Jan Peter Embs
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View article: Revealing a hidden magnetic order in the triangular lattice antiferromagnet CuNdO$_2$
Revealing a hidden magnetic order in the triangular lattice antiferromagnet CuNdO$_2$ Open
We investigate the magnetic ground state of CuNdO$_2$, which is a delafossite with a triangular lattice of magnetic Nd$^{3+}$ ions that are well separated by non-magnetic Cu spacer layers. From inelastic neutron scattering measurements of …
View article: Modulation of Protein Dynamics by Glycerol in Water-Soluble Chlorophyll-Binding Protein (WSCP)
Modulation of Protein Dynamics by Glycerol in Water-Soluble Chlorophyll-Binding Protein (WSCP) Open
Proteins are inherently dynamic entities that rely on flexibility across multiple timescales to perform their biological functions. The surrounding environment plays a critical role in modulating protein dynamics by exerting plasticizing o…
View article: Dominant Kitaev interaction and field-induced quantum phase transitions in triangular-lattice <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>KCeSe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>
Dominant Kitaev interaction and field-induced quantum phase transitions in triangular-lattice Open
Realizing Kitaev interactions on triangular lattices offers a compelling platform for exploring quantum spin liquid physics beyond the conventional honeycomb-lattice framework. Here, we investigate the triangular-lattice antiferromagnet KC…
View article: High Ionic Conduction in Rb‐ and Cs‐Mixed Cation Amide for Energy Storage
High Ionic Conduction in Rb‐ and Cs‐Mixed Cation Amide for Energy Storage Open
Ionic conductivity is one of the key parameters in designing advanced solid‐state batteries and energy storage materials. This study presents the first observation of high ionic conductivity in the newly developed mixed cation amide solid …
View article: La-Ni-H metal hydride system aging effects identification
La-Ni-H metal hydride system aging effects identification Open
One of the most commonly used materials for sorption compression in space applications is based on the La-Ni-H system. The degradation of the material properties and, therefore, the system lifetime is of great importance for the final succ…
View article: Signatures of the quantum spin liquid state in triangular-based zig-zag polyaromatic hydrocarbon radicals
Signatures of the quantum spin liquid state in triangular-based zig-zag polyaromatic hydrocarbon radicals Open
The study reports the discovery of Cs(chrysene˙ − )(THF) 0.5 ·(THF) 0.25 , a pure-phase spin-½ organic magnet featuring triangular-based zigzag magnetic layers and exhibiting a quantum spin liquid state with gapless spin excitations.
View article: Entropy-stabilized materials as a platform to explore terbium-based pyrochlore frustrated magnets
Entropy-stabilized materials as a platform to explore terbium-based pyrochlore frustrated magnets Open
Two decades of work have shown that the physics of Tb-based pyrochlores is controlled by a subtle equilibrium between quadrupole-quadrupole and dipolar-dipolar magnetic interactions, as exemplified by the ordered spin ice Tb2Sn2O7 and the …
View article: Impact of sulfur addition on the structure and dynamics of Ni–Nb alloy melts
Impact of sulfur addition on the structure and dynamics of Ni–Nb alloy melts Open
We investigated the change in the structure and dynamics of a Ni–Nb bulk metallic glass upon sulfur addition on both microscopic and macroscopic scales. With the sulfur concentration of 3 at. %, where the composition Ni58Nb39S3 exhibits th…
View article: Possible gapless quantum spin liquid behavior in the triangular-lattice Ising antiferromagnet PrMgAl$_{11}$O$_{19}$
Possible gapless quantum spin liquid behavior in the triangular-lattice Ising antiferromagnet PrMgAl$_{11}$O$_{19}$ Open
Quantum spin liquids (QSLs) represent a novel state where spins are highly entangled but do not order even at zero temperature due to strong quantum fluctuations. Such a state is mostly studied in Heisenberg models defined on geometrically…
View article: Atomic diffusion in liquid gallium and gallium-nickel alloys probed by quasielastic neutron scattering and molecular dynamic simulations
Atomic diffusion in liquid gallium and gallium-nickel alloys probed by quasielastic neutron scattering and molecular dynamic simulations Open
Data Set for the Publication entitled: Atomic diffusion in liquid gallium and gallium-nickel alloys probed by quasielastic neutron scattering and molecular dynamic simulations by A. Shahzad, F. Yang, J. Steffen, C. Neiss, A. Panchenko, K. …
View article: Atomic diffusion in liquid gallium and gallium-nickel alloys probed by quasielastic neutron scattering and molecular dynamic simulations
Atomic diffusion in liquid gallium and gallium-nickel alloys probed by quasielastic neutron scattering and molecular dynamic simulations Open
Data Set for the Publication entitled: Atomic diffusion in liquid gallium and gallium-nickel alloys probed by quasielastic neutron scattering and molecular dynamic simulations by A. Shahzad, F. Yang, J. Steffen, C. Neiss, A. Panchenko, K. …
View article: Atomic diffusion in liquid gallium and gallium-nickel alloys probed by quasielastic neutron scattering and molecular dynamic simulations
