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Thermal Desorption of Au from W(001) Surface

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Błaszczyszyn R., Chrzanowski J., Godowski P.

Acta Physica Polonica A

2002

vol. 102

issue 6

785-794

Adsorption of Au on W(001) at 450 K up to multilayer structures was investigated. Temperature programmed desorption technique was used in determination of coverage dependent desorption energy (region up to one monolayer). Results were discussed in terms of competitive interactions of Au-Au and Au-W atoms. Simple procedure for prediction of faceting behavior on the interface, basing on the desorption data, was postulated. It was deduced that the Au/W(001) interface should not show faceting tendency after thermal treatment.

Thermally Stimulated Electron Emission from K-Bi-GICs

100%

Chrzanowski J., Klimkiewicz R., Morawski A.

The results of the investigations of thermally stimulated electron emission from graphite submitted to intercalation of K-Bi alloy, in the temperature range of 100-400 K, are presented. Total and partial pressure in the measuring chamber in relation to the temperature of the sample are also reported. The insertion of a K-Bi alloy into the interlayers of graphite considerably changes thermally stimulated electron emission properties. The emission images I(T) depend on the content of intercalate and the emission maxima obtained at temperatures of about 170 and 210 K are conditioned by the desorption of a gas while the total pressure above the different samples is of the same order. The desorption of gases at a temperature over 250 K does not cause any increase in the electron emission.

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2 Acta Physica Polonica A

1 2002

1 1998

2 Chrzanowski J.

1 Błaszczyszyn R.

1 Godowski P.

1 Klimkiewicz R.

1 Morawski A.

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Thermal Desorption of Au from W(001) Surface

Thermally Stimulated Electron Emission from K-Bi-GICs