Magnetic Tunnel Junctions are a type of tunnel junction where the electrodes are ferromagnetic materials, such as iron, cobalt, or their alloys. The tunneling current in an MTJ depends on the relative magnetization orientations of the electrodes, a phenomenon known as tunnel magnetoresistance (TMR). MTJs are the core elements of magnetic random-access memory (MRAM) and spin-transfer torque ...

PENGs use piezoelectric materials, such as zinc oxide nanowires, lead zirconate titanate, or polyvinylidene fluoride (PVDF) films. When these materials experience mechanical stress or pressure, their crystal structure changes, leading to a charge separation and, thus, an electric charge generation.

4 天之前 · By analyzing the 'long ringdown' phase - a pure-tone signal emitted by the post-merger remnant - scientists have found a strong correlation between the signal's properties and the equation of state of neutron-star matter.

Explore our comprehensive A-Z glossary of biotechnologies, perfect for students, researchers, and professionals looking for detailed definitions and applications in biotech.

Dec 31, 2024: New graphene aerogel combines unprecedented stiffness and elasticity for impact protection (Nanowerk Spotlight) The ability to absorb and dissipate impact energy is crucial for protective materials in transportation and aerospace.Traditional materials face a fundamental limitation: they can be either stiff to resist deformation or elastic to absorb impact, but not both.

Nanophysics is a branch of physics that focuses on the study of physical phenomena and properties of matter at the nanoscale, typically in the range of 1 to 100 nanometers.It encompasses the investigation of the unique behavior and interactions of particles, such as electrons, atoms, and molecules, when confined to nanoscale dimensions.

Nanofiltration is a type of membrane filtration process that is used to separate molecules based on size. It is one of the four membrane technologies that utilize pressure to effect separation of contaminants from water streams but it is more selective in the types of molecules it can filter out.

Key Concepts in Nanoscience. Quantum Effects: At the nanoscale, quantum size effects become significant, leading to unique electrical, optical, and magnetic properties that are not observable in bulk materials.; Surface Area to Volume Ratio: Nanoscale materials have a much larger surface area relative to their volume, which can significantly …

The terms nanofabrication and nanomanufacturing are used to describe the creation of functional and complex nanoscale structures in various industries, including medical, photonics, electronics, and energy. However, the term nanomanufacturing is often associated with …

Quantum wells are nanoscale structures that confine the motion of electrons or holes in one dimension, while allowing free movement in the other two dimensions. They are formed by sandwiching a thin layer of a semiconductor material between two layers of a wider bandgap semiconductor. The ...