Condensed Matter

1902 Submissions

[15] viXra:1902.0287 [pdf] submitted on 2019-02-16 11:23:46

Particles Switch Back and Forth

Authors: George Rajna
Comments: 57 Pages.

Three years ago, when Richard Robinson, associate professor of materials science and engineering, was on sabbatical at Hebrew University in Israel, he asked a graduate student to send him some nanoparticles of a specific size. [34] An efficient new method to find out whether a material hosts topological states or not could help increase the number of known topological materials from a few hundred to thousands. [33] With their insensitivity to decoherence, Majorana particles could become stable building blocks of quantum computers. [32]
Category: Condensed Matter

[14] viXra:1902.0277 [pdf] submitted on 2019-02-17 04:30:47

Laser-Induced Graphene

Authors: George Rajna
Comments: 77 Pages.

Laser-induced graphene (LIG), a flaky foam of the atom-thick carbon, has many interesting properties on its own but gains new powers as part of a composite. [46] A team of researchers based at The University of Manchester have found a low cost method for producing graphene printed electronics, which significantly speeds up and reduces the cost of conductive graphene inks. [45] Graphene-based computer components that can deal in terahertz “could be used, not in a normal Macintosh or PC, but perhaps in very advanced computers with high processing rates,” Ozaki says. This 2-D material could also be used to make extremely high-speed nanodevices, he adds. [44]
Category: Condensed Matter

[13] viXra:1902.0264 [pdf] submitted on 2019-02-16 04:17:18

Charged Particle Diffusion and Segregation in Solid and Liquid

Authors: Yuanjie Huang
Comments: 13 Pages.

Solute particle transport in solid and liquid is of paramount important for people to understand its roles and tune the corresponding functions. In this work, we find a new mechanism for the transport, specifically, an internal electric field originating from solute atom concentration gradient based on Yuheng Zhang equation. This electric field is found to have a dramatic effect on transport of solute particles in solid and liquid. It either facilitates or prohibit solute particle diffusion, and may give birth to a threshold concentration above which segregation happens. Also because of this internal electric field, transport of one type of solute atom can be tuned by another type of particles. At last, segregation for solute particles at solid-liquid interface is investigated and it may arise from Haiyan Zang potential, an electric potential at interfaces once phase transformations happen. These findings may help people understand and tune related particle transport in solid and liquid
Category: Condensed Matter

[12] viXra:1902.0233 [pdf] submitted on 2019-02-13 08:02:22

Hyperbolic Metamaterial Fingerprinting

Authors: George Rajna
Comments: 61 Pages.

Hyperbolic metamaterials are artificially made structures that can be formed by depositing alternating thin layers of a conductor such as silver or graphene onto a substrate. [41] For the first time scientists measured the vibrational structure of hydrogen and helium atoms by X-rays. [40] Laser physicists have succeeded in reducing the acquisition time for data required for reliable characterization of multidimensional electron motions by a factor of 1000. [39]
Category: Condensed Matter

[11] viXra:1902.0199 [pdf] submitted on 2019-02-11 06:56:20

Dynamically Disordered Materials

Authors: George Rajna
Comments: 50 Pages.

Theoretical physicists at Linköping University have developed a computational method to calculate the transition from one phase to another in dynamically disordered solid materials. [31] Researchers at Tokai University report in Nano Letters a systematic study on the effects that using different forms of titanium oxide in planar perovskite solar cells has on the performance of the devices. [30] KU Leuven researchers from the Roeffaers Lab and the Hofkens Group have now put forward a very promising direct X-ray detector design, based on a rapidly emerging halide perovskite semiconductor, with chemical formula Cs2AgBiBr6. [29]
Category: Condensed Matter

[10] viXra:1902.0180 [pdf] submitted on 2019-02-10 06:44:57

Sticky Situation at Nanoscale

Authors: George Rajna
Comments: 35 Pages.

Brown University researchers have made a discovery about the way things stick together at tiny scales that could be helpful in engineering micro- and nanoscale devices. [22] University of Maryland researchers have created a fabric that can automatically regulate the amount of heat that passes through it. [21] At EPFL, Selman Sakar's research team has developed micromachines able to mechanically stimulate cells and microtissue. [20] Scientists from ITMO in collaboration with international colleagues have proposed new DNA-based nanomachines that can be used for gene therapy for cancer. [19]
Category: Condensed Matter

[9] viXra:1902.0170 [pdf] submitted on 2019-02-09 04:59:25

Conducting Edges in 2-D Material

Authors: George Rajna
Comments: 63 Pages.

A research team comprised of scientists at the University of California, Riverside, and the University of Washington has for the first time directly imaged "edge conduction" in monolayer tungsten ditelluride, or WTe2, a newly discovered 2-D topological insulator and quantum material. [41] A team of researchers at the University of Chicago has developed a circuit platform for the exploration of quantum matter made of strongly interacting microwave photons. [40]
Category: Condensed Matter

[8] viXra:1902.0169 [pdf] submitted on 2019-02-09 05:31:27

Envelope to Aluminum Plasmonics

Authors: George Rajna
Comments: 65 Pages.

