Alessandro Palliotto

Data for: Magnetism and Nonlinear Charge Transport in NiFe2O4/γ-Al2O3/SrTiO3 Heterostructure: Toward Spintronic Applications

Amit Chanda, Thor Hvid-Olsen, Christina H. Christoffersen, Anshu Gupta et autres

We present the synthesis and study of the magnetic and electronic properties of NiFe2O4/γ-Al2O3/SrTiO3 heterostructure. The γ-Al2O3/SrTiO3 interface hosts a high-mobility two-dimensional electron gas (2DEG) with large spin-orbit coupling, making it promising for spintronic and nano-electronic device applications if it can be …

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Data for: Magnetism and Nonlinear Charge Transport in NiFe2O4/γ-Al2O3/SrTiO3 Heterostructure: Toward Spintronic Applications

Amit Chanda, Thor Hvid-Olsen, Christina H. Christoffersen, Anshu Gupta et autres

We present the synthesis and study of the magnetic and electronic properties of NiFe2O4/γ-Al2O3/SrTiO3 heterostructure. The γ-Al2O3/SrTiO3 interface hosts a high-mobility two-dimensional electron gas (2DEG) with large spin-orbit coupling, making it promising for spintronic and nano-electronic device applications if it can be …

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Magnetism and Nonlinear Charge Transport in NiFe 2 O 4 /γ‐Al 2 O 3 /SrTiO 3 Heterostructure: Toward Spintronic Applications

Amit Chanda, Thor Hvid-Olsen, Christina Hoegfeldt, Anshu Gupta et autres

ABSTRACT We present the synthesis and study of the magnetic and electronic properties of NiFe 2 O 4 /γ‐Al 2 O 3 /SrTiO 3 heterostructure. The γ‐Al 2 O 3 /SrTiO 3 interface hosts a high‐mobility 2D electron gas (2DEG) with large …

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Epitaxial Strain Engineering of High-Quality Freestanding Single-Crystalline Complex Oxides

Eric Brand, Christina Hoegfeldt, Alessandro Palliotto, I. V. Maznichenko et autres

Freestanding strongly correlated complex oxide thin films hold great potential in next-generation electronic and energy applications. Their high integrability and tunable properties may surpass those in bulk or epitaxial films. Water-assisted lift-off method is widely used to produce single-crystalline complex oxide membranes. …

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Tunable and Persistent Macroscopic Polarization in Nominally Centrosymmetric Defective Oxides

Daesung Park, Nini Pryds, Nicolas Gauquelin, Mahmoud Hadad et autres

Abstract Introducing symmetry breaking in materials enables the emergence of functionalities. This can be microscopically and macroscopically driven by applying external stimuli such as mechanical stress, electric field, temperature, and chemical modification. For instance, non‐zero net dipole moments are formed in a …

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Leveraging high fluence and low pressure for pulsed laser deposition of high-mobility γ-Al2O3/SrTiO3 heterostructure growth

Thor Hvid-Olsen, Christina Hoegfeldt, Amit Chanda, Alessandro Palliotto et autres

High-mobility oxide heterostructures could be applied for high-frequency devices, transparent conductors, and spin–orbit logic devices. SrTiO3 is one of the most studied oxide substrate materials for heterostructures. To date, the highest SrTiO3-based charge carrier mobility at 2 K was measured in the …

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Strain Engineering of Complex Oxide Membranes on Flexible Metallic Support

Eric Brand, Pol Sallés, Alessandro Palliotto, Haiyuan Wang et autres

Abstract Controlling material functionalities via external stimuli is a cornerstone of modern science and technology. One effective strategy involves tuning mechanical strain, which can be induced through lattice mismatch, electric fields, or applied mechanical force. Recent advances in fabricating freestanding single‐crystalline complex …

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Leveraging high fluence and low pressure for pulsed laser deposition of high-mobility $γ$-Al$_2$O$_3$/SrTiO$_3$ heterostructure growth

Thor Hvid-Olsen, Christina Hoegfeldt, Amit Chanda, Alessandro Palliotto et autres

High-mobility oxide heterostructures could be applied for high-frequency devices, transparent conductors, and spin-orbit logic devices. SrTiO$_3$ is one of the most studied oxide substrate materials for heterostructures. To date, the highest SrTiO3-based charge carrier mobility at 2 K was measured in the …

Quantifying the orientation dependence of diffraction contrast on magnetic STEM-DPC imaging of freestanding oxide thin films

Sivert Dagenborg, Andrea D’Alessio, Eric Brand, Nikolas Vitaliti et autres

Scanning Transmission Electron Microscopy - Differential Phase Contrast (STEM-DPC) is a 4D-STEM technique that allows quantitative characterization of electromagnetic fields down to nanoscale resolution. However, a significant challenge arises from diffractive intensity scattering in crystalline materials, which introduces distortive contrast that can …

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Defect-induced magnetic symmetry breaking in oxide materials

Eric Brand, Victor Rosendal, Yichen Wu, Thomas Tran et autres

Magnetic properties of crystalline solids are fundamental to a wide range of applications, capturing the attention of a vast scientific community. Thus, engineering magnetic order in materials such as ferromagnetism and antiferromagnetism holds great scientific and technological interest. Defects such as vacancies, …

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Tailoring dielectric permittivity of epitaxial Gd-doped CeO2−x films by ionic defects

Alessandro Palliotto, Yingwei Wu, A. D. Rata, Andreas Herklotz et autres

Abstract Engineering materials with highly tunable physical properties in response to external stimuli is a cornerstone strategy for advancing energy technology. Among various approaches, engineering ionic defects and understanding their roles are essential in tailoring emergent material properties and functionalities. Here, we …

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Minimising the distortive effects of diffraction on magnetic STEM-DPC imaging of monocrystalline thin films

Sivert Dagenborg, Andrea D’Alessio, Nikolas Vitaliti, Alessandro Palliotto et autres

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