Zobrazeno 1 - 10
of 762
pro vyhledávání: '"Wurmehl, S."'
Autor:
Senyk, Y., Abraham, J.J., Kanak, A., Horiacha, M., Büchner, B., Wurmehl, S., Kataev, V., Alfonsov, A.
Publikováno v:
In Journal of Alloys and Compounds 5 November 2024 1004
Autor:
Amigó, M. L., Stahl, Q., Maljuk, A., Wolter, A. U. B., Hess, C., Geck, J., Wurmehl, S., Seiro, S., Büchner, B.
Publikováno v:
Phys. Rev. Materials 5, 094801 (2021)
BaFe$_2$S$_3$ is a quasi-one-dimensional antiferromagnetic insulator that becomes superconducting under hydrostatic pressure. The magnetic ordering temperature, $T_N$, as well as the presence of superconductivity have been found to be sample dependen
Externí odkaz:
http://arxiv.org/abs/2101.07823
Publikováno v:
Phys. Rev. Research 2, 043179 (2020)
In Eu2ZnIrO6, effectively two atoms are active i.e. Ir is magnetically active, which results in complex magnetic ordering within the Ir sublattice at low temperature. On the other hand, although Eu is a van-vleck paramagnet, it is active in the elect
Externí odkaz:
http://arxiv.org/abs/2006.09653
Autor:
Takegami, D., Kasinathan, D., Wolff, K. K., Altendorf, S. G., Chang, C. F., Hoefer, K., Melendez-Sans, A., Utsumi, Y., Meneghin, F., Ha, T. D., Yen, C. H., Chen, K., Kuo, C. Y., Liao, Y. F., Tsuei, K. D., Morrow, R., Wurmehl, S., Büchner, B., Prasad, B. E., Jansen, M., Komarek, A. C., Hansmann, P., Tjeng, L. H.
Publikováno v:
Phys. Rev. B 102, 045119 (2020)
We have investigated the electronic structure of iridates in the double perovskite crystal structure containing either Ir$^{4+}$ or Ir$^{5+}$ using hard x-ray photoelectron spectroscopy. The experimental valence band spectra can be well reproduced us
Externí odkaz:
http://arxiv.org/abs/2005.11961
Autor:
Fink, J., Rienks, E. D. L., Yao, M., Kurleto, R., Bannies, J., Aswartham, S., Morozov, I., Wurmehl, S., Wolf, T., Hardy, F., Meingast, C., Jeevan, H. S., Maiwald, J., Gegenwart, P., Felser, C., Buechner, B.
Publikováno v:
Phys. Rev. B 103, 155119 (2021)
We report an angle-resolved photoemission study of a series of hole and electron doped iron-based superconductors, their parent compound BaFe2As2, and their cousins BaCr2As2 and BaCo2As2. We focus on the energy (E) dependent scattering rate Gamma(E)
Externí odkaz:
http://arxiv.org/abs/2005.08216
Publikováno v:
Phys. Rev. Research 2, 023162 (2020)
We report comprehensive Raman-scattering measurements on a single crystal of double-perovskite Nd2ZnIrO6 in temperature range of 4-330 K, and spanning a broad spectral range from 20 cm-1 to 5500 cm-1. The paper focuses on lattice vibrations and elect
Externí odkaz:
http://arxiv.org/abs/2002.12101
Autor:
Vogl, M., Morrow, R., Aczel, A. A., Rodriguez, R. Beltran, Wolter, A. U. B., Wurmehl, S., Aswartham, S., Büchner, B.
Publikováno v:
Phys. Rev. Materials 4, 054413 (2020)
In this work, we report on the synthesis and magnetic properties of a series of double perovskites Ln$_2$ZnIrO$_6$ with Ln = Nd, Sm, Eu & Gd. These compounds present new examples of the rare case of double perovskites (general formula A$_2$BB'O$_6$)
Externí odkaz:
http://arxiv.org/abs/1910.13552
Autor:
Vogl, M., Bastien, G., Sarkar, R., Morrow, R., Barker, J. A. T., Orain, J. -C., Luetkens, H., Wolter, A. U. B., Klauss, H. -H., Wurmehl, S., Aswartham, S., Büchner, B.
The synthesis and characterization of the previously unknown material LaCaScIrO$_6$ is reported. LaCaScIrO$_6$ presents a new example of the rare case of a double perovskite with the strongly spin-orbit coupled 5\textit{d}-ion Ir$^{4+}$ as its only m
Externí odkaz:
http://arxiv.org/abs/1910.04613
Publikováno v:
Phys. Rev. Research 2, 013040 (2020)
The quest for Kitaev spin liquids in particular three dimensional solids is long sought goal in condensed matter physics, as these states may give rise to exotic new types of quasi-particle excitations carrying fractional quantum numbers namely Major
Externí odkaz:
http://arxiv.org/abs/1909.04322
Autor:
Wasser, F., Park, J. -T., Aswartham, S., Wurmehl, S., Sidis, Y., Steffens, P., Schmalzl, K., Büchner, B., Braden, M.
Publikováno v:
npj Quantum Mater. 4, 59 (2019)
Spin-resonance modes (SRM) are taken as evidence for magnetically driven pairing in Fe-based superconductors, but their character remains poorly understood. The broadness, the splitting and the spin-space anisotropies of SRMs contrast with the mostly
Externí odkaz:
http://arxiv.org/abs/1909.03046