Zobrazeno 1 - 10
of 265
pro vyhledávání: '"Grafe H. J."'
Autor:
Iakovleva, M., Petersen, T., Alfonsov, A., Skourski, Y., Grafe, H. -J., Vavilova, E., Nath, R., Hozoi, L., Kataev, V.
Publikováno v:
Phys. Rev. Materials 6, 094413 (2022)
We report a comprehensive study of the static susceptibility, high-field magnetization and high-frequency/high-magnetic field electron spin resonance (HF-ESR) spectroscopy of polycrystalline samples of the bismuth cobalt oxy-phosphate BiCoPO$_5$. Thi
Externí odkaz:
http://arxiv.org/abs/2211.01663
Autor:
Bougamha, F., Selter, S., Shemerliuk, Y., Aswartham, S., Benali, A., Büchner, B., Grafe, H. -J., Dioguardi, A. P.
We report the anomalous breakdown in the scaling of the microscopic magnetic susceptibility, as measured via the ${}^{31}$P nuclear magnetic resonance (NMR) shift $K$, with the bulk magnetic susceptibility $\chi$ in the paramagnetic state of Mn$_2$P$
Externí odkaz:
http://arxiv.org/abs/2112.02616
Autor:
Molatta, S., Opherden, D., Wosnitza, J., Zhang, Z. T., Wolf, T., Löhneysen, H. v., Sarkar, R., Biswas, P. K., Grafe, H. -J., Kühne, H.
Publikováno v:
Phys. Rev. B 104, 014504 (2021)
A number of recent experiments indicate that the iron-chalcogenide FeSe provides the long-sought possibility to study bulk superconductivity in the cross-over regime between the weakly coupled Bardeen--Cooper--Schrieffer (BCS) pairing and the strongl
Externí odkaz:
http://arxiv.org/abs/2010.10128
Autor:
Dioguardi, A. P., Selter, S., Aswartham, S., Sturza, M. -I., Murugesan, R., Eldeeb, M. S., Hozoi, L., Büchner, B., Grafe, H. -J.
Publikováno v:
Phys. Rev. B 102, 064429 (2020)
Detailed ${}^{31}$P nuclear magnetic resonance (NMR) measurements are presented on well-characterized single crystals of antiferromagnetic van der Waals Ni$_2$P$_2$S$_6$. An anomalous breakdown is observed in the proportionality of the NMR shift $K$
Externí odkaz:
http://arxiv.org/abs/2004.05403
Autor:
Iakovleva, M., Janson, O., Grafe, H. -J., Dioguardi, A. P., Maeter, H., Yeche, N., Klauss, H. -H., Pascua, G., Luetkens, H., Moeller, A., Buechner, B., Kataev, V., Vavilova, E.
Publikováno v:
Phys. Rev. B 100, 144442 (2019)
We report a combined $^{115}$In NQR, $^{51}$V NMR and $\mu$SR spectroscopic study of the low-temperature magnetic properties of InCu$_{2/3}$V$_{1/3}$O$_3$, a quasi-two dimensional (2D) compound comprising in the spin sector a honeycomb lattice of ant
Externí odkaz:
http://arxiv.org/abs/2001.09881
Autor:
Moroni, M., Prando, G., Aswartham, S., Morozov, I., Bukowski, Z., Büchner, B., Grafe, H. J., Carretta, P.
Publikováno v:
Phys. Rev. B 99, 235147 (2019)
We discuss the results of $^{75}$As Nuclear Quadrupole Resonance (NQR) and muon spin relaxation measurements in AFe$_2$As$_2$ (A= Cs, Rb) iron-based superconductors. We demonstrate that the crossover detected in the nuclear spin-lattice relaxation ra
Externí odkaz:
http://arxiv.org/abs/1903.05029
Autor:
Hammerath, F., Sarkar, R., Kamusella, S., Baines, C., Klauss, H. -H., Dey, T., Maljuk, A., Gaß, S., Wolter, A. U. B., Grafe, H. -J., Wurmehl, S., Büchner, B.
Publikováno v:
Phys. Rev. B 96, 165108 (2017)
The cubic double perovskite Ba$_2$YIrO$_6$ has been investigated by the local probe techniques nuclear magnetic resonance ($^{89}$Y NMR) and muon spin rotation (muSR). Both methods confirm the absence of magnetic long-range order in this compound but
Externí odkaz:
http://arxiv.org/abs/1707.06027
Autor:
Zhang, Z. T., Dmytriieva, D., Molatta, S., Wosnitza, J., Khim, S., Gass, S., Wolter, A. U. B., Wurmehl, S., Grafe, H. -J., Kühne, H.
Publikováno v:
Phys. Rev. B 97, 115110 (2018)
We report $^{75}$As nuclear magnetic resonance measurements on single crystals of RbFe$_{2}$As$_{2}$ and CsFe$_{2}$As$_{2}$. Taking previously reported results for KFe$_{2}$As$_{2}$ into account, we find that the anisotropic electronic correlations e
Externí odkaz:
http://arxiv.org/abs/1703.00780
Non-collinear antiferromagnetism of coupled spins and pseudospins in the double perovskite La2CuIrO6
Autor:
Manna, Kaustuv, Sarkar, R., Fuchs, S., Onykiienko, Y. A., Bera, A. K., Cansever, G. Aslan, Kamusella, S., Maljuk, A., Blum, C. G. F., Corredor, L. T., Wolter, A. U. B., Yusuf, S. M., Frontzek, M., Keller, L., Iakovleva, M., Vavilova, E., Grafe, H. -J., Kataev, V., Klauss, H. -H., Inosov, D. S., Wurmehl, S., Büchner, B.
Publikováno v:
Phys. Rev. B 94 (2016) 144437
We report the structural, magnetic and thermodynamic properties of the double perovskite compound La2CuIrO6 from X-ray, neutron diffraction, neutron depolarization, dc magnetization, ac susceptibility, specific heat, muon-spin-relaxation (uSR), elect
Externí odkaz:
http://arxiv.org/abs/1608.07513
Autor:
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.
Publikováno v:
revised version published in Sci. Rep. 7, 6729 (2017)
Modern theories of quantum magnetism predict exotic multipolar states in weakly interacting strongly frustrated spin-1/2 Heisenberg chains with ferromagnetic nearest neighbor (NN) inchain exchange in high magnetic fields. Experimentally these states
Externí odkaz:
http://arxiv.org/abs/1607.05164