<Superscript>170</Superscript>Yb Mössbauer spectroscopy, temperature dependent X-ray, magnetisation and specific heat data are presented in the hexagonal intermetallic YbAl<Subscript>3</Subscript>C<Subscript>3</Subscript>, in order to shed light on the isostructural transition occurring near 80 K and to investigate the electronic state of the Yb ion above and...</subscript></subscript></superscript>

Using refined preparation techniques, cadmium guest atoms have been positioned at different sites on the surfaces of nickel crystals. The magnetic hyperfine fields and the electric field gradients at the Cd nuclei were measured by time-dependent perturbed angular correlation (TDPAC) spectroscopy...

From Yb<Superscript>170</Superscript> Mössbauer measurements on YbNi<Subscript>5</Subscript>, we establish: the Yb<Superscript>3+</Superscript> ground state Kramers doublet is well isolated and has uniaxial anisotropy, the compound magnetically orders at 0.55 K, the Yb<Superscript>3+</Superscript> moments are aligned along the hexagonal axis, they have a saturated value of 3.9μ<Subscript>B</Subscript> and a thermal...</subscript></superscript></superscript></subscript></superscript>

We have examined the magnetic properties of the heavy electron compounds YbAgGe and YbPtIn by <Superscript>170</Superscript>Yb Mössbauer spectroscopy down to 0.1 K, and the crystal field properties of YbAgGe by Perturbed Angular Correlations (PAC) measurements up to 900 K. In YbAgGe, we show that each of the two...</superscript>

Emission and transmission Mössbauer studies of La<Subscript>0.8</Subscript>Sr<Subscript>0.2</Subscript>CoO<Subscript>3-δ< /Subscript> perovskites doped with ∼0.02 stoichiometric units of oxygen vacancy or 2.5% iron corroborate the occurrence of electronic phase separation in these systems. The effect of the small perturbation of the CoO<Subscript>3</Subscript> sublattice with either...</subscript></subscript></subscript></subscript>

We have synthesized LiMn<Subscript>6</Subscript>Sn<Subscript>6</Subscript>, the first RMn<Subscript>6</Subscript>Sn<Subscript>6</Subscript> compound involving an alkali metal as R element. It crystallizes in the hexagonal (P6/mmm) HfFe<Subscript>6</Subscript>Ge<Subscript>6</Subscript>-type structure. From magnetic measurements and powder neutron diffraction experiments it is found that LiMn<Subscript>6</Subscript>Sn<Subscript>6</Subscript> magnetically orders at T<Subscript>C</Subscript>=380 K in a...</subscript></subscript></subscript></subscript></subscript></subscript></subscript></subscript></subscript>

We report low temperature <Superscript>170</Superscript>Yb Mössbauer spectroscopy and magnetization measurements on two tetragonal non-superconducting quaternary borocarbides, YbNi<Subscript>2</Subscript>B<Subscript>2</Subscript>C and YbNiBC, and present L<Subscript>III</Subscript> edge X-ray absorption data in YbNiBC. Both compounds show evidence of 4f-conduction band hybridisation. In...</subscript></subscript></subscript></superscript>