233 citations · 1.6k across the 22 of their papers we have counts for
22 papers
FeCrS in magnetic fields: possible evidence for a multiferroic ground state
J. Bertinshaw, C. Ulrich, A. Günther +11
We report on neutron diffraction, thermal expansion, magnetostriction, dielectric, and specific heat measurements on polycrystalline FeCr2S4 in external magnetic fields. The ferrim…
Absence of polar order in LuFe2O4
A. Ruff, S. Krohns, F. Schrettle +3
LuFe2O4 often is considered as a prototypical multiferroic with polar order arising from the electronic degrees of freedom only ("electronic ferroelectricity"). In the present work…
Wüstite: Electric, thermodynamic and optical properties of FeO
F. Schrettle, Ch. Kant, P. Lunkenheimer +3
We report on a systematic optical investigation of wüstite. In addition, the sample under consideration, Fe0.93O, has been characterized in detail by electrical transport, dielectr…
Dielectric signature of charge order in lanthanum nickelates
P. Sippel, S. Krohns, E. Thoms +7
Three charge-ordering lanthanum nickelates La2-xAxNiO4, substituted with specific amounts of A = Sr, Ca, and Ba to achieve commensurate charge order, are investigated using broadba…
Magnetic-field induced multiferroicity in a quantum critical frustrated spin liquid
F. Schrettle, S. Krohns, P. Lunkenheimer +4
Dielectric spectroscopy is used to check for the onset of polar order in the quasi one-dimensional quantum spin system Sul-Cu2Cl4 when passing from the spin-liquid state into the o…
Multiferroicity in an organic charge-transfer salt: Electric-dipole-driven magnetism
P. Lunkenheimer, J. Müller, S. Krohns +8
Multiferroics, showing simultaneous ordering of electrical and magnetic degrees of freedom, are remarkable materials as seen from both the academic and technological points of view…