Publications (14)
Unusual magnetic order in EuHg
Rachel Nixon, Nazar Zaremba, Samuel A. Adegboyega +11
In solid-state compounds, the valence of europium can sometimes be mixed -- which is especially favored in structures with several positions for the europium atoms. In this work, w…
Vibrational and structural properties of the FeSb (Na, K, Ca, Sr, Ba) filled skutterudites
Juliana G. de Abrantes, Marli R. Cantarino, Wagner R. da Silva Neto +7
Vibrational and elastic properties of the FeSb skutterudites are investigated by, respectively, temperature dependent extended X-ray absorption fine structure…
Ternary borides NbFeB and TaFeB with Kagome-type iron framework
Qiang Zheng, Roman Gumeniuk, Horst Borrmann +7
Two new ternary borides FeB ( = Nb, Ta) were synthesized by high-temperature thermal treatment of samples obtained by arc-melting. This new type of structure wi…
The single- vs. two-gap scenario: the specific heat and the thermodynamic critical field of BeAu superconductor
Rustem Khasanov, Ritu Gupta, Debarchan Das +2
The puzzling situation where some thermodynamic quantities require a single-gap description, while others need a more complex gap scenario, is discussed. Our approach reveals that…
Multiple-gap response of type-I noncentrosymmetric BeAu superconductor
Rustem Khasanov, Ritu Gupta, Debarchan Das +3
Precise measurements of the thermodynamic critical field () in type-I noncentrosymmetric superconductor BeAu were performed by means of the muon-spin rotation/relaxation…
Coexistence of magnetic order and valence fluctuations in the Kondo lattice system CeRhSn
Monika Barbara Gamża, Roman Gumeniuk, Ulrich Burkhardt +4
We report on the electronic band structure, structural, magnetic and thermal properties of CeRhSn. Ce -edge XAS spectra give direct evidence for an in…
Dual nature of 5 electrons in the isostructural UMSi family: from antiferro- to Pauli paramagnetism via hidden order
Andrea Amorese, Martin Sundermann, Brett Leedahl +16
Using inelastic x-ray scattering beyond the dipole limit and hard x-ray photoelectron spectroscopy we establish the dual nature of the U electrons in UMSi (M = Pd, Ni,…
Crystal structure, Chemical Bonding, Electrical and Thermal Transport in Sc5Rh6Sn18
Manuel Feig, Lev Akselrud, Walter Schnelle +6
Single crystals of Sc5Rh6Sn18 were grown from Sn-flux. The crystal structure (SG: I41/acd, a = 13.5529(2) Ã , c = 27.0976(7) Ã ) was studied by high-resolution X-ray diffraction on…
AFe2As2 (A = Ca, Sr, Ba, Eu) and SrFe_(2-x)TM_(x)As2 (TM = Mn, Co, Ni): crystal structure, charge doping, magnetism and superconductivity
Deepa Kasinathan, Alim Ormeci, Katrin Koch +4
The electronic structure and physical properties of the pnictide compound families OFeAs ( = La, Ce, Pr, Nd, Sm), FeAs ( = Ca, Sr, Ba, Eu), LiFeAs and FeS…
Quantifying the U covalence and degree of localization in U intermetallics
Andrea Marino, Denise S. Christovam, Daisuke Takegami +17
A procedure for quantifying the U electrons' covalence and degree of localization in U intermetallic compounds is presented. To this end, bulk sensitive hard and soft x-ray ph…
Complex magnetic phase diagram of metamagnetic MnPtSi
Monika B. Gamża, Walter Schnelle, Helge Rosner +3
The magnetic, thermal and transport properties as well as electronic band structure of MnPtSi are reported. MnPtSi is a metal that undergoes a ferromagnetic transition at $T_{\math…
muSR and Magnetometry Study of the Type-I Superconductor BeAu
James Beare, Matthew Nugent, Murray Wilson +11
We present muon spin rotation and relaxation (muSR) measurements as well as demagnetising field corrected magnetisation measurements on polycrystalline samples of the noncentrosymm…
Symmetry preserving lattice collapse in tetragonal SrFe_(2-x)Ru_xAs_2 (x = 0, 0.2) -- a combined experimental and theoretical study
Deepa Kasinathan, Miriam Schmitt, Klaus Koepernik +8
In a joint experimental and theoretical study, we investigate the isostructural collapse from the ambient pressure tetragonal phase to a collapsed tetragonal phase for non-supercon…
Superconducting gap structure of the skutterudite LaPt4Ge12 probed by specific heat and thermal transport
Heike Pfau, Michael Nicklas, Ulrike Stockert +5
We investigated the superconducting order parameter of the filled skutterudite LaPt4Ge12, with a transition temperature of Tc = 8.3 K. To this end, we performed temperature and mag…