Publications (12)
CeRuSn: a strongly correlated material with nontrivial topology
M. Sundermann, F. Strigari, T. Willers +14
Topological insulators form a novel state of matter that provides new opportunities to create unique quantum phenomena. While the materials used so far are based on semiconductors,…
Asymmetric orbital-lattice interactions in ultra-thin correlated oxide films
J. Chakhalian, J. M. Rondinelli, Jian Liu +14
Using resonant X-ray spectroscopies combined with density functional calculations, we find an asymmetric bi-axial strain-induced -orbital response in ultra-thin films of the cor…
Correlation between the phase diagram and the crystal-field wave functions of CeRh(1-x)Ir(x)In5
T. Willers, F. Strigari, Z. Hu +9
The 4f crystal-electric field ground state wave functions of CeRh(1-x)Ir(x)In5 have been determined by linear polarization dependent soft x-ray absorption spectroscopy (XAS) at T =…
Intermediate valence in single crystalline YbSiAl
W. J. Gannon, K. Chen, M. Sundermann +8
YbSiAl may be a prototype for exploring different aspects of the Shastry-Sutherland lattice, formed by planes of orthogonally coupled Yb ions. Measurements of the magnetic…
Determining the in-plane orientation of the ground-state orbital of CeCu2Si2
T. Willers, F. Strigari, N. Hiraoka +9
We have successfully determined the hitherto unknown sign of the B44 Stevens crystal-field parameter of the tetragonal heavy-fermion compound CeCu2Si2 using vector q dependent non-…
Quantitative study of valence and configuration interaction parameters of the Kondo semiconductors CeM2Al10 (M = Ru, Os and Fe) by means of bulk-sensitive hard x-ray photoelectron spectroscopy
F. Strigari, M. Sundermann, Y. Muro +9
The occupancy of the 4f^n contributions in the Kondo semiconductors CeM2Al10(M = Ru, Os and Fe) has been quantitatively determined by means of bulk-sensitive hard x-ray photoelectr…