1998
DOI: 10.1063/1.120603
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Direct measurement of strain effects on magnetic and electrical properties of epitaxial SrRuO3 thin films

Abstract: By lifting an epitaxial thin film off its growth substrate, we directly and quantitatively demonstrate how elastic strain can alter the magnetic and electrical properties of single-domain epitaxial SrRuO3 thin films (1000 Å thick) on vicinal (001) SrTiO3 substrates. Free-standing films were then obtained by selective chemical etching of the SrTiO3. X-ray diffraction analysis shows that the free-standing films are strain free, whereas the original as-grown films on SrTiO3 substrates are strained due to the latt… Show more

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Cited by 276 publications
(234 citation statements)
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“…This definition gives a value for T c which is close to the one that was determined using the intersection point. The Curie temperature T c in bulk samples is 160 K, whereas in our thin film specimen it is reduced by about 15 K. This shift is in agreement with XRD results and may be explained by the presence of lattice strain in the film 34,38 and/or the nonstoichiometry effect. 19 Resonant UPS experiments were performed in the synchrotron radiation laboratory HASYLAB, Hamburg (Germany).…”
Section: Methodssupporting
confidence: 79%
“…This definition gives a value for T c which is close to the one that was determined using the intersection point. The Curie temperature T c in bulk samples is 160 K, whereas in our thin film specimen it is reduced by about 15 K. This shift is in agreement with XRD results and may be explained by the presence of lattice strain in the film 34,38 and/or the nonstoichiometry effect. 19 Resonant UPS experiments were performed in the synchrotron radiation laboratory HASYLAB, Hamburg (Germany).…”
Section: Methodssupporting
confidence: 79%
“…The amplitude reduction is caused by the contractive magnetic contribution to the stress driving the SL oscillations. Such a contribution originates from the strong magneto-volume effect present in bulk [36] and nanolayered SRO [37]. At T = 20 K, the magnetostriction reaches a very high value of approximately η mag = 2.5 × 10 −3 , in quantitative agreement with the expected magnitude for SRO nanolayers grown on STO substrate [37].…”
Section: Ultrafast Magnetostriction In Srosupporting
confidence: 73%
“…In this paper, we will describe the orientation of the SRO in terms of the pseudocubic lattices parameters a bulk = b bulk = c bulk = 3.93Å. [15,16] These lattice parameters are rotated 45 • from the orthorhombic, nearly cubic lattice parameters a bulk = 5.57Å, b bulk = 5.53Åand c bulk ≈ 7.84Å.…”
mentioning
confidence: 99%
“…In this paper, we will describe the orientation of the SRO in terms of the pseudocubic lattices parameters a bulk = b bulk = c bulk = 3.93Å. [15,16] These lattice parameters are rotated 45 • from the orthorhombic, nearly cubic lattice parameters a bulk = 5.57Å, b bulk = 5.53Åand c bulk ≈ 7.84Å.All SrRuO 3 films exhibited good epitaxy, as indicated by the X-Ray Diffraction (XRD) spectra that showed only SrRuO 3 film peaks with the same orientation as the underlying substrates. Films had excellent crystallinity with typical mosaic spreads of approximately 0.06 • on (001) STO, 0.11 • on 001 LSAT and 0.45 • on (001) LAO.…”
mentioning
confidence: 99%