Recording results of write heads using sputtered laminated FeN/Al/sub 2/O/sub 3/ materials on thin film media with coercivity up to 3800 Oe are compared with those obtained using plated NiFe materials ...

Past Auction John Butler Yeats Irish, 1839–1922 Letter Writing Lunatic, June 13th, 1899 Medium pencil on paper Size 22.5 x 16.5 cm. (8.9 x 6.5 in.) Description ... Sale Estimate Price Provenance ...