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  • Spinning, twisted light could power next-generation electronics
    Researchers have advanced a decades-old challenge in the field of organic semiconductors, opening new possibilities for the future of electronics. The researchers have created an organic semiconductor that forces electrons to move in a spiral pattern, which could improve the efficiency of OLED displays in television and smartphone screens, or power next-generation computing technologies such […]
  • Breakthrough nano-spring technology boosts battery durability and energy density
    Scientists improved battery durability and energy density with a nano-spring coating.
  • Scientists discover smart way to generate energy with tiny beads
    Researchers have discovered a new method to generate electricity using small plastic beads. By placing these beads close together and bringing them into contact, they generate more electricity than usual. This process, known as triboelectrification, is similar to the static electricity produced when rubbing a balloon against hair.
  • Building bridges in physics
    Researchers show that Cartan's First Structure Equation, which relates to edge and screw dislocations in crystal lattices, can be recast in the same form as a basic mathematical formula that governs the behavior of electric currents and magnetic fields. This work can help make new concepts more understandable by employing more familiar frameworks.
  • 'Nanodot' control could fine-tune light for sharper displays, quantum computing
    Newly achieved precise control over light emitted from incredibly tiny sources, a few nanometers in size, embedded in two-dimensional materials could lead to remarkably high-resolution monitors and advances in ultra-fast quantum computing, according to an international team.
  • Super sapphire resists scratches, glare, fog and dust
    Researchers have discovered techniques to bestow superpowers upon sapphire, a material that most of us think of as just a pretty jewel.
Featured image of Spin Pumping: An introductory overview
Magnetism, Physics

Spin pumping: An Introductory Overview

With STT, we have seen that a current can move magnetization, but the reciprocal effect is also possible, namely the generation of a spin current by magnetization motion. This phenomenon is called spin pumping and it is essential for developing spintronic devices, which utilize the spin of electrons rather than ...
Fig 5. Illustration of a quantum mechanics calculation of the reflected spin current.
Magnetism, Physics

Spin-Transfer Torque: An Introductory Overview

Next to the charge, electrons also posses spins. In normal electronic circuits it is of (hardly) no use, as they are orientated randomly in non-ferromagnetic materials. However, when we integrate ferromagnetic components into these devices, the itinerant electrons can become partially spin polarized, with their spins taking on a more ...
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