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cond-mat.supr-con2009★ 55 cited

Nernst effect in single crystals of the pnictide superconductor CaFe1.92Co0.08As2 and parent compound CaFe2As2

M. Matusiak, Z. Bukowski, J. Karpinski

We report a combined study of the Nernst coefficient (v), Hall effect and thermoelectric power of CaFe2As2 and CaFe1.92Co0.08As2 single crystals. The absolute value of v in both sa…

cond-mat.str-el2009★ 25 cited

Evidence for a charge Kondo effect in Pb(1-x)Tl(x)Te from measurements of thermoelectric power

M. Matusiak, E. M. Tunnicliffe, J. R. Cooper +2

We report measurements of the thermoelectric power (TEP) for a series of Pb(1-x)Tl(x)Te crystals with x = 0.0 to 1.3%. Although the TEP is very large for x = 0.0, using a single ba…

cond-mat.supr-con2009★ 34 cited

Magnetic and Superconducting Properties of FeAs-based High-Tc Superconductors with Gd

E. P. Khlybov, O. E. Omelyanovsky, A. Zaleski +5

We report on successful synthesis under high pressure of a series of polycrystalline GdFeAs O_{1-x}F_x high-Tc superconductors with different oxygen deficiency x=0.12 - 0.16 and al…

cond-mat.mtrl-sci2009★ 4 cited

The limits of the total crystal-field splittings

Jacek Mulak, Maciej Mulak

The crystal-fields causing electron states splittings of the same second moment can produce different total splittings magnitudes. Based on the numerical data on…

cond-mat.str-el2009★ 122 cited

Kondo-Cluster-Glass State near a Ferromagnetic Quantum Phase Transition

T. Westerkamp, M. Deppe, R. Kuechler +5

We report on a comprehensive study of CePdRh poly- and single crystals close to the ferromagnetic instability by means of low-temperature ac su…

cond-mat.supr-con2009★ 39 cited

Muon-spin rotation measurements of the penetration depth of the Mo_3Sb_7 superconductor

R. Khasanov, P. W. Klamut, A. Shengelaya +4

Measurements of the magnetic field penetration depth λin superconductor Mo_3Sb_7 (T_c~2.1 K) were carried out by means of muon-spin-rotation. The absolute values of λ, the Ginzburg…

cond-mat.supr-con2009★ 3 cited

The characteristics of the superconducting and magnetic phases in the polycrystalline samples of ruthenocuprates of nominal compositions RuSr2GdCu2O8, Ru0.98Sr2GdCu2O8 and Ru0.5Sr2GdCu2.5O8-d

Piotr W. Klamut, Tomasz Plackowski, Marcin Matusiak

The temperature dependencies of the resistivity for the superconducting ruthenocuprates of nominal compositions RuSr2GdCu2O8, Ru0.98Sr2GdCu2O8 and Ru0.5Sr2GdCu2.5O8-d were examined…

cond-mat.mtrl-sci2009★ 2 cited

The total energy splitting of ionic eigenstates in the axial crystal fields

Jacek Mulak, Maciej Mulak

The relationship between the energy total splitting of the free-ion electron states in the axial crystal-fields and the second moment of that splitting is thoroughly i…

cond-mat.supr-con2009★ 130 cited

Single crystals of LnFeAsO1-xFx (Ln=La, Pr, Nd, Sm, Gd) and Ba1-xRbxFe2As2: growth, structure and superconducting properties

J. Karpinski, N. D. Zhigadlo, S. Katrych +12

A review of our investigations on single crystals of LnFeAsO1-xFx (Ln=La, Pr, Nd, Sm, Gd) and Ba1-xRbxFe2As2 is presented. A high pressure technique has been applied for the growth…

cond-mat.str-el2009

Neel Order and Electron Spectral Functions in the Two-Dimensional Hubbard Model: a Spin-Charge Rotating Frame Approach

T. A. Zaleski, T. K. Kopec

Using recently developed quantum SU(2)xU(1) rotor approach, that provides a self-consistent treatment of the antiferromagnetic state we have performed electronic spectral function…

cond-mat.supr-con2009★ 6 cited

Superconducting and magnetic properties of a new EuAsFeO0.85F0.15 superconductor

V. M. Dmitriev, I. E. Kostyleva, E. P. Khlybov +5

Polycrystalline samples of a new superconducting EuAsFeO0.85F0.15 compound with critical temperature Tc=11K were prepared by solid state synthesis. Its electric and magnetic proper…

cond-mat.supr-con2009★ 25 cited

Evidence of spin-density-wave order in RFeAsO from measurements of thermoelectric power

M. Matusiak, T. Plackowski, Z. Bukowski +2

Data on the magneto-thermopower and specific heat of three compounds belonging to '1111' oxypnictides family are reported. One specimen (SmAsFeO0.8F0.2) is a superconductor with Tc…