Zobrazeno 1 - 10
of 489
pro vyhledávání: '"Rønnow, H M"'
Autor:
Fogh, E., Giriat, G., Zayed, M. E., Piovano, A., Boehm, M., Steffens, P., Safiulina, I., Hansen, U. B., Klotz, S., Soh, J. -R., Pomjakushina, E., Mila, F., Normand, B., Rønnow, H. M.
Quantum magnetic materials can provide explicit realizations of paradigm models in quantum many-body physics. In this context, SrCu$_2$(BO$_3$)$_2$ is a faithful realization of the Shastry-Sutherland model (SSM) for ideally frustrated spin dimers, ev
Externí odkaz:
http://arxiv.org/abs/2406.17546
Autor:
Tolj, D., Reddy, P., Živković, I., Akšamović, L., Soh, J. R., Komȩdera, K., Biało, I., Kumar, C. M. N., Ivšić, T., Novak, M., Zaharko, O., Ritter, C., La Grange, T., Tabiś, W., Batistić, I., Forró, L., Rønnow, H. M., Sunko, D. K., Barišić, N.
Murunskite (K$_2$FeCu$_3$S$_4$) is a bridging compound between the only two known families of high-temperature superconductors. It is a semiconductor like the parent compounds of cuprates, yet isostructural to metallic iron-pnictides. Moreover, like
Externí odkaz:
http://arxiv.org/abs/2406.17108
Autor:
Wang, Qisi, Mustafi, S., Fogh, E., Astrakhantsev, N., He, Z., Biało, I., Chan, Ying, Martinelli, L., Horio, M., Ivashko, O., Shaik, N. E., von Arx, K., Sassa, Y., Paris, E., Fischer, M. H., Tseng, Y., Christensen, N. B., Galdi, A., Schlom, D. G., Shen, K. M., Schmitt, T., Rønnow, H. M., Chang, J.
Publikováno v:
Nature Communications 15, 5348 (2024)
Quantum fluctuations in low-dimensional systems and near quantum phase transitions have significant influences on material properties. Yet, it is difficult to experimentally gauge the strength and importance of quantum fluctuations. Here we provide a
Externí odkaz:
http://arxiv.org/abs/2311.16553
Autor:
Horio, M., Forte, F., Sutter, D., Kim, M., Fatuzzo, C. G., Matt, C. E., Moser, S., Wada, T., Granata, V., Fittipaldi, R., Sassa, Y., Gatti, G., Rønnow, H. M., Hoesch, M., Kim, T. K., Jozwiak, C., Bostwick, A., Rotenberg, Eli, Matsuda, I., Georges, A., Sangiovanni, G., Vecchione, A., Cuoco, M., Chang, J.
Publikováno v:
Commun. Phys. 6, 323 (2023)
Doped Mott insulators are the starting point for interesting physics such as high temperature superconductivity and quantum spin liquids. For multi-band Mott insulators, orbital selective ground states have been envisioned. However, orbital selective
Externí odkaz:
http://arxiv.org/abs/2310.13170
Autor:
Gonzalez, M. G., Noculak, V., Sharma, A., Favre, V., Soh, J-R., Magrez, A., Bewley, R., Jeschke, H. O., Reuther, J., Rønnow, H. M., Iqbal, Y., Živković, I.
Publikováno v:
Nat. Commun. 15, 7191 (2024)
Quantum spin liquids (QSLs) have become a key area of research in magnetism due to their remarkable properties, such as long-range entanglement, fractional excitations, pinch-point singularities, and topologically protected phenomena. In recent years
Externí odkaz:
http://arxiv.org/abs/2308.11746
Autor:
Wildes, A. R., Fåk, B., Hansen, U. B., Enderle, M., Stewart, J. R., Testa, L., Rønnow, H. M., Kim, C., Park, Je-Geun
The spin waves in single crystals of the layered van der Waals antiferromagnet CoPS$_3$ have been measured using inelastic neutron scattering. The data show four distinct spin wave branches with large ($\gtrsim 14$ meV) energy gaps at the Brillouin z
Externí odkaz:
http://arxiv.org/abs/2212.06479
Autor:
Ribeiro, C. Kaufmann, Mello, L., Martelli, V., Cornejo, D., Neto, M. B. Silva, Fogh, E., Rønnow, H. M., Jiménez, J. Larrea
The role of controlled disorder in the strong correlated narrow gap semiconductor candidate FeGa$_3$ has been investigated. Polycrystalline samples were synthesized by the combination of arc-melting furnace and successive annealing processes. Deviati
Externí odkaz:
http://arxiv.org/abs/2208.09064
Autor:
Tseng, Y., Thomas, J., Zhang, W., Paris, E., Puphal, P., Bag, R., Deng, G., Asmara, T. C., Strocov, V. N., Singh, S., Pomjakushina, E., Kumar, U., Nocera, A., Rønnow, H. M., Johnston, S., Schmitt, T.
Publikováno v:
npj Quantum Mater. 7, 92 (2022)
We studied the magnetic excitations in the quasi-one-dimensional (q-1D) ladder subsystem of Sr_(14-x) Ca_x Cu_24 O_41(SCCO) using Cu L_3-edge resonant inelastic X-ray scattering (RIXS). By comparing momentum-resolved RIXS spectra with (x=12.2) and wi
Externí odkaz:
http://arxiv.org/abs/2201.05027
Autor:
Preißinger, M., Karube, K., Ehlers, D., Szigeti, B., von Nidda, H. -A. Krug, White, J. S., Ukleev, V., Rønnow, H. M., Tokunaga, Y., Kikkawa, A., Tokura, Y., Taguchi, Y., Kézsmárki, I.
The impact of magnetic anisotropy on the skyrmion lattice (SkL) state in cubic chiral magnets has been overlooked for long, partly because a semi-quantitative description of the thermodynamically stable SkL phase pocket forming near the Curie tempera
Externí odkaz:
http://arxiv.org/abs/2011.05967
Autor:
Jiménez, J. Larrea, Crone, S. P. G., Fogh, E., Zayed, M. E., Lortz, R., Pomjakushina, E., Conder, K., Läuchli, A. M., Weber, L., Wessel, S., Honecker, A., Normand, B., Rüegg, Ch., Corboz, P., Rønnow, H. M., Mila, F.
Publikováno v:
Nature {\bf 592}, 370 (2021)
At the familiar liquid-gas phase transition in water, the density jumps discontinuously at atmospheric pressure, but the line of these first-order transitions defined by increasing pressures terminates at the critical point, a concept ubiquitous in s
Externí odkaz:
http://arxiv.org/abs/2009.14492