15 Result(s)
within
F. Miletto Granozio
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Article
Open AccessOrbital selective switching of ferromagnetism in an oxide quasi two-dimensional electron gas
Multi-orbital physics in quasi-two-dimensional electron gases (q2DEGs) triggers intriguing phenomena not observed in bulk materials, such as unconventional superconductivity and magnetism. Here, we investigate...
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Article
Open AccessTransition from a uni- to a bimodal interfacial charge distribution in \(\hbox {LaAlO}_3\) / \(\hbox {SrTiO}_3\) upon cooling
We present a combined resonant soft X-ray reflectivity and electric transport study of \(\hbox {LaAlO}_3\) LaAlO 3 / \(\hbox {SrTiO}_3\) SrTiO 3 field effect devices. The depth profiles with atomic laye...
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Article
Open AccessQuantifying the critical thickness of electron hybridization in spintronics materials
In the rapidly growing field of spintronics, simultaneous control of electronic and magnetic properties is essential, and the perspective of building novel phases is directly linked to the control of tuning pa...
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Article
Tunable spin polarization and superconductivity in engineered oxide interfaces
The insertion of a few unit-cell-thick EuTiO3 layers at the interface between LaAlO3 and SrTiO3 leads to the formation of an electric-field-tunable quasi-two-dimensional electron system where ferromagnetism and s...
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Article
Optical investigation of LaMnO3 thin films: a study of the 2-eV band
We measure the transmittance of LaMnO3 (LMO) thin films in the spectral range from 10 000 to 38 000 cm-1 as a function of temperature. The optical conductivity obtained from the transmittance data is decomposed ...
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Article
Intrinsic Electric Transport in CMR Thin-Films
The colossal magnetoresistance (CMR) manganese oxides, have been the subject of intense studies. To elucidate the mechanisms at work in the ferromagnetic metallic state is essential for the comprehension of th...
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Article
Influence of growth mode on stoichiometry in epitaxial calcium ruthenate thin films
Clear evidence about the influence of growth orientation on the stoichiometry of sputtered oxide thin films is reported and discussed. The growth of stoichiometric and of non-stoichiometric films is respective...
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Article
Interplay between structural anisotropy and order parameter symmetry effects in transport properties of YBa Cu O grain boundary Josephson junctions
We have designed an experiment that could allow to investigate, on the same sample, the interplay between the morphological anisotropy of high critical temperature superconductors and the effects related to th...
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Article
A new type of biepitaxialc-axis tilted YBCO Josephson junction
A novel fabrication procedure of high critical temperature superconductor Josephson junctions (HTCSJJ) has been developed by a 90° rotation of YBa2Cu3O7−x c-axis around an in-plane direction, on the basis of conc...
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Article
Morphological and structural properties of high quality YBCO thin films
High-quality YBCO thin films have been grown by Inverted Cylindrical Magnetron Sputtering (ICMS) on LaAlO3(100), SrTiO3(100), SrTiO3(110), and MgO(100) substrates. Transition temperatures of c-axis films exceed 9...
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Article
TlBaCaCuO superconducting thin films via metal-organic chemical vapour deposition (MOCVD) and thallium vapour diffusion
Superconducting thin films of the TlBaCaCuO family have been prepared through a combined approach of MOCVD and thallium vapour diffusion. A three-step process has been adopted involving i) the synthesis of Ba−...
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Article
Structural and morphological properties of ultrathin YBCO films grown on single-crystal substrates
Epitaxial (001)-oriented ultrathin YBCO films of different thicknesses are deposited by Inverted Cylindrical Magnetron Sputtering (ICMS) on (100) MgO single-crystal substrates. The mean films stoichiometry is ...
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Article
YBCO step-edge SQUIDs by magnetron sputtering technique
YBCO step-edge junction d.c. SQUIDs have been realized by using the Inverted Cylindrical Magnetron Sputtering (ICMS) technique. This last represents a novel technology for high-T c Josephson junct...
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Article
Magnetic penetration depth measurements on high-temperature superconducting thin films and their implications
Accurate measurements of the magnetic penetration depth λ of n-doped (Nd1.85Ce0.15CuO4−δ) and p-doped (YBa2Cu3O7−δ) high-temperature superconductors using a microscopic resonator are reported. The temperature dep...
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Article
In situ superconducting Y−Ba−Cu−O thin films by single-target r.f. magnetron sputtering
Superconductive thin films of Y−Ba−Cu−O have been grownin situ by r.f. magnetron sputtering from a single stoichiometric target on Al2O3 substrates. Zero-resistivity temperatures as high as 73 K have been achieve...
