Results 21 to 30 of about 4,629,689 (191)

KEV-POLYATOMIC-ION-IMPACT-NUCLEATED OXIDATIVE ETCH PITTING IN HIGHLY ORIENTED PYROLYTIC-GRAPHITE

, 1995
The tendency of freshly cleaved highly oriented pyrolytic graphite (HOPG) to form nanometer-sized circular pits during high temperature oxidative etching is an example of a controllable, nanoscale tailoring of a surface with a number of potential ...
QUIST, AP,, TURPITZ, A,, REIMANN, CT,, HAKANSSON, P,, SULLIVAN, PA,, ALTMANN, S,, OSCARSSON, SO,, BERGMAN, A,, SUNDQVIST, BUR,   +8 more
core   +5 more sources

On superperiodic features on highly oriented pyrolytic graphite [PDF]

Scanning, 1998
AbstractWe present scanning tunneling microscopy (STM) results that show the superstructure on the highly oriented pryrolytic graphite (HOPG) surface. The superlattice appears to be the result of an apparent twist boundary dislocation. The crucial point of the observation is that the superlattice changes simultaneously its constant from 18 to 72 nm ...
B. Feddes, I. I. Kravchenko, L. E. Seiberling   +2 more
openaire   +1 more source

Dynamic Microstructural Evolution of Graphite under Displacing Irradiation [PDF]

, 2014
Graphitic materials and graphite composites experience dimensional change when exposed to radiation-induced atomic displacements. This has major implications for current and future technological ranging from nuclear fission reactors to the processing ...
Haigh, S. J., Greaves, Graeme, Sweeney, Francis, Haigh, S. J.; id_orcid, Donnelly, S. E., Hinks, J. A., Pan, C. T., Greaves, G., Young, R. J.; id_orcid, Sweeney, F., Young, R. J.   +10 more
core   +1 more source

Charge storage in mesoscopic graphitic islands fabricated using AFM bias lithography [PDF]

, 2011
Electrochemical oxidation and etching of highly oriented pyrolytic graphite (HOPG) has been achieved using biased atomic force microscopy (AFM) lithography, allowing patterns of varying complexity to be written into the top layers of HOPG.
G U Kulkarni, Prakash, Gyan, Kurra, Narendra, Fisher, Timothy S., Ronald G Reifenberger, Reifenberger, Ronald G., Gyan Prakash, Timothy S Fisher, Narendra Kurra, S Basavaraja, Basavaraja, S., Kulkarni, G. U.   +11 more
core   +1 more source

Magnetic vortex and unsaturated magnetization components in highly oriented pyrolytic graphite

Materials Research Express, 2020
Observation of ferromagnetic and granular superconductive features in highly-oriented-pyrolytic-graphite (HOPG) has recently attracted an important attention.
Ayoub Taallah, JiaChen Xia, Jian Guo, Gao Shuai, Omololu Odunmbaku, Min Gong, Hongyan Shang, Anna Corrias, Filippo S Boi   +8 more
doaj   +1 more source

Anomalous vortex-shaped ferrimagnetic hysteresis in exfoliated highly oriented pyrolytic graphite with distorted moiré superlattices

Carbon Trends, 2022
We report the result of a novel structural-, electronic- and magnetic-investigation of exfoliated highly-oriented-pyrolytic-graphite (HOPG) samples exhibiting distorted-moiré-superlattices.
Filippo S. Boi, Shanling Wang, Hansong Wu, Jiaxin Song, Jian Guo, Aiqun Gu, Jiqiu Wen, Hong Zhang   +7 more
doaj   +1 more source

Electrolytically Generated Nanobubbles on Highly Orientated Pyrolytic Graphite Surfaces [PDF]

Langmuir, 2009
Electrolysis of water is employed to produce surface nanobubbles on highly orientated pyrolytic graphite (HOPG) surfaces. Hydrogen (oxygen) nanobubbles are formed when the HOPG surface acts as a negative (positive) electrode. The coverage and volume of the nanobubbles increase with increasing voltage.
Yang, S., Tsai, Peichun Amy, Kooij, Ernst S., Prosperetti, Andrea, Zandvliet, Henricus J.W., Lohse, Detlef   +5 more
openaire   +3 more sources

Graphite Optics—Current Opportunities, Properties and Limits

Condensed Matter, 2019
X-ray graphite optics consists of thin layers of Pyrolytic Graphite (PG) attached to a substrate of focusing shape. Pyrolytic Graphite is a perfect artificial graphite obtained by annealing of carbon deposit at temperatures about 3000 °C under ...
Inna Grigorieva, Alexander Antonov, Gennadi Gudi   +2 more
doaj   +1 more source

Twist-angle-disorder and sulfur-induced annihilation of percolative magnetism in exfoliated lamellae of highly oriented pyrolytic graphite

Carbon Trends, 2021
The existence of low temperature ferromagnetism in twisted graphene systems and locally twisted-sublattices of highly-oriented-pyrolytic-graphite (HOPG) has recently attracted significant attention.
Mahsa Fayazi, Filippo S. Boi, Ayoub Taallah, Wenxue Li, Li Lei, Yi He, Shuai Gao, Shanling Wang   +7 more
doaj   +1 more source

Fundamental Study for a Graphite-Based Microelectromechanical System

Micromachines, 2018
We aimed to develop a process for constructing a carbon-based microelectromechanical system (MEMS). First, we prepared a highly oriented pyrolytic graphite (HOPG) crystal microsheet by exfoliation.
Junji Sone, Mutsuaki Murakami, Atsushi Tatami   +2 more
doaj   +1 more source