form have high thermal conductivity whose further improvement has attracted a lot of interest. Some theoretical studies have suggested that the thermal conductivity of a $(10,10)$…

Materials Science · Physics 2020-02-11 Haikuan Dong , Zheyong Fan , Ping Qian , Tapio Ala-Nissila , Yanjing Su

We propose and study theoretically a novel family of cage molecules, the porous carbon nitride fullerenes (PCNFs), which can be considered the zero-dimensional counterparts of the two-dimensional porous graphitic carbon nitrides, in…

Materials Science · Physics 2025-05-30 Zacharias G. Fthenakis , Nektarios N. Lathiotakis

We report a comprehensive study on the electrochemical performance of four different Transition Metal Oxides encapsulated inside carbon nanotubes (CNT). Irrespective of the type of oxide-encapsulate, all these samples exhibit superior…

Here, we report an alternative route to achieve two dimensional electron gas (2DEG) in a semiconductor structure. It has been shown that charge accumulation on the side facets can lead to the formation of 2DEG in a network of c-axis…

Mesoscale and Nanoscale Physics · Physics 2014-10-07 H. P. Bhasker , Varun Thakur , S. M. Shivaprasad , S. Dhar

We observe magnetic trapping of atomic nitrogen (14^N) and cotrapping of ground state imidogen (14^NH, X-triplet-Sigma-). Both are loaded directly from a room temperature beam via buffer gas cooling. We trap approximately 1 * 10^11 14^N…

Atomic Physics · Physics 2009-11-13 Matthew T. Hummon , Wesley C. Campbell , Hsin-I Lu , Edem Tsikata , Yihua Wang , John M. Doyle

The models of endofullerenes C60 and C82 with silver atom or diatomic silver are calculated with ab initio SCF Hartree-Fock methods including the full geometry optimization. Ag@C60 is a bound system with positive binding energy while…

Materials Science · Physics 2007-05-23 V. S. Gurin

We report a first-principles study of hydrogen storage media consisting of calcium atoms and graphene-based nanostructures. We find that Ca atoms prefer to be individually adsorbed on the zigzag edge of graphene with a Ca-Ca distance of 10…

Materials Science · Physics 2010-02-09 Hoonkyung Lee , Jisoon Ihm , Marvin L. Cohen , Steven G. Louie

Achieving high charge carrier mobility is the holy grail of organic electronics. In this letter we report a record charge carrier mobility of 14.93 cm$^2$ V$^{-1}$s$^{-1}$ through a coronene stack encapsulated in a single walled carbon…

Soft Condensed Matter · Physics 2017-12-13 Saientan Bag , Prabal K. Maiti

We report the results of \textit{ab initio} simulations of the electronic properties of a chain of C$_{60}$ molecules encapsulated in a boron nitride nanotube - so called BN-nanopeapod. It is demonstrated that this structure can be…

Mesoscale and Nanoscale Physics · Physics 2012-12-07 Vladimir Timoshevskii , Michel Cote
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