A5015460543- Nuclear Physics and Applications
- Advanced Condensed Matter Physics
- Atomic and Subatomic Physics Research
- Magnetic and transport properties of perovskites and related materials
- Superconducting Materials and Applications
- Ion-surface interactions and analysis
- Magnetic Properties and Applications
- Magnetic properties of thin films
- Physics of Superconductivity and Magnetism
- Metallic Glasses and Amorphous Alloys
- Advanced NMR Techniques and Applications
- High-pressure geophysics and materials
- Fusion materials and technologies
- Magnetic confinement fusion research
- Radiation Detection and Scintillator Technologies
- Multiferroics and related materials
- Advanced Battery Materials and Technologies
- Muon and positron interactions and applications
- Chemical Synthesis and Characterization
- Particle Detector Development and Performance
- Advanced Materials Characterization Techniques
- Magnetism in coordination complexes
- Metal and Thin Film Mechanics
- Organic Electronics and Photovoltaics
- Inorganic Fluorides and Related Compounds
Linköping University
2022-2025
Thinfilm (Sweden)
2023-2025
KTH Royal Institute of Technology
2020
Multilayer neutron optics require precise control of interface morphology for optimal performance. In this work, we investigate the effects different growth conditions on Ni/Ti-based multilayers, with a focus incorporating low-neutron-absorbing 11B4C and using ion assistance schemes. Grazing-incidence small-angle X-ray scattering was used to probe structural morphological details buried interfaces, revealing that layers become more strongly correlated interfaces form mounds increasing...
The utilization of polarized neutrons is great importance in scientific disciplines spanning materials science, physics, biology, and chemistry. However, state-of-the-art multilayer polarizing neutron optics have limitations, particularly low specular reflectivity polarization at higher scattering vectors/angles, the requirement high external magnetic fields to saturate polarizer magnetization. Here, we show that, by incorporating
This study explores the impact of boron carbide (B4C) addition on magnetic domains within Fe/Si multilayers through off-specular neutron scattering with polarization analysis. The incorporation B4C induces amorphization in layers, disrupting domain structures. Analysis patterns reveals that pure exhibit no significant correlation between resulting a specific diffuse signal, while incorporated revealed scattering. We offer qualitative interpretation these phenomena and accurately model...
This study investigates the effects of 11B4C co-sputtering on structural and optical properties Fe/Si stacked multilayers, with a focus neutron supermirror applications. X-ray reflectivity techniques reveal that incorporation improves interface sharpness, reduces roughness, enhances for all multilayer periods. Neutron measurements show reduced spin-flip intensities, while wafer-curvature indicate 50% reduction in internal stress, allowing higher mechanical stability multilayers. These...
This study investigates the effects of incorporating 11B4C interlayers into Fe/Si multilayers, with a focus on interface quality, reflectivity, polarization, and magnetic properties for polarized neutron optics. It is found that introduction 1 {\AA} 2 significantly improves sharpness, reducing width preventing excessive Si diffusion Fe layers. X-ray reflectivity measurements show enhanced notable increase in polarization 30 period multilayers. The inclusion also helps prevent formation...
Magnetic hysteresis properties in Fe/Si multilayers have been studied as a function of the B4C content to control magnetization amplitude, coercivity, and tilt, that are beneficial tune for advancing applications e.g. data storage, spintronics, sensors. With an ion-assisted magnetron sputtering technique, 35 distinct thin film multilayer samples were prepared their magnetic structural characterized by vibrating sample magnetometry, X-ray photoelectron spectroscopy, near edge absorption fine...
Abstract In the quest for developing novel and efficient batteries, a great interest has been raised sustainable K-based honeycomb layer oxide materials, both their application in energy devices as well fundamental material properties. A key issue realization of batteries based on such compounds, is to understand K-ion diffusion mechanism. However, investigation potassium-ion (K $$^+$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow/> <mml:mo>+</mml:mo>...
