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Spintronics made easy
David Awschalom provides a fantastic introduction to the exciting new field of spintronics, explaining how electron spin could be harnessed to create very dense computer memories and even quantum computers. A related video interview with the Nobel-prize-winning physicist Albert Fert is available on physicsworld.com. physicsworld.com

Uploaded: 3 months ago | By: PhysicsWorldTV | Category: Tech | 101 Views | Avg. Rating 5.0 From: 3 People

Aiming to discover spin related new functional properties
[Keio Spintronics Network - Itoh-Taniyama Group, Tokyo Institute of Technology] The Itoh-Taniyama Group is investigating physical phenomena involving spin at interfaces between materials of different types; in particular, magnetic materials, semiconductors, and ferroelectric materials. One aim is to develop functional magnetic properties at interfaces. Q.For example, if you combine a magnetic material and a semiconductor, or magnetic and ferroelectric materials, new properties can emerge in the interface region when the materials are placed in contact. Were doing research on spintronics applications, which could be achieved by effectively utilizing the characteristic properties that emerge when different materials are in contact. So far, its been found that special properties easily arise at interfaces between different materials. Devices such as the hard disk heads used in todays computers make positive use of such properties. And if we combine magnetic and ferroelectric materials, which originally each have special properties, then at the interface, phenomena occur that are totally different from the properties of either material. Q.The direction of magnetization is very sensitive to things like lattice distortion in the magnetic material. When two materials are placed in contact, very large distortion arises at the interface. In some cases, this drastically changes the properties of the magnetic material. Our research...

Uploaded: 9 months ago | By: keiouniversity | Category: Tech | 247 Views | Avg. Rating 5.0 From: 4 People

Atomtronics
electronics 585000000 - mechatronics 2820, 000 - spintronics 229000 - atomtronics 6410 on 1st Feb. 2011 2158 Hong Kong Time

Uploaded: 1 year ago | By: zea430 | Category: Tech | 137 Views | Avg. Rating 3.66 From: 3 People

Magnetoresistive devices using highly spin-polarized materials
[Keio Spintronics Network - Shirai Laboratory, Tohoku University] The Masafumi Shirai Laboratory at Tohoku Universitys Research Institute of Electrical Communication is doing theoretical research on electrical conductivity in magnetoresistive devices. The aim is to achieve very functional spintronics devices using highly spin-polarized materials. Q. The hard disk drives in todays PCs, and future non-volatile magnetic memory, utilize tunneling magnetoresistive devices, which combine magnetic and insulating materials. In our group, we theoretically calculate what sort of materials could be used to improve performance in the future, and how those materials should be combined to improve device performance. And we use these calculations to provide experimentalists with guidelines for fabricating new devices. To increase circuit integration in nonvolatile memory using magnetic materials in the future, an important technology will be alignment of the magnetic moments perpendicular to the plane. For example, if a perpendicularly magnetized material called iron-platinum is combined with magnesium oxide, its clear from theoretical calculations that the memory reading output isnt very high. But the Shirai Lab has also calculated that a high output can be obtained if a very thin layer of iron, just a few atoms thick, is formed between the iron-platinum and the magnesium oxide. Q. From our calculations, we can obtain guidelines as ...

Uploaded: 1 year ago | By: keiouniversity | Category: Tech | 632 Views | Avg. Rating 5.0 From: 2 People

Power Flower ~ Conducting the Serpent of Light ~ chakra 1 & 2
This is the first part of an animation that shows how from nothingness all is generated from a single point of consciousness. The special edge we add to the basic spin of hydro gen is what it is all about. It is the Arc that carries all we know straight through the Hoop, but with a twist So get into into the Groove These are spins through the Field generating, and or following, Electromagnetic patterns, that collect something X-tra after each twist. This spin sucks in Matter out of Nothing, and thus DNA condenses in the Center of the Spirals, and the rest is his story because from now on we write our own The Power Flower meta structures are multi dimensional manifestations of the Polarized Harmony between inner and outer, male-female, creator-creation, beginning-end, wrong-right, left-right and every other duality imaginable. We are working ourselves up to 7 levels/dimensions, so stay Tuned Here is shown the relationship between the double helix DNA spiral, polarization, duality, the round hoop, Zero Point Field, Energy from the Vacuum, Free Energy, Orgone, the Pentagram, Mercurys Staff, Ourobouros, Merkaba, Venus Precession Orbit, Kundalini, Serpent of Knowledge, Spintronics, Fractals, Gravity, Gyroscopes, Chakras and Electro Magnetism. anarchitecture, stella metaflortex pinealis, selfsustainable, permaculture, light technology, bio-magnetism, bio-luminescence, gnosis, conduction, energy, free energy, over unity, tran...

