NEAT starts user operation
Gerrit Günther und Veronka Grzymek help Zhilun Lu with the experiment. © HZB
The newly built time of flight spectrometre NEAT has welcomed its first users: Jie Ma from Shanghai Jiao Tong University and his colleague Zhilun Lu examined magnetic excitations in crystalline samples and enjoyed fast data rate and high flexibility of instrumental configurations. NEAT team is now looking forward to further new studies and user experiments!
The scientists from Shanghai did find what they were looking for, after only 60 minutes of data collection: “Our experiment was very successful and we hope to publish the results soon”, Zhilun Lu said.
Neutron time-of-flight spectrometer NEAT has a long history of successful application to study dynamics and function on very broad time and space domains ranging from 10-14 – 10-10 seconds and from 0.05 to up to about 5 nanometers respectively. Started originally in 1995 as NEAT I, NEAT II has been fully rebuild in order to address the needs of the user community for more powerful instruments. The upgrade started in 2010 after a rigorous internal and external selection process and resulted in 70 fold higher flux and a number of new instrumental capabilities including an improved angular resolution, larger accessible wavelength range and a design suited for high magnetic field experiments up to 15 Tesla.
- Alternating currents for alternative computing with magnetsA new study conducted at the University of Vienna, the Max Planck Institute for Intelligent Systems in Stuttgart, and the Helmholtz Centers in Berlin and Dresden takes an important step in the challenge to miniaturize computing devices and to make them more energy-efficient. The work published in the renowned scientific journal Science Advances opens up new possibilities for creating reprogrammable magnonic circuits by exciting spin waves by alternating currents and redirecting these waves on demand. The experiments were carried out at the Maxymus beamline at BESSY II.
- BESSY II: Heterostructures for SpintronicsSpintronic devices work with spin textures caused by quantum-physical interactions. A Spanish-German collaboration has now studied graphene-cobalt-iridium heterostructures at BESSY II. The results show how two desired quantum-physical effects reinforce each other in these heterostructures. This could lead to new spintronic devices based on these materials.
- Langbeinites show talents as 3D quantum spin liquidsA 3D quantum spin liquid has been discovered in the vicinity of a member of the langbeinite family. The material's specific crystalline structure and the resulting magnetic interactions induce an unusual behaviour that can be traced back to an island of liquidity. An international team has made this discovery with experiments at the ISIS neutron source and theoretical modelling on a nickel-langbeinite sample.