The Feasibility of Magnetic Recording at 10 Terabits Per Square Inch on Conventional Media
Roger W. Wood, Mason A. Williams, A. Kavcic, Jim J. Miles · IEEE Transactions on Magnetics · 2009
This paper proposes a new approach to magnetic recording based on shingled writing and two-dimensional readback and signal-processing. This approach continues the use of conventional granular media but proposes techniques such that a substantial fraction of one bit of information is stored on each grain. Theoretically, areal-densities of the order of 10 Terabits per square inch may be achievable. In this paper we examine the feasibility of this two-dimensional magnetic recording (TDMR) and identify the significant challenges that must be overcome to achieve this vision.