Uploaded: 1 year ago | By: metaflortex | Category: Tech | 774 Views | Avg. Rating 5.0 From: 5 People

Spintronics research opens the way to new semiconductor technology
[Keio Spintronics Network - Masaaki Tanaka Laboratory , Tokyo University] Masaaki Tanaka Laboratory at the University of Tokyo leads the spintronics research, a 21st century field of electronics that utilizes electron spin. Q. The computers we use today are based on large-scale integrated circuits LSI, which are made of silicon transistors. The size of transistors is becoming smaller and smaller, but approaching the limits of microfabrication. Power consumption increases sharply, and the cost of making devices smaller becomes high. So were approaching the limits in a variety of senses, both physically and economically. The semiconductors that have supported electronics and information technology so far utilize only the charge of electrons. But the Tanaka Lab is working to create a new paradigm for electronics, by utilizing spin, another degree of freedom possessed by electrons. By analogy with classical mechanics, spin is the rotation of an electron. Because the rotation of electrons can never be stopped, electrons can be described as the worlds smallest magnets. The fact that materials can be made to exhibit ferromagnetism by controlling the direction of spin is a major key to spintronics technology. Q. In magnetic materials, electron spins are aligned, creating a ferromagnetic state. This is utilized to create high-density memory devices. One example is computer hard disks, and another is MRAM, which is expected to be us...

Uploaded: 1 year ago | By: keiouniversity | Category: Tech | 2,098 Views | Avg. Rating 5.0 From: 5 People

2-6_Spintronics.mp4
SAIT Research Domain Spintronics

Uploaded: 1 year ago | By: SAITSEC | Category: Tech | 678 Views | Avg. Rating 5.0 From: 1 Person

Fundamental theory of spintronics
[Keio Spintronics Network - Miyake Laboratory , Osaka University] Professor Kohno at Osaka University is doing theoretical research on spintronics, from the viewpoint of fundamental physics. Spintronics uses both the charge and spin of electrons in solids, to achieve electronic devices with new capabilities. Research on spintronics is currently very vigorous worldwide. Q. Usually, the aim of spintronics research is to apply it in industry. But Im studying spintronics theoretically, from the viewpoint of fundamental physics. Specifically, Im studying phenomena that properties of magnets are manipulated by electric currents, and conversely, dynamical information about magnetization is converted to electrical signals and detected. The impetus for this research came from an experiment on current-driven domain wall motion. In that experiment, a magnetic domain wall was moved by a current passing through a wire made of ferromagnetic material. Professor Kohno attempted to explain this experiment theoretically. Q. We derived an equation of motion of a domain wall under an applied current. The equation revealed that there are two mechanisms that drives domain walls. These two mechanisms are spin transfer and momentum transfer. Professor Kohno devised a theory of these mechanisms from the microscopic viewpoint. He also generalized this theory to situations other than domain walls. The equations Professor Kohno obtained led to the ...

Uploaded: 1 year ago | By: keiouniversity | Category: Tech | 6,472 Views | Avg. Rating 5.0 From: 13 People

Developing New Semiconductor Materials as Magnets to Realize Semiconductor Spintronics
[Keio Spintronics Network - Kuroda Laboratory , University of Tsukuba Graduate School of Pure and Applied Sciences Materials Science and Engineering] At the Kuroda Lab at the University of Tsukuba, researchers are working on the development of materials for new electronics. The new electronics include technology called spintronics. Q.Spintronics is a technology that uses electron spin to realize a variety of functions such as information transmission, calculations, and recording memory functions for example, and attention is being focused on spintronics as a next-generation electronics technology. Conventional semiconductor electronics use only the electric charge of electrons to realize a variety of functions, and silicon technology is a typical example of this. Thus far, semiconductors have become more highly integrated and miniaturized in accordance with Moores Law, but it is predicted that in the near future, the limit of that miniaturization will be reached. Therefore, a variety of new technologies are now being proposed in order to overcome that limit and achieve higher integration, higher speed operations, and lower power consumption. We expect that spin electronics will be one of those technologies that will enable us to overcome this limit. Spintronics is a technology with new potential. However, there are still some large hurdles that must be overcome in order to use this technology. Q.Electrons have a spin p...

