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Title: Origin of magnetic switching field distribution in bit patterned media based on pre-patterned substrates

Abstract

Using a combination of synchrotron radiation based magnetic imaging and high-resolution transmission electron microscopy we reveal systematic correlations between the magnetic switching field and the internal nanoscale structure of individual islands in bit patterned media fabricated by Co/Pd-multilayer deposition onto pre-patterned substrates. We find that misaligned grains at the island periphery are a common feature independent of the island switching field, while irregular island shapes and misaligned grains specifically extending into the center of an island are systematically correlated with a reduced island reversal field.

Authors:
; ;  [1];  [1]; ; ; ; ; ;  [2];  [3]
  1. TU Berlin, Institut fuer Optik und Atomare Physik, Hardenbergstrasse 36, 10623 Berlin (Germany)
  2. San Jose Research Center, Hitachi Global Storage Technologies, 3403 Yerba Buena Rd., San Jose, California 95135 (United States)
  3. Stanford Synchrotron Radiation Laboratory, SLAC, Menlo Park, California 94025 (United States)
Publication Date:
OSTI Identifier:
22027707
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 99; Journal Issue: 6; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; COBALT; CORRELATIONS; DEPOSITION; INTERFACES; LAYERS; MAGNETIC FIELDS; MAGNETIZATION; NANOSTRUCTURES; PALLADIUM; RESOLUTION; SPATIAL DISTRIBUTION; SUBSTRATES; SYNCHROTRON RADIATION; TRANSMISSION ELECTRON MICROSCOPY

Citation Formats

Pfau, B, Guenther, C M, Eisebitt, S, Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Guehrs, E, Hauet, T, Yang, H, Vinh, L, Xu, X, Yaney, D, Hellwig, O, and Rick, R. Origin of magnetic switching field distribution in bit patterned media based on pre-patterned substrates. United States: N. p., 2011. Web. doi:10.1063/1.3623488.
Pfau, B, Guenther, C M, Eisebitt, S, Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Guehrs, E, Hauet, T, Yang, H, Vinh, L, Xu, X, Yaney, D, Hellwig, O, & Rick, R. Origin of magnetic switching field distribution in bit patterned media based on pre-patterned substrates. United States. https://doi.org/10.1063/1.3623488
Pfau, B, Guenther, C M, Eisebitt, S, Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Guehrs, E, Hauet, T, Yang, H, Vinh, L, Xu, X, Yaney, D, Hellwig, O, and Rick, R. 2011. "Origin of magnetic switching field distribution in bit patterned media based on pre-patterned substrates". United States. https://doi.org/10.1063/1.3623488.
@article{osti_22027707,
title = {Origin of magnetic switching field distribution in bit patterned media based on pre-patterned substrates},
author = {Pfau, B and Guenther, C M and Eisebitt, S and Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin and Guehrs, E and Hauet, T and Yang, H and Vinh, L and Xu, X and Yaney, D and Hellwig, O and Rick, R},
abstractNote = {Using a combination of synchrotron radiation based magnetic imaging and high-resolution transmission electron microscopy we reveal systematic correlations between the magnetic switching field and the internal nanoscale structure of individual islands in bit patterned media fabricated by Co/Pd-multilayer deposition onto pre-patterned substrates. We find that misaligned grains at the island periphery are a common feature independent of the island switching field, while irregular island shapes and misaligned grains specifically extending into the center of an island are systematically correlated with a reduced island reversal field.},
doi = {10.1063/1.3623488},
url = {https://www.osti.gov/biblio/22027707}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 6,
volume = 99,
place = {United States},
year = {Mon Aug 08 00:00:00 EDT 2011},
month = {Mon Aug 08 00:00:00 EDT 2011}
}