Properties of single RuO2 layer embedded in SrTiO3

T. Harada; C. R. Hughes; R. Ashoori; A. V. Boris; H. Hilgenkamp; M. E. Holtz; L. Li; J. Mannhart; D. A. Muller; D. G. Schlom; A. Soukiassian; X. R. Wang; H. Boschker

doi:10.1109/INTMAG.2015.7157250

Properties of single RuO₂ layer embedded in SrTiO₃

T. Harada, C. R. Hughes, R. Ashoori, A. V. Boris, H. Hilgenkamp, M. E. Holtz, L. Li, J. Mannhart, D. A. Muller, D. G. Schlom, A. Soukiassian, X. R. Wang, H. Boschker

Materials Property Division

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A two-dimensional ferromagnet is an interesting system both for basic understanding of magnetism and for spintronic applications. However, making such a system is not easy as ferromagnetism becomes more and more unstable with reducing the thickness of a ferromagnet. For example, in oxide systems such as SrRuO₃, La_1-xSr_xMnO₃, etc, ferromagnetism is lost around the thickness of a few unit cells [1, 2]. Recent theoretical studies have shown that a single SrRuO₃ layer can exhibit half-metallicity when it is sandwiched between SrTiO₃ lattices [3, 4]. The conduction electrons are predicted to exist only in RuO₂ layers, which means that the system is a two-dimensional half-metal. In this work, in order to demonstrate the theoretical prediction, we have fabricated high-quality SrRuO₃/SrTiO₃ superlattices using molecular beam epitaxy. Magnetic and transport measurements show a clear signature of ferromagnetism and conductivity.

Original language	English
Title of host publication	2015 IEEE International Magnetics Conference, INTERMAG 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479973224
DOIs	https://doi.org/10.1109/INTMAG.2015.7157250
Publication status	Published - 2015 Jul 14
Event	2015 IEEE International Magnetics Conference, INTERMAG 2015 - Beijing, China Duration: 2015 May 11 → 2015 May 15

Publication series

Name	2015 IEEE International Magnetics Conference, INTERMAG 2015

Other

Other	2015 IEEE International Magnetics Conference, INTERMAG 2015
Country/Territory	China
City	Beijing
Period	15/5/11 → 15/5/15

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering
Surfaces, Coatings and Films

Access to Document

10.1109/INTMAG.2015.7157250

Cite this

Harada, T., Hughes, C. R., Ashoori, R., Boris, A. V., Hilgenkamp, H., Holtz, M. E., Li, L., Mannhart, J., Muller, D. A., Schlom, D. G., Soukiassian, A., Wang, X. R., & Boschker, H. (2015). Properties of single RuO₂ layer embedded in SrTiO₃. In 2015 IEEE International Magnetics Conference, INTERMAG 2015 [7157250] (2015 IEEE International Magnetics Conference, INTERMAG 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTMAG.2015.7157250

Properties of single RuO₂ layer embedded in SrTiO₃. / Harada, T.; Hughes, C. R.; Ashoori, R. et al.

2015 IEEE International Magnetics Conference, INTERMAG 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7157250 (2015 IEEE International Magnetics Conference, INTERMAG 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Harada, T, Hughes, CR, Ashoori, R, Boris, AV, Hilgenkamp, H, Holtz, ME, Li, L, Mannhart, J, Muller, DA, Schlom, DG, Soukiassian, A, Wang, XR & Boschker, H 2015, Properties of single RuO₂ layer embedded in SrTiO₃. in 2015 IEEE International Magnetics Conference, INTERMAG 2015., 7157250, 2015 IEEE International Magnetics Conference, INTERMAG 2015, Institute of Electrical and Electronics Engineers Inc., 2015 IEEE International Magnetics Conference, INTERMAG 2015, Beijing, China, 15/5/11. https://doi.org/10.1109/INTMAG.2015.7157250

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AU - Holtz, M. E.

AU - Li, L.

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AU - Soukiassian, A.

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