W. Schnelle

Publication List Details

Period

1993 - 2099

Number

347

Co-Authors

Electronic structure and magnetic properties of the spin-1/2 Heisenberg system CuSe2O5 (2009)

Janson, O., Schnelle, W., Schmidt, M., Prots, Yu., Filatov, S. K., ...

A microscopic magnetic model for the spin-1/2 Heisenberg chain compound CuSe2O5 is developed based on the results of a joint experimental and theoretical study. Magnetic susceptibility and specific...

AgCuVO4: a quasi one-dimensional S = 1/2 chain compound (2009)

Möller, A., Schmitt, M., Schnelle, W., Förster, T., Rosner, H.

We present a joint experimental and computational study of the recently synthesized spin 1/2 system silver-copper-orthovanadate AgCuVO4 [A. M\"oller and J. Jainski, Z. Anorg. Allg. Chem. 634, 1669...

Electronic structure of SrPt_4Ge_{12}: a combined photoelectron spectroscopy and band structure study (2009)

Rosner, H., Gegner, J., Regesch, D., Schnelle, W., Gumeniuk, R., Leithe-Jasper, A., ...

We present a combined study of the electronic structure of the superconducting skutterudite derivative SrPt4Ge12 by means of X-ray photoelectron spectroscopy and full potential band structure...

Crystal water induced switching of magnetically active orbitals in CuCl2 (2009)

Schmitt, M., Janson, O., Schmidt, M., Hoffmann, S., Schnelle, W., ...

The dehydration of CuCl2*2(H2O) to CuCl2 leads to a dramatic change in magnetic behavior and ground state. Combining density functional electronic structure and model calculations with...

Superconductivity induced by ruthenium substitution in an iron arsenide: investigation of SrFe2-xRuxAs2 (0 (2009)

Schnelle, W., Leithe-Jasper, A., Gumeniuk, R., Burkhardt, U., Kasinathan, D., Rosner, H.

The magnetism in SrFe2As2 can be suppressed by electron doping through a small substitution of Fe by Co or Ni, giving way to superconductivity. We demonstrate that a massive substitution of Fe by...

Superconductivity and Field-Induced Magnetism in SrFe_1.75Co_0.25As_2 (2009)

Khasanov, R., Maisuradze, A., Maeter, H., Kwadrin, A., Luetkens, H., Amato, A., ...

Using muon-spin rotation, we studied the in-plane (\lambda_ab) and the out of plane (\lambda_c) magnetic field penetration depth in SrFe_1.75Co_0.25As_2 (T_c=13.3 K). Both \lambda_ab(T) and...

Superfluid Density and Energy Gap-Function of Superconducting PrPt4Ge12 (2009)

Maisuradze, A., Nicklas, M., Gumeniuk, R., Baines, C., Schnelle, W., Rosner, H., ...

The filled skutterudite superconductor PrPt4Ge12 was studied in muon-spin rotation (muSR), specific heat, and electrical resistivity experiments. The continuous increase of the superfluid density...

Photoemission study of electronic structure of the half-metallic ferromagnet Co₃Sn₂S₂ (2009)

Holder, M., Dedkov, Yu. S., Kade, A., Rosner, H., Schnelle, W., Leithe-Jasper, A., ...

Surface electronic structure of polycrystalline and single-crystalline samples of the half-metallic ferromagnet Co₃Sn₂S₂ was studied by means of angle-resolved and core-level photoemissions....

Superconductivity in SrFe_(2-x)Co_xAs_2: Internal Doping of the Iron Arsenide Layers (2008)

Leithe-Jasper, A., Schnelle, W., Geibel, C., Rosner, H.

In the electron doped compounds SrFe_(2-x)Co_xAs_2 superconductivity with T_c up to 20 K is observed for 0.2 < x < 0.4. Results of structure determination, magnetic susceptibility, electrical...

