Publications database

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2018-11-10
11:28
[FZJ-2018-05450] Journal Article
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Origin of Degradation in Si-Based All-Solid-State Li-Ion Microbatteries
Like all rechargeable battery systems, conventional Li‐ion batteries (LIB) inevitably suffer from capacity losses during operation. This also holds for all‐solid‐state LIB. [...]
ddc:600
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2018-10-31
11:28
[FZJ-2018-06142] Conference Presentation (Other)
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Effect of Core Crystallization on Molecular Exchange in Amphiphilic Block Copolymer Micelles
XVII International Small Angle Scattering Conference, Traverse CityTraverse City, USA, 7 Oct 2018 - 12 Oct 20182018-10-072018-10-12

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2018-10-29
10:52
DBCoverage [IMPULSE-2018-00264] Review/Journal Article
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Non-reciprocal magnons in non-centrosymmetric MnSi
AIP Advances 8(10), 101328 - () [10.1063/1.5041036]
Using two cold-neutron triple-axis spectrometers we have succeeded in fully mapping out the field-dependent evolution of the non-reciprocal magnon dispersion relations in all magnetic phases of MnSi. The non-reciprocal nature of the dispersion manifests itself in a full asymmetry (non-reciprocity) of the dynamical structure factor S(q,E,μ$_0$H$_{int}$) with respect to flipping either the direction of the applied magnetic field μ$_0$H$_{int}$, the reduced momentum transfer q, or the energy transfer E..
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ddc:530
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2018-10-22
13:52
[IMPULSE-2018-00262] Journal Article
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Fabrication of gadolinium particle-based absorption gratings for neutron grating interferometry
The imaging performance of a neutron-based Talbot-Lau interferometer depends to a great extent on the absorption characteristics of the source and analyzer gratings. Due to its high neutron attenuation, gadolinium (Gd) is the preferred material for grating fabrication, but suffers from difficulties with deposition time, stability, uniformity, and selectivity into high aspect ratio structures. [...]
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ddc:620
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2018-10-22
10:53
[IMPULSE-2018-00260] Journal Article
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In Situ Neutron Diffraction Study of Lithiation Gradients in Graphite Anodes during Discharge and Relaxation
Reduced capacity and rate capability at low temperature operation is a limiting factor for application of lithium-ion batteries in electro mobility. The visualization of electrode inhomogeneity resulting from low-temperature lithium transport limitations can illustrate the shortcomings of current electrode design. [...]
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ddc:320
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2018-10-08
12:41
OpenAccess [FZJ-2018-05175] Journal Article
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Stability of near-surface ordering of bicontinuous microemulsions in external shear-fields
The lubrication effect of bicontinuous microemulsions describes a facilitated flow along hydrophilic planar surfaces because the fluid forms lamellar domains that can slide off along each other much better than randomly ordered domains. The applicability of this effect is based on the prerequisite of the lamellar structure not being destroyed by external shear-fields. [...]
ddc:540
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2018-10-08
12:41
OpenAccess [FZJ-2018-04594] Journal Article
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A Combined Magnetic-Acoustic Device for Simultaneous, Coaligned Application of Magnetic and Ultrasonic Fields
Acoustically‐responsive microbubbles have been widely researched as agents for both diagnostic and therapeutic applications of ultrasound. There has also been considerable interest in magnetically‐functionalised microbubbles as multi‐modality imaging agents and carriers for targeted drug delivery. [...]
ddc:600
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2018-10-06
11:47
[FZJ-2018-05675] Conference Presentation (Invited)
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New High Pressure Cells for Single Crystal Diffraction with Hot Neutrons at the Heinz Maier-Leibnitz Zentrum (MLZ)
2018 Workshop of the IUCr commission on high pressure, IUCr HP 2018, HonoluluHonolulu, USA, 29 Jul 2018 - 2 Aug 20182018-07-292018-08-02

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2018-09-28
11:28
[FZJ-2018-05445] Journal Article
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Uniaxial and hydrostatic pressure effects in α -RuCl 3 single crystals via thermal-expansion measurements
We present high-resolution thermal-expansion and specific-heat measurements of single crystalline α-RuCl3. An extremely hysteretic structural transition expanding over 100 K is observed by thermal-expansion along both crystallographic axes, which we attribute to a change of stacking sequence of the RuCl3 layers. [...]
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ddc:530
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2018-09-24
09:00
[IMPULSE-2018-00259] Journal Article
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(Invited) Vacancy-Type Defects and Their Carrier Trapping Properties in GaN Studied by Monoenergetic Positron Beams
ECS transactions 86(10), 149 - 160 () [10.1149/08610.0149ecst]
Positron annihilation is a powerful technique for evaluating point defects in semiconductors. Using this technique, one can detect vacancy-type defects in subsurface regions with high-sensitivity [...]
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ddc:540
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