@article {Každailis:2013:1610-1928:493,
title = "Surface Acoustic Wave Propagation in Lanthanum Strontium Manganese Oxide - Lithium Niobate Structures",
journal = "Acta Acustica united with Acustica",
parent_itemid = "infobike://dav/aaua",
publishercode ="dav",
year = "2013",
volume = "99",
number = "3",
publication date ="2013-05-01T00:00:00",
pages = "493-497",
itemtype = "ARTICLE",
issn = "1610-1928",
url = "https://www.ingentaconnect.com/content/dav/aaua/2013/00000099/00000003/art00016",
doi = "doi:10.3813/AAA.918629",
author = "Kadailis, Paulius and Girunien, Ramute and Rimeika, Romualdas and Iplys, Daumantas and liuien, Kristina and Lisauskas, Vaclovas and Vengalis, Bonifacas and Shur, Michael S.",
abstract = "Surface acoustic wave (SAW) propagation characteristics in the La0
.
67 Sr0
.
33MnO3(LSMO) - lithium niobate (LiNbO3) heterostructures have been experimentally studied at temperatures ranging
from 87 K to 432 K. The LSMO films with thickness of about 100 nm were grown in situ by DC magnetron sputtering on Y-plane of crystalline LiNbO3. The sample properties depended on the growth temperature. Electrical resistance of polycrystalline LSMO film grown at 450 \textdegreeC
decreased monotonically with increasing temperature, and the SAW attenuation and velocity of the heterostructure have been well described by the acoustoelectric interaction theory. Heterostructures with highly oriented LSMO films prepared at 620 \textdegreeC and 710 \textdegreeC exhibited peak-like anomalies
of SAW attenuation. Presence of frequency-dependent SAW attenuation peaks in the vicinity of the paramagnetic to ferromagnetic transition of the manganite films has been attributed to the electronic phase separation phenomena in the manganites. The demonstrated results revealed not only a
conventional SAW behaviour under thin film influence, but also an existence of additional LSMO fabrication process-dependent factors not described by the acoustoelectric interaction theory and a suitability of the used technique for the contactless LSMO probing and sensor applications.",
}