Commensurate-incommensurate transition of 4He adsorbed on a single C60 molecule

The Journal of Chemical Physics
Hyeondeok Shin, Yongkyung Kwon

Abstract

Path-integral Monte Carlo calculations have been performed to study (4)He adsorption on a single C(60) molecule. Helium corrugations on the fullerene molecular surface are incorporated with the (4)He-C(60) interaction described by the sum of all (4)He-C interatomic pair potentials. Radial density distributions show a layer-by-layer growth of (4)He with the first adlayer being located at a distance of ~6.3 Å from the center of the C(60) molecule. The monolayer shows different quantum states as the number of (4)He adatoms N varies. For N = 32, we find a commensurate solid, with each of the 32 adsorption sites on the molecular surface being occupied by a single (4)He atom. Various domain-wall structures are observed as more (4)He atoms are added and the first layer crystallizes into an incommensurate solid when it is completely filled. This commensurate-incommensurate transition of the helium monolayer is found to be accompanied by re-entrant superfluid response at a low temperature of 0.31 K with the superfluidity being totally quenched at N = 32, 44, and 48. Finally, the different quantum states observed in the helium monolayer around C(60) are compared with phase diagrams proposed for the corresponding layer on a graphite surface.

References

Jul 1, 1986·Physical Review. B, Condensed Matter·T Halpin-Healy, M Kardar
May 1, 1989·Physical Review. B, Condensed Matter·G AgnoletJ D Reppy
Feb 1, 1989·Physical Review. B, Condensed Matter·D M Ceperley, E L Pollock
Feb 1, 1996·Physical Review. B, Condensed Matter·P A Crowell, J D Reppy
Jan 1, 1993·Physical Review. B, Condensed Matter·D S Greywall
Dec 16, 1991·Physical Review Letters·D S Greywall, P A Busch
Jan 6, 1992·Physical Review Letters·G ZimmerliM H Chan
May 24, 1993·Physical Review Letters·P A Crowell, J D Reppy
Sep 21, 2002·Science·Jian TangWolfgang Jäger
Jan 6, 2006·The Journal of Chemical Physics·R E ZillichK B Whaley

❮ Previous
Next ❯

Citations

Mar 1, 2013·The Journal of Chemical Physics·A KaiserO Echt
Aug 28, 2012·The Journal of Chemical Physics·S Acosta-GutiérrezJ Hernández-Rojas
Feb 22, 2013·The Journal of Chemical Physics·Hyeondeok Shin, Yongkyung Kwon
Sep 17, 2015·The Journal of Chemical Physics·Sungjin ParkYongkyung Kwon
Sep 3, 2016·The Journal of Chemical Physics·F Calvo, E Yurtsever
Oct 13, 2017·Physical Chemistry Chemical Physics : PCCP·Marcelo GoulartOlof Echt
May 16, 2014·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Sungjin Park, Yongkyung Kwon
Dec 9, 2014·The Journal of Physical Chemistry. a·Florent Calvo
Oct 17, 2013·The Journal of Physical Chemistry. a·Peter BartlOlof Echt
Aug 27, 2021·The Journal of Physical Chemistry. a·Arne SchillerPaul Scheier

❮ Previous
Next ❯

Software Mentioned

PIMC

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.