92 citations · 192 across the 15 of their papers we have counts for
15 papers
Effect of Magnetic Vacancies on the Spontaneous Spin-Reorientation Transition in HoFeAlO Single Crystals
S. A. Skorobogatov, V. A. Babkina, M. S. Pavlovskii +5
In this work, we report the first growth of single crystals of the substitution series HoFeAlO with aluminium concentrations up to and investigate the evolu…
Probing the real-space density of spin-entangled electrons
Federico Pisani, Leonie Spitz, Libor Vojáček +12
On the textbook example of an isolated antiferromagnetic Heisenberg dimer, we demonstrate that the magnetic form factor and the magnetic electron density distribution can be extrac…
First-Order Spin-Reorientation Transition and Incomplete Softening of the Antiferromagnetic Resonance Mode in Multiferroic GdFe(BO)
I. N. Khoroshiy, S. A. Skorobogatov, S. E. Nikitin +3
The multiferroic ferroborate GdFe(BO) with huntite-type structure exhibits magnetic ordering below T = 38 K and contains two magnetic subsystems associated with Gd…
Phonon spectrum in the spin-Peierls phase of CuGeO
L. Spitz, A. Razpopov, S. Biswas +10
CuGeO has long been studied as a prototypical example of the spin-Peierls transition in a Heisenberg chain. Despite intensive investigation of this quasi-one-dimensio…
Competition Between Multiferroic and Magnetic Soliton Lattice States in DyFeO
S. E. Nikitin, N. D. Andriushin, Ø. S. Fjellvåg +5
Simultaneous breaking of time reversal and inversion symmetries in multiferroics couples ferroelectricity to magnetism and is a source of unusual physical phenomena that can be use…
Easy-cone state mediating the spin reorientation in topological kagome magnet FeSn
L. Prodan, D. M. Evans, A. S. Sukhanov +7
We investigated temperature-driven spin reorientation (SR) in the itinerant kagome magnet FeSn using high-resolution synchrotron x-ray diffraction, neutron diffraction, mag…
Observation of the spiral spin liquid in a triangular-lattice material
N. D. Andriushin, S. E. Nikitin, Ø. S. Fjellvåg +7
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…
Helical Spin Dynamics in Commensurate Magnets: a Study on Brochantite, CuSO(OH)
S. E. Nikitin, Tao Xie, A. Gazizulina +8
We report the direct observation of a commensurate-ordered antiferromagnetic (AFM) state but incommensurate helical spin dynamics in the natural mineral brochantite CuSO(OH…
Magnetic structure and Ising-like antiferromagnetism in the bilayer triangular lattice compound NdZnPO
Han Ge, Tiantian Li, S. E. Nikitin +14
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 detai…
Phonon topology and winding of spectral weight in graphite
N. D. Andriushin, A. S. Sukhanov, A. N. Korshunov +3
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…
Quantum Spin Dynamics Due to Strong Kitaev Interactions in the Triangular-Lattice Antiferromagnet CsCeSe
Tao Xie, S. Gozel, Jie Xing +8
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 emplo…
Stripe magnetic order and field-induced quantum criticality in the perfect triangular-lattice antiferromagnet CsCeSe
Tao Xie, Nan Zhao, S. Gozel +13
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 an…
Thermal Evolution of Dirac Magnons in the Honeycomb Ferromagnet CrBr
S. E. Nikitin, B. Fåk, K. W. Krämer +4
CrBr is an excellent realization of the two-dimensional honeycomb ferromagnet, which offers a bosonic equivalent of graphene with Dirac magnons and topological character. We pe…
Tomonaga-Luttinger Liquid Behavior and Spinon Confinement in YbAlO
L. S. Wu, S. E. Nikitin, Z. Wang +14
Low dimensional quantum magnets are interesting because of the emerging collective behavior arising from strong quantum fluctuations. The one-dimensional (1D) S = 1/2 Heisenberg an…
Doping-induced redistribution of magnetic spectral weight in substituted hexaborides CeLaB and CeNdB
S. E. Nikitin, P. Y. Portnichenko, A. V. Dukhnenko +6
We investigate the doping-induced changes in the electronic structure of CeB on a series of substituted CeB samples ( = La, Nd) using diffuse neutron scatteri…