Carlos Frontera
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View article: Narrow‐Diameter Tubular One‐Dimensional van der Waals Heterostructures
Narrow‐Diameter Tubular One‐Dimensional van der Waals Heterostructures Open
The inherent flexibility of individual layers in 2D materials enables them to be rolled up into tubular structures, thereby combining the properties of 1D and 2D materials and further expanding their range of applications. Even greater opp…
View article: Substrate-driven structural coherence in epitaxial hematite thin films for spintronics
Substrate-driven structural coherence in epitaxial hematite thin films for spintronics Open
View article: Crystallographic Engineering of Spin Transport in Antiferromagnetic NiO Thin Films
Crystallographic Engineering of Spin Transport in Antiferromagnetic NiO Thin Films Open
In this work, we investigate how the crystallographic growth direction influences spin current transmission in antiferromagnetic (AF) NiO thin films. By manipulating epitaxial growth, we explored the spin transport characteristics in La
View article: Strain Relief and Domain Architecture in Epitaxial NiO Films on La<sub>2/3</sub>Sr<sub>1/3</sub>MnO<sub>3</sub>/SrTiO<sub>3</sub> for Spin‐Transport Engineering
Strain Relief and Domain Architecture in Epitaxial NiO Films on La<sub>2/3</sub>Sr<sub>1/3</sub>MnO<sub>3</sub>/SrTiO<sub>3</sub> for Spin‐Transport Engineering Open
This study reports on the epitaxial growth and structural characterization of ultrathin NiO‐films deposited by magnetron sputtering on La 2/3 Sr 1/3 MnO 3 (LSMO) films grown on SrTiO 3 (STO) substrates with (001)‐ and (111)‐orientations. X…
View article: Eu<sub>3</sub>Ta<sub>2</sub>ON<sub>5</sub>: an <i>n</i> = 2 Ruddlesden–Popper ferromagnetic oxynitride with long-range ordered anion vacancies
Eu<sub>3</sub>Ta<sub>2</sub>ON<sub>5</sub>: an <i>n</i> = 2 Ruddlesden–Popper ferromagnetic oxynitride with long-range ordered anion vacancies Open
Eu 2+ 3 Eu 3+ Ta 2 ON 5 is an anion deficient oxynitride with square pyramidal coordination for Ta that shows ferromagnetic order of Eu 2+ ions below 20 K, with superexchange interactions enhanced by nitride-reinforced hybridization of Eu–…
View article: Nitride Tuning of Magnetic Frustration in the Double Perovskite Ba<sub>2</sub>MnWO<sub>6</sub>
Nitride Tuning of Magnetic Frustration in the Double Perovskite Ba<sub>2</sub>MnWO<sub>6</sub> Open
The new double perovskite oxynitride Ba2MnWO4.42N1.58 has been obtained by topochemical ammonolysis at 700 °C of B-site ordered Ba2MnWO6 using a high NH3 flow rate of 600 cm…
View article: <i>FullProfAPP</i>: a graphical user interface for the streamlined automation of powder diffraction data analysis
<i>FullProfAPP</i>: a graphical user interface for the streamlined automation of powder diffraction data analysis Open
FullProfAPP is a software tool for data processing, refinement and visualization of large collections of powder diffraction patterns. Featuring an intuitive graphical user interface, it seamlessly facilitates a variety of tasks. These incl…
View article: Tuning of Antiferromagnetic Phase in La<sub>1–<i>x</i></sub>Sr<sub><i>x</i></sub>MnO<sub>3</sub> Epitaxial Thin Films by Polymer-Assisted Deposition Synthesis
Tuning of Antiferromagnetic Phase in La<sub>1–<i>x</i></sub>Sr<sub><i>x</i></sub>MnO<sub>3</sub> Epitaxial Thin Films by Polymer-Assisted Deposition Synthesis Open
Epitaxial thin films of the La1-xSrxMnO3 system, spanning a wide range of compositions (0.5 ≤ x ≤ 0.65), have been prepared, using the polymer-assisted deposition method, on SrTiO3 (100) substrates. The primary objective was to achieve the…
View article: Anionic and Magnetic Ordering in Rare Earth Tantalum Oxynitrides with an <i>n</i> = 1 Ruddlesden–Popper Structure
Anionic and Magnetic Ordering in Rare Earth Tantalum Oxynitrides with an <i>n</i> = 1 Ruddlesden–Popper Structure Open
The new compounds R2TaO4-xNx with R = La, Ce, Nd, and Eu and 1.20 ≤ x ≤ 2.81 have been obtained by a solid-state reaction between metal nitrides and oxides or oxynitrides under N2<…
View article: Spin Conduction and Interfacial Effects in La2/3sr1/3mno3/Nio/Pt Heterostructures
Spin Conduction and Interfacial Effects in La2/3sr1/3mno3/Nio/Pt Heterostructures Open
