Zobrazeno 1 - 10
of 436
pro vyhledávání: '"Nikitin, A. E."'
Autor:
Andriushin, N. D., Nikitin, S. E., Fjellvåg, Ø. S., White, J. S., Podlesnyak, A., Inosov, D. S., Rahn, M. C., Schmidt, M., Baenitz, M., Sukhanov, A. S.
The spiral spin liquid (SSL) is a highly degenerate state characterized by a continuous contour or surface in reciprocal space spanned by a spiral propagation vector. Although the SSL state has been predicted in a number of various theoretical models
Externí odkaz:
http://arxiv.org/abs/2410.04954
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:
Ge, Han, Li, Tiantian, Nikitin, S. E., Zhao, Nan, Li, Fangli, Bu, Huanpeng, Yuan, Jiayue, Chen, Jian, Fu, Ying, Yang, Jiong, Wang, Le, Miao, Ping, Zhang, Qiang, Puente-Orench, Ines, Podlesnyak, Andrey, Sheng, Jieming, Wu, Liusuo
The complex interplay of spin frustration and quantum fluctuations in low-dimensional quantum materials leads to a variety of intriguing phenomena. This research focuses on a detailed analysis of the magnetic behavior exhibited by NdZnPO, a bilayer s
Externí odkaz:
http://arxiv.org/abs/2401.13318
Autor:
Andriushin, N. D., Sukhanov, A. S., Korshunov, A. N., Pavlovskii, M. S., Rahn, M. C., Nikitin, S. E.
The topology of electronic and phonon band structures of graphene is well studied and known to exhibit a Dirac cone at the K point of the Brillouin zone. Here, we applied inelastic x-ray scattering (IXS) along with $\textit{ab initio}$ calculations t
Externí odkaz:
http://arxiv.org/abs/2312.04575
Autor:
Xie, Tao, Gozel, S., Xing, Jie, Zhao, Nan, Avdoshenko, S. M., Wu, Liusuo, Sefat, Athena S., Chernyshev, A. L., Läuchli, A. M., Podlesnyak, A., Nikitin, S. E.
Publikováno v:
Physical Review Letters 133, 096703 (2024)
The extraordinary properties of the Kitaev model have motivated an intense search for new physics in materials that combine geometrical and bond frustration. In this work, we employ inelastic neutron scattering, spin wave theory, and exact diagonaliz
Externí odkaz:
http://arxiv.org/abs/2311.13146
Autor:
Xie, Tao, Zhao, Nan, Gozel, S., Xing, Jie, Avdoshenko, S. M., Taddei, K. M., Kolesnikov, A. I., Ma, Peiyue, Harrison, N., Cruz, C. dela, Wu, Liusuo, Sefat, Athena S., Chernyshev, A. L., Läuchli, A. M., Podlesnyak, A., Nikitin, S. E.
Publikováno v:
Physical Review B 110, 054445 (2024)
The two-dimensional triangular-lattice antiferromagnet (TLAF) is a textbook example of frustrated magnetic systems. Despite its simplicity, the TLAF model exhibits a highly rich and complex magnetic phase diagram, featuring numerous distinct ground s
Externí odkaz:
http://arxiv.org/abs/2311.13143
Autor:
Lifshits, M. A., Nikitin, S. E.
We consider the energy saving approximation of a Wiener process under unilateral constraints. We show that, almost surely, on large time intervals the minimal energy necessary for the approximation logarithmically depends on the interval's length. We
Externí odkaz:
http://arxiv.org/abs/2306.13305
Publikováno v:
Phys. Rev. B 108, L020402 (2023)
Based on Bethe-ansatz approach and inelastic neutron scattering experiments, we reveal evolution of confinement of many-body Bethe strings in ordered regions of quasi-one-dimensional antiferromagnet $\rm YbAlO_3$. In the antiferromagnetic phase, the
Externí odkaz:
http://arxiv.org/abs/2212.03442
Autor:
Xie, Tao, Eberharter, A. A., Xing, Jie, Nishimoto, S., Brando, M., Khanenko, P., Sichelschmidt, J., Turrini, A. A., Mazzone, D. G., Naumov, P. G., Sanjeewa, L. D., Harrison, N., Sefat, A. S., Normand, B., Lauchli, A. M., Podlesnyak, A., Nikitin, S. E.
Publikováno v:
npj Quantum Materials 8, 48 (2023)
Fifty years after Anderson's resonating valence-bond proposal, the spin-1/2 triangular-lattice Heisenberg antiferromagnet (TLHAF) remains the ultimate platform to explore highly entangled quantum spin states in proximity to magnetic order. Yb-based d
Externí odkaz:
http://arxiv.org/abs/2210.04928
We present a comprehensive study of static and dynamic magnetic properties in the Ising-like dipolar antiferromagnet (AFM) DyScO$_3$\ by means of DC and AC magnetization measurements supported by classical Monte-Carlo calculations. Our AC-susceptibil
Externí odkaz:
http://arxiv.org/abs/2204.12398