Rare-earths become water-repellent only as they age

Surfaces that have been coated with rare earth oxides develop water-repelling properties only after contact with air. Even at room temperature, chemical reactions begin with hydrocarbons in the air. In the journal Scientific ...

Metamaterial: Mail armor inspires physicists

The Middle Ages certainly were far from being science-friendly: Whoever looked for new findings off the beaten track faced the threat of being burned at the stake. Hence, the contribution of this era to technical progress ...

Einstein in an iron crystal

Tiny relativistic effects form the basis of the functionalities in modern technology, as exemplified in magnetic hard disks and data storage media. Now for the first time, scientists have directly observed features in an ...

Scientists unveil fundamental properties of spin Seebeck effect

Thermoelectric effects are a fundamental building block for the conception and development of new processes for information processing. They enable to re-use waste heat obtained in different processes for the operation of ...

Atomic bits despite zero-point energy?

So-called "zero-point energy" is a term familiar to some cinema lovers or series fans; in the fictional world of animated films such as "The Incredibles" or the TV series "Stargate Atlantis", it denotes a powerful and virtually ...

Physicists observe behavior of quantum materials in curved space

Light and matter are typically viewed as distinct entities that follow their own, unique rules. Matter has mass and typically exhibits interactions with other matter, while light is massless and does not interact with itself. ...

Spinning better electronic devices

A team of researchers, led by a group at the University of California, Riverside, have demonstrated for the first time the transmission of electrical signals through insulators in a sandwich-like structure, a development ...

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