Zobrazeno 1 - 10
of 677
pro vyhledávání: '"Roessli, B"'
Autor:
Giles-Donovan, N., Hillier, A. D., Ishida, K., Hampshire, B. V., Giblin, S. R., Roessli, B., Gehring, P. M., Xu, G., Li, X., Luo, H., Cochran, S., Stock, C.
Publikováno v:
J. Phys.: Condens. Matter 36 435802 (2024)
Relaxor-ferroelectrics display exceptional dielectric properties resulting from the underlying random dipolar fields induced by strong chemical inhomogeneity. An unusual structural aspect of relaxors is a skin-effect where the near-surface region in
Externí odkaz:
http://arxiv.org/abs/2407.11227
Autor:
Lane, H., Sarte, P. M., Guratinder, K., Arevalo-Lopez, A. M., Perry, R. S., Hunter, E. C., Weber, T., Roessli, B., Stunault, A., Su, Y., Ewings, R. A., Wilson, S. D., Böni, P., Attfield, J. P., Stock, C.
Publikováno v:
Phys. Rev. Research 5, 043146 (2023)
MgV$_{2}$O$_{4}$ is a spinel based on magnetic V$^{3+}$ ions which host both spin ($S=1$) and orbital ($l_{eff}=1$) moments. Owing to the underlying pyrochlore coordination of the magnetic sites, the spins in MgV$_{2}$O$_{4}$ only antiferromagnetical
Externí odkaz:
http://arxiv.org/abs/2309.06853
Autor:
Stock, C., Roessli, B., Gehring, P. M., Rodriguez-Rivera, J. A., Giles-Donovan, N., Cochran, S., Xu, G., Manuel, P., Gutmann, M. J., Ratcliff, W. D., Fennell, T., Su, Y., Li, X., Luo, H.
Publikováno v:
Phys. Rev. B 106, 144207 (2022)
PbFe$_{1/2}$Nb$_{1/2}$O$_{3}$ (PFN) is a relaxor ferroelectric (T$_{c}$ $\sim$ 400 K) consisting of disordered magnetic Fe$^{3+}$ (S=${5\over2}$, L$\approx$0) ions resulting in a low temperature ``cluster glass" phase (W. Kleemann $\textit{et al.}$ P
Externí odkaz:
http://arxiv.org/abs/2210.15706
Publikováno v:
Commun Phys 5, 185 (2022)
Topological magnon insulators constitute a growing field of research for their potential use as information carriers without heat dissipation. We report an experimental and theoretical study of the magnetic ground-state and excitations in the van der
Externí odkaz:
http://arxiv.org/abs/2206.10168
Autor:
Facheris, L., Povarov, K. Yu., Nabi, S. D., Mazzone, D. G., Lass, J., Roessli, B., Ressouche, E., Yan, Z., Gvasaliya, S., Zheludev, A.
Publikováno v:
Phys. Rev. Lett. 129, 087201 (2022)
We report an excellent realization of the highly non-classical incommensurate spin-density wave (SDW) state in the quantum frustrated antiferromagnetic insulator Cs$_2$CoBr$_4$. In contrast to the well-known Ising spin chain case, here the SDW is sta
Externí odkaz:
http://arxiv.org/abs/2204.10682
Autor:
Wessler, C., Roessli, B., Krämer, K. W., Delley, B., Waldmann, O., Keller, L., Cheptiakov, D., Braun, H. B., Kenzelmann, M.
Publikováno v:
npj Quantum Mater. 5, 85 (2020)
Quantum spin liquids are materials that feature quantum entangled spin correlations and avoid magnetic long-range order at T = 0 K. Particularly interesting are two-dimensional honeycomb spin lattices where a plethora of exotic quantum spin liquids h
Externí odkaz:
http://arxiv.org/abs/2003.02529
Publikováno v:
J. Phys. Condens. Matter 32, 374012 (2020)
Materials based on the cubic perovskite unit cell continue to provide the basis for technologically important materials with two notable recent examples being lead-based relaxor piezoelectrics and lead-based organic-inorganic halide photovoltaics. Th
Externí odkaz:
http://arxiv.org/abs/2002.00996
Autor:
Yaouanc, A., de Reotier, P. Dalmas, Roessli, B., Maisuradze, A., Amato, A., Andreica, D., Lapertot, G.
Publikováno v:
Phys. Rev. Research 2, 013029 (2020)
The temperature dependence of the manganese magnetic moment and the spin-lattice relaxation rate measured by the muon spin relaxation technique in the magnetically ordered phase of the chiral intermetallic cubic MnSi system are both explained in term
Externí odkaz:
http://arxiv.org/abs/1912.01257
Akademický článek
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Autor:
de Reotier, P. Dalmas, Yaouanc, A., Amato, A., Maisuradze, A., Andreica, D., Roessli, B., Goko, T., Scheuermann, R., Lapertot, G.
Publikováno v:
Quantum Beam Sci. 2, 19 (2018)
Muon spin rotation (muSR) spectra recorded for manganese silicide MnSi and interpreted in terms of a quantitative analysis constrained by symmetry arguments were recently published. The magnetic structures of MnSi in zero-field at low temperature and
Externí odkaz:
http://arxiv.org/abs/1810.01328