Systematic study in mixed valence system Yb4(As1−xSbx)3
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Cited by (31)
Low-energy excitations of the semimetallic one-dimensional S = 1/2 antiferromagnet Yb<inf>4</inf>As<inf>3</inf>
2001, Physica B: Condensed MatterCitation Excerpt :Although such models may not be literally true due to the three-dimensionality of the electronic states, they describe the important aspect that a strain coupling to the degenerate band states may easily lead to distortions of the cubic structure and simultaneous repopulation among the 4f states of Yb4As3. Thermal and transport measurements on P- and Sb-doped samples gave further experimental evidence for the scenario described here [7,12,30] (Fig. 6): With increasing concentration x of phosphorus, the electrical resistivity of Yb4(As1−xPx)3 grows drastically, and with x=0.3 it is nearly insulating, while the specific heat and the magnetic susceptibility are almost the same as those of pure Yb4As3. With increasing Sb content x, the absolute value of the resistivity of Yb4(As1−xSbx)3 decreases due to the increase of the number of charge carriers and the system becomes more metallic while again the specific-heat γ value is roughly the same as in the pure compound and thus almost independent of the carrier concentration.
NMR and NQR studies of Yb<inf>4</inf>(As<inf>1-x</inf>P<inf>x</inf>)<inf>3</inf> systems
2000, Physica B: Condensed MatterCharge fluctuation in Yb<inf>4</inf>(As<inf>1-x</inf>Sb<inf>x</inf>)<inf>3</inf>
1999, Physica B: Condensed MatterElectronic structure of low carrier ytterbium pnictides
1999, Physica B: Condensed MatterPhysical properties of Yb<inf>4</inf>As<inf>3</inf> and related compounds
1999, Physica B: Condensed Matter