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LMX: Laboratory for Multiscale materials eXperiments

The Laboratory for Multiscale materials eXperiments (LMX) focusses on designing novel functional materials in poly- and single crystalline form, as thin films and as multilayers. Read more about LMX
 

News

14 décembre 2022
claire_donnelly_2022.jpeg

IEEE Magnetics Society Early Career Award 2023

The IEEE Magnetics Society 2023 Early Career Award goes to Claire Donnelly, a former member of LMX and the Mesoscopic Systems Group, for her excellent work on developing x-ray techniques for imaging magnetic structures in three dimensions.

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1 décembre 2022
Lippert 2022

Appointment of Thomas Lippert as new head of the Laboratory for Multiscale Materials Experiments (LMX)

Starting 1. December 2022, Prof. Dr. Dr. Thomas Lippert will be the new head of the Laboratory for Multiscale Materials Experiments (LMX). He follows Prof. Dr. Laura Heyderman, our first laboratory head who successfully formed and established the LMX in the PSI landscape as a Centre of Materials.

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Scientific Highlights

15 septembre 2022
Tseng et al

Crossover of high-energy spin fluctuations from collective triplons to localized magnetic excitations in Sr14−xCaxCu24O41 ladder

We studied the magnetic excitations in the quasi-one-dimensional (q-1D) ladder subsystem of Sr14−xCaxCu24O41 (SCCO) using Cu L3-edge resonant inelastic X-ray scattering (RIXS). By comparing momentum-resolved RIXS spectra with high (x = 12.2) and without (x = 0) Ca content, we track the evolution of the magnetic excitations from collective two-triplon (2 T) excitations (x = 0) to weakly- dispersive gapped modes at an energy of 280 meV (x = 12.2)...

 

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3 mai 2022
Mielke et al

Low-temperature magnetic crossover in the topological kagome magnet TbMn6Sn6

Magnetic topological phases of quantum matter are an emerging frontier in physics and materials science, of which kagome magnets appear as a highly promising platform. Here, we explore magnetic correlations in the recently identified topological kagome system TbMn6Sn6 using muon spin rotation, combined with local field analysis and neutron diffraction. Our studies identify an out-of-plane ferrimagnetic structure with slow magnetic fluctuations which exhibit a critical slowing down below T*C1 ≃ 120 K and finally freeze into static patches with ideal out-of-plane order below TC1 ≃ 20 K....

 

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19 avril 2022
John et al

Reconfigurable halide perovskite nanocrystal memristors for neuromorphic computing

Many in-memory computing frameworks demand electronic devices with specific switching characteristics to achieve the desired level of computational complexity. Existing memristive devices cannot be reconfigured to meet the diverse volatile and non-volatile switching requirements, and hence rely on tailored material designs specific to the targeted application, limiting their universality. “Reconfigurable memristors” that combine both ionic diffusive and drift mechanisms could address these limitations, but they remain elusive. Here we present a reconfigurable halide perovskite nanocrystal memristor that achieves on-demand switching between diffusive/volatile and drift/non-volatile modes by controllable electrochemical reactions.

 

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4 avril 2022
Blick in die magnetische Zukunft

A look into the magnetic future

Media Releases Research Using Synchrotron Light Materials Research

PSI researchers are the first to observe a specific behaviour of magnetic ice.

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25 mars 2022
Shang et al

Spin-triplet superconductivity in Weyl nodal-line semimetals

Topological semimetals are three dimensional materials with symmetry-protected massless bulk excitations. As a special case, Weyl nodal-line semimetals are realized in materials having either no inversion or broken time-reversal symmetry and feature bulk nodal lines. The 111-family, including LaNiSi, LaPtSi and LaPtGe materials (all lacking inversion symmetry), belongs to this class. Here, by combining muon-spin rotation and relaxation with thermodynamic measurements, we find that these materials exhibit a fully- gapped superconducting ground state, while spontaneously breaking time-reversal symmetry at the superconducting transition.

 

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Laboratory for Multiscale Materials Experiments (LMX)
Paul Scherrer Institut
5232 Villigen PSI
Switzerland

Telephone: +41 56 310 5538
E-mail: margit.braun-shea@psi.ch (Secretary)

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