Atomic diffusion in liquid gallium and gallium-nickel alloys probed by quasielastic neutron scattering and molecular dynamic simulations Open
The atomic mobility in liquid pure gallium and a gallium-nickel alloy with 2 at% of nickel is studied experimentally by incoherent quasielastic neutron scattering. The integral diffusion coefficients for all-atom diffusion are derived from…
View article: Directly observing atomic-scale relaxations of a glass forming liquid using femtosecond X-ray photon correlation spectroscopy
Directly observing atomic-scale relaxations of a glass forming liquid using femtosecond X-ray photon correlation spectroscopy Open
Glass forming liquids exhibit structural relaxation behaviors, reflecting underlying atomic rearrangements on a wide range of timescales. These behaviors play a crucial role in determining many material properties. However, the relaxation …
View article: CCDC 2246512: Experimental Crystal Structure Determination
CCDC 2246512: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Different Dynamic Behavior of Methyl Groups in Crystalline Carbimazole as Revealed by a Multitechnique Experimental and Theoretical Approach
Different Dynamic Behavior of Methyl Groups in Crystalline Carbimazole as Revealed by a Multitechnique Experimental and Theoretical Approach Open
Dynamic properties of carbimazole (a drug used in hyperthyroidism treatment) were thoroughly investigated by combining solid-state nuclear magnetic resonance spectroscopy and quasielastic neutron scattering with periodic density functional…
View article: The ortho-para transition, confinement and self-diffusion of H<sub>2</sub> in three distinct carbide-derived carbons by quasi- and inelastic neutron scattering
The ortho-para transition, confinement and self-diffusion of H<sub>2</sub> in three distinct carbide-derived carbons by quasi- and inelastic neutron scattering Open
Microporous carbon materials are promising for hydrogen storage due to their structural variety, high specific surface area, large pore volume and relatively low cost. Carbide-derived carbons are highly valued as model materials because th…
View article: Coupled frustrated ferromagnetic and antiferromagnetic quantum spin chains in the quasi-one-dimensional mineral antlerite, Cu$_3$SO$_4$(OH)$_4$
Coupled frustrated ferromagnetic and antiferromagnetic quantum spin chains in the quasi-one-dimensional mineral antlerite, Cu$_3$SO$_4$(OH)$_4$ Open
Magnetic frustration, the competition among exchange interactions, often leads to novel magnetic ground states with unique physical properties which can hinge on details of interactions that are otherwise difficult to observe. Such states …
View article: Ionic liquid dynamics in nanoporous carbon: A pore-size- and temperature-dependent neutron spectroscopy study on supercapacitor materials
Ionic liquid dynamics in nanoporous carbon: A pore-size- and temperature-dependent neutron spectroscopy study on supercapacitor materials Open
The influence of spatial confinement on the thermally excited stochastic cation dynamics of the room-temperature ionic liquid 1-N-butylpyridinium bis-((trifluoromethyl)sulfonyl)imide ([BuPy][Tf₂N]) inside porous carbide-derived carbons wit…
View article: Spin-orbit-coupled triangular-lattice spin liquid in rare-earth chalcogenides
Spin-orbit-coupled triangular-lattice spin liquid in rare-earth chalcogenides Open
Spin-orbit coupling is an important ingredient in many spin liquid candidate materials, especially among the rare-earth magnets and Kitaev materials. We explore the rare-earth chalcogenides NaYbS$_2$ where the Yb$^{3+}$ ions form a perfect…
View article: Transport Mechanism of Acetamide in Deep Eutectic Solvents
Transport Mechanism of Acetamide in Deep Eutectic Solvents Open
Over the last couple of decades, deep eutectic solvents (DESs) have emerged as novel alternatives to ionic liquids that are extensively used in the synthesis of innovative materials, metal processing, catalysis, etc. However, their usage i…
View article: Exploring molecular reorientations in amorphous and recrystallized felodipine at the microscopic level
Exploring molecular reorientations in amorphous and recrystallized felodipine at the microscopic level Open
Molecular reorientations were studied in amorphous, partially and fully recrystallized felodipine using a set of experimental methods: high-resolution solid-state nuclear magnetic resonance (NMR), relaxometry NMR and quasielastic neutron s…
View article: A manganese hydride molecular sieve for practical hydrogen storage under ambient conditions
A manganese hydride molecular sieve for practical hydrogen storage under ambient conditions Open
An amorphous manganese hydride molecular sieve that reversibly absorbs 10.5 wt% and 197 kgH2m−3hydrogen at room temperature using the Kubas interaction.
View article: Confinement Effects for Lithium Borohydride: Comparing Silica and Carbon Scaffolds
Confinement Effects for Lithium Borohydride: Comparing Silica and Carbon Scaffolds Open
LiBH4 is a promising material for hydrogen storage and as a solid-state electrolyte for Li ion batteries. Confining LiBH4 in porous scaffolds improves its hydrogen desorption kinetics, reversibility, and Li+ conductivity, but little is kno…