147 citations · 1.3k across the 38 of their papers we have counts for
29 papers · 1 filter
Hidden magnetic order on a kagome lattice for KV3Sb5
V. Scagnoli, D. D. Khalyavin, S. W. Lovesey
KV3Sb5 has recently attracted a considerable attention, due to its low temperature superconducting properties, which are heralded by a charge density wave. The apparent presence of…
Melting of magnetic order in by fs laser pulses
Flavio Giorgianni, Max Burian, Namrata Gurung +19
NaOsO has recently attracted significant attention for the strong coupling between its electronic band structure and magnetic ordering. Here, we used time-resolved magnetic X-r…
Structurally assisted melting of excitonic correlations in 1T-TiSe2
Max Burian, Michael Porer, Jose R. L. Mardegan +16
The simultaneous condensation of electronic and structural degrees of freedom gives rise to new states of matter, including superconductivity and charge-density-wave formation. Whe…
Field-induced double spin spiral in a frustrated chiral magnet
M. Ramakrishnan, E. Constable, A. Cano +14
We report the direct observation of a magnetic-feld induced long-wavelength spin spiral modulation in the chiral compound Ba3TaFe3Si2O14. This new spin texture emerges out of a chi…
Dynamics of the photoinduced insulator-to-metal transition in a nickelate film
Vincent Esposito, Laurenz Rettig, Elisabeth M. Bothschafter +24
The control of materials properties with light is a promising approach towards the realization of faster and smaller electronic devices. With phases that can be controlled via stra…
Direct observation of electron density reconstruction at the metal-insulator transition in NaOsO3
N. Gurung, N. Leo, S. P. Collins +10
5d transition metal oxides offer new opportunities to test our understanding of the interplay of correlation effects and spin-orbit interactions in materials in the absence of a si…
The Spin-Reorientation Transition in TmFeO3
U. Staub, L. Rettig, E. M. Bothschafter +10
X-ray magnetic circular and linear dichroism (XMCD and XMLD) have been used to investigate the Fe magnetic response during the spin reorientation transition (SRT) in TmFeO3. These…
Crystal Symmetry Lowering in Chiral Multiferroic BaTaFeSiO observed by X-Ray Magnetic Scattering
M. Ramakrishnan, Y. Joly, Y. W. Windsor +8
Chiral multiferroic langasites have attracted attention due to their doubly-chiral magnetic ground state within an enantiomorphic crystal. We report on a detailed resonant soft X-r…
Ultrafast Laser-Induced Melting of Long-Range Magnetic Order in Multiferroic TbMnO3
Jeremy A. Johnson, T. Kubacka, M. C. Hoffmann +25
We performed ultrafast time-resolved near-infrared pump, resonant soft X-ray diffraction probe measurements to investigate the coupling between the photoexcited electronic system a…
Helical bunching and symmetry lowering inducing multiferroicity in Fe langasites
Laura Chaix, Rafik Ballou, Andres Cano +12
The chiral Fe-based langasites represent model systems of triangle-based frustrated magnets with a strong potential for multiferroicity. We report neutron scattering measurements f…
Multiferroic properties of o-LuMnO controlled by b-axis strain
Y. W. Windsor, S. W. Huang, Y. Hu +7
Strain is a leading candidate for controlling magnetoelectric coupling in multiferroics. Here, we use x-ray diffraction to study the coupling between magnetic order and structural…
Charge ordering transition in GdBaCo2O5: evidence of reentrant behavior
M. Allieta, M. Scavini, L. Lopresti +7
We present a detailed study on the charge ordering (CO) transition in GdBaCo2O5 system by combining high resolution synchrotron powder/single crystal diffraction with electron para…
Melting of chiral order in terbium manganate (TbMnO3) observed with resonant x-ray Bragg diffraction
S W Lovesey, V Scagnoli, M Garganourakis +3
Resonant Bragg diffraction of soft, circularly polarized x-rays has been used to observe directly the temperature dependence of chiral-order melting in a motif of Mn ions in terbiu…
Phase competitions in epitaxial PrCaMnO/LaSrMnO superlattices
H. Wadati, J. Okamoto, M. Garganourakis +5
We studied the charge-orbital ordering in the superlattice of charge-ordered insulating PrCaMnO and ferromagnetic metallic LaSrMnO by resona…
Imprinting magnetic information in manganites with X-rays
M. Garganourakis, V. Scagnoli, S. W. Huang +6
The effect of x-rays on an orbital and charge ordered epitaxial film of a PrCaMnO is presented. As the film is exposed to x-rays, the antiferromagnetic respon…
On the role of intrinsic disorder in the structural phase transition of magnetoelectric EuTiO3
Mattia Allieta, Marco Scavini, Leszek Spalek +6
Up to now the crystallographic structure of the magnetoelectric perovskite EuTiO3 was considered to remain cubic down to low temperature. Here we present high resolution synchrotro…
Origin of the large polarization in multiferroic YMnO thin films revealed by soft and hard x-ray diffraction
H. Wadati, J. Okamoto, M. Garganourakis +9
We investigated the magnetic structure of an orthorhombic YMnO3 thin film by resonant soft x-ray and hard x-ray diffraction. We observed a temperature-dependent incommensurate magn…
Triakontadipole and high-order dysprosium multipoles in the antiferromagnetic phase of DyBC
A. J. Princep, A. M. Mulders, U. Staub +5
Resonant soft x-ray Bragg diffraction at the Dy M edges has been used to study Dy multipoles in the combined magnetic and orbitally ordered phase of DyBC. The analy…
Doping and temperature dependence of Mn 3d states in A-site ordered manganites
M. García-Fernández, U. Staub, Y. Bodenthin +7
We present a systematic study of the electronic structure in A-site ordered manganites as function of doping and temperature. The energy dependencies observed with soft x-ray reson…
Experimental evidence of anapolar moments in the antiferromagnetic insulating phase of V2O3 obtained from x-ray resonant Bragg diffraction
J. Fernandez-Rodriguez, V. Scagnoli, C. Mazzoli +7
We have investigated the antiferromagnetic insulating phase of the Mott-Hubbard insulator VO by resonant x-ray Bragg diffraction at the vanadium K-edge. Combining the infor…
EuFe_2As_2 magnetic structure determination
Javier Herrero-Martin, Valerio Scagnoli, Claudio Mazzoli +8
Magnetic resonant X ray scattering experiments have been performed on a single crystal of EuFe_2As_2 at the Eu L_3 absorption edge. This has permitted us to determine for the first…
Direct observation of charge order and orbital glass state in multiferroic LuFe2O4
A. M. Mulders, S. M. Lawrence, U. Staub +6
Geometrical frustration of the Fe ions in LuFe2O4 leads to intricate charge and magnetic order and a strong magnetoelectric coupling. Using resonant x-ray diffraction at the Fe K e…
Magnetic and electronic Co states in layered cobaltate GdBaCo2O5.5-x
M. Garcia-Fernandez, V. Scagnoli, U. Staub +11
We have performed non-resonant x-ray diffraction, resonant soft and hard x-ray magnetic diffraction, soft x-ray absorption and x-ray magnetic circular dichroism measurements to cla…
Direct observation of oxygen superstructures in manganites
S. Grenier, K. J. Thomas, J. P. Hill +8
We report the observation of superstructures associated with the oxygen 2p-states in two prototypical manganites using x-ray diffraction at the oxygen K-edge. We determine the natu…