Ab Initio Investigation of Nonlinear Mode Coupling in C60

The Journal of Physical Chemistry Letters
Antonia KaramatskouOriol Vendrell

Abstract

Strong light fields may be used to control molecular structure, thus providing a route to new, light-induced phases of matter. In this context, we present an ab initio molecular dynamics investigation of nonlinear mode coupling in C60 and show that, under suitable conditions, resonant infrared excitation induces significant structural changes in the system. Surprisingly, exciting the highest-frequency infrared mode at field strengths employed in a recent experiment [Nature 2016, 530, 461-464], we observe no significant structural change. However, when targeting the first two infrared modes using stronger fields, all Raman modes gain energy through nonlinear coupling to the infrared modes, leading to large-amplitude vibrational excitations. We find a strong response of the Hg(5) mode, which is symmetric with respect to the equilibrium structure. For sufficiently strong field, it is of the same order as the infrared modes' excitation. This encourages further investigations into the light-induced superconducting properties of alkali-doped fullerenes.

References

May 15, 1996·Physical Review. B, Condensed Matter·J Fabian
Aug 15, 1991·Physical Review. B, Condensed Matter·G B AdamsD R Huffman
Oct 15, 1992·Physical Review. B, Condensed Matter·C Z WangK M Ho
Oct 15, 1993·Physical Review. B, Condensed Matter·K WangG Dresselhaus
Jul 15, 1993·Physical Review. B, Condensed Matter·Z H DongG Dresselhaus
May 27, 1991·Physical Review Letters·M J RosseinskyA V Makhija
Jul 8, 1991·Physical Review Letters·K HolczerR L Whetten
Nov 15, 1991·Science·C M VarmaK Raghavachari
Jun 23, 2010·Proceedings of the National Academy of Sciences of the United States of America·Matthias HeydenDominik Marx
Mar 18, 2011·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Marcel BaerGerald Mathias
Nov 26, 2015·Science Advances·Ruth H ZadikKosmas Prassides
May 26, 2016·Reports on Progress in Physics·Roman MankowskyAndrea Cavalleri
Feb 18, 2017·Physical Review Letters·D M JuraschekN A Spaldin

❮ Previous
Next ❯

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.