Thin films of the spin ice compound Ho2Ti2O7

D.P. Leusink, F. Coneri, M. Hoek, S. Turner, H. Idrissi, G. van Tendeloo, H. Hilgenkamp

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Abstract

The pyrochlore compounds Ho2Ti2O7 and Dy2Ti2O7 show an exotic form of magnetism called the spin ice state, resulting from the interplay between geometrical frustration and ferromagnetic coupling. A fascinating feature of this state is the appearance of magnetic monopoles as emergent excitations above the degenerate ground state. Over the past years, strong effort has been devoted to the investigation of these monopoles and other properties of the spin ice state in bulk crystals. Here, we report the fabrication of Ho2Ti2O7 thin films using pulsed laser deposition on yttria-stabilized ZrO2 substrates. We investigated the structuralproperties of these films by X-ray diffraction, scanning transmission electron microscopy, and atomic force microscopy, and the magnetic properties by vibrating sample magnetometry at 2 K. The films not only show a high crystalline quality, but also exhibit the hallmarks of a spin ice:a pronounced magnetic anisotropy and an intermediate plateau in the magnetization along the [111] crystal direction.

Original languageEnglish
Article number032101
JournalAPL materials
Volume2
Issue number3
DOIs
Publication statusPublished - Feb 2014

Fingerprint

Ice
Thin films
Crystals
Yttrium oxide
Magnetism
Pulsed laser deposition
Ground state
Atomic force microscopy
Magnetization
Magnetic properties
Diffraction
Crystalline materials
Transmission electron microscopy
Fabrication
Scanning electron microscopy
Magnetometry
pyrochlore
yttria
Direction compound

Cite this

Leusink, D. P., Coneri, F., Hoek, M., Turner, S., Idrissi, H., van Tendeloo, G., & Hilgenkamp, H. (2014). Thin films of the spin ice compound Ho2Ti2O7. APL materials, 2(3), [032101]. https://doi.org/10.1063/1.4867222
Leusink, D.P. ; Coneri, F. ; Hoek, M. ; Turner, S. ; Idrissi, H. ; van Tendeloo, G. ; Hilgenkamp, H. / Thin films of the spin ice compound Ho2Ti2O7. In: APL materials. 2014 ; Vol. 2, No. 3.
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Leusink, DP, Coneri, F, Hoek, M, Turner, S, Idrissi, H, van Tendeloo, G & Hilgenkamp, H 2014, 'Thin films of the spin ice compound Ho2Ti2O7', APL materials, vol. 2, no. 3, 032101. https://doi.org/10.1063/1.4867222

Thin films of the spin ice compound Ho2Ti2O7. / Leusink, D.P.; Coneri, F.; Hoek, M.; Turner, S.; Idrissi, H.; van Tendeloo, G.; Hilgenkamp, H.

In: APL materials, Vol. 2, No. 3, 032101, 02.2014.

Research output: Contribution to journalArticleAcademicpeer-review

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Leusink DP, Coneri F, Hoek M, Turner S, Idrissi H, van Tendeloo G et al. Thin films of the spin ice compound Ho2Ti2O7. APL materials. 2014 Feb;2(3). 032101. https://doi.org/10.1063/1.4867222