Uploaded: 1 year ago | By: keiouniversity | Category: Tech | 915 Views | Avg. Rating 5.0 From: 2 People

Experimental research on physics and hardware for quantum information processing
[Keio Spintronics Network - Tarucha-Oiwa Laboratory , University of Tokyo] Tokyo Universitys Tarucha-Oiwa Laboratory is doing experimental research on physics and hardware for quantum information processing, which utilizes electron transport, spin correlation, and spin in low-dimensional electron systems. The laboratory is looking at electron systems in one and zero dimensions, which can be achieved through semiconductor microfabrication. The researchers study the fundamental physics of many-body effects in artificial atoms and molecules, spin phenomena in strong magnetic fields, the effects of conduction phenomena on electron and nuclear spin, electronic properties in one-dimensional Tomonaga-Luttinger liquids, and spin quantum computing. In addition, the Lab is developing a method of observing state density directly, using a surface-sensitive scanning probe. In our Lab, the main theme is how to precisely control, investigate, and utilize the quantum mechanical properties of the most basic particles in semiconductors -- the atoms. We started this research about 15 years ago. At that time, when we fabricated small structures called quantum dots, we were the first in the world to find out experimentally how to confine electrons in quantum dots, investigate their properties, and control their states. When electrons are injected one by one into artificial atoms, they occupy orbits, due to the quantum confinement effect, and ta...

Uploaded: 1 year ago | By: keiouniversity | Category: Tech | No Views | Avg. Rating 5.0 From: 7 People

Domain Wall Dynamics
Magnetic domain walls are explored as building blocks in novel spintronics applications. The dynamics of domain walls determine their functionality. The movie shows the fast oscillations of a trapped domain wall on a 100nm length and a sub-ns time scale.

Uploaded: 1 year ago | By: CenterForXRayOptics | Category: Tech | 587 Views

The Laboratory for Nanoelectronics and Spintronics at Tohoku University
[Keio Spintronics Network - Ohno Laboratory, Tohoku University] In the Laboratory for Nanoelectronics and Spintronics at Tohoku Universitys Research Institute of Electrical Communication, a group led by Professor Hideo Ohno is doing fundamental research on ferromagnetic semiconductors, which have the both properties of semiconductors and magnetic materials. Prp.Hideo Ohno QSemiconductors and magnetic materials, which are used to make integrated circuits and hard disks, are two separate things. But if you think about it, they use different aspects of the same thing - electrons. These materials utilize electricity, and small magnets, for separate purposes. So we thought that, if we looked at them together, we might find new capabilities or new phenomena. If progress is made in research on ferromagnetic semiconductors, which combine properties from two formerly separate fields of research, its expected that this will lead to applications, such as high-performance nonvolatile memory that doesnt use electric charge, and reconfigurable logic circuits. Associate Professor Matsukura, member of Ohnos research group, is studying III-Vthree-five compound semiconductors, such as gallium arsenide and indium arsenide. By doping these compounds with the magnetic element manganese, ferromagnetic materials can be produced. Prp.Matsukura QFerromagnetic semiconductors were originally developed by our group, and we studied them without ...

Uploaded: 1 year ago | By: keiouniversity | Category: Tech | 926 Views | Avg. Rating 5.0 From: 5 People

