Growth of tungsten single-crystal films deposited on MgO(100) substrate

Abstract
The growth of tungsten single-crystal films on MgO(100) substrate has been achieved by means of the newly developed ’’ultrahigh vacuum arc evaporation’’ method. The necessary conditions for the growth were found through the so-called ’’design of experiments’’ method. From the experimental results, the levels of effective factors for single-crystal growth are discussed. Epitaxy temperatures were observed starting from about 250 °C, which is a relatively low temperature in spite of the high melting point of tungsten.