View article: Impact of Twin's Landscape on the Magnetic Damping of La<sub>2/3</sub>Sr<sub>1/3</sub>MnO<sub>3</sub> Thin Films
Impact of Twin's Landscape on the Magnetic Damping of La<sub>2/3</sub>Sr<sub>1/3</sub>MnO<sub>3</sub> Thin Films Open
Understanding the origin and mechanisms of magnetic damping in complex oxide materials is crucial for optimizing spin dynamics and tailoring their properties for specific spintronic applications. Ferromagnetic resonance spectroscopy (FMR) …
View article: Prussian Blue Analogues as Positive Electrodes for Mg Batteries: Insights into Mg<sup>2+</sup> Intercalation
Prussian Blue Analogues as Positive Electrodes for Mg Batteries: Insights into Mg<sup>2+</sup> Intercalation Open
Potassium manganese hexacianoferrate has been prepared by co‐precipitation from manganese (II) chloride and potassium citrate, with chemical analysis yielding the formula K 1.72 Mn[Fe(CN) 6 ] 0.92 □ 0.08 ⋅ 1.1H 2 O (KMnHCF). Its X‐ray diff…
View article: High-Temperature Synthesis of Ferromagnetic Eu<sub>3</sub>Ta<sub>3</sub>(O,N)<sub>9</sub> with a Triple Perovskite Structure
High-Temperature Synthesis of Ferromagnetic Eu<sub>3</sub>Ta<sub>3</sub>(O,N)<sub>9</sub> with a Triple Perovskite Structure Open
Europium tantalum perovskite oxynitrides were prepared by a new high-temperature solid-state synthesis under N2 or N2/H2 gas. The nitrogen stoichiometry was tuned from 0.63 to 1.78 atoms per Eu or Ta atom, …
View article: Spin-to-Charge Conversion in All-Oxide La<sub>2/3</sub>Sr<sub>1/3</sub>MnO<sub>3</sub>/SrIrO<sub>3</sub> Heterostructures
Spin-to-Charge Conversion in All-Oxide La<sub>2/3</sub>Sr<sub>1/3</sub>MnO<sub>3</sub>/SrIrO<sub>3</sub> Heterostructures Open
Spin injection and spin-charge conversion processes in all-oxide La2/3Sr1/3MnO3/SrIrO3 (LSMO/SIO) heterostructures with different SIO layer thickness and interfacial features have been studied. F…
View article: NFFA-Europe Pilot - D2.3 - First assessment of access provision
NFFA-Europe Pilot - D2.3 - First assessment of access provision Open
Analysis of the demand, of the use of the IDRIN and of new potential developments.
View article: Artificial Graphene Spin Polarized Electrode for Magnetic Tunnel Junctions
Artificial Graphene Spin Polarized Electrode for Magnetic Tunnel Junctions Open
2D materials offer the ability to expose their electronic structure to manipulations by a proximity effect. This could be harnessed to craft properties of 2D interfaces and van der Waals heterostructures in devices and quantum materials. W…
View article: Synchrotron radiation based <i>operando</i> characterization of battery materials
Synchrotron radiation based <i>operando</i> characterization of battery materials Open
Synchrotron radiation enables probing a wide range of length scales operando , hence being a powerful tool in battery research. Challenges ahead involve cell design (especially for multi-modal approaches) and protocols for automated data a…
View article: X-ray Absorption Spectroscopy Study of Thickness Effects on the Structural and Magnetic Properties of Pr2−δNi1−xMn1+xO6−y Double Perovskite Thin Films
X-ray Absorption Spectroscopy Study of Thickness Effects on the Structural and Magnetic Properties of Pr2−δNi1−xMn1+xO6−y Double Perovskite Thin Films Open
In this work, we report a systematic study of the influence of film thickness on the structural and magnetic properties of epitaxial thin films of Pr2−δNi1−xMn1+xO6−y (PNMO) double perovskite grown on top of two different (001)-SrTiO3 and …
View article: β-V<sub>2</sub>O<sub>5</sub> as Magnesium Intercalation Cathode
β-V<sub>2</sub>O<sub>5</sub> as Magnesium Intercalation Cathode Open
Magnesium batteries have attracted great attention as an alternative to Li-ion batteries but still suffer from limited choice of positive electrode materials. V2O5 exhibits high theoretical capacities, but previous st…
View article: Interfacial Magnetic Features of La<sub>2</sub>CoMnO<sub>6</sub>/Pt Bilayers Studied by Using Spin Hall Magnetoresistance
Interfacial Magnetic Features of La<sub>2</sub>CoMnO<sub>6</sub>/Pt Bilayers Studied by Using Spin Hall Magnetoresistance Open
Spin Hall magnetoresistance (SMR) is used to study interfacial magnetic features in La 2 CoMnO 6 (LCMO)/Pt bilayers. LCMO is a ferromagnetic insulator with a Curie temperature T c = 250 K and a strong magnetic anisotropy that can be tuned …
