Wednesday , May 12 2021

Supercomputers without waste water



Scanning tunneling microscope has been installed in a helium-proofing device from below (with the problem removal removed). The mechanism for setting up the microscope peep beyond the problem is visible (center of image). Credit: Simon Diesch

Mostly, magnetism and the powerless streaming of electric streams ("superconductivity") are causing phenomena that could not be a real genuine. To build supercomputers, synergies combine the two states with great benefits in comparison to today's high tech science technology, characterized by high electricity and overall production. Researchers from & # 39; The University of Constance has now proven that the over-the-counter electrical transmission of magnetically encoded information is possible. This security ensures enhanced storage situation on integral ships and significantly reduces the energy consumption of specialty stores. The results of this study are published in the current issue of the scientific journal Nature Communications.


The miniaturization of the hall technology is its physical limitations. For more than 70 years, information processing in computers has been realized by creating and moving electrical signals, which provides healing water. Ship division resulted in a temperature increase in the blocks, which, in their place, requires complex cooling systems. Warmwetmanagement is one of the major challenges in miniaturization. Therefore, the intentions on the world will be # the world was to increase waste water in data processing and telephony.

A collaboration with the University of Constanz between the experimental physics group led by Professor Elke Scheer and the theoretical physics group under the leadership of Professor Wolfgang Belzig used an approach based on free-line transport in super-powered building blocks. Magnetic materials are often used for information storage. Magnetic or encrypted information can, in principle, be transmitted without any merchandise through the use of electron spin instead of charge. The combination of the supplementary transport of super-conductivity with the electronic transport of magnetic information, d. H. Spintronics, complements the way for fundamentally new features for nearer energy efficient information technology.

The researchers of the University of Konstanz have a major challenge in this approach: the fact that in conventional superconductors the present word is made by few electroons with opposite magnetic moments. These are therefore non-magnetic and can not carry magnetic information. The magnetic state is made clear by magnetic moments that are parallel to each other, thus suppressing current submissions.

"The combination of superconductivity, which does not work full-time generation, with spintronics, translating magnetic information, does not contradict basic physical concepts, but precisely naive traditions on the nature of materials," says Elke Scheer. Famous findings suggests that by supplying superconductors in contact with special magnetic materials, parallels with parallel spin can provide the sweetening suppression across countries by magnets. This concept can enable new electronic devices with revolutionary features.

Under the supervision of Elke Scheer Dr. Simon Diesch conducted an experiment that elaborated the development of such electron-pairs with parallel section spin orientation. "We have shown that it is possible to make and track this spin-aligning electro-wires," explains Simon Diesch. The design of the system and the interpretation of measurement results are on & # 39; the doctoral of Dr. Peter Machon in the field of theoretical physics, under the supervision of Wolfgang Belzig.

"It's important to find material that's being plugged into smart electronics, is not just a physics, but also a material science project," says Scheer. Researchers from the Karlsruhe Institute for Technology (KIT) gave the tailor made samples consisting of aluminum and europium sulphides. Aluminum is a highly tested superconductor, making it possible for a quantitative comparison between theory and experiment. Europium sulphides are a ferromagnetic isolator, an important material for the realization of the theoretical concept, which maintains its magnetic properties even in densely densely layers of some names, as used herein. Using a scanning tunneling microscope developed to Konstanz University, spatial and energy-specific measurements of # 39; Cargo transports of aluminum-europium sulphides were samples carried out at lower temperatures. Contrary to commercial instruments, the scanning tunneling microscope is optimized based on the Scheer Laboratory for optimal energy solution optimized for operation in different magnetic fields.

The tension dependency of loading charges through the problems is present at & # 39; the power consumption of electron cameras and provides sufficient setting of & nbsp; the composition of superconducting state. Hence, a theory was developed by former Belzig group and customization to describe the aluminum-sulfide interface. This theory will contain researchers to describe more complex electrical circles and samples in future. The energy spectra, which has the theory provided, is agreed with the experimental findings, which provides direct evidence of the magnetic electron pairs.

Furthermore, the experimental-theoretical co-operation decided on the interpretation of such spectra. With these results, the University of Constanz physicists hope the high potential for supralarial spintronics to increase or replace semiconductor technology.


Expand further:
Some superconductors can also include streams of spin & # 39; carry

More information:
S. Diesch et al. Structure of global spin-triplet supducerity on Al / EuS interface, Nature Communications (2018). DOI: 10.1038 / s41467-018-07597-w

Magazine reference:
Nature Communications

Provided by:
University of Constance


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