Title :
Spatial effects in the DC modulation noise of advanced MP tape
Author :
Bissell, P.R. ; Mercer, T. ; Ardeleanu, P. ; Stoleriu, Laurentiu ; Stancu, A.
Author_Institution :
Centre for Mater. Sci., Univ. of Central Lancashire, Preston, UK
Abstract :
Summary form only given. Experimental studies of DC modulation noise, as a function of the remanent magnetized state, for advanced MP tapes, when cycled through DC-demagnetization (DCD), indicate that their characteristics change as the thickness of the magnetic coating is reduced. Figure 1 shows a DCD noise spectral map for a 300 nm MP tape with a minimum in the demagnetised state, which is characteristic of thick media. Figure 2 shows a similar plot for a 150 nm tape with identical morphology. This is more characteristic of thin film noise. In order to understand these changing characteristics, we have modelled the experimental process.
Keywords :
demagnetisation; electric noise measurement; magnetic recording noise; magnetic tape storage; magnetic tapes; magnetic thin films; modulation; 150 nm; 300 nm; DC modulation noise spatial effects; DC-demagnetization; DCD cycling; DCD noise spectral map; MP magnetic tape modelling; demagnetised state minimum; magnetic coating thickness; remanent magnetized states; tape morphology; thick media; thickness dependent characteristics change; thin film noise; Aluminum; Artificial intelligence; Atmospheric modeling; Coatings; Magnetic heads; Magnetic noise; Materials science and technology; Noise figure; Surface morphology; Transistors;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1000644