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14 papers · 2 filters
Spin pseudogap in the chain material SrCuO with impurities
G. Simutis, S. Gvasaliya, N. S. Beesetty +14
The low energy magnetic excitation spectrum of the Heisenberg antiferromagnetic chain system SrCuO with Ni- and Ca-impurities is studied by neutron spectroscopy.…
Spontaneous structural distortion of metallic Shastry-Sutherland system DyB4 by quadrupole-spin-lattice coupling
Hasung Sim, Seongsu Lee, Kun-Pyo Hong +10
DyB4 has a two-dimensional Shastry-Sutherland (Sh-S) lattice with strong Ising character of the Dy ions. Despite the intrinsic frustrations, surprisingly, it undergoes two successi…
Spin wave excitations in the pyrovanadate alpha-Cu2V2O7
A. Banerjee, J. Sannigrahi, S. Bhowal +5
The pyrovanadate alpha-Cu2V2O7 belongs to the orthorhombic (Fdd2) class of crystals with noncentrosymmetric crystal structure. Recently, the compound has been identified to be a ma…
Magnetodielectric detection of magnetic quadrupole order in Ba(TiO)Cu(PO) with CuO square cupolas
K. Kimura, P. Babkevich, M. Sera +12
In vortex-like spin arrangements, multiple spins can combine into emergent multipole moments. Such multipole moments have broken space-inversion and time-reversal symmetries, and c…
Revealing the role of electrons and phonons in the ultrafast recovery of charge density wave correlations in 1-TiSe
C. Monney, M. Puppin, C. W. Nicholson +8
Using time- and angle-resolved photoemission spectroscopy with selective near- and mid-infrared photon excitations, we investigate the femtosecond dynamics of the charge density wa…
Magnon-phonon coupling and two-magnon continuum in two-dimensional triangular antiferromagnet CuCrO2
Kisoo Park, Joosung Oh, Jonathan C. Leiner +4
CuCrO2 is a manifestation of a two-dimensional triangular antiferromagnet which exhibits an incommensurate noncollinear magnetic structure similar to a classical 120 degree orderin…