921 citations · 10.1k across the 159 of their papers we have counts for
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Atomic-scale coexistence of short-range magnetic order and superconductivity in FeSeTe
Ramakrishna Aluru, Haibiao Zhou, Antoine Essig +5
The ground state of the parent compounds of many high temperature superconductors is an antiferromagnetically (AFM) ordered phase, where superconductivity emerges when the AFM phas…
Johari-Goldstein relaxation far below Tg: Experimental evidence for the Gardner transition in structural glasses?
K. Geirhos, P. Lunkenheimer, A. Loidl
Experimental evidence for the Gardner transition, theoretically predicted to arise deep in the glassy state of matter, is scarce. At this transition, the energy landscape sensed by…
Weak ferromagnetism and glassy state in kappa-(BEDT-TTF)2Hg(SCN)2Br
M. Hemmida, H. -A. Krug von Nidda, B. Miksch +8
Since the first observation of weak ferromagnetism in the charge-transfer salt kappa-(BEDT-TTF)2-Cu[N(CN)2]Cl [U. Welp et al., Phys. Rev. Lett. 69, 840 (1992)], no further evidence…
Complex nature of magnetic field-induced ferroelectricity in GdCrTiO5
T. Basu, D. T. Adroja, F. Kolb +8
This work shows an unconventional route for spin-driven ferroelectricity originating from a metastable magnetic field-induced canting of chromium sublattice in the presence of gado…
Magnetic Excitations and Continuum of a Field-Induced Quantum Spin Liquid in -RuCl
Zhe Wang, S. Reschke, D. Hüvonen +6
We report on terahertz spectroscopy of quantum spin dynamics in -RuCl, a system proximate to the Kitaev honeycomb model, as a function of temperature and magnetic field. An…
Experimental Observation of Bethe Strings
Zhe Wang, Jianda Wu, Wang Yang +8
Almost one century ago, string states - complex bound states (Wellenkomplexe) of magnetic excitations - have been predicted to exist in one-dimensional quantum magnets and since th…
Excitations and relaxation dynamics in multiferroic GeV4S8 studied by THz and dielectric spectroscopy
S. Reschke, Zhe Wang, F. Mayr +4
We report on THz time-domain spectroscopy on multiferroic GeV4S8, which undergoes orbital ordering at a Jahn-Teller transition at 30.5 K and exhibits antiferromagnetic order below…
Berezinskii-Kosterlitz-Thouless Type Scenario in Molecular Spin Liquid CrO
Mamoun Hemmida, Hans-Albrecht Krug von Nidda, Vladimir Tsurkan +1
The spin relaxation in chromium spinel oxides CrO ( Mg, Zn, Cd) is investigated in the paramagnetic regime by electron spin resonance (ESR). The temperature depe…
Anisotropic Exchange in
Zakir Seidov, Tatiana P. Gavrilova, Rushana M. Eremina +4
We investigate the magnetic properties of the multiferroic quantum-spin system LiCuO by electron spin resonance (ESR) measurements at - and -band frequencies in a wid…
Variation of ionic conductivity in a plastic-crystalline mixture
D. Reuter, C. Geiß, P. Lunkenheimer +1
Ionically-conducting plastic crystals are possible candidates for solid-state electrolytes in energy-storage devices. Interestingly, the admixture of larger molecules to the most p…
Relaxation dynamics of modulated magnetic phases in skyrmion host GaV4S8: an ac magnetic susceptibility study
Ádám Butykai, Sándor Bordács, Lászlo F. Kiss +4
We report on the slow magnetization dynamics observed upon the magnetic phase transitions of GaV4S8, a multiferroic compound featuring a long-ranged cycloidal magnetic order and a…
Dielectric study on mixtures of ionic liquids
E. Thoms, P. Sippel, D. Reuter +3
Ionic liquids are promising candidates for electrolytes in energy-storage systems. We demonstrate that mixing two ionic liquids allows to precisely tune their physical properties,…
Characteristics of ferroelectric-ferroelastic domains in N{é}el-type skyrmion host GaVS
Ádám Butykai, Sándor Bordács, István Kézsmárki +6
GaVS is a multiferroic semiconductor hosting N{é}el-type magnetic skyrmions dressed with electric polarization. At T = 42K, the compound undergoes a structural phase tr…
Magnetodielectric coupling in a non-perovskite metal-organic framework
Tathamay Basu, A. Jesche, B. Bredenkotter +5
Multiferroicity and magnetodielectric coupling in metal-organic-frameworks (MOFs) is rare and so far restricted mainly to formate-based systems with perovskite structure. In the co…
Polar and magnetic order in GaV4Se8
E. Ruff, A. Butykai, K. Geirhos +6
In the present work, we provide results from specific heat, magnetic susceptibility, dielectric constant, ac conductivity, and electrical polarization measurements performed on the…