An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
Journal Article Structure Analysis of CoPt Nanoparticles Get access Y H Huang, Y H Huang Department of Physics, University of Delaware; Newark, DE 19716 Search for other works by this author on: Oxford Academic Google Scholar Y Zhang, Y Zhang Department of Physics, University of Delaware; Newark, DE 19716 Search for other works by this author on: Oxford Academic Google Scholar C E Nelson, C E Nelson NCEM, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 Search for other works by this author on: Oxford Academic Google Scholar G C Hadjipanayis, G C Hadjipanayis Department of Physics, University of Delaware; Newark, DE 19716 Search for other works by this author on: Oxford Academic Google Scholar D Weller D Weller Seagate Technology; Pittsburgh, PA 1520 Search for other works by this author on: Oxford Academic Google Scholar Microscopy and Microanalysis, Volume 8, Issue S02, 1 August 2002, Pages 1376–1377, https://doi.org/10.1017/S1431927602103503 Published: 01 August 2002
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
Abstract— Purple membrane (PM) suspension and artificial bilayer lipid membranes (BLM) containing PM sheets were treated with melittin. Both the decaying of the photocycle intermediate M412 and proton translocation were inhibited by melittin: The yields and rate of the slow‐decaying component of M412 (M412s) together with the proton release and its uptake rate were significantly decreased, but the rate of the fast‐decaying component of M412 (M4120 had only slight changes. Relatively high concentrations of melittin could cause aggregation in PM suspensions. Addition of melittin to a BLM solution increased the continuous photopotential signal but decreased the transient signal. We suggest that there might exist strong interactions between melittin and bacteriorhodopsin in addition to the melittin–lipid action. On the other hand, the results also indicate that proton translocation was more likely to be coupled with M412s and both were more sensitive to the changes caused by the melittin–PM interaction than was M412f.
Gd and Tb nanoparticles were obtained via annealing of sputtered multilayer precursors. Detailed structural examination, involving energy-filtered imaging and high-resolution electron microscopy along with transmission electron microscopy and scanning electron microscopy techniques, revealed an island structure for the rare earths within the precursors, which further develops to nanoparticles upon annealing. A dramatic change in the magnetic characteristics of the nanoparticles is observed comparing to the bulk. Magnetic data are discussed to distinguish between true size effects and superparamagnetism. The obtained results give a credit to the former scenario.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
Ordered FePt nanoparticles with unique magnetic properties were obtained by direct deposition of FePt and C onto heated substrates at temperature above 450 °C. The FePt particle sizes were controlled in the range from a few nanometers to 20 nm by adjusting the sputtering time from both the FePt and C targets. The tiny FePt nanoparticles (less than 3 nm) showed superparamagnetic behavior at room temperature. However, larger particles showed huge coercivities at room temperature (23 and 34 kOe for particles with average sizes of around 8 and 15 nm, respectively). For a certain FePt to C ratio, the films can show strong perpendicular anisotropy which is favorable for high density recording media.
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