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Conventional magnetic recording has been projected to suffer from superparamagnetic instabilities at high bit densities. Heat assisted magnetic recording (HAMR) is one of the promising approaches to overcome this problem. The track where writing is taking place is heated and cooled rapidly. The lubricant is therefore required to withstand repeated temperature changes from room temperature to above...
Cr-Si metastable alloys were prepared by RF sputtering in a low-pressure argon gas. The structure of sputtered alloys results in Cr (Si) solid solution, Cr+Cr 3 Si, the amorphous phase with increasing Si content for Cr-Si alloys. The dissolution hardening effect of Si increases the microhardness of Cr(Si) solid solution. The microhardness of Cr-Si sputtered alloys yields the peak around 50at%...
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