Search Results - "WURMEHL, S"

Direct observation of spin–orbit coupling in iron-based superconductors by Borisenko, S. V., Evtushinsky, D. V., Liu, Z.-H., Morozov, I., Kappenberger, R., Wurmehl, S., Büchner, B., Yaresko, A. N., Kim, T. K., Hoesch, M., Wolf, T., Zhigadlo, N. D.

“…A systematic spectroscopic analysis of the principal members of the iron pnictide family of superconductors reveals a substantial spin–orbit splitting…”
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Unraveling the Nature of Magnetism of the 5d4 Double Perovskite Ba2YIrO6 by Fuchs, S, Dey, T, Aslan-Cansever, G, Maljuk, A, Wurmehl, S, Büchner, B, Kataev, V

“…We report electron spin resonance (ESR) spectroscopy results on the double perovskite Ba2YIrO6. On general grounds, this material is expected to be nonmagnetic…”
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Inelastic neutron-scattering measurements of incommensurate magnetic excitations on superconducting LiFeAs single crystals by Qureshi, N, Steffens, P, Drees, Y, Komarek, A C, Lamago, D, Sidis, Y, Harnagea, L, Grafe, H-J, Wurmehl, S, Büchner, B, Braden, M

“…Magnetic correlations in superconducting LiFeAs were studied by elastic and by inelastic neutron-scattering experiments. There is no indication for static…”
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Signatures of a magnetic field-induced unconventional nematic liquid in the frustrated and anisotropic spin-chain cuprate LiCuSbO4 by Grafe, H.-J., Nishimoto, S., Iakovleva, M., Vavilova, E., Spillecke, L., Alfonsov, A., Sturza, M.-I., Wurmehl, S., Nojiri, H., Rosner, H., Richter, J., Rößler, U. K., Drechsler, S.-L., Kataev, V., Büchner, B.

“…Modern theories of quantum magnetism predict exotic multipolar states in weakly interacting strongly frustrated spin-1/2 Heisenberg chains with ferromagnetic…”
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Flux growth of Srn+1IrnO3n+1 (n = 1, 2, ∞) crystals by Manna, K., Aslan-Cansever, G., Maljuk, A., Wurmehl, S., Seiro, S., Büchner, B.

“…•Srn+1IrnO3n+1 (n = 1, 2, and ∞) crystals are grown from anhydrous SrCl2 well below T boiling.•Nutrient-to-solvent ratio is varied to select proper n.•Growth…”
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Probing the role of co substitution in the electronic structure of iron pnictides by Levy, G, Sutarto, R, Chevrier, D, Regier, T, Blyth, R, Geck, J, Wurmehl, S, Harnagea, L, Wadati, H, Mizokawa, T, Elfimov, I S, Damascelli, A, Sawatzky, G A

“…The role of Co substitution in the low-energy electronic structure of Ca(Fe(0.944)Co(0.056))(2)As(2) is investigated by resonant photoemission spectroscopy and…”
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Experimental Evidence of Three-Gap Superconductivity in LiFeAs by Kuzmicheva, T. E., Kuzmichev, S. A., Morozov, I. V., Wurmehl, S., Büchner, B.

“…Despite the simple crystal structure, LiFeAs having nontrivial band structure and anisotropy of superconducting properties seems the most exotic compound among…”
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Phase dynamics, structural, and magnetic properties of a Mn2.6Ga1−xSnx alloy series by Hettmann, D., Löser, W., Blum, C.G.F., Wurmehl, S.

“…Although Mn-Ga alloys are discussed as novel permanent magnetic materials, there are several drawbacks, including the high price of Ga and the yet too small…”
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Weak superconducting pairing and a single isotropic energy gap in stoichiometric LiFeAs by Inosov, D S, White, J S, Evtushinsky, D V, Morozov, I V, Cameron, A, Stockert, U, Zabolotnyy, V B, Kim, T K, Kordyuk, A A, Borisenko, S V, Forgan, E M, Klingeler, R, Park, J T, Wurmehl, S, Vasiliev, A N, Behr, G, Dewhurst, C D, Hinkov, V

“…We report superconducting (SC) properties of stoichiometric LiFeAs (T(c)=17 K) studied by small-angle neutron scattering (SANS) and angle-resolved…”
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Nematicity and structure in LaFe1-xCoxAsO by Wang, L., Sauerland, S., Scaravaggi, F., Kappenberger, R., Aswartham, S., Wurmehl, S., Wolter, A.U.B., Büchner, B., Klingeler, R.

