Unconventional piezoelectricity in ferroelectric hafnia

Hafnium oxide thin films are a fascinating class of materials with robust ferroelectric properties in the nanometer range. While the ferroelectric behavior is extensively studied, results on piezoelectric effects have so ...

Engineers work on new material for computer chips

The amount of energy used for computing is climbing at an exponential rate. Business intelligence and consulting firm Enerdata reports that information, communication and technology accounts for 5% to 9% of total electricity ...

Physicists create device for imitating biological memory

Researchers from the Moscow Institute of Physics and Technology have created a device that acts like a synapse in the living brain, storing information and gradually forgetting it when not accessed for a long time. Known ...

All-in-one transparent transistors

Small tweaks in component ratios generate electronically different layers from the same material to create transparent transistors.

Nanosized ferroelectrics become a reality

Using ferroelectricity instead of magnetism in computer memory saves energy. If ferroelectric bits were nanosized, this would also save space. But conventional wisdom dictates that ferroelectric properties disappear when ...

'Negative capacitance' could bring more efficient transistors

Researchers have experimentally demonstrated how to harness a property called negative capacitance for a new type of transistor that could reduce power consumption, validating a theory proposed in 2008 by a team at Purdue ...

Oxygen vacancy supported memory

A non-volatile memory keeping its digital information without power and working at the same time at the ultrahigh speed of today's dynamic random access memory (DRAM) – that is the dream of materials scientists of TU Darmstadt.

Chemists create nanoparticles for safe imaging of tumors

Chemists from Russia and Switzerland created biosafe luminescent nanoparticles for imaging tumors and blood vessels damaged by heart attack or stroke. The particles are made of hafnium oxide that is used for intravenous injection, ...

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