Enhanced superparamagnetism in two-dimensional arrays of nanometer-sized Fe islands

K. R. Heim; G. G. Hembree; Kevin Schmidt; M. R. Scheinfein

doi:10.1063/1.114815

Enhanced superparamagnetism in two-dimensional arrays of nanometer-sized Fe islands

K. R. Heim, G. G. Hembree, Kevin Schmidt, M. R. Scheinfein

Physics

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Iron grown on room-temperature CaF₂/Si(111) substrates form two-dimensional arrays of nanometer-sized superparamagnetic islands. Deposition of Ag on the Fe/CaF₂/Si(111) produced a superparamagnetic response where the effective moment was proportional to the number of Fe islands covered by an average-sized Ag island. The nonmagnetic Ag overlayer mediates a long-range exchange between neighboring Fe islands within an individual Ag island. Monte Carlo methods are used to examine ordering in two dimensions and to set minimum interisland coupling strengths.

Original language	English (US)
Pages (from-to)	2878
Number of pages	1
Journal	Applied Physics Letters
Volume	67
DOIs	https://doi.org/10.1063/1.114815
State	Published - 1995

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Enhanced superparamagnetism in two-dimensional arrays of nanometer-sized Fe islands",

abstract = "Iron grown on room-temperature CaF2/Si(111) substrates form two-dimensional arrays of nanometer-sized superparamagnetic islands. Deposition of Ag on the Fe/CaF2/Si(111) produced a superparamagnetic response where the effective moment was proportional to the number of Fe islands covered by an average-sized Ag island. The nonmagnetic Ag overlayer mediates a long-range exchange between neighboring Fe islands within an individual Ag island. Monte Carlo methods are used to examine ordering in two dimensions and to set minimum interisland coupling strengths.",

author = "Heim, {K. R.} and Hembree, {G. G.} and Kevin Schmidt and Scheinfein, {M. R.}",

year = "1995",

doi = "10.1063/1.114815",

language = "English (US)",

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pages = "2878",

journal = "Applied Physics Letters",

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T1 - Enhanced superparamagnetism in two-dimensional arrays of nanometer-sized Fe islands

AU - Heim, K. R.

AU - Hembree, G. G.

AU - Schmidt, Kevin

AU - Scheinfein, M. R.

PY - 1995

Y1 - 1995

N2 - Iron grown on room-temperature CaF2/Si(111) substrates form two-dimensional arrays of nanometer-sized superparamagnetic islands. Deposition of Ag on the Fe/CaF2/Si(111) produced a superparamagnetic response where the effective moment was proportional to the number of Fe islands covered by an average-sized Ag island. The nonmagnetic Ag overlayer mediates a long-range exchange between neighboring Fe islands within an individual Ag island. Monte Carlo methods are used to examine ordering in two dimensions and to set minimum interisland coupling strengths.

AB - Iron grown on room-temperature CaF2/Si(111) substrates form two-dimensional arrays of nanometer-sized superparamagnetic islands. Deposition of Ag on the Fe/CaF2/Si(111) produced a superparamagnetic response where the effective moment was proportional to the number of Fe islands covered by an average-sized Ag island. The nonmagnetic Ag overlayer mediates a long-range exchange between neighboring Fe islands within an individual Ag island. Monte Carlo methods are used to examine ordering in two dimensions and to set minimum interisland coupling strengths.

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JO - Applied Physics Letters

JF - Applied Physics Letters

ER -

Enhanced superparamagnetism in two-dimensional arrays of nanometer-sized Fe islands

Abstract

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