“…We present thermal expansion studies on single-crystalline LaFe1-xCoxAsO with doping levels of x = 0, 0.026, and 0.034, and on BaFe2As2. Anomalies in the…”
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Direct study of structural phase transformation in single crystalline bulk and thin film BaFe2As2 by Pukenas, A., Chekhonin, P., Meißner, M., Hieckmann, E., Aswartham, S., Freudenberger, J., Engelmann, J., Hühne, R., Wurmehl, S., Büchner, B., Skrotzki, W.

“…•Confirmation of twin structure in the orthorhombic BaFe2As2 bulk single crystals.•Absence of orthorhombic domains in a fully strained 20 nm BaFe2As2 thin…”
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Non-Fermi-liquid scattering rates and anomalous band dispersion in ferropnictides by Fink, J., Charnukha, A., Rienks, E. D. L., Liu, Z. H., Thirupathaiah, S., Avigo, I., Roth, F., Jeevan, H. S., Gegenwart, P., Roslova, M., Morozov, I., Wurmehl, S., Bovensiepen, U., Borisenko, S., Vojta, M., Büchner, B.

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Mutual Independence of Critical Temperature and Superfluid Density under Pressure in Optimally Electron-Doped Superconducting LaFeAsO1-xFx by Prando, G, Hartmann, Th, Schottenhamel, W, Guguchia, Z, Sanna, S, Ahn, F, Nekrasov, I, Blum, C G F, Wolter, A U B, Wurmehl, S, Khasanov, R, Eremin, I, Buchner, B

“…The superconducting properties of LaFeAsO1-xFx under conditions of optimal electron doping are investigated upon the application of external pressure up to ~23…”
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Strain derivative of thermoelectric properties as a sensitive probe for nematicity by Caglieris, F., Wuttke, C., Hong, X. C., Sykora, S., Kappenberger, R., Aswartham, S., Wurmehl, S., Büchner, B., Hess, C.

“…The nematic instability is an undebatable ingredient of the physics of iron-based superconductors. Yet, its origin remains enigmatic as it involves a…”
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Weak-coupling superconductivity in a strongly correlated iron pnictide by Charnukha, A., Post, K. W., Thirupathaiah, S., Pröpper, D., Wurmehl, S., Roslova, M., Morozov, I., Büchner, B., Yaresko, A. N., Boris, A. V., Borisenko, S. V., Basov, D. N.

“…Iron-based superconductors have been found to exhibit an intimate interplay of orbital, spin and lattice degrees of freedom, dramatically affecting their…”
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Epitaxial films of Heusler compound Co2FeAl0.5Si0.5 with high crystalline quality grown by off-axis sputtering by Peters, B., Alfonsov, A., Blum, C. G. F., Hageman, Stephen J., Woodward, P. M., Wurmehl, S., Büchner, B., Yang, F. Y.

“…Co2FeAl0.5Si0.5 films with a surface roughness of 0.12 nm have been grown epitaxially on lattice-matched MgAl2O4 (001) substrates by off-axis sputtering. X-ray…”
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Two distinct superconducting phases in LiFeAs by Nag, P. K., Schlegel, R., Baumann, D., Grafe, H.-J., Beck, R., Wurmehl, S., Büchner, B., Hess, C.

“…A non-trivial temperature evolution of superconductivity including a temperature-induced phase transition between two superconducting phases or even a…”
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Inhomogeneities and superconductivity in poly-phase Fe-Se-Te systems by Hartwig, S., Schäfer, N., Schulze, M., Landsgesell, S., Abou-Ras, D., Blum, Ch.G.F., Wurmehl, S., Sokolowski, A., Büchner, B., Prokeš, K.

“…The impact of synthesis conditions, post-preparation heating procedure, aging and influence of pressure on the superconducting properties of FeSe0.4Te0.6…”
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Growth of single crystalline delafossite LaCuO2 by the travelling-solvent floating zone method by Mohan, A., Büchner, B., Wurmehl, S., Hess, C.

“…Single crystals of LaCuO2 have been grown for the first time using the travelling-solvent floating zone method. The crystal was grown in an Ar-atmosphere by…”
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Defect states in LiFeAs as seen by low‐temperature scanning tunneling microscopy and spectroscopy by Schlegel, R., Nag, P. K., Baumann, D., Beck, R., Wurmehl, S., Büchner, B., Hess, C.

“…We present a microscopic investigation of frequently observed impurity‐induced states in stoichiometric LiFeAs using low‐temperature scanning tunneling…”
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