Monte Carlo simulations of coronene molecules in single-walled carbon nanotubes (SWCNTs) and dicoronylene molecules in SWCNTs are performed. Depending on the diameter D of the encapsulating SWCNT, regimes favoring the formation of ordered, one-dimensional (1D) stacks of tilted molecules (D ≤ 1.7 nm for coronene@SWCNT, 1.5 nm ≤ D ≤ 1.7 nm for dicoronylene@SWCNT) and regimes with disordered molec...

We revisit the problem of electron transport in clean and disordered zigzag graphene nanoribbons, and expose numerous hitherto unknown peculiar properties of these systems at zero energy, where both sublattices decouple because of chiral symmetry. For clean ribbons, we give a quantitative description of the unusual power-law dispersion of the central energy bands and of its main consequences, i...

Hossein Karamitaheri,1 Mahdi Pourfath,2,3 Hans Kosina,3 and Neophytos Neophytou4,* 1Department of Electrical Engineering, University of Kashan, Kashan 87317-51167, Iran 2School of Electrical and Computer Engineering, University of Tehran, Tehran 14395-515, Iran 3Institute for Microelectronics, Technical University of Vienna, Vienna, 1040, Austria 4School of Engineering, University of Warwick, C...

We look at the magnetic field induced weak localisation peak of graphene samples with different mobilities. At very low temperatures, low mobility samples exhibit a very broad peak as a function of the magnetic field, in contrast to higher mobility samples, where the weak localisation peak is very sharp. We analyze the experimental data in the context of the localisation length, which allows us...

Transmission electron microscopy has been used to examine carbon isolated from the Allende meteorite. The structure of the carbon is rather disordered, consisting of curved and faceted graphene sheets with little large scale graphitization, and resembles that of a microporous carbon following high temperature heat treatment. Closed carbon nanoparticles, typically V2^10 nm in diameter are common...

Backgrounds: The prevalence of disordered eating behaviors has been reported to increase in recent decades; therefore, scientific studies should perform for specifying psychological variables that may contribute to the etiology of this disorder. In this study, we examined the role of body image disturbance and perfectionism variables in predicting disordered eating behaviors among female studen...

The prevalence of disordered eating behaviors has been reported to increase in recent decades; on the other hand one situation that can impede the regulation of emotions is alexithymia. Therefore, the search for specific psychological variables that may contribute to the etiology of this disorder is of great importance. The current study examined the mediating role of the emotion regulation dif...

Due to the ultra-high thermal conductivity (k) of graphene, graphene-based materials are expected to be good thermal conductors. Here, however, we uncovered extremely low k of ultralight graphene aerogels (GAs). Although our GA (~4 mg cm 3) is about two times heavier than air (~1.2 mg cm 3), the k (4.7 10 3 5.9 10 3 W m 1 K 1) at room temperature (RT) is about 80% lower than that of air (0.0257...