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Showing posts with the label data storage

Manipulating surface-bound molecules into lowest quantum energy state advances ultra-dense quantum information storage

https://www.eurekalert.org/news-releases/1133848 "quantum behavior in larger molecular structures difficult to work with as thermal noise/ interaction with supporting substrates destroys coherence... overcome utilizing scanning tunneling microscope/ sub-Kelvin cooling isolating individual phthalocyanine molecules on pristine silver surface... residual rotational/ vibrational energy stripped away by tuning localized electronic pulses, freezing molecules into single, unperturbed quantum ground state... stable molecular qubits, nanoscale chemical reaction control"

Hardware-centric paradigm solves tradeoff between chip memory/ logic units during heavy artificial intelligence training workloads

https://www.eurekalert.org/news-releases/1129445 "soaring energy/ heat demands from light-based signals translating data back/ forth between electric/ optical states, overcome integrating TPA-QCN organic molecular material onto silicon infrastructure... exhibits powerful 2nd-order optical non-linearity allowing traveling light beams to interact/ process data on chip, enabling passive signal modulation/ amplification compatible with low temperature/ cost commercial manufacturing... scalable/ energy-efficient: hybrid electro-optic AI computing clusters"

Molecular data storage method achieves 30X data density of experimental DNA storage platforms at one-tenth the cost

https://phys.org/news/2026-05-proteins-digital-density-tenth.html "utilizes custom-engineered proteins instead of DNA, leveraging amino acids' vast structural combinations... successfully encoded and retrieved high-resolution digital files with 100% accuracy using standard laboratory sequencing tools. This advancement offers a highly stable, ultra-dense, and cost-effective alternative to traditional silicon-based data centers for long-term archival storage" Related: Protein-based data storage delivers high storage capacity, strong stability and encryption https://www.eurekalert.org/news-releases/1129790

Fs laser pulses flip nanoscale magnetic vortices at several hundred ps using magnetic helicity to store/ process data simultaneously

https://phys.org/news/2026-04-laser-flip-nanoscale-magnetic-vortices.html "switching helicity slow/ requires complex power-hungry magnetic fields difficult to integrate into computer chip, overcome using photothermal control of magnetic vortices' twist/ orders magnitude faster... magnetic vortices represent multiple states (clockwise, counter-clockwise, different core polarities) allowing non-binary computing, mimicking neuron signaling... far less waste heat than pushing electrons through silicon transistors, vortex shape topologically stable... existing industrial materials"

Dynamic driving stores information in a material without using any internal electronics, electricity, or manual individual adjustments

https://www.eurekalert.org/news-releases/1126852 "flexible, bistable, silicone-based beams each flipped either left (0)/ right (1)... manually flipping 1 by 1 slow/ impossible for complex systems, overcome spinning/ rotating platform, tuning: speed, direction, acceleration... forces: centrifugal pushes beams outward as spin speed increases, Euler occurs during rapid acceleration/ deceleration snapping beams into specific position...  materials think/ remember through own geometry... soft robotics, medical implants, computers, underwater exploration/ high-radiation zones"

Silicon LED/ laser integration into standard electronic circuits powered by same battery or power supply that runs rest of chip

https://phys.org/news/2026-04-momentum-photonic-states-bulk-silicon.html "can't build all-silicon lasers/ efficient LEDs due to silicon's indirect band gap; for electron in silicon energy level drop/ emit light needs momentum change, but photons carry almost 0 momentum, overcome decorating bulk silicon with ultrasmall copper particles/ confining light to <2 nm space increasing momentum distribution until matches that required by silicon’s electrons, converting silicon into direct band gap material allowing 100,000X increased light emission intensity without needing phonons"

Basing holographic data storage on light's phase and polarization, as well as on its intensity, enables significantly greater data density

https://www.eurekalert.org/news-releases/1121069 "holographic storage usually based only on light's intensity (amplitude), ignoring its phase/ polarization, making storage/ retrieval incredibly complex... overcome using convolutional neural network solving decoding by learning to identify phase/ polarization signatures within simple diffraction intensity images, allowing all 3 light properties to be reconstructed simultaneously... significantly greater data storage density compared to traditional surface-level storage like hard drives or DVDs"

Doped hafnium oxide ferroelectric semiconductor memory/ logic gate resolves memory (density, efficiency)/ processor (speed) tradeoff

https://techxplore.com/news/2026-03-storage-capacity-smart-gate-semiconductor.html "rapid electrical polarization switching, non- volatile, data/ CPU/ memory on same chip... 3D Vertical Integration without heat-induced degradation... 4X increased storage capacity, sub-1.0V which is 60% lower for data-intensive tasks, lower latency... direct challenge to high-bandwidth memory (HBM)... because hafnium oxide already standard material in CMOS fabrication, can be integrated into existing semiconductor foundries with minimal retooling"

New form of magnetism in four-layer twisted 2D chromium iodide produces stable skyrmions, for ultra‑dense data storage

https://www.eurekalert.org/news-releases/1115520 "skyrmions: tiny, stable magnetic patterns that could serve as ultra‑small carriers of storage data... the newly discovered magnetic states in twisted 2D materials are promising because: they could enable very high‑density data storage... skyrmion magnetic structures are stable against disturbances, which is crucial for reliable memory devices... signals were extremely weak, overcome using quantum sensing microscope based on nitrogen‑vacancy centers in diamond"

