35 citations · 100 across the 12 of their papers we have counts for
9 papers · 1 filter
Magnetization processes and spin dynamics across field-induced phase transitions in the quasi-two-dimensional quantum magnet Cu(OH)Br
Anneke Reinold, Dirk Wulferding, Laur Peedu +13
We present magnetic-field-dependent evolution of magnetization and spin dynamics in the quasi-two-dimensional spin- magnet , consisting of alternately c…
Observation of an emergent energy scale close to dimensional reduction in a quasi-two-dimensional quantum magnet
Anneke Reinold, Laur Peedu, Kirill Amelin +19
By appropriately perturbing a critical transverse-field Ising chain away from its critical point, the system can develop a finite correlation length with a characteristic purely ma…
Quantum spin dynamics of the honeycomb magnet KCoTeO in high magnetic fields
Patrick Pilch, Laur Peedu, Urmas Nagel +6
We present terahertz spectroscopic measurements of quantum spin dynamics in the honeycomb magnet KCoTeO as a function of temperature, polarization and in an external ma…
Field and Polarization Dependent Quantum Spin Dynamics in Honeycomb Magnet NaCoTeO: Magnetic Excitations and Continuum
Patrick Pilch, Laur Peedu, Anup Kumar Bera +4
We report terahertz spectroscopic measurements of quantum spin dynamics in the spin-1/2 honeycomb magnet NaCoTeO as a function of applied magnetic field with different…
Refining magnetic interactions from the magnetic field dependence of spin-wave excitations in magnetoelectric LiFePO
L. Peedu, V. Kocsis, D. Szaller +13
We investigated the spin excitations of magnetoelectric by THz absorption spectroscopy in magnetic fields up to 33T. By studying their selection rules, we fou…
Selection rules and dynamic magnetoelectric effect of the spin waves in multiferroic BiFeO
D. G. Farkas, D. Szaller, I. Kézsmárki +9
We report the magnetic field dependence of the THz absorption and non-reciprocal directional dichroism spectra of BiFeO measured on the three principal crystal cuts for fields…
Magnetoelectric spectroscopy of spin excitations in LiCoPO4
Vilmos Kocsis, Sándor Bordács, Yusuke Tokunaga +7
We have studied spin excitations in a single-domain crystal of antiferromagnetic LiCoPO4 by THz absorption spectroscopy. By analyzing the selection rules and comparing the strength…
In-situ electric field control of THz non-reciprocal directional dichroism in the multiferroic BaCoGeO
J. Vít, J. Viirok, L. Peedu +11
Non-reciprocal directional dichroism, also called the optical-diode effect, is an appealing functional property inherent to the large class of non-centrosymmetric magnets. However,…
The Magnetoelastic Distortion of Multiferroic BiFeO in the Canted Antiferromagnetic State
Toomas Rõõm, Johan Viirok, Laur Peedu +17
Using THz spectroscopy, we show that the spin-wave spectrum of multiferroic BiFeO in its high-field canted antiferromagnetic state is well described by a spin model that violat…