The Metallic Zintl Phase Ba3Si4 - Synthesis, Crystal Structure, Chemical Bonding, and Physical Properties (2008)

Aydemir, U., Ormeci, A., Borrmann, H., Böhme, B., Zürcher, F., Uslu, B., ...

The Zintl phase Ba3Si4 has been synthesized from the elements at 1273 K as a single phase. No homogeneity range has been found. The compound decomposes peritectically at 1307(5) K to BaSi2 and melt....

Superconductivity in the New Platinum Germanides MPt4Ge12 (M = Rare-earth and Alkaline-earth Metals) with Filled Skutterudite Structure (2007)

Gumeniuk, R., Schnelle, W., Rosner, H., Nicklas, M., Leithe-Jasper, A., Grin, Yu.

New germanium-platinum compounds with the filled-skutterudite crystal structure were synthesized. The structure and composition were investigated by X-ray diffraction and microprobe analysis....

and related frustrated chain cuprates (2007)

J. Phys, Condens Matter, S-l Drechsler, R Klingeler, O Volkova, A Vasiliev, ...

A novel subclass of frustrated undoped edge-shared CuO2 chain materials with intriguing magnetism is briefly reviewed. These cuprates show at low temperature a tendency to helicoidal magnetic...

High spin polarization in the ferromagnetic filled skutterudites KFe4Sb12 and NaFe4Sb12 (2005)

Sheet, Goutam, Rosner, H., Wirth, S., Leithe-Jasper, A., Schnelle, W., Burkhardt, U., ...

The spin polarization of ferromagnetic alkali-metal iron antimonides KFe4Sb12 and NaFe4Sb12 is studied by point-contact Andreev reflection using superconducting Nb and Pb tips. From these...

Pulse plasma synthesis and chemical bonding in magnesium diboride (2003)

Schmidt, J., Schnelle, W., Grin, Y., Kniep, R.

A new way of preparation of magnesium diboride by pulse plasma technique is described which results in microcrystalline powder material. The superconducting transition with an onset at 37.3 K was...

Li4Sr2[Cr2N6]: Ein Hexanitridodichromat (V) (2002)

Hochrein,O., Kohout,M., Schnelle,W., Kniep,R.

The quaternary hexanitridodichromate(V) Li(4)sr(2)[Cr2N6] was obtained by reaction of the metals with flowing nitrogen at 900 degreesC as black-shining crystals with a platy habit. The crystal...

Critical review of small sample calorimetry: improvement by auto-adaptive thermal shield control (2002)

Schnelle,W., Gmelin,E.

The paper reviews measuring and data computation procedures in heat-step calorimetry, for small samples (

On the Binary Compound YbGa5 (2002)

Giedigkeit,R., Niewa,R., Schnelle,W., Grin,Y., Kniep,R.

YbGa5 was characterized in course of a re-investigation of the Yb-Ga system in the range between 0 and 20 at. % Yb. The compound can be described as a defect variant of the Ce2Ga10Ni structure type...

New Ternary Alkaline Earth Metal Cerium (IV) Nitrides: CaCeN2 and SrCeN2 (2002)

Prots',Y., Niewa,R., Schnelle,W., Kniep,R.

CaCeN2 and SrCeN2 were prepared by reactions of Li2CeN2 with Ca3N2 or Sr2N in a nitrogen atmosphere at 1020 K. According to measurements of the magnetic susceptibilities both compounds contain Ce-IV....

Large Orbital Moments and Internal Magnetic Fields in Lithium Nitridoferrate(I) (2002)

Klatyk,J., Schnelle,W., Wagner,F. R., Niewa,R., Novak,P., Kniep,R., ...

The iron nitridometalates Li-2[ (Li1-x Fe (I)(x))N] display ferromagnetic ordering and spin freezing. Large magnetic moments up to 5.0mu(B)/Fe are found in the magnetization. In Mossbauer effect...