When Rice University chemist and engineer Hossein Robatjazi set out to marry a molecular sieve called MOF to a plasmonic aluminum nanoparticle two years ago, he never imagined the key would be the same process nature uses to petrify wood. [42] A research team comprised of scientists at the University of California, Riverside, and the University of Washington has for the first time directly imaged "edge conduction" in monolayer tungsten ditelluride, or WTe2, a newly discovered 2-D topological insulator and quantum material. [41]
Category: Condensed Matter

[7] viXra:1902.0149 [pdf] submitted on 2019-02-08 08:18:11

Disorder Traps Sound and Light

Authors: George Rajna
Comments: 61 Pages.

Sound and light are crucial for our life and are essential in many energy, communication and information technologies. [40] Laser physicists have succeeded in reducing the acquisition time for data required for reliable characterization of multidimensional electron motions by a factor of 1000. [39] Princeton researchers have demonstrated a new way of making controllable "quantum wires" in the presence of a magnetic field, according to a new study published in Nature. [38] Physicists at the Kastler Brossel Laboratory in Paris have reached a milestone in the combination of cold atoms and nanophotonics. [37]
Category: Condensed Matter

[6] viXra:1902.0129 [pdf] submitted on 2019-02-07 05:23:16

New Type of Magnet

Authors: George Rajna
Comments: 47 Pages.

A team of scientists has discovered the first robust example of a new type of magnet—one that holds promise for enhancing the performance of data storage technologies. [30] Single-molecule magnets (SMMs) have been attracting a lot of attention recently. This is because of the increased demand for faster, longer-lasting and lower-energy IT systems, and the need for higher data storage capacity. [29] Researchers have discovered that using an easily made combination of materials might be the way to offer a more stable environment for smaller and safer data storage, ultimately leading to miniature computers. [28]
Category: Condensed Matter

[5] viXra:1902.0091 [pdf] submitted on 2019-02-06 04:46:12

Nanosized Amplifier Photonics

Authors: George Rajna
Comments: 60 Pages.

With international collaboration, researchers at Aalto University have now developed a nanosized amplifier to help light signals propagate through microchips. [38] Physicists at the Kastler Brossel Laboratory in Paris have reached a milestone in the combination of cold atoms and nanophotonics. [37] The universal laws governing the dynamics of interacting quantum particles are yet to be fully revealed to the scientific community. [36] Now NIST scientists have designed a vacuum gauge that is small enough to deploy in commonly used vacuum chambers. [35]
Category: Condensed Matter

[4] viXra:1902.0054 [pdf] submitted on 2019-02-03 05:06:05

Photocurrent Loss in Particle Interface

Authors: George Rajna
Comments: 52 Pages.

A group led by Peng Chen, the Peter J.W. Debye Professor in the Department of Chemistry and Chemical Biology at Cornell, has determined that photocurrent loses approximately 20 percent of its power as it passes through the interface. [38] NIMS and Hokkaido University jointly discovered that proton transfer in electrochemical reactions is governed by the quantum tunneling effect (QTE) under the specific conditions. [37] Researchers at the University of Vienna study the relevance of quantum reference frames for the symmetries of the world. [36] Researchers in Singapore have built a refrigerator that's just three atoms big. This quantum fridge won't keep your drinks cold, but it's cool proof of physics operating at the smallest scales. [35]
Category: Condensed Matter

[3] viXra:1902.0051 [pdf] submitted on 2019-02-03 07:03:14

Graphene Molecular Zippers

Authors: George Rajna
Comments: 78 Pages.

Now, researchers from Brown University's School of Engineering have explained how the phenomenon works, and that explanation could pave the way for a new type of controlled molecular self-assembly. [47] The team has turned graphene oxide (GO) into a soft, moldable and kneadable play dough that can be shaped and reshaped into free-standing, three-dimensional structures. [46] A team of researchers based at The University of Manchester have found a low cost method for producing graphene printed electronics, which significantly speeds up and reduces the cost of conductive graphene inks. [45]
Category: Condensed Matter

[2] viXra:1902.0048 [pdf] submitted on 2019-02-03 07:19:38

Electron Microscopy Nanoscale

Authors: George Rajna
Comments: 22 Pages.

A new electron microscopy technique that detects the subtle changes in the weight of proteins at the nanoscale—while keeping the sample intact—could open a new pathway for deeper, more comprehensive studies of the basic building blocks of life. [14] Researchers use a cavity-coupled double quantum dot to study electron-phonon interactions in a nanowire. [13] Quantum behavior plays a crucial role in novel and emergent material properties, such as superconductivity and magnetism. [12] A source of single photons that meets three important criteria for use in quantum-information systems has been unveiled in China by an international team of physicists. Based on a quantum dot, the device is an efficient source of photons that emerge as solo particles that are indistinguishable from each other. The researchers are now trying to use the source to create a quantum computer based on "boson sampling". [11]
Category: Condensed Matter

[1] viXra:1902.0007 [pdf] submitted on 2019-02-01 10:23:45

Magnetic Graphene Switches

Authors: George Rajna
Comments: 79 Pages.

Researchers have found that certain ultra-thin magnetic materials can switch from insulator to conductor under high pressure, a phenomenon that could be used in the development of next-generation electronics and memory storage devices. [46] Transparent electronics are the future, according to researchers including José A. Flores-Livas and Miglė Graužinytė from the research group headed by Stefan Goedecker, Professor of Computational Physics at the University of Basel. [45] For the first time ever, an international team of researchers imaged the microscopic state of negative capacitance. [44]
Category: Condensed Matter