Zobrazeno 1 - 10
of 278
pro vyhledávání: '"Prokhnenko O"'
Autor:
Nikitin, S. E., Xie, Tao, Gazizulina, A., Ouladdiaf, B., Velamazán, J. A. Rodríguez, Díaz-Ortega, I. ~F., Nojiri, H., Anovitz, L. M., Santos, A. M. dos, Prokhnenko, O., Podlesnyak, A.
We report the direct observation of a commensurate-ordered antiferromagnetic (AFM) state but incommensurate helical spin dynamics in the natural mineral brochantite Cu$_4$SO$_4$(OH)$_6$ through neutron diffraction and neutron spectroscopy measurement
Externí odkaz:
http://arxiv.org/abs/2407.12767
Autor:
Cameron, A. S., Campillo, E., Alshemi, A., Bartkowiak, M., Shen, L., Kawano-Furukawa, H., Holmes, A. T., Prokhnenko, O., Gazizulina, A., White, J. S., Cubitt, R., Steinke, N. -J., Dewhurst, C. D., Erb, A., Forgan, E. M., Blackburn, E.
We present small angle neutron scattering studies of the magnetic vortex lattice (VL) in Ca$_{0.04}$Y$_{0.96}$Ba$_{2}$Cu$_{3}$O$_{7}$ up to a field of 16.7 T, and Ca$_{0.15}$Y$_{0.85}$Ba$_{2}$Cu$_{3}$O$_{7}$ up to 25 T. We find that the series of vor
Externí odkaz:
http://arxiv.org/abs/2208.06706
Autor:
Allenspach, S., Madsen, A., Biffin, A., Bartkowiak, M., Prokhnenko, O., Gazizulina, A., Liu, X., Wahle, R., Gerischer, S., Kempfer, S., Heller, P., Smeibidl, P., Mira, A., Laflorencie, N., Mila, F., Normand, B., Rüegg, Ch.
Publikováno v:
PhysRevB.106.104418 (2022)
BaCuSi$_2$O$_6$ is a quasi-two-dimensional (2D) quantum antiferromagnet containing three different types of stacked, square-lattice bilayer hosting spin-1/2 dimers. Although this compound has been studied extensively over the last two decades, the cr
Externí odkaz:
http://arxiv.org/abs/2207.12445
Autor:
Campillo, E., Bartkowiak, M., Riyat, R., Jellyman, E., Cameron, A. S., Holmes, A. T., Prokhnenko, O., Stein, W. -D., Erb, A., Forgan, E. M., Blackburn, E.
We report on the evolution with magnetic field and temperature of the vortex lattice (VL) in fully-oxygenated YBa2Cu3O7 as studied by time-of-flight small angle neutron scattering. Using the HFM/EXED beamline, we have obtained data up to 25.9 T - muc
Externí odkaz:
http://arxiv.org/abs/2203.01705
Autor:
Sakhratov, Yu. A., Prokhnenko, O., Shapiro, A. Ya., Zhou, H. D., Svistov, L. E., Reyes, A. P., Petrenko, O. A.
The magnetic H - T phase diagram of a quasi-two-dimensional antiferromagnet RbFe(MoO4)2 with an equilateral triangular lattice structure is studied with 87Rb NMR and neutron diffraction techniques. This combination of experimental techniques allows u
Externí odkaz:
http://arxiv.org/abs/2112.06182
Autor:
Prokhnenko, O., Marmorini, G., Nikitin, S. E., Yamamoto, D., Gazizulina, A., Bartkowiak, M., Ponomaryov, A. N., Zvyagin, S. A., Nojiri, H., Díaz-Ortega, I. F., Anovitz, L. M., Kolesnikov, A. I., Podlesnyak, A.
Publikováno v:
Phys. Rev. B 103, 014427 (2021)
The high-field magnetic properties and magnetic order of the gem mineral green dioptase Cu$_6[$Si$_6$O$_{18}]\cdot 6$H$_2$O have been studied by means of single-crystal neutron diffraction in magnetic fields up to $21~$T and magnetization measurement
Externí odkaz:
http://arxiv.org/abs/2101.08555
Autor:
Landolt, F., Bettler, S., Yan, Z., Gvasaliya, S., Zheludev, A., Mishra, S., Sheikin, I., Krämer, S., Horvatić, M., Gazizulina, A., Prokhnenko, O.
Publikováno v:
Phys. Rev. B 102, 094414 (2020)
Magnetization, magnetic torque, neutron diffraction and NMR experiments are used to map out the $H$$-$$T$ phase diagram of the prototypical quasi-two-dimensional ferro-antiferromagnet Pb$_2$VO(PO$_4$)$_2$ in magnetic fields up to 27 T. When the field
Externí odkaz:
http://arxiv.org/abs/2006.04592
Publikováno v:
Phys. Rev. Research 2, (2020) 013137
We report an unexpected magnetic-field-driven magnetic structure in the 5f-electron Shastry- Sutherland system U2Pd2In. This phase develops at low temperatures from a noncollinear antiferromagnetic ground state above the critical field of 25.8 T appl
Externí odkaz:
http://arxiv.org/abs/2002.10132
Autor:
Pregelj, M., Zorko, A., Klanjšek, M., Zaharko, O., White, J. S., Prokhnenko, O., Bartkowiak, M., Nojiri, H., Berger, H., Arčon, D.
Publikováno v:
Phys. Rev. B 100, 094433 (2019)
Frustrated spin-1/2 chains, despite the apparent simplicity, exhibit remarkably rich phase diagram comprising vector-chiral (VC), spin-density-wave (SDW) and multipolar/spin-nematic phases as a function of the magnetic field. Here we report a study o
Externí odkaz:
http://arxiv.org/abs/1909.07085
Autor:
Heinze, L., Jeschke, H. O., Mazin, I. I., Metavitsiadis, A., Reehuis, M., Feyerherm, R., Hoffmann, J. -U., Bartkowiak, M., Prokhnenko, O., Wolter, A. U. B., Ding, X., Zapf, V. S., Moya, C. Corvalán, Weickert, F., Jaime, M., Rule, K. C., Menzel, D., Valentí, R., Brenig, W., Süllow, S.
Publikováno v:
Phys. Rev. Lett. 126, 207201 (2021)
We present a combined experimental and theoretical study of the mineral atacamite Cu$_2$Cl(OH)$_3$. Density functional theory yields a Hamiltonian describing anisotropic sawtooth chains with weak 3D connections. Experimentally, we fully characterize
Externí odkaz:
http://arxiv.org/abs/1904.07820