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2022-07-23
11:29
OpenAccess [FZJ-2022-02700] Dissertation / PhD Thesis

On the Formation Mechanism of Amorphous Carbonates: Precursors in Nonclassical Crystallization and for Functional Metal Oxides
Erlangen 188 p. () = Dissertation, Erlangen, 2022
This work is dedicated to the highly discussed formation mechanism of amorphous calcium carbonate (ACC), its role in nonclassical crystallization, and amorphous carbonates as a precursor for functional metal oxides. Decrypting the formation mechanism of ACC provides a new environmentally benign synthesis pathway for complex hierarchically structured nanomaterials. [...]
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2022-02-23
11:30
OpenAccess [FZJ-2022-01323] Dissertation / PhD Thesis

Frustrated and Noncollinear Magnetismstudied by Neutron Scattering Techniques
105 pp. () = Dissertation, TU Dresden, 2021
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2022-02-23
11:30
OpenAccess [FZJ-2022-01293] Dissertation / PhD Thesis

Neutron spectroscopy on bond-frustrated helimagnets
147p. () = Dissertation, TU Dresden, 2021
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2022-01-17
22:10
[IMPULSE-2022-00042] Dissertation / PhD Thesis

Proximity effects in non-homogeneous structures with ferromagnetic and superconducting layers
153 pp. () = Dissertation, Joint Institute for Nuclear Research, 2021

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2022-01-17
15:19
[IMPULSE-2022-00040] Dissertation / PhD Thesis

The investigation of phonon lifetime and thermal transport mechanisms in complex and disordered crystalline systems by means of inelastic neutron and X-ray spectroscopy
100 pp. () = Dissertation, Universite Lyon, 2021
Interest in the engineering of thermal process mechanisms has grown significantly in recentyears, particularly for applications involving thermal functionalization of a material for use as a thermalbarrier, thermoelectric converter, thermal diode, etc., which requires the control of thermalconductivity. The thermal manipulation and design of a material in turn requires knowledge of thefundamental transport properties of the elementary heat carrier particle, the phonon.This is easier said than done, however, since models that would allow us to comprehend heat transportin complex materials are still under development, and because we lack systematic energy andtemperature dependencies of experimentally measured phonon dispersions and lifetimes on a widerange of materials. [...]

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2022-01-13
11:29
OpenAccess [FZJ-2022-00396] Dissertation / PhD Thesis

Magnetization distribution in superparamagnetic iron oxide nanoparticles
199 p. () = Dissertation, RWTH Aachen University, 2022
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2022-01-11
14:14
[IMPULSE-2022-00005] Dissertation / PhD Thesis

Mathematical Analysis of the Phase Problem for in situ Neutron Reflectometry using an Algorithmic Approach
148 p () = Dissertation, TU München, 2021
Polarized neutron reflectometry (PNR) is an ideal tool to study the depth resolved structural and magnetic properties of thin films. A unique determination of these parameters, however, is not possible due to the phase problem. [...]

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2022-01-11
13:43
[IMPULSE-2022-00004] Dissertation / PhD Thesis

Diffraction Based Investigation of Elastic and Plastic Deformation on Multiphase Alloys
152 p. () = Dissertation, Technische Universität München, 2021
In recent years the demand on new more versatile engineering components and new metalprinting techniques led to an increase in material development and testing. As researchprogresses on this field new methods in industrial manufacturing became available to setparameters like the texture or microstructure. [...]
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2021-12-08
10:51
[IMPULSE-2021-00329] Dissertation / PhD Thesis

Vortex matter of the intertype superconductor niobium studied by neutron imaging, neutron diffraction and molecular dynamics simulations
160p. () = Dissertation, Technische Universität München, 2021
The intermediate mixed state (IMS) in superconducting niobium is a prominent example of vortex matter beyond the type-I/type-II dichotomy. It features a non-monotonous vortex interaction, which results in the formation of vortex clusters and an emergent magnetic domain structure. [...]
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2021-08-02
08:07

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