Monitoring the structure–phase changes in graphites using temperature regularities of ion-induced electron emission

The correlation between the temperature dependences of ion-induced electron emission yield, modified surface crystalline structure and morphology of isotropic graphite MPG-8 and highly oriented pyrolytic graphite (HOPG) UPV-1T under high-fluence ( F = 10 18–10 19 ion/cm 2) 6–30 keV Ar + ion irradiat...

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Veröffentlicht in:	Vacuum 2010-03, Vol.84 (8), p.1033-1037
Hauptverfasser:	Andrianova, N.N., Borisov, A.M., Mashkova, E.S., Parilis, E.S., Pitirimova, E.A., Timofeev, M.A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Correlation analysis Crystal structure Electron emission Graphite High-fluence ion irradiation HOPG Ion irradiation Ion-induced electron emission Isotropic graphite Monitoring Pyrolytic graphite Radiation damage Regularity
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The correlation between the temperature dependences of ion-induced electron emission yield, modified surface crystalline structure and morphology of isotropic graphite MPG-8 and highly oriented pyrolytic graphite (HOPG) UPV-1T under high-fluence ( F = 10 18–10 19 ion/cm 2) 6–30 keV Ar + ion irradiation has been studied and discussed. The target temperature has been varied during continuous irradiation from room temperature to 400 °C. Surface analysis has been performed by the RHEED and SEM techniques. A strong influence of electron transport anisotropy for HOPG has been observed.
ISSN:	0042-207X 1879-2715
DOI:	10.1016/j.vacuum.2009.11.008