For Developing High Performance Spin Devices ： Kyushu University
[Keio Spintronics Network - Kimura Laboratory, Kyushu University] For Developing High Performance Spin Devices Kyushu University, Inamori Frontier Research Center, Advanced Electronics Research Division Takashi Kimura Thus far, semiconductors have played the role of the brain in electronic equipment and devices, but the Kimura Lab at Kyushu University is now engaged in the research and development of electronic devices that will contribute to energy conservation and solving environmental issues using magnets in place of semiconductors. Q.Currently, most electronic devices use semiconductors, and the integration of semiconductors has gradually increased. However, there is a limit to how far this integration can continue and at a certain limit, devices will stop functioning. There are several methods that can be used to overcome this issue, but what we are focusing on is the development of devices that use magnets instead of semiconductors. Magnets can be used to overcome the limits of semiconductors, and one of the merits is the memory effect of magnets. Electronic devices thus far have maintained informations by continuously providing electrical power, but in contrast, electronic devices using magnets can keep informations even when the electrical power is stopped because of the nonvolatile property of magnets. Therefore, the use of magnets can promote energy savings in a variety of electronic devices. Q.Semiconductor devi...

Uploaded: 1 year ago | By: keiouniversity | Category: Tech | 312 Views

Toward next-generation integrated circuits using spin-polarized current and pure spin current
[Keio Spintronics Network - Otani Laboratory The University of Tokyo] Institute for Solid State Physics The Ohtani Laboratory at Institute for Solid State Physics of Tokyo the University of Tokyo, s Institute for Solid State Physics is doing R & Dresearch on spintronics, which is expected to be a key technology for next-generation integrated circuits. The electronics technology utilized in integrated circuits so far uses only the charge degree of freedom possessed by electrons. But spintronics technology can also use the spin degree of freedom, which makes electrons act like magnets. This has enabled the development of devices with even higher performance. Q. First of all, we I did experiments with permanent magnets when I was a Ph D course student, to see how small they could be made. When we wereI was researching studying topics such as why permanent magnets are stable, we arrived at a micro-magnetic structure like this. When this is made small, the directions of magnetization can beare aligned. And we thought it was very interesting that, when we pass a current through it, we can extract spins. Right now, were thinking about what other things can be done using this micro-magnetic structure. Among various aspects of spintronics, the Ohtani Lab is focusing on spin-polarized current. The spins flowing in a material are of two types, called up and down. Because there are normally equal numbers of each type, their magnetism is ca...

Uploaded: 1 year ago | By: keiouniversity | Category: Tech | No Views | Avg. Rating 5.0 From: 3 People

Answer Will spin transfer torque research be awarded a Nobel Prize?
Albert Fert, Nobel Laureate in Physics 2007, has answered a selection of your questions, including his explanation of spintronics, his advice to students and his current research after receiving the Nobel Prize. See all of his answers here www.youtube.com Thanks to everyone for your participation.

Uploaded: 1 year ago | By: thenobelprize | Category: Tech | No Views | Avg. Rating 5.0 From: 5 People

Answer What is the future of semi-conductor spintronics?
Albert Fert, Nobel Laureate in Physics 2007, has answered a selection of your questions, including his explanation of spintronics, his advice to students and his current research after receiving the Nobel Prize. See all of his answers here www.youtube.com Thanks to everyone for your participation.

Uploaded: 1 year ago | By: thenobelprize | Category: Tech | 689 Views | Avg. Rating 5.0 From: 2 People

Answer What is spin?
Albert Fert, Nobel Laureate in Physics 2007, has answered a selection of your questions, including his explanation of spintronics, his advice to students and his current research after receiving the Nobel Prize. See all of his answers here www.youtube.com Thanks to everyone for your participation.

Uploaded: 1 year ago | By: thenobelprize | Category: Tech | No Views | Avg. Rating 5.0 From: 3 People

Answer What advice do you have for graduate students thinking about research?
Albert Fert, Nobel Laureate in Physics 2007, has answered a selection of your questions, including his explanation of spintronics, his advice to students and his current research after receiving the Nobel Prize. See all of his answers here www.youtube.com Thanks to everyone for your participation.

Uploaded: 1 year ago | By: thenobelprize | Category: Tech | 710 Views | Avg. Rating 5.0 From: 1 Person

Answer What area of research could lead to breakthroughs in the next 10 years?
Albert Fert, Nobel Laureate in Physics 2007, has answered a selection of your questions, including his explanation of spintronics, his advice to students and his current research after receiving the Nobel Prize. See all of his answers here www.youtube.com Thanks to everyone for your participation.

Uploaded: 1 year ago | By: thenobelprize | Category: Tech | 215 Views | Avg. Rating 5.0 From: 1 Person



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