View article: Neodymium europium oxynitridosilicates of β-K2SO4 type: Structural, magnetic and red luminescence properties
Neodymium europium oxynitridosilicates of β-K2SO4 type: Structural, magnetic and red luminescence properties Open
Rare earth activated nitridosilicates have important applications as phosphor components in white light emitting diodes. (Oxy)nitridosilicates with beta-K2SO4 structure doped with Eu2+ are luminescent materials with emission wavelengths ra…
View article: Optimization of the Growth Process of Double Perovskite Pr2−δNi1−xMn1+xO6−y Epitaxial Thin Films by RF Sputtering
Optimization of the Growth Process of Double Perovskite Pr2−δNi1−xMn1+xO6−y Epitaxial Thin Films by RF Sputtering Open
Epitaxial thin films of Pr2−δNi1−xMn1+xO6−y (PNMO) double perovskite were grown on (001)-oriented SrTiO3 substrates by RF magnetron sputtering. The influence of the growth parameters (oxygen pressure, substrate temperature, and annealing t…
View article: MnTa<sub>2</sub>N<sub>4</sub>: A Ternary Nitride Spinel with a Strong Magnetic Frustration
MnTa<sub>2</sub>N<sub>4</sub>: A Ternary Nitride Spinel with a Strong Magnetic Frustration Open
Magnetic frustration results from competing magnetic interactions and leads to unusual ground states, ranging from non-collinear magnetic orders to spin liquids (SLs), opening the path to new physics and emerging properties. We report the …
View article: Elucidation of the redox activity of Ca2MnO3.5 and CaV2O4 in calcium batteries using operando XRD: charge compensation mechanism and reversibility
Elucidation of the redox activity of Ca2MnO3.5 and CaV2O4 in calcium batteries using operando XRD: charge compensation mechanism and reversibility Open
View article: Suppression of spin rectification effects in spin pumping experiments
Suppression of spin rectification effects in spin pumping experiments Open
View article: Spin to charge conversion in chemically deposited epitaxial La<sub>0.9</sub>MnO<sub>3</sub> thin films capped with Pt
Spin to charge conversion in chemically deposited epitaxial La<sub>0.9</sub>MnO<sub>3</sub> thin films capped with Pt Open
Spin-charge conversion process is studied in La 0.92 MnO 3 /Pt prepared by polymer-assisted deposition. Significant spin transport across the LMO/Pt interface is achieved thus, LMO could be a promising building block for all-oxide spintron…
View article: Strong strain gradients and phase coexistence at the metal-insulator transition in VO2 epitaxial films
Strong strain gradients and phase coexistence at the metal-insulator transition in VO2 epitaxial films Open
The proximity of a thermodynamic triple point and the formation of transient metastable phases may result in complex phase and microstructural trajectories across the metal-insulator transition in strained VO2 films. A detailed analysis us…
View article: <i>Operando</i> Synchrotron X-ray Diffraction in Calcium Batteries: Insights into the Redox Activity of 1D Ca<sub>3</sub>CoMO<sub>6</sub> (M = Co and Mn)
<i>Operando</i> Synchrotron X-ray Diffraction in Calcium Batteries: Insights into the Redox Activity of 1D Ca<sub>3</sub>CoMO<sub>6</sub> (M = Co and Mn) Open
1D Ca3Co2-z M z O6 (M = Co z = 0, M = Mn z = 1, and M = Fe z = 0.4) were prepared and tested electrochemically. While the iron-containing phase was not found to…
View article: Formation of Nickel Oxide Nanocuboids in Ferromagnetic La2Ni1−xMn1+xO6
Formation of Nickel Oxide Nanocuboids in Ferromagnetic La2Ni1−xMn1+xO6 Open
The control of the spontaneous formation of nanostructures at the surface of thin films is of strong interest in many different fields, from catalysts to microelectronics, because surface and interfacial properties may be substantially enh…
View article: Rapid Thermal Annealing of Double Perovskite Thin Films Formed by Polymer Assisted Deposition
Rapid Thermal Annealing of Double Perovskite Thin Films Formed by Polymer Assisted Deposition Open
The annealing process is an important step common to epitaxial films prepared by chemical solution deposition methods. It is so because the final microstructure of the films can be severely affected by the precise features of the thermal p…