Perpendicular recording

Perpendicular recording (or perpendicular magnetic recording, PMR), also known as conventional magnetic recording (CMR), is a technology for data recording on magnetic media, particularly hard disks. It was first proven advantageous in 1976 by Shun-ichi Iwasaki, then professor of the Tohoku University in Japan, and first commercially implemented in 2005. The first industry-standard demonstration showing unprecedented advantage of PMR over longitudinal magnetic recording (LMR) at nanoscale dimensions was made in 1998 at IBM Almaden Research Center in collaboration with researchers of Data Storage Systems Center (DSSC)^[1] – a National Science Foundation (NSF) Engineering Research Center (ERCs) at Carnegie Mellon University (CMU).^[2]

^ https://www.dssc.ece.cmu.edu/
^ S. Khizroev, M. Kryder, Y. Ikeda, K. Rubin, P. Arnett, M. Best, D. A. Thompson, "Recording heads with trackwidths suitable for 100 Gbit/in2 density, "IEEE Trans. Magn., 35 (5), 2544–6 (1999)[1] Archived 14 December 2013 at the Wayback Machine

[1] ttps://www.dssc.ece.cmu.edu/

[2] S. Khizroev, M. Kryder, Y. Ikeda, K. Rubin, P. Arnett, M. Best, D. A. Thompson, "Recording heads with trackwidths suitable for 100 Gbit/in2 density, "IEEE Trans. Magn., 35 (5), 2544–6 (1999)[1] Archived 14 December 2013 at the Wayback Machine

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