Coexistence of weak ferromagnetism and polar lattice distortion in epitaxial NiTiO3 thin films of the LiNbO3-type structure

Tamas Varga; Timothy C. Droubay; Mark E. Bowden; Robert J. Colby; Sandeep Manandhar; Vaithiyalingam Shutthanandan; Dehong Hu; Bernd C. Kabius; Edoardo Apra; William A. Shelton; Scott A. Chambers

doi:10.1116/1.4801664

Coexistence of weak ferromagnetism and polar lattice distortion in epitaxial NiTiO₃ thin films of the LiNbO₃-type structure

Tamas Varga, Timothy C. Droubay, Mark E. Bowden, Robert J. Colby, Sandeep Manandhar, Vaithiyalingam Shutthanandan, Dehong Hu, Bernd C. Kabius, Edoardo Apra, William A. Shelton, Scott A. Chambers

Materials Research Institute (MRI)

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

22 Scopus citations

Abstract

The authors report the magnetic and structural characteristics of epitaxial NiTiO₃ films grown by pulsed laser deposition that are isostructural with acentric LiNbO₃ (space group R3c). Optical second harmonic generation and magnetometry demonstrate lattice polarization at room temperature and weak ferromagnetism below 250 K, respectively. These results appear to be consistent with earlier predictions from first-principles calculations of the coexistence of ferroelectricity and weak ferromagnetism in a series of transition metal titanates crystallizing in the LiNbO₃ structure. This acentric form of NiTiO₃ is believed to be one of the rare examples of ferroelectrics exhibiting weak ferromagnetism generated by a Dzyaloshinskii-Moriya interaction.

Original language	English (US)
Article number	030603
Journal	Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics
Volume	31
Issue number	3
DOIs	https://doi.org/10.1116/1.4801664
State	Published - May 2013

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Instrumentation
Process Chemistry and Technology
Surfaces, Coatings and Films
Electrical and Electronic Engineering
Materials Chemistry

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Varga, T., Droubay, T. C., Bowden, M. E., Colby, R. J., Manandhar, S., Shutthanandan, V., Hu, D., Kabius, B. C., Apra, E., Shelton, W. A., & Chambers, S. A. (2013). Coexistence of weak ferromagnetism and polar lattice distortion in epitaxial NiTiO₃ thin films of the LiNbO₃-type structure. Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics, 31(3), Article 030603. https://doi.org/10.1116/1.4801664

@article{76b6c6629bdb4be5a58a3e0e6e40a548,

title = "Coexistence of weak ferromagnetism and polar lattice distortion in epitaxial NiTiO3 thin films of the LiNbO3-type structure",

abstract = "The authors report the magnetic and structural characteristics of epitaxial NiTiO3 films grown by pulsed laser deposition that are isostructural with acentric LiNbO3 (space group R3c). Optical second harmonic generation and magnetometry demonstrate lattice polarization at room temperature and weak ferromagnetism below 250 K, respectively. These results appear to be consistent with earlier predictions from first-principles calculations of the coexistence of ferroelectricity and weak ferromagnetism in a series of transition metal titanates crystallizing in the LiNbO3 structure. This acentric form of NiTiO3 is believed to be one of the rare examples of ferroelectrics exhibiting weak ferromagnetism generated by a Dzyaloshinskii-Moriya interaction.",

author = "Tamas Varga and Droubay, {Timothy C.} and Bowden, {Mark E.} and Colby, {Robert J.} and Sandeep Manandhar and Vaithiyalingam Shutthanandan and Dehong Hu and Kabius, {Bernd C.} and Edoardo Apra and Shelton, {William A.} and Chambers, {Scott A.}",

note = "Funding Information: The research was performed using the Environmental Molecular Sciences Laboratory, a national scientific user facility, sponsored by the Department of Energy's Office of Biological and Environmental Research, located at Pacific Northwest National Laboratory. Pacific Northwest National Laboratory is a multiprogram national laboratory operated for the U.S. Department of Energy by the Battelle Memorial Institute under Contract DE-AC06-76RLO 1830. T.V. gratefully acknowledges support by EMSL's Intramural Research and Capability Development Program. A portion of this work was supported by the EMSL William Wiley postdoctoral fellowship. ",

year = "2013",

month = may,

doi = "10.1116/1.4801664",

language = "English (US)",

volume = "31",

journal = "Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics",

issn = "2166-2746",

publisher = "AVS Science and Technology Society",

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Varga, T, Droubay, TC, Bowden, ME, Colby, RJ, Manandhar, S, Shutthanandan, V, Hu, D, Kabius, BC, Apra, E, Shelton, WA & Chambers, SA 2013, 'Coexistence of weak ferromagnetism and polar lattice distortion in epitaxial NiTiO₃ thin films of the LiNbO₃-type structure', Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics, vol. 31, no. 3, 030603. https://doi.org/10.1116/1.4801664

TY - JOUR

T1 - Coexistence of weak ferromagnetism and polar lattice distortion in epitaxial NiTiO3 thin films of the LiNbO3-type structure

AU - Varga, Tamas

AU - Droubay, Timothy C.

AU - Bowden, Mark E.

AU - Colby, Robert J.

AU - Manandhar, Sandeep

AU - Shutthanandan, Vaithiyalingam

AU - Hu, Dehong

AU - Kabius, Bernd C.

AU - Apra, Edoardo

AU - Shelton, William A.

AU - Chambers, Scott A.

N1 - Funding Information: The research was performed using the Environmental Molecular Sciences Laboratory, a national scientific user facility, sponsored by the Department of Energy's Office of Biological and Environmental Research, located at Pacific Northwest National Laboratory. Pacific Northwest National Laboratory is a multiprogram national laboratory operated for the U.S. Department of Energy by the Battelle Memorial Institute under Contract DE-AC06-76RLO 1830. T.V. gratefully acknowledges support by EMSL's Intramural Research and Capability Development Program. A portion of this work was supported by the EMSL William Wiley postdoctoral fellowship.

PY - 2013/5

Y1 - 2013/5

N2 - The authors report the magnetic and structural characteristics of epitaxial NiTiO3 films grown by pulsed laser deposition that are isostructural with acentric LiNbO3 (space group R3c). Optical second harmonic generation and magnetometry demonstrate lattice polarization at room temperature and weak ferromagnetism below 250 K, respectively. These results appear to be consistent with earlier predictions from first-principles calculations of the coexistence of ferroelectricity and weak ferromagnetism in a series of transition metal titanates crystallizing in the LiNbO3 structure. This acentric form of NiTiO3 is believed to be one of the rare examples of ferroelectrics exhibiting weak ferromagnetism generated by a Dzyaloshinskii-Moriya interaction.

AB - The authors report the magnetic and structural characteristics of epitaxial NiTiO3 films grown by pulsed laser deposition that are isostructural with acentric LiNbO3 (space group R3c). Optical second harmonic generation and magnetometry demonstrate lattice polarization at room temperature and weak ferromagnetism below 250 K, respectively. These results appear to be consistent with earlier predictions from first-principles calculations of the coexistence of ferroelectricity and weak ferromagnetism in a series of transition metal titanates crystallizing in the LiNbO3 structure. This acentric form of NiTiO3 is believed to be one of the rare examples of ferroelectrics exhibiting weak ferromagnetism generated by a Dzyaloshinskii-Moriya interaction.

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JO - Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics

JF - Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics

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M1 - 030603

ER -

Coexistence of weak ferromagnetism and polar lattice distortion in epitaxial NiTiO₃ thin films of the LiNbO₃-type structure

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