Zobrazeno 1 - 10
of 826
pro vyhledávání: '"Vojta, M"'
Autor:
Lee, S., Choi, Y. S., Do, S. -H., Lee, W., Lee, C. H., Lee, M., Vojta, M., Wang, C. N., Luetkens, H., Guguchia, Z., Choi, K. -Y.
Publikováno v:
Nature Communications 14, 7405 (2023)
Kondo impurities provide a nontrivial probe to unravel the character of the excitations of a quantum spin liquid. In the S=1/2 Kitaev model on the honeycomb lattice, Kondo impurities embedded in the spin-liquid host can be screened by itinerant Major
Externí odkaz:
http://arxiv.org/abs/2311.11617
Autor:
Gass, S., Cônsoli, P. M., Kocsis, V., Corredor, L. T., Lampen-Kelley, P., Mandrus, D. G., Nagler, S. E., Janssen, L., Vojta, M., Büchner, B., Wolter, A. U. B.
Publikováno v:
Phys. Rev. B 101, 245158 (2020)
High-resolution thermal expansion and magnetostriction measurements were performed on single crystals of $\alpha$-RuCl$_3$ in magnetic fields applied parallel to the Ru-Ru bonds. The length changes were measured in the direction perpendicular to the
Externí odkaz:
http://arxiv.org/abs/2003.07081
Autor:
Bastien, G., Roslova, M., Haghighi, M. H., Mehlawat, K., Hunger, J., Isaeva, A., Doert, T., Vojta, M., Büchner, B., Wolter, A. U. B.
Publikováno v:
Phys. Rev. B 99, 214410 (2019)
Magnetic properties of the substitution series Ru$_{1-x}$Cr$_x$Cl$_3$ were investigated to determine the evolution from the anisotropic Kitaev magnet $\alpha$-RuCl$_3$ with $J_{\rm eff} = 1/2$ magnetic Ru$^{3+}$ ions to the isotropic Heisenberg magne
Externí odkaz:
http://arxiv.org/abs/1903.04248
Autor:
Lampen-Kelley, P., Janssen, L., Andrade, E. C., Rachel, S., Yan, J. -Q., Balz, C., Mandrus, D. G., Nagler, S. E., Vojta, M.
Frustrated magnets with strong spin-orbit coupling promise to host topological states of matter, with fractionalized excitations and emergent gauge fields. Kitaev's proposal for a honeycomb-lattice Majorana spin liquid has triggered an intense search
Externí odkaz:
http://arxiv.org/abs/1807.06192
Autor:
Wellm, C., Zeisner, J., Alfonsov, A., Wolter, A. U. B., Roslova, M., Isaeva, A., Doert, T., Vojta, M., Büchner, B., Kataev, V.
Publikováno v:
Phys. Rev. B 98, 184408 (2018)
Topologically ordered states of matter are generically characterized by excitations with quantum number fractionalization. A prime example is the spin liquid realized in Kitaev's honeycomb-lattice compass model where spin-flip excitations fractionali
Externí odkaz:
http://arxiv.org/abs/1710.00670
Autor:
Wolter, A. U. B., Corredor, L. T., Janssen, L., Nenkov, K., Schönecker, S., Do, S. -H., Choi, K. -Y., Albrecht, R., Hunger, J., Doert, T., Vojta, M., Büchner, B.
Publikováno v:
Phys. Rev. B 96, 041405 (2017)
$\alpha$-RuCl$_3$ has attracted enormous attention since it has been proposed as a prime candidate to study fractionalized magnetic excitations akin to Kitaev's honeycomb-lattice spin liquid. We have performed a detailed specific-heat investigation a
Externí odkaz:
http://arxiv.org/abs/1704.03475
Autor:
Portnichenko, P. Y., Paschen, S., Prokofiev, A., Vojta, M., Cameron, A. S., Mignot, J. -M., Ivanov, A., Inosov, D. S.
Publikováno v:
Phys. Rev. B 94, 245132 (2016)
The clathrate compound Ce3Pd20Si6 is a heavy-fermion metal that exhibits magnetically hidden order at low temperatures. Reputedly, this exotic type of magnetic ground state, known as "phase II", could be associated with the ordering of Ce 4f quadrupo
Externí odkaz:
http://arxiv.org/abs/1610.10015
Autor:
Avigo, I., Thirupathaiah, S., Rienks, E. D. L., Rettig, L., Charnukha, A., Ligges, M., Cortes, R., Nayak, J., Jeevan, H. S., Wolf, T., Huang, Y., Wurmehl, S., Gegenwart, P., Golden, M. S., Büchner, B., Vojta, M., Wolf, M., Felser, C., Fink, J., Bovensiepen, U.
Publikováno v:
Phys. Status Solidi B, 1-15 (2016)
In this article we review our angle- and time-resolved photoemission studies (ARPES and trARPES) on various ferropnictides.
Externí odkaz:
http://arxiv.org/abs/1606.07633
Publikováno v:
Phys. Rev. B 94, 125109 (2016)
For arbitrary space dimension $d$ we investigate the quantum phase transitions of two paradigmatic spin models defined on a hypercubic lattice, the coupled-dimer Heisenberg model and the transverse-field Ising model. To this end high-order linked-clu
Externí odkaz:
http://arxiv.org/abs/1605.05848
Autor:
Sarkar, R., Krizan, J. W., Brückner, F., Andrade, E. C., Rachel, S., Vojta, M., Cava, R. J., Klauss, H. -H.
Publikováno v:
Phys. Rev. B 96, 235117 (2017)
We present results of $^{23}$Na and $^{19}$F nuclear magnetic resonance (NMR) measurements on NaCaCo$_2$F$_7$, a frustrated pyrochlore magnet with a Curie-Weiss temperature, $T_{cw}$ ~-140 K, and intrinsic bond disorder. Below 3.6 K both the $^{23}$N
Externí odkaz:
http://arxiv.org/abs/1604.00814