Search results for crystal

Planetary Sciences Jun 26, 2024

New study reveals comet airburst evidence from 12,800 years ago

Researchers continue to expand the case for the Younger Dryas Impact hypothesis. The idea proposes that a fragmented comet smashed into the Earth's atmosphere 12,800 years ago, causing a widespread climatic shift that, among ...

Optics & Photonics Jun 26, 2024

Time-compression in electron microscopy: Terahertz light controls and characterizes electrons in space and time

Scientists at the University of Konstanz in Germany have advanced ultrafast electron microscopy to unprecedented time resolution. Reporting in Science Advances, the research team presents a method for the all-optical control, ...

Optics & Photonics Jun 26, 2024

Engineers produce the world's first practical Titanium-sapphire laser on a chip

As lasers go, those made of Titanium-sapphire (Ti:sapphire) are considered to have "unmatched" performance. They are indispensable in many fields, including cutting-edge quantum optics, spectroscopy, and neuroscience. But ...

Earth Sciences Jun 26, 2024

Researchers determine high-pressure silica mineral in the deep Earth is anhydrous

In the Earth's subduction zones, water is transported into the deep mantle by nominally anhydrous minerals (NAMs) and water-bearing minerals in oceanic plates that react with seawater. Therefore, determination of the stability ...

Condensed Matter Jun 25, 2024

Researchers discover new flat electronic bands, paving way for advanced quantum materials

In a study published in Nature Communications, a team of scientists led by Rice University's Qimiao Si predicts the existence of flat electronic bands at the Fermi level, a finding that could enable new forms of quantum computing ...

Materials Science Jun 25, 2024

Not all calcite crystals perfect; synthesis methods can alter internal structure, affect chemical reactivity

When looking at calcite under a microscope, a scientist would immediately recognize the crystalline form of calcium carbonate by its rhombohedral appearance. That is, calcite is shaped like a distorted cube. One of Earth's ...

Biochemistry Jun 25, 2024

Researchers develop polymer fibers that can facilitate controlled, local drug delivery

Medical products such as ointments or syringes reach their limits when it comes to delivering medication locally—and above all in a controlled manner over a longer period of time. Empa researchers are therefore developing ...

Nanophysics Jun 25, 2024

Researchers use gold membrane to coax secrets out of surfaces

Using a special wafer-thin gold membrane, ETH researchers have made it significantly easier to study surfaces. The membrane makes it possible to measure properties of surfaces that are inaccessible to conventional methods.

Quantum Physics Jun 25, 2024

Quantum annealer improves understanding of quantum many-body systems

Physicists have long been pursuing the idea of simulating quantum particles with a computer that is itself made up of quantum particles. This is exactly what scientists at Forschungszentrum Jülich have done together with ...

Nanomaterials Jun 25, 2024

New study unveils formation secrets of tiny rare earth elements

Researchers from Trinity College Dublin's School of Natural Sciences have revealed a novel route to the formation of bastnäsite, a crucial mineral for the extraction of rare earth elements (REEs). Their work offers promise ...

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