Intrinsic magnetic properties of hexagonal LuFeO3 and the effects of nonstoichiometry

Jarrett A. Moyer; Rajiv Misra; Julia A. Mundy; Charles M. Brooks; John T. Heron; David A. Muller; Darrell G. Schlom; Peter Schiffer

doi:10.1063/1.4861795

Intrinsic magnetic properties of hexagonal LuFeO₃ and the effects of nonstoichiometry

Jarrett A. Moyer, Rajiv Misra, Julia A. Mundy, Charles M. Brooks, John T. Heron, David A. Muller, Darrell G. Schlom, Peter Schiffer

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

68 Scopus citations

Abstract

We used oxide molecular-beam epitaxy in a composition-spread geometry to deposit hexagonal LuFeO₃ (h-LuFeO₃) thin films with a monotonic variation in the Lu/Fe cation ratio, creating a mosaic of samples that ranged from iron rich to lutetium rich. We characterized the effects of composition variation with x-ray diffraction, atomic force microscopy, scanning transmission electron microscopy, and superconducting quantum interference device magnetometry. After identifying growth conditions leading to stoichiometric film growth, an additional sample was grown with a rotating sample stage. From this stoichiometric sample, we determined stoichiometric h-LuFeO₃ to have a T_N = 147 K and M_s = 0.018 μ_B/Fe.

Original language	English (US)
Article number	012106
Journal	APL Materials
Volume	2
Issue number	1
DOIs	https://doi.org/10.1063/1.4861795
State	Published - Jan 2014
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Materials Science
General Engineering

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10.1063/1.4861795

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title = "Intrinsic magnetic properties of hexagonal LuFeO3 and the effects of nonstoichiometry",

abstract = "We used oxide molecular-beam epitaxy in a composition-spread geometry to deposit hexagonal LuFeO3 (h-LuFeO3) thin films with a monotonic variation in the Lu/Fe cation ratio, creating a mosaic of samples that ranged from iron rich to lutetium rich. We characterized the effects of composition variation with x-ray diffraction, atomic force microscopy, scanning transmission electron microscopy, and superconducting quantum interference device magnetometry. After identifying growth conditions leading to stoichiometric film growth, an additional sample was grown with a rotating sample stage. From this stoichiometric sample, we determined stoichiometric h-LuFeO3 to have a TN = 147 K and Ms = 0.018 μB/Fe.",

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T1 - Intrinsic magnetic properties of hexagonal LuFeO3 and the effects of nonstoichiometry

AU - Moyer, Jarrett A.

AU - Misra, Rajiv

AU - Mundy, Julia A.

AU - Brooks, Charles M.

AU - Heron, John T.

AU - Muller, David A.

AU - Schlom, Darrell G.

AU - Schiffer, Peter

PY - 2014/1

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N2 - We used oxide molecular-beam epitaxy in a composition-spread geometry to deposit hexagonal LuFeO3 (h-LuFeO3) thin films with a monotonic variation in the Lu/Fe cation ratio, creating a mosaic of samples that ranged from iron rich to lutetium rich. We characterized the effects of composition variation with x-ray diffraction, atomic force microscopy, scanning transmission electron microscopy, and superconducting quantum interference device magnetometry. After identifying growth conditions leading to stoichiometric film growth, an additional sample was grown with a rotating sample stage. From this stoichiometric sample, we determined stoichiometric h-LuFeO3 to have a TN = 147 K and Ms = 0.018 μB/Fe.

AB - We used oxide molecular-beam epitaxy in a composition-spread geometry to deposit hexagonal LuFeO3 (h-LuFeO3) thin films with a monotonic variation in the Lu/Fe cation ratio, creating a mosaic of samples that ranged from iron rich to lutetium rich. We characterized the effects of composition variation with x-ray diffraction, atomic force microscopy, scanning transmission electron microscopy, and superconducting quantum interference device magnetometry. After identifying growth conditions leading to stoichiometric film growth, an additional sample was grown with a rotating sample stage. From this stoichiometric sample, we determined stoichiometric h-LuFeO3 to have a TN = 147 K and Ms = 0.018 μB/Fe.

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Intrinsic magnetic properties of hexagonal LuFeO₃ and the effects of nonstoichiometry

Abstract

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