Monolithic integration of room-temperature multifunctional BaTiO 3 -CoFe 2 O 4 epitaxial heterostructures on Si(001)

Mateusz Scigaj; Nico Dix; Jaume Gázquez; María Varela; Ignasi Fina; Neus Domingo; Gervasi Herranz; Vassil Skumryev; Josep Fontcuberta; Florencio Sánchez

doi:10.1038/srep31870

Monolithic integration of room-temperature multifunctional BaTiO 3 -CoFe 2 O 4 epitaxial heterostructures on Si(001)

Mateusz Scigaj, Nico Dix, Jaume Gázquez, María Varela, Ignasi Fina, Neus Domingo, Gervasi Herranz, Vassil Skumryev, Josep Fontcuberta, Florencio Sánchez

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20 Scopus citations

Abstract

The multifunctional (ferromagnetic and ferroelectric) response at room temperature that is elusive in single phase multiferroic materials can be achieved in a proper combination of ferroelectric perovskites and ferrimagnetic spinel oxides in horizontal heterostructures. In this work, lead-free CoFe 2 O 4 /BaTiO 3 bilayers are integrated with Si(001) using LaNiO 3 /CeO 2 /YSZ as a tri-layer buffer. They present structural and functional properties close to those achieved on perovskite substrates: the bilayers are fully epitaxial with extremely flat surface, and exhibit robust ferromagnetism and ferroelectricity at room temperature.

Original language	English
Article number	31870
Journal	Scientific Reports
Volume	6
DOIs	https://doi.org/10.1038/srep31870
State	Published - Aug 23 2016
Externally published	Yes

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title = "Monolithic integration of room-temperature multifunctional BaTiO 3 -CoFe 2 O 4 epitaxial heterostructures on Si(001)",

abstract = "The multifunctional (ferromagnetic and ferroelectric) response at room temperature that is elusive in single phase multiferroic materials can be achieved in a proper combination of ferroelectric perovskites and ferrimagnetic spinel oxides in horizontal heterostructures. In this work, lead-free CoFe 2 O 4 /BaTiO 3 bilayers are integrated with Si(001) using LaNiO 3 /CeO 2 /YSZ as a tri-layer buffer. They present structural and functional properties close to those achieved on perovskite substrates: the bilayers are fully epitaxial with extremely flat surface, and exhibit robust ferromagnetism and ferroelectricity at room temperature.",

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T1 - Monolithic integration of room-temperature multifunctional BaTiO 3 -CoFe 2 O 4 epitaxial heterostructures on Si(001)

AU - Scigaj, Mateusz

AU - Dix, Nico

AU - Gázquez, Jaume

AU - Varela, María

AU - Fina, Ignasi

AU - Domingo, Neus

AU - Herranz, Gervasi

AU - Skumryev, Vassil

AU - Fontcuberta, Josep

AU - Sánchez, Florencio

PY - 2016/8/23

Y1 - 2016/8/23

N2 - The multifunctional (ferromagnetic and ferroelectric) response at room temperature that is elusive in single phase multiferroic materials can be achieved in a proper combination of ferroelectric perovskites and ferrimagnetic spinel oxides in horizontal heterostructures. In this work, lead-free CoFe 2 O 4 /BaTiO 3 bilayers are integrated with Si(001) using LaNiO 3 /CeO 2 /YSZ as a tri-layer buffer. They present structural and functional properties close to those achieved on perovskite substrates: the bilayers are fully epitaxial with extremely flat surface, and exhibit robust ferromagnetism and ferroelectricity at room temperature.

AB - The multifunctional (ferromagnetic and ferroelectric) response at room temperature that is elusive in single phase multiferroic materials can be achieved in a proper combination of ferroelectric perovskites and ferrimagnetic spinel oxides in horizontal heterostructures. In this work, lead-free CoFe 2 O 4 /BaTiO 3 bilayers are integrated with Si(001) using LaNiO 3 /CeO 2 /YSZ as a tri-layer buffer. They present structural and functional properties close to those achieved on perovskite substrates: the bilayers are fully epitaxial with extremely flat surface, and exhibit robust ferromagnetism and ferroelectricity at room temperature.

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DO - 10.1038/srep31870

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VL - 6

JO - Scientific Reports

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ER -

Monolithic integration of room-temperature multifunctional BaTiO 3 -CoFe 2 O 4 epitaxial heterostructures on Si(001)

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