A method of performing data/information recording and retrieval utilizing
a multilevel patterned magnetic medium, comprises providing a magnetic
recording system including a read/write head and a multilevel patterned
magnetic recording medium including a plurality of spaced apart
data/information storage elements each comprising a stacked plurality n
of magnetic recording cells with different magnetic properties and
magnetically decoupled from overlying and/or underlying cells; providing
relative movement between the write head and magnetic recording medium;
and writing to the medium by supplying the write head with a modulated
write current comprising a plurality n of pulses of different magnitudes
while the head passes over each element, thereby applying n different
magnetic field strengths to each element, the write current including a
first pulse of magnitude sufficient to write to a first cell of each
element having a highest magnetic coercivity of said cells, and n-1
succeeding pulses of progressively smaller magnitude for sequentially
writing to the remaining n-1 lower magnetic coercivity cells of each
element but of insufficient magnitude to write to progressively higher
magnetic coercivity cells, such that the writing occurs in a single pass
of the write head over each element.