Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 79, Issue 3, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2890839
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A new high resolution polar magneto-optical (MO) Kerr magnetometer, devoted to the study of nanometer sized elements with perpendicular magnetic anisotropy, is described. The unique performances of this setup in terms of sensitivity (1.2 x 10(-15) emu), stability (lateral drift +/- 35 nm over 3 h), and resolution (laser spot full width at half maximum down to 470 nm) are demonstrated, and illustrated by Kerr hysteresis loop measurements on a unique ultrathin magnetic nanodot, and over small segments of ultranarrow magnetic tracks. Large scanning MO Kerr microscopy images were also obtained with the same performances. (C) 2008 American Institute of Physics.
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