Room-temperature 2D multiferroic metal exhibits both electric polarization/ magnetic order, for spintronic memory/ logic devices

https://www.eurekalert.org/news-releases/1119888 " electrical writing/ magnetic reading, where electric field controls magnetic states... more energy-efficient than using electrical currents... combines antiferromagnetic/ ferromagnetic chromium telluride bilayers, breaking material's inversion symmetry, inducing spontaneous ferroelectric polarization... strong magnetoelectric coupling... interlayer charge-asymmetry mechanism, compatible with existing CMOS manufacturing... highly energy-efficient single-phase multiferroics at the atomic scale"

Mesophase intermediate matter states significantly accelerate nanoparticle crystallization, highly valued for their orderly structures

https://phys.org/news/2026-03-intermediate-phases-faster-nanoparticle-crystallization.html "nanoparticles disordered during assembly, overcome passing through mesophase preventing these dead ends by splitting large free-energy barrier, crystallizing orders magnitude faster than using 1-step transition... mesophases more mobile/ flexible than final crystals, easier to anneal/ fix structural defects for more homogeneous final material with fewer flaws... rules define pressure, concentration, particle shape forming mesophase... optical devices, data storage, biological/ synthetic polymers/ proteins"

Heat can flow backward from cold to hot regions, rather than diffusing randomly, in certain materials like graphite and graphene

https://www.eurekalert.org/news-releases/1115922 "heat carried by phonons (vibrations), but these phonons can flow collectively like water in a pipe... injecting heat into specific points can create vortices on flow's sides, pushing heat back from cold regions toward hot ones, making thermal resistance across device negative... prevent overheating in smartphones, batteries, computers, more effectively than traditional cooling... can be applied to other systems such as electrons (in plasmonics)/ magnons (magnetic storage)... future: apply at higher temperatures than 70°K"

Controlling 2D materials' magnetic state using only electric fields advances spintronics and data storage/ processing

https://phys.org/news/2026-02-electrical-magnetism-2d-materials-advance.html "no high-energy magnetic field/ bulky components... low power consumption... apply small gate voltage to specific 2D van der Waals magnets, injecting/ removing charge carriers altering exchange interaction between spins, resulting in ability to switch between ferromagnetic (magnetic)/ antiferromagnetic (non-magnetic/compensated)... Van der Waals Heterostructures layered with 2D graphene or hexagonal boron nitride facilitating electrical tuning... future: room temperature quantum spintronic devices" Related: Chiral nanomaterials enable magnetic-free control of electron spin for next-generation electronics and catalysis https://www.eurekalert.org/news-releases/1120301 Quantum fluid reveals hidden states that can be switched with a magnetic field https://phys.org/news/2026-08-quantum-fluid-reveals-hidden-states.html

QR code measuring 1.98 μm^2, requiring electron microscope to be read, can preserve data for centuries/ millennia

https://www.eurekalert.org/news-releases/1116677 "individual pixels 49 nm... code milled into thin ceramic films using focused ion beams, ensuring chemically/ physically stable long-term data storage unlike magnetic and electronic media/ hard drives lasting only a few years... requires no energy/ cooling to maintain data once written... single A4 sheet could theoretically hold over 2 terabytes... data centers... future: increasing writing speeds and developing scalable manufacturing processes for more complex data structures" 

Breaking the holographic bottleneck via optical operators furthers scalable encryption and long-tern, ultra-high-density data storage

https://www.eurekalert.org/news-releases/1114541 "holography reached saturation using light's wavelength, polarization, orbital angular momentum encoding data... overcome using optical orbital angular momentum multiplication operator-specific holograms requiring specific mathematical pathways to open... each operator defined by: incident topological charge, scaling factor, propagation distance... 9X increased optical data storage capacity subdividing single channel, etching multiplexed independent holograms into glass using fs lasers" Related: Hologram technology where 'light becomes the key' enables hard-to-copy security https://phys.org/news/2026-05-hologram-technology-key-enables-hard.html

Ultra-fast spin-wave-based computing changes collective magnetic oscillations up to 40% using off-the-shelf laser at room temperature

https://phys.org/news/2026-01-tuning-commercially-devices-room-temperature.html "magnons' oscillation frequency controlled quasi instantly/ on demand by means of interacting: optical excitation, magnetic anisotropy (directional dependence), external magnetic field... scalable since material only 20 nm thick, so compatible with modern computer chip architecture... most cloud data is currently stored magnetically, but controlling frequency of spin waves (magnons) unlocks faster, energy-efficient data storage/ transfer"

Laser-induced magnetic property gradients using Direct-Write Laser Annealing for advanced data storage and computing technologies

https://www.eurekalert.org/news-releases/1109121 heats areas down to 150 nm on thin magnetic films' surface... modulating laser's intensity can alter magnetization strength/ direction, change: oxidation, crystallization, alloying... 2D gradients/ arbitrary shapes (circles, spirals, snowflakes) of magnetic properties, previously limited to 1D gradients... spintronics, continuous magnetic gradient allows electric current (instead of magnetic field) to write/ read... in-memory computing, creates magnetic landscapes mimicking neurons, can change material's refractive index"

Tunable metamaterial enables on-chip optical encryption which hides, rewrites, and stores multilevel information using different light fields

https://www.eurekalert.org/news-releases/1105998 "coumarin-based metamaterial, dynamic control... text, watermarks, graphics invisible under white light/ revealed by specