102 citations · 298 across the 11 of their papers we have counts for
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Effect of Nd and Rh substitution on the spin dynamics of Kondo insulator CeFe2Al10
P. A. Alekseev, J. -M. Mignot, D. T. Adroja +7
The dynamic magnetic properties of the Kondo-insulator state in CeFe2Al10 (spin gap, resonance mode) have been investigated using polarized neutrons on a single crystal of pure CeF…
Screened moments in a Kondo insulator
Wesley T. Fuhrman, Juan R. Chamorro, Pavel A. Alekseev +5
Long known to have thermodynamic properties at odds with its insulating electrical transport, SmB6 has been the subject of great debate as it is unclear whether its unusual propert…
Europium mixed-valence, long-range magnetic order, and dynamic magnetic response in EuCu(SiGe)
Kirill S. Nemkovski, Denis P. Kozlenko, Pavel A. Alekseev +9
In mixed-valence or heavy-fermion systems, the hybridization between local orbitals and conduction band states can cause the suppression of long-range magnetic order, which com…
First evidence for a Sm-type contribution to the magnetic form factor in the quasielastic spectral response of intermediate valence SmB
P. A. Alekseev, J. -M. Mignot, P. S. Savchenkov +1
The momentum transfer dependence of the magnetic form factor associated with the quasielastic spectral component in the dynamic magnetic response of intermediate valence SmB…
Interaction Driven Subgap Spin Exciton in the Kondo Insulator SmB6
W. T. Fuhrman, J. Leiner, P. Nikolić +12
Using inelastic neutron scattering, we map a 14 meV coherent resonant mode in the topological Kondo insulator SmB6 and describe its relation to the low energy insulating band struc…
Dispersive magnetic resonance mode in the Kondo semiconductor CeFe2Al10
Jean-Michel Mignot, Pavel A. Alekseev, Julien Robert +7
The CeT2Al10 family of orthorhombic compounds exhibits a very peculiar evolution from a Kondo-insulator (T: Fe) to an unconventional long-range magnetic order (T: Ru, Os). Inelasti…
Magnetic spectral response and lattice properties in mixed-valence Sm1-x Yx S solid solutions studied with x-ray diffraction, x-ray absorption spectroscopy, and inelastic neutron scattering
P. A. Alekseev, J. -M. Mignot, E. V. Nefeodova +11
Mixed-valence phenomena occurring in the "black" (B) and "gold" (G) phases of Sm1-x Yx S have been studied by x-ray diffraction, x-ray absorption spectroscopy, and inelastic neutro…
Evidence for short-range antiferromagnetic fluctuations in Kondo-insulating YbB12
J. -M. Mignot, P. A. Alekseev, K. S. Nemkovski +3
The spin dynamics of mixed-valence YbB12 has been studied by inelastic neutron scattering on a high-quality single crystal. In the Kondo-insulating regime realized at low temperatu…
Yb-Yb correlations and crystal-field effects in the Kondo insulator YbB12 and its solid solutions
P. A. Alekseev, J. -M. Mignot, K. S. Nemkovski +9
We have studied the effect of Lu substitution on the spin dynamics of the Kondo insulator YbB12 to clarify the origin of the spin-gap response previously observed at low temperatur…
Collective magnetic excitations in mixed-valence Sm0.83Y0.17S
P. A. Alekseev, J. -M. Mignot, A. Ochiai +6
The magnetic spectral response of black-phase mixed-valence Sm0.83Y0.17S has been measured by inelastic neutron scattering on a single crystal. Two magnetic peaks are observed in t…