University of Groningen physicists have managed to alter the flow of spin waves through a magnet, using only an electrical current. This is a huge step towards the spin transistor that is needed to construct spintronic devices. These promise to be much more energy efficient than conventional electronics.
The results were published on 2 March in Physical Review Letters.
Spin is a quantum mechanical property of electrons. Simply put, it makes electrons behave like small magnetic compass needles which can point up or down. This can be used to transfer or store information, creating spintronic devices that promise several advantages over normal microelectronics.
In a conventional computer, separate devices are needed for data storage (often using a magnetic process) and data processing (electronic transistors). Spintronics could integrate both in one device, so it would no longer be necessary to move information between storage and processing units. Furthermore, spins can be stored in a non-volatile way, which means that their storage requires no energy, in contrast to normal RAM memory. All this means that spintronics could potentially make faster and more energy-efficient computers.
‘We described this spin transport through a magnet some time ago. Now, we’ve taken the next step: we wanted to influence the transport.’ This was done using a third platinum strip between injector and detector. By applying a positive or negative current, it is possible to either inject additional magnons in the conduction channel or drain magnons from it. ‘That makes our set up analogous to a field effect transistor. In such a transistor, an electric field of a gate electrode reduces or increases the number of free electrons in the channel, thus shutting down or boosting the current.’
The study shows that a YIG spin transistor can be made, and that in the long run this material could even produce a spin superconductor. The beauty of the system is that spin injection and control of spin currents is achieved with a simple DC current, making these spintronic devices compatible with normal electronics. ‘Our next step is to see if we can realize this promise’, concludes Van Wees.
The Latest on: Spin superconductor
[google_news title=”” keyword=”Spin superconductor” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Spin superconductor
- Spin for Free UGC Codes (May 2024)on April 30, 2024 at 3:18 am
Kristina Timotic is a Codes Staff Writer who prides herself on her research abilities. No code will remain unredeemed on her watch! When she's not forced to watch Masha and the Bear with her ...
- Spin 4 Free UGC Codes (April 2024)on April 29, 2024 at 7:41 pm
Ana Mitic, a seasoned code writer for GAMURS, blends her deep-rooted passion for gaming with her professional expertise. With a decade of gaming experience, she specializes in immersive titles ...
- Spin Genie Casino Review 2024on April 29, 2024 at 11:10 am
Spin Genie Casino is a solid online casino available in Ontario. The Alcohol and Gaming Commission of Ontario licenses the site, and it is easy to navigate, with an impressive range of slots and ...
- Exploring Unconventional Superconductivity in Synthetic and Natural Materialson April 24, 2024 at 8:12 am
Superconductivity is a notable discovery that has recently gained significant attention. Conventional superconductors, such as aluminum and niobium, are considered major participants in this domain. 1 ...
- Spin doctorson April 23, 2024 at 5:00 pm
How-ever, make no mistake, their sole priority is imparting spin on any news bulletin emanating from, or aimed at, their entity, be it a government department, a large private conglomerate ...
- Spintronics: A new path to room temperature swirling spin textureson April 17, 2024 at 10:22 am
Samples consist of micrometer-sized islands made of the high-temperature superconductor YBCO on which a ferromagnetic compound is deposited. On cooling the sample below 92 Kelvin (-181 °C), YBCO ...
- The 5 best electric scrubbers for spring cleaning in 2024on April 17, 2024 at 9:46 am
The electric spin scrubber can be extended more than 3.5 feet and its head can be rotated in three different directions, including 90, 135 and 180 degrees. This allows you to get into hard-to ...
- Spintronics: A new path to room temperature swirling spin textureson April 16, 2024 at 5:01 pm
Samples consist of micrometer-sized islands made of the high-temperature superconductor YBCO on which a ferromagnetic compound is deposited. On cooling the sample below 92 Kelvin (-181 °C), YBCO ...
- Spintronics: A new path to room temperature swirling spin textureson April 16, 2024 at 5:01 pm
Physicists have now investigated a new approach that can be used to create and stabilize complex spin textures ... islands made of the high-temperature superconductor YBCO on which a ferromagnetic ...
- SPIN First Drop: KSHMRon April 5, 2024 at 11:32 am
live performances. Step into the DJ booth with KSHMR and watch his exclusive SPIN First Drop below. To check out more SPIN First Drops, head over to SPINTV.
via Bing News
