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In the trap: New method for cooling charged particles

System consisting of two Penning traps connected to an electrical resonant circuit transmits the cooling power of laser-cooled ions

27-Aug-2021

For the first time, physicists have succeeded in successfully realizing a new method for cooling protons using laser-cooled ions - in this case beryllium ions. The innovative feature of the new system is that the two particle types are located in spatially separated traps. This means it is now ...

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Wafer-thin nanopaper changes from firm to soft at the touch of a button

Bioinspired cellulose nanofibrils can be controlled by electricity

25-Mar-2021

Materials science likes to take nature and the special properties of living beings that could potentially be transferred to materials as a model. A research team led by chemist Professor Andreas Walther of Johannes Gutenberg University Mainz (JGU) has succeeded in endowing materials with a ...

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High-tech start-ups benefit from Twitter hype

Study shows correlation between Twitter sentiment and the valuation of start-ups by venture capitalists

18-Feb-2021

The short message service Twitter has played a prominent role in US politics in recent weeks and months and attracted a lot of attention. Even in business, Twitter users' tweets are being closely followed and used as a basis for decision-making. A new study shows that venture capitalists can also ...

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Synthesizing valuable chemicals from contaminated soil

Researchers use electrolysis to produce dichloro and dibromo compounds in a safer and more environmentally friendly manner

01-Feb-2021

Scientists at Johannes Gutenberg University Mainz (JGU) and ETH Zurich have developed a process to produce commodity chemicals in a much less hazardous way than was previously possible. Such commodity chemicals represent the starting point for many mass-produced products in the chemical industry, ...

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Danila Barskiy receives Sofja Kovalevskaja Award to develop low-cost portable spectroscopic devices

New approaches to promote the use of nuclear magnetic resonance spectroscopy for analysis in chemistry, biology, and medicine

24-Sep-2020

The diverse work of Mainz-based physicists in the field of nuclear magnetic resonance is being boosted by a new highly application-oriented approach: In October 2020, Dr. Danila Barskiy will join Johannes Gutenberg University Mainz (JGU) to set up a group focusing on nuclear magnetic resonance ...

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New ‘super light source’ should allow fascinating insights into atoms

‘Gamma Factory’ will enable not only breakthroughs in spectroscopy but also novel ways of testing fundamental symmetries of nature

24-Jul-2020

The ‘Gamma Factory initiative’ – an international team of scientists – is currently exploring a novel research tool: They propose to develop a source of high-intensity gamma rays using the existing accelerator facilities at CERN. To do this, specialized ion beams will be circulated in the SPS and ...

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New NMR method enables monitoring of chemical reactions in metal containers

Analysis of heterogeneous samples in metal containers using zero- to ultralow-field NMR spectroscopy

20-Jul-2020

Nuclear magnetic resonance (NMR) is employed in a wide range of applications. In chemistry, nuclear magnetic resonance spectroscopy is in standard use for the purposes of analysis, while in the medical field, magnetic resonance imaging (MRI) is used to see structures and metabolism in the body. ...

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The broken mirror: Can parity violation in molecules finally be measured?

Scientists propose a promising way to detect parity violation in molecules for the first time

05-Jun-2020

Scientists have long tried to experimentally demonstrate a certain symmetry property of the weak interaction - parity violation - in molecules. So far, this has not been possible. A new interdisciplinary effort led by a research group at the at the PRISMA+Cluster of Excellence at Johannes ...

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New simple method for measuring the state of lithium-ion batteries

New technique for measuring the charge state, defects, and capacity losses of rechargeable batteries using atomic magnetometry

13-May-2020

Rechargeable batteries are at the heart of many new technologies involving, for example, the increased use of renewable energies. More specifically, they are employed to power electric vehicles, cell phones, and laptops. Scientists at Johannes Gutenberg University Mainz (JGU) and the Helmholtz ...

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New devices based on rust could reduce excess heat in computers

Physicists explore long-distance information transmission in antiferromagnetic iron oxide

14-Sep-2018

Scientists have succeeded in observing the first long-distance transfer of information in a magnetic group of materials known as antiferromagnets. These materials make it possible to achieve computing speeds much faster than existing devices. Conventional devices using current technologies have ...

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