It has been demonstrated that acid-treated graphene samples as well as reduced graphene oxide show fairly intense blue emission centered around 440 nm. Reduction of graphene oxide can be carried out either chemically or ...

57Fe Mössbauer measurements show that the Tc of 〈12〉-nm particles of MnFe2O4 is higher than that of the 〈33〉-nm particles, which exhibit the bulk Tc value (573 K). The 57Fe isomer shift as well as the internal field are, ...

Magnetoresistance (MR) in bulk samples of LaMnO3 has been investigated by varying the Mn4+ content from 10 to 33 per cent by chemical means, without aliovalent doping. With the increase in Mn4+ content, the structure of ...

Orbital energies and electronic transition energies of BH3·H2S and BH3·CO obtained from ultraviolet (HeI) photoelectron spectroscopy and electron energy loss spectroscopy are discussed in the light of quantum mechanical ...

A photoemission study of superconducting Nd1.85Ce0.15CuO4-δ shows that Ce in the cuprate is essentially in the 4+ state. While the electron donated by Ce does not appear to affect the Cu 3d band, we still find evidence for ...

Carlo simulations of liquid and supercooled liquid states of neohexane, n-hexane, n-pentane, isopentane, neopentane and a model linear molecule are reported. A quantitative measure of the degree of disorder associated with ...

X-ray and UV photoemission along with Auger spectroscopic studies show the formation of surface alloys in the Pd/Ag and Cu/Au overlayers on polycrystalline substrates. Surface alloy formation also occurs in the Ni/Au ...

Superconductivity in LnBa2Cu3O7 − δ with Ln = Nd, Eu, Gdand Dy has been investigated as a function of δ, closely following the accompanying changes in crystal structure. Orthorhombic GdBa2Cu3O7 − δ and DyBa2Cu3O7 − δ show ...

Electron states of the benzene...HCl complex have been studied by UV photoelectron spectroscopy. Two vertical ionization energies of the complex at 10.84 and 12.10 eV have been assigned to π C6H6 and nCl orbitals, respectively. ...

N2 chemisorbs on (100), (110) and (111) single-crystal faces at 80 K without any dissociation. A molecular precursor species at the threshold of dissociation is formed at 80 K on a Ni(110) surface covered with atomic carbon ...