TY - JOUR
T1 - Patterned magnetic nanostructures and quantized magnetic disks
AU - Chou, Stephen Y.
N1 - Funding Information:
Manuscript received September 21, 1996; revised February 10, 1997. This work was supported in part by the Office of Naval Research, Defense Advanced Research Projects Agency, Packard Foundation through a Packard Fellowship, and the Army Research Office through a DURIP. The author is with the NanoStructure Laboratory, Department of Electrical Engineering, University of Minnesota, Minneapolis, MN 55455 USA. Publisher Item Identifier S 0018-9219(97)03279-9.
PY - 1997
Y1 - 1997
N2 - Nanofabrication, offering unprecedented capabilities in the manipulation of material structures and properties, opens up new opportunities for engineering innovative magnetic materials, and devices, developing iiltra-high-density magnetic storage, and understanding micromagnetics. This paper reviews the recent advances in patterned magnetic nanostructures, a fast-emerging field, including 1) state-of-the-art technology for patterning of magnetic nanostructures as small as 10 nm; 2) engineering of unique magnetic properties (such as domain structures, domain switching, and magnetoresistance) by patterning and controlling the size, shape, spacing, orientation, and compositions of magnetic materials; 3) quantized magnetic disks - a new paradigm for ultra-high-density magnetic storage based on patterned single-domain elements that have demonstrated a storage density of 65 Gb/in2 (nearly two orders of magnitude higher than that in current commercial magnetic disks) and a capability of 400 Gb/in2; 4) novel magnetoresistance sensors based on unique properties of magnetic nanostructures; 5) other applications of nanoscale patterning in magnetics such as the quantification of magnetic force microscopy (MFM), and a new ultra-high-resolution MFM tip; and 6) sub-10-nm imprint lithography - a new low-cost, high-throughput technology for manufacturing magnetic nanostructures.
AB - Nanofabrication, offering unprecedented capabilities in the manipulation of material structures and properties, opens up new opportunities for engineering innovative magnetic materials, and devices, developing iiltra-high-density magnetic storage, and understanding micromagnetics. This paper reviews the recent advances in patterned magnetic nanostructures, a fast-emerging field, including 1) state-of-the-art technology for patterning of magnetic nanostructures as small as 10 nm; 2) engineering of unique magnetic properties (such as domain structures, domain switching, and magnetoresistance) by patterning and controlling the size, shape, spacing, orientation, and compositions of magnetic materials; 3) quantized magnetic disks - a new paradigm for ultra-high-density magnetic storage based on patterned single-domain elements that have demonstrated a storage density of 65 Gb/in2 (nearly two orders of magnitude higher than that in current commercial magnetic disks) and a capability of 400 Gb/in2; 4) novel magnetoresistance sensors based on unique properties of magnetic nanostructures; 5) other applications of nanoscale patterning in magnetics such as the quantification of magnetic force microscopy (MFM), and a new ultra-high-resolution MFM tip; and 6) sub-10-nm imprint lithography - a new low-cost, high-throughput technology for manufacturing magnetic nanostructures.
KW - Magnetic nanostriicture
KW - Magnetoresistance
KW - Nanoimprint lithography
KW - Quantized magnetic disk
KW - Quantum magnetic disk
UR - http://www.scopus.com/inward/record.url?scp=0031124398&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031124398&partnerID=8YFLogxK
U2 - 10.1109/5.573754
DO - 10.1109/5.573754
M3 - Article
AN - SCOPUS:0031124398
SN - 0018-9219
VL - 85
SP - 652
EP - 671
JO - Proceedings of the IEEE
JF - Proceedings of the IEEE
IS - 4
ER -