Results 31 to 40 of about 4,629,689 (191)

Understanding the Growth Mechanism of GaN Epitaxial Layers on Mechanically Exfoliated Graphite

Nanoscale Research Letters, 2018
The growth mechanism of GaN epitaxial layers on mechanically exfoliated graphite is explained in detail based on classic nucleation theory. The number of defects on the graphite surface can be increased via O-plasma treatment, leading to increased ...
Tianbao Li, Chenyang Liu, Zhe Zhang, Bin Yu, Hailiang Dong, Wei Jia, Zhigang Jia, Chunyan Yu, Lin Gan, Bingshe Xu, Haiwei Jiang   +10 more
doaj   +1 more source

Indications for intrinsic superconductivity in highly oriented pyrolytic graphite [PDF]

Physical Review B, 2008
High-resolution magnetoresistance data in highly oriented pyrolytic graphite thin samples manifest nonhomogenous superconductivity with critical temperature ${T}_{c}\ensuremath{\sim}25\text{ }\text{K}$ and higher temperature. Our claim is based mainly in the observation of anomalous hysteresis loops of resistance versus magnetic field that cannot be ...
P. Esquinazi, N. García, J. Barzola-Quiquia, P. Rödiger, K. Schindler, J.-L. Yao, M. Ziese   +6 more
openaire   +1 more source

Josephson-coupled superconducting regions embedded at the interfaces of highly oriented pyrolytic graphite [PDF]

, 2022
Transport properties of a few hundreds of nanometers thick (in the graphene plane direction) lamellae of highly oriented pyrolytic graphite (HOPG) have been investigated.
Scheike, Thomas, Ballestar, Ana, Esquinazi, Pablo, Barzola-Quiquia, José   +3 more
core   +1 more source

Scanning tunnelling miscroscopy/spectroscopy and X-ray absorption spectroscopy studies of Co adatoms and anoislands on highly oriented pyrolytic graphite [PDF]

, 2010
In this paper, the scanning tunneling microscopy, scanning tunneling spectroscopy and X-ray absorption spectroscopy of cobalt adatoms and nanoislands were studied on a highly oriented pyrolytic graphite.
de Jong, M.P., Wong, P.K.J., van der Wiel, Wilfred Gerard; id_orcid, Leonardus, L., de Jong, Machiel Pieter, Siekman, Martin Herman, Zandvliet, Henricus J.W.   +6 more
core   +1 more source

Study of potassium intercalated graphite by Raman spectroscopy

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
In this paper, a study of a graphite intercalation compound by potassium was carried out using Raman spectroscopy. The purpose of the study was to determine the intercalation stage and study the influence of intercalated atoms on the vibrational ...
Z.A. Akhmatov, A.Kh.. Khokonov, M.G. Ambartsumov   +2 more
doaj   +1 more source

Study of electrophysical properties of pure and intercalated highly oriented pyrolytic graphite

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
Graphite intercalated compounds have attracted significant attention from researchers due to their unique physical properties. Metals and molecules introduced into the interplanar spacing of graphite can act as donors or acceptors of electrons.
Z.A. Akhmatov, F.Kh.. Khokonov, I.N. Sergeev   +2 more
doaj   +1 more source

Rhombohedral stacking-faults in exfoliated highly oriented pyrolytic graphite

Carbon Trends
The recent observation of possible granular superconductivity in highly oriented pyrolytic graphite (HOPG) has attracted significant research interest. Here we report a novel investigation on the structural-properties of exfoliated-HOPG.
Filippo Boi, Cheng-Yang Lee, Shanling Wang, Hansong Wu, Lei Li, Lin Zhang, Jiaxin Song, Yixin Dai, Ayoub Taallah, Omololu Odunmbaku, Anna Corrias, Aleksandra Baron-Wiechec, Shuping Zheng, Salvatore Grasso   +13 more
doaj   +1 more source

Influence of supporting electrolyte on electrochemical formation of copper nanoparticles and their electrocatalytic properties

Journal of Electrochemical Science and Engineering, 2021
Comparative analysis of copper nanoparticles (CuNPs) obtained by electrodeposition on highly oriented pyrolytic graphite (HOPG) substrates from different supporting electrolytes containing sulphate anions, was performed.
Silvana García, Noelia Zurita
doaj   +1 more source

Electrogenerated Chemiluminescence of Partially Oxidized Highly Oriented Pyrolytic Graphite Surfaces and of Graphene Oxide Nanoparticles

, 2016
Electrogenerated Chemiluminescence of Partially Oxidized Highly Oriented Pyrolytic Graphite Surfaces and of Graphene Oxide ...
Sungjin Park (616979), Yanwu Zhu (1269969), Rodney S. Ruoff (1269966), Allen J. Bard (1272990), Fu-Ren F. Fan (1272993)   +4 more
core   +1 more source

Effect of Graphite Orientation and Lithium Salt on Electronic Passivation of Highly Oriented Pyrolytic Graphite [PDF]

Effect of Graphite Orientation and Lithium Salt on Electronic Passivation of Highly Oriented Pyrolytic Graphite, 2012
This work studies the effect of edge-to-basal plane ratio on the macroscopic formation kinetics and electrochemical properties of the solid-electrolyte-interphase (SEI). The relative fraction of edge and basal planes was calculated by measuring the double-layer capacitance of highly oriented pyrolytic graphite (HOPG) in 1.0 M KCl.
Tang, Maureen, Miyazaki, Kohei, Abe, Takeshi, Newman, John   +3 more
openaire   +3 more sources