Synthesis and Crystal Structure of {(NH4)xCo(3-x/2)}(H2O)2[BP2O8] center dot (1-x)H2O (x approximate to 0.5) (2002)

Schäfer,G., Carrillo-Cabrera,W., Schnelle,W., Borrmann,H., Kniep,R.

A borophosphate hydrate with general composition {(NH4)(x)Co((3-x)/2)}(H2O)(2)[BP2O8].(1-x) H2O (xapproximate to0.5) was prepared under mild hydrothermal conditions (T=170degreesC). The crystal...

Homoatomic Clustering in the intermediate Valence Compounds Yb1-yAl3-xSix and Yb1-yAl3-xGex (2002)

Zhao,J. T., Schnelle,W., Grin,Y.

Two new phases, Yb1-xAl3-xSix and Yb1-yAl3-xGex, were found by systematic investigations of the according ternary systems. The crystal structures of Yb1-yAl2.8Si0.2 and Yb1-yAl2.8Ge0.2 (defect...

Critical review of small sample calorimetry: improvement by auto-adaptive thermal shield control (2002)

Schnelle, W., Gmelin, E.

The paper reviews measuring and data computation procedures in heat-step calorimetry, for small samples (

On the Binary Compound YbGa5 (2002)

Giedigkeit, R., Niewa, R., Schnelle, W., Grin, Y., Kniep, R.

YbGa5 was characterized in course of a re-investigation of the Yb-Ga system in the range between 0 and 20 at. % Yb. The compound can be described as a defect variant of the Ce2Ga10Ni structure type...

Li4Sr2[Cr2N6]: Ein Hexanitridodichromat (V) (2002)

Hochrein, O., Kohout, M., Schnelle, W., Kniep, R.

The quaternary hexanitridodichromate(V) Li(4)sr(2)[Cr2N6] was obtained by reaction of the metals with flowing nitrogen at 900 degreesC as black-shining crystals with a platy habit. The crystal...

Large Orbital Moments and Internal Magnetic Fields in Lithium Nitridoferrate(I) (2002)

Klatyk, J., Schnelle, W., Wagner, F. R., Niewa, R., Novak, P., Kniep, R., ...

The iron nitridometalates Li-2[ (Li1-x Fe (I)(x))N] display ferromagnetic ordering and spin freezing. Large magnetic moments up to 5.0mu(B)/Fe are found in the magnetization. In Mossbauer effect...

New Ternary Alkaline Earth Metal Cerium (IV) Nitrides: CaCeN2 and SrCeN2 (2002)

Prots', Y., Niewa, R., Schnelle, W., Kniep, R.

CaCeN2 and SrCeN2 were prepared by reactions of Li2CeN2 with Ca3N2 or Sr2N in a nitrogen atmosphere at 1020 K. According to measurements of the magnetic susceptibilities both compounds contain Ce-IV....

Synthesis and Crystal Structure of {(NH4)xCo(3-x/2)}(H2O)2[BP2O8] center dot (1-x)H2O (x approximate to 0.5) (2002)

Schäfer, G., Carrillo-Cabrera, W., Schnelle, W., Borrmann, H., Kniep, R.

A borophosphate hydrate with general composition {(NH4)(x)Co((3-x)/2)}(H2O)(2)[BP2O8].(1-x) H2O (xapproximate to0.5) was prepared under mild hydrothermal conditions (T=170degreesC). The crystal...

Critical review of small sample calorimetry: improvement by auto-adaptive thermal shield control (2002)

Schnelle, W., Gmelin, E.

The paper reviews measuring and data computation procedures in heat-step calorimetry, for small samples (

Homoatomic Clustering in the intermediate Valence Compounds Yb1-yAl3-xSix and Yb1-yAl3-xGex (2002)

Zhao, J. T., Schnelle, W., Grin, Y.

Two new phases, Yb1-xAl3-xSix and Yb1-yAl3-xGex, were found by systematic investigations of the according ternary systems. The crystal structures of Yb1-yAl2.8Si0.2 and Yb1-yAl2.8Ge0.2 (defect...