368 citations · 771 across the 18 of their papers we have counts for
16 papers · 1 filter
Spinon excitations and spin correlations in the one-dimensional quantum magnet -VOSO probed by Raman spectroscopy
Dirk Wulferding, Diana Lucia Quintero-Castro, Pontus Laurell +3
Fractionalized excitations such as spinons and anyons have emerged as a central theme in condensed matter physics with broad implications for superconductivity, quantum statistics,…
One-dimensional magnetism in synthetic Pauflerite, -VOSO
Diana Lucia Quintero-Castro, Gøran J. Nilsen, Katrin Meier-Kirchner +7
We have synthesized single-crystal samples of -VOSO and fully characterized their magnetic properties. Our magnetic susceptibility, high field magnetization and powder inela…
Localized-delocalized crossover of spin-carriers and magnetization reversal in CoVO
Abhijit Bhat Kademane, Churna Bhandari, Durga Paudyal +10
Neutron diffraction, magnetization and muon spin relaxation measurements, supplemented by density functional theory (DFT) calculations are employed to unravel temperature-driven ma…
Neutron diffraction of field-induced magnon condensation in the spin-dimerized antiferromagnet SrCrO
Alsu Gazizulina, Diana Lucia Quintero-Castro, Zhe Wang +11
In this work, we investigate the evolution and settling of magnon condensation in the spin-1/2 dimer system SrCrO using a combination of magnetostriction in pulse…
Crystal field effects in the zig-zag chain compound SrTmO
A. Bhat Kademane, D. L. Quintero-Castro, K. Siemensmeyer +6
The single ion properties of the zig-zag chain compound SrTmO have been investigated using heat capacity, magnetic susceptibility, magnetization, inelastic neutron scatteri…
Precise control of magnetic properties in SrIrO epitaxial thin films by variation of strain and thin film thickness
Stephan Geprägs, Björn Erik Skovdal, Monika Scheufele +11
We report on a comprehensive investigation of the effects of strain and film thickness on the structural and magnetic properties of epitaxial thin films of the prototypal $J_\mathr…
Tuning the orbital-lattice fluctuations in the mixed spin-dimer system BaSrCrO
Alsu Gazizulina, Diana Lucia Quintero-Castro, Dirk Wulferding +4
In CrO, where = Sr or Ba, the Cr ions surrounded by oxygen ions in a tetrahedral coordination are Jahn-Teller active. The Jahn-Teller distortion leads…
Spinon confinement in a quasi one dimensional anisotropic Heisenberg magnet
A. K. Bera, B. Lake, F. H. L. Essler +6
Confinement is a process by which particles with fractional quantum numbers bind together to form quasiparticles with integer quantum numbers. The constituent particles are confine…
The nature of spin excitations in the one-third magnetization plateau phase of BaCoSbO
Y. Kamiya, L. Ge, Tao Hong +10
Magnetization plateaus in quantum magnets---where bosonic quasiparticles crystallize into emergent spin superlattices---are spectacular yet simple examples of collective quantum ph…
Evidence for a spinon Fermi surface in a triangular lattice quantum spin liquid candidate
Yao Shen, Yao-Dong Li, Hongliang Wo +16
A quantum spin liquid is an exotic quantum state of matter in which spins are highly entangled and remain disordered down to zero temperature. Such a state of matter is potentially…
Finite-temperature scaling of spin correlations in an experimental realization of the one-dimensional Ising quantum critical point
M. Hälg, D. Hüvonen, T. Guidi +5
Inelastic neutron scattering is used to study the finite-temperature scaling behavior of the local dynamic structure factor in the quasi-one-dimensional quantum antiferromagnet NTE…
High-field spectroscopy of singlet-triplet transitions in the spin-dimer systems Sr3Cr2O8 and Ba3Cr2O8
Zhe Wang, D. Kamenskyi, O. Cépas +14
Magnetic excitations in the isostructural spin-dimer systems Sr3Cr2O8 and Ba3Cr2O8 are probed by means of high-field electron spin resonance at sub-terahertz frequencies. Three typ…
Asymmetric Thermal Lineshape Broadening in a Gapped 3-Dimensional Antiferromagnet - Evidence for Strong Correlations at Finite Temperature
D. L. Quintero-Castro, B. Lake, A. T. M. N. Islam +6
It is widely believed that magnetic excitations become increasingly incoherent as temperature is raised due to random collisions which limit their lifetime. This picture is based o…
Coupled spin-lattice fluctuations in a compound with orbital degrees of freedom: the Cr based dimer system Sr3Cr2O8
Dirk Wulferding, Peter Lemmens, Kwang-Yong Choi +5
We report on an extended fluctuation regime in the spin dimer system Sr3Cr2O8 based on anomalies in Raman active phonons and magnetic scattering. The compound has two characteristi…
Orbital fluctuations and orbital order below the Jahn-Teller transition in Sr3Cr2O8
Zhe Wang, M. Schmidt, A. Günther +10
We report on the magnetic and phononic excitation spectrum of Sr3Cr2O8 determined by THz and infrared (IR) spectroscopy, and electron spin resonance (ESR) measurements across the J…
Magnetic excitations of the gapped quantum spin dimer antiferromagnet SrCrO
Diana L. Quintero-Castro, Bella Lake, Elisa M. Wheeler +8
SrCrO consist of a lattice of spin-1/2 Cr ions, which form hexagonal bilayers and which are paired into dimers by the dominant antiferromagnetic intrabilay…