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2022-09-27
11:28
OpenAccess [FZJ-2022-03461] Conference Presentation (After Call)
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Topological magnons driven by the Dzyaloshinskii-Moriya interaction in the centrosymmetric ferromagnet Mn5Ge3
DPG-Tagung der Sektion Kondensierte Materie, DPG 2022, RegensburgRegensburg, Germany, 4 Sep 2022 - 9 Sep 20222022-09-042022-09-09
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2022-09-03
11:28

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2022-09-03
11:28

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2022-08-28
11:28
OpenAccess [FZJ-2022-03030] Journal Article
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In-situ study of the impact of temperature and architecture on the interfacial structure of microgels
The structural characterization of microgels at interfaces is fundamental to understand both their 2D phase behavior and their role as stabilizers that enable emulsions to be broken on demand. However, this characterization is usually limited by available experimental techniques, which do not allow a direct investigation at interfaces. [...]
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2022-08-28
11:28
OpenAccess [FZJ-2022-02989] Journal Article
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Aggregation Behavior of Nonsymmetrically End-Capped Thermoresponsive Block Copolymers in Aqueous Solutions: Between Polymer Coils and Micellar States
Macromolecules 55(13), 5849 - 5863 () [10.1021/acs.macromol.2c00878]
The thermosensitive aggregation behavior in an aqueous solution of a library of amphiphilic BAB* copolymers is studied, where “A” represents a long permanently hydrophilic poly(N,N-dimethylacrylamide) (pDMAm) block, “B” represents a permanently hydrophobic end with an n-dodecyl chain, and “B*” represents a thermoresponsive (TR) block featuring a lower critical solution temperature (LCST). Four polyacrylamides are employed for B*, namely, poly(N-n-propylacrylamide) (pNPAm), poly(N-isopropylacrylamide) (pNiPAm), poly(N,N-diethylacrylamide) (pDEAm), and poly(N-acryloylpyrrolidine) (pNAP), which differ with respect to the hydrophilicity of their amide side chains and LCST behavior. [...]
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2022-08-28
11:28
OpenAccess [FZJ-2022-02746] Journal Article
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Synthesis of Iron Oxide Magnetic Nanoparticles and Their Effect on Growth, Productivity, and Quality of Tomato
The influence of the structure, phase composition, textural and colloidal properties of magnetic iron oxides nanoparticles in the form of aqueous suspensions with a concentration of 0.001 and 0.01 mg/L on the growth, productivity of tomatoes and quality of its fruits after their foliar processing was shown. It was found that the maximum positive effect was observed during foliar treatment of tomato plants with aqueous suspensions of iron oxide samples with specific surface area (~52 and ~75 m2/g), two-level hierarchical structure, hydrodynamic diameters (~150 and ~180 nm) in stable aqueous suspensions (the absolute value of the ζ-potential is ≈ 30 mV)..
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2022-08-10
09:19
[IMPULSE-2022-00278] Journal Article
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Synthesis, Structure and Magnetic Properties of Multilayer Nanoheterostructures Fe|MgO|Cr|MgO|Fe
Layered nanoheterostructure Fe|MgO|Cr|MgO|Fe is an artificial ferromagnetic material in which exchange interaction of magnetic moments in the iron layers through intermediate dielectric and metal layers can lead to magnetic configurations which do not appear in well-studied systems Fe|MgO|Fe and Fe|Cr|Fe. In this work correlations of the structural and magnetic properties of layered nanoheterostructures Fe(10 nm)|MgO(1.5 nm)|Cr(t nm)|MgO(1.5 nm)|Fe(7 nm) (with the thickness t being 0.9 and 1.8 nm) were studied. [...]
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2022-08-09
10:54
DBCoverage [IMPULSE-2022-00277] Journal Article
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Neutron crystallographic analysis of the nucleotide- binding domain of Hsp72 in complex with ADP
IUCrJ 9(4), 1-13 () [10.1107/S2052252522006297]
The 70kDa heat-shock proteins (Hsp70s) are ATP-dependent molecular chaperones that contain an N-terminal nucleotide-binding domain (NBD) and a C-terminal substrate-binding domain. Hsp70s bind to misfolded/unfolded proteins and thereby prevent their aggregation. [...]
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2022-08-09
08:06
[IMPULSE-2022-00276] Journal Article
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Frustration model and spin excitations in the helimagnet FeP
The metallic compound FeP belongs to the class of materials that feature a complex noncollinear spin order driven by magnetic frustration. While its double-helix magnetic structure with a period λs≈5c, where c is the lattice constant, was previously well determined, the relevant spin-spin interactions that lead to that ground state remain unknown. [...]
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2022-08-08
09:26
DBCoverage [IMPULSE-2022-00273] Journal Article
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Transmission Bender as an Analyzer Device for MIEZE
MIEZE (Modulation of IntEnsity with Zero Effort) spectroscopy is a high-resolution spin echo technique optimized for the study of magnetic samples and samples under depolarizing conditions. It requires a polarization analyzer in between spin flippers and the sample position [...]
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