Magnetic Properties of Pr-Co Alloy Thin Films

Abstract

Pr-Co alloy thin films were prepared on glass, quartz and single-crystal Si substrates heated at various temperatures by an rf-magnetron sputtering method using composite targets. Pr-Co alloy films deposited on a single-crystal Si substrate heated to 500°C showed a square hysteresis loop with a high coercivity of 5 kOe. On the other hand, films deposited on glass or quartz substrates at room temperature and subsequently heated to 500°C or more showed a mixed hysteresis loop with low and high coercivity.