115 citations · 366 across the 11 of their papers we have counts for
11 papers
Crystal Structure and Phonon Density of States of FeSi up to 120 GPa
Ravhi S Kumar, Han Liu, Quan Li +9
The strongly correlated material FeSi exhibits several unusual thermal, magnetic, and structural properties under varying pressure-temperature (P-T) conditions. It is a potential t…
Influence of hydrogenation on the vibrational density of states of magnetocaloric
Alexandra Terwey, Markus E. Gruner, Werner Keune +14
We report on the impact of magnetoelastic coupling on the magnetocaloric properties of LaFeSiH in terms of the vibrational density of states, which we dete…
Interface-related magnetic and vibrational properties in Fe/MgO heterostructures from nuclear resonant spectroscopy and first-principles calculations
Benedikt Eggert, Markus E. Gruner, Katharina Ollefs +11
We combine Fe Mössbauer spectroscopy and Fe nuclear resonant inelastic x-ray scattering (NRIXS) in nanoscale polycrystalline [bcc-Fe/MgO] multilayers with vari…
Bandwidth controlled insulator-metal transition in BaFeS: A Mössbauer study under pressure
Philipp Materne, Wenli Bi, Jiyong Zhao +6
BaFeS is a quasi one-dimensional Mott insulator that orders antiferromagnetically below 117(5)\,K. The application of pressure induces a transition to a metallic state, and…
Size-dependent lattice dynamics of atomically precise cadmium selenide quantum dots
Chenyang Shi, Alexander N. Beecher, Yan Li +5
Material properties depend sensitively on the atomic arrangements and atomic bonding, but these are notoriously difficult to measure in nanosized atomic clusters due to the small s…
Microscopic phase diagram of LaFeAsO single crystals under pressure
Philipp Materne, Wenli Bi, Jiyong Zhao +6
We investigated LaFeAsO single crystals by means of synchrotron Mössbauer spectroscopy under pressures up to 7.5 GPa and down to 13 K and provide a microscopic phase diagram. We fo…
Suppression of the magnetic order in CeFeAsO: non-equivalence of hydrostatic and chemical pressure
Philipp Materne, Wenli Bi, Esen Ercan Alp +12
We present a detailed investigation of the electronic properties of CeFeAsO under chemical (As by P substitution) and hydrostatic pressure by means of in-house and synchrotron Möss…
Moment-volume coupling in La(FeSi)
M. E. Gruner, W. Keune, J. Landers +8
We investigate the origin of the volume change and magnetoelastic interaction observed at the magnetic first-order transition in the magnetocaloric system La(FeSi)$_{13…
Impact of lattice dynamics on the phase stability of metamagnetic FeRh: Bulk and thin films
Michael Wolloch, Markus E. Gruner, Werner Keune +20
We present phonon dispersions, element-resolved vibrational density of states (VDOS) and corresponding thermodynamic properties obtained by a combination of density functional theo…
Phonon anharmonicity and negative thermal expansion in SnSe
Dipanshu Bansal, Jiawang Hong, Chen W. Li +5
The anharmonic phonon properties of SnSe in the Pnma phase were investigated with a combination of experiments and first-principles simulations. Using inelastic neutron scattering…
Measuring velocity of sound with nuclear resonant inelastic x-ray scattering
Michael Y. Hu, Wolfgang Sturhahn, Thomas S. Toellner +4
Nuclear resonant inelastic x-ray scattering is used to measure the projected partial phonon density of states of materials. A relationship is derived between the low-energy part of…