Two-dimensional (2D) triangular lattice antiferromagnets (2D-TLA) often manifest intriguing physical and technological properties, due to the strong interplay between geometry electronic properties. The recently synthesized 2-dimensional transition metal dichalcogenide LiCrTe[Formula: see text], being a 2D-TLA, enriched range of materials which can present such In this work, muon spin rotation ([Formula: text]SR) neutron powder diffraction (NPD) have been utilized reveal true magnetic nature...
Highly concentrated electrolytes have been found to improve the cycle life and Coulombic efficiency of lithium metal anodes, as well suppress dendrite growth. However, mechanism for these improvements is not understood. Partly, this can be linked difficulty accurately characterizing solid electrolyte interphase (SEI), known play an important role anode stability stripping/plating efficiency. Herein, in situ neutron reflectometry used obtain information about SEI formation a highly...
Thermally activated Na diffusion mechanism in the honeycomb-like 1D channels of solid solution x Ca 1− Cr 2 O 4 .
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State-of-the-art Ni/Ti supermirror neutron optics have limited reflected intensity and a restricted energy range due to the interface width. Incorporating low-neutron-absorbing 11B4C enhances reflectivity allows for thinner layers be deposited, with which more efficient supermirrors higher m-values can realized. However, incorporating reduces optical contrast, limiting attainable at low scattering vectors, making this approach infeasible. This study explores various approaches optimize...
The concept of scattering length density tuning for improved polarization is investigated Fe/<a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mrow><a:mmultiscripts><a:mi mathvariant="normal">B</a:mi><a:mn>4</a:mn><a:none/><a:mprescripts/><a:none/><a:mn>11</a:mn></a:mmultiscripts><a:mi>CTi</a:mi></a:mrow></a:math> multilayers and compared to the commonly used Fe/Si system in polarizing multilayer neutron optics. X-ray reflectivity, magnetization, were measured on such multilayers,...
Multilayer neutron optics require precise control of interface morphology for optimal performance. In this work, we investigate the effects different growth conditions on Ni/Ti based multilayers, with a focus incorporating low-neutron-absorbing 11B4C and using ion assistance schemes. Grazing incidence small angle X-ray scattering was used to probe structural morphological details buried interfaces, revealing that layers become more strongly correlated interfaces form mounds increasing...
Abstract The mixed valence Cr 3+ /Cr 4+ compound NaCr 2 O 4 , hosts a plethora of unconventional electronic properties. In the present study, muon spin rotation/relaxation ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msup> <mml:mi>μ</mml:mi> <mml:mo>+</mml:mo> </mml:msup> </mml:math> SR) and high-resolution time-of-flight neutron powder diffraction measurements were carried out on high-quality samples to clarify complex magnetic ground state this unique...
Abstract Harvesting indoor light to power electronic devices for the Internet of Things has become an application scenario emerging photovoltaics, especially utilizing organic photovoltaics (OPVs). Combined liquid‐ and solid‐state processing, such as printing lamination used in industry developing OPVs, also provides a new opportunity investigate device structure, which is otherwise hardly possible based on conventional approach due solvent orthogonality. This study investigates impact...
The concept of scattering length density tuning for improved polarization is investigated Fe/11B4CTi multilayers and compared to the commonly used Fe/Si system in polarizing multilayer neutron optics. X-ray reflectivity, magnetization, have been measured on such multilayers, highlighting differences from conventional systems are deposited with 25 Å period thickness 20 repetitions using ion-assisted DC magnetron sputtering. Replacing Si 11B4CTi shows a more than 200% increase reflectivity due...
State-of-the-art Ni/Ti supermirror neutron optics have limited reflected intensity and a restricted energy range due to the interface width. Incorporating low-neutron-absorbing 11B4C enhances reflectivity allows for thinner layers be deposited, with which more efficient supermirrors higher m-values can realized. However, incorporating reduces optical contrast, limiting attainable at low scattering vectors, making this approach infeasible. This study explores various approaches optimize...