No abstract

An empirical equation for the vapor pressure of liquid helium has been developed. This equation is valid throughout the entire range of temperatures below the critical point, and is in accord with the latest available data on the vapor pressure to within about ±0.002°K.

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Magnetic film scrolls have been fabricated via a deterministic release of rectangular patterns of bimetallic Ti (20 nm)/Ni (20 , 30 or 40 nm) films from a sacrificial Cu underlayer. The diameter of the scrolls varied from 2.64 lm to 4.28 lm with increasing thickness of the Ni layer from 20 to 40 nm. This behavior was found to be consistent with the model of bilayered film with interfacial strain between the Ti and Ni layers of about De ¼ 0.01. Changing the geometry of the patterns from flat patterns to scrolls led to changes in their magnetic properties.

No abstract