Search Results - "Böni, P"
-
1
Skyrmion Lattice in a Chiral Magnet
Published in Science (American Association for the Advancement of Science) (13-02-2009)“…Skyrmions represent topologically stable field configurations with particle-like properties. We used neutron scattering to observe the spontaneous formation of…”
Get full text
Journal Article -
2
Spin Transfer Torques in MnSi at Ultralow Current Densities
Published in Science (American Association for the Advancement of Science) (17-12-2010)“…Spin manipulation using electric currents is one of the most promising directions in the field of spintronics. We used neutron scattering to observe the…”
Get full text
Journal Article -
3
Non-Fermi Liquid Metal Without Quantum Criticality
Published in Science (American Association for the Advancement of Science) (29-06-2007)“…A key question in condensed matter physics concerns whether pure three-dimensional metals can always be described as Fermi liquids. Using neutron Larmor…”
Get full text
Journal Article -
4
Topological Hall effect in the A phase of MnSi
Published in Physical review letters (08-05-2009)“…Recent small angle neutron scattering suggests that the spin structure in the A phase of MnSi is a so-called triple-Q state, i.e., a superposition of three…”
Get full text
Journal Article -
5
Band Structure of Helimagnons in MnSi Resolved by Inelastic Neutron Scattering
Published in Physical review letters (28-08-2015)“…A magnetic helix realizes a one-dimensional magnetic crystal with a period given by the pitch length λh. Its spin-wave excitations-the helimagnons-experience…”
Get full text
Journal Article -
6
Topological magnon band structure of emergent Landau levels in a skyrmion lattice
Published in Science (American Association for the Advancement of Science) (04-03-2022)“…The motion of a spin excitation across topologically nontrivial magnetic order exhibits a deflection that is analogous to the effect of the Lorentz force on an…”
Get full text
Journal Article -
7
Fluctuation-induced first-order phase transition in Dzyaloshinskii-Moriya helimagnets
Published in Physical review. B, Condensed matter and materials physics (08-04-2013)Get full text
Journal Article -
8
Visualizing the morphology of vortex lattice domains in a bulk type-II superconductor
Published in Nature communications (02-11-2015)“…Alike materials in the solid state, the phase diagram of type-II superconductors exhibit crystalline, amorphous, liquid and spatially inhomogeneous phases. The…”
Get full text
Journal Article -
9
Neutron depolarization imaging of the hydrostatic pressure dependence of inhomogeneous ferromagnets
Published in Applied physics letters (16-05-2016)“…The investigation of fragile and potentially inhomogeneous forms of ferromagnetic order under extreme conditions, such as low temperatures and high pressures,…”
Get full text
Journal Article -
10
The multi-purpose three-axis spectrometer (TAS) MIRA at FRM II
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-02-2018)“…The cold-neutron three-axis spectrometer MIRA is an instrument optimized for low-energy excitations. Its excellent intrinsic Q-resolution makes it ideal for…”
Get full text
Journal Article -
11
Long-range crystalline nature of the Skyrmion lattice in MnSi
Published in Physical review letters (18-11-2011)“…We report small angle neutron scattering of the Skyrmion lattice in MnSi using an experimental setup that minimizes the effects of demagnetizing fields and…”
Get full text
Journal Article -
12
New diluted ferromagnetic semiconductor with Curie temperature up to 180 K and isostructural to the ‘122’ iron-based superconductors
Published in Nature communications (2013)“…Diluted magnetic semiconductors have received much attention due to their potential applications for spintronics devices. A prototypical system (Ga,Mn)As has…”
Get full text
Journal Article -
13
The longitudinal neutron resonant spin echo spectrometer RESEDA
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-09-2019)“…The instrumental layout and technical realisation of the neutron resonant spin echo (NRSE) spectrometer RESEDA at the Heinz Maier-Leibnitz Zentrum (MLZ) in…”
Get full text
Journal Article -
14
Critical spin-flip scattering at the helimagnetic transition of MnSi
Published in Physical review. B, Condensed matter and materials physics (19-05-2014)Get full text
Journal Article -
15
Non-reciprocal magnons in non-centrosymmetric MnSi
Published in AIP advances (01-10-2018)“…Using two cold-neutron triple-axis spectrometers we have succeeded in fully mapping out the field-dependent evolution of the non-reciprocal magnon dispersion…”
Get full text
Journal Article -
16
Phase separation and suppression of critical dynamics at quantum phase transitions of MnSi and (Sr1−xCax)RuO3
Published in Nature physics (01-01-2007)“…Quantum phase transitions (QPTs) at zero temperature are generally studied by means of pressure or composition tuning. Volume-integrated probes such as neutron…”
Get full text
Journal Article -
17
Morphology of the superconducting vortex lattice in ultrapure niobium
Published in Physical review letters (03-04-2009)“…The morphology of the superconducting flux line lattice (FLL) of Nb comprises gradual variations with various lock-in transitions and symmetry breaking…”
Get full text
Journal Article -
18
Focusing adaptive-optics for neutron spectroscopy at extreme conditions
Published in Applied physics letters (14-12-2015)“…Neutron Spectroscopy employing extreme-conditions sample environments is nowadays a crucial tool for the understanding of fundamental scientific questions as…”
Get full text
Journal Article -
19
Phase separation and suppression of critical dynamics at quantum phase transitions of MnSi and (Sr 1− x Ca x )RuO 3
Published in Nature physics (25-01-2007)Get full text
Journal Article -
20
Compact turnkey focussing neutron guide system for inelastic scattering investigations
Published in Applied physics letters (21-12-2015)“…We demonstrate the performance of a compact neutron guide module which boosts the intensity in inelastic neutron scattering experiments by approximately a…”
Get full text
Journal Article