The emergence of magnetic ordering at complex oxide interfaces tuned by defects

Autor: A. D. Rata, Javier Herrero-Martín, Arthur Ernst, Gregory J. Rees, Paul Muralt, Dae-Sung Park, Stefano Agrestini, S. Ostanin, Akash Bhatnagar, Igor V. Maznichenko, Nini Pryds, Yulin Gan, Vasiliki Tileli, Yunzhong Chen, Zheng-Dong Luo, Kathrin Dörr, Ingrid Mertig, Gyanendra Singh, Alexei Kalaboukhov, Junjie Li, Marc Walker

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Park, D S, Rata, A D, Maznichenko, I V, Ostanin, S, Gan, Y, Agrestini, S, Rees, G J, Walker, M, Li, J, Herrero-Martin, J, Singh, G, Luo, Z, Bhatnagar, A, Chen, Y, Tileli, V, Muralt, P, Kalaboukhov, A, Mertig, I, Dörr, K, Ernst, A & Pryds, N 2020, ' The emergence of magnetic ordering at complex oxide interfaces tuned by defects ', Nature Communications, vol. 11, no. 1, 3650 . https://doi.org/10.1038/s41467-020-17377-0
Nature Communications

Complex oxides show extreme sensitivity to structural distortions and defects, and the intricate balance of competing interactions which emerge at atomically defined interfaces may give rise to unexpected physics. In the interfaces of non-magnetic co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11fa292428029471b09f1cba5acdca58
http://link.springer.com/article/10.1038/s41467-020-17377-0

Atomically engineered interfaces yield extraordinary electrostriction

Autor: Haiwu Zhang, Nini Pryds, Dae-Sung Park, Nicolas Gauquelin, Simone Santucci, Dennis V. Christensen, Daen Jannis, Dmitry Chezganov, Diana A. Rata, Andrea R. Insinga, Ivano E. Castelli, Johan Verbeeck, Igor Lubomirsky, Paul Muralt, Dragan Damjanovic, Vincenzo Esposito

Publikováno v: Nature
Zhang, H, Pryds, N, Park, D-S, Gauquelin, N, Santucci, S, Christensen, D V, Jannis, D, Chezganov, D, Rata, D A, Insinga, A R, Castelli, I E, Verbeeck, J, Lubomirsky, I, Muralt, P, Damjanovic, D & Esposito, V 2022, ' Atomically engineered interfaces yield extraordinary electrostriction ', Nature, vol. 609, no. 7928, pp. 695-700 . https://doi.org/10.1038/s41586-022-05073-6

Electrostriction is a property of dielectric materials whereby an applied electric field induces a mechanical deformation proportional to the square of that field. The magnitude of the effect is usually minuscule (–19 m2 V–2 for simple oxides). H

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c06d544916701f3b1c00dfa90528523f

Vibration Mode Investigation of Piezoelectric Ultrasonic Microsensors on Buckled Diaphragms

Autor: Kaoru Yamashita, Tomoki Nishioka, Minoru Noda, Paul Muralt

Publikováno v: Proceedings, Vol 2, Iss 13, p 835 (2018)

Vibration mode of piezoelectric ultrasonic microsensors was investigated on buckled diaphragm structures from the viewpoint of higher order vibration modes than the fundamental one. Several vibration modes were generated on the diaphragms as the resp

Externí odkaz: https://doaj.org/article/1d3a7252a8554cf5a22d6e84af3a74c3

Effect of oxygen defects blocking barriers on gadolinium doped ceria (GDC) electro-chemo-mechanical properties

Autor: Ngo Van Nong, Robin Nigon, Simone Santucci, Paul Muralt, Ahsanul Kabir, Igor Lubomirsky, Maxim Varenik, Vincenzo Esposito

Publikováno v: Kabir, A, Santucci, S, Van Nong, N, Varenik, M, Lubomirsky, I, Nigon, R, Muralt, P & Esposito, V 2019, ' Effect of oxygen defects blocking barriers on gadolinium doped ceria (GDC) electro-chemo-mechanical properties ', Acta Materialia, vol. 174, pp. 53-60 . https://doi.org/10.1016/j.actamat.2019.05.009
Acta Materialia

Some oxygen defective metal oxides, such as cerium and bismuth oxides, have recently shown exceptional electrostrictive properties that are even superior to the best performing lead-based electrostrictors, e.g. lead-magnesium-niobates (PMN). Compared

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cc3d8a57790a1cc48783d09259671f0
https://doi.org/10.1016/j.actamat.2019.05.009

Resonant PZT MEMS Mirror with Segmented Electrodes

Autor: Jordan Maufay, Ramin Matloub, Andreas Tortschanoff, Mohssen Moridi, Jaka Pribosek, Paul Muralt, Adrien Piot, Johannes Schicker

Publikováno v: 2020 IEEE 33rd International Conference on Micro Electro Mechanical Systems (MEMS).

We report a transduction optimization method of piezo-based MEMS structures using segmentation of the excitation electrodes. Optimal transduction is achieved by matching the electric field distribution to the polarization distribution including the d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56e079f05f29437ed74d3ee73bf2146b
https://doi.org/10.1109/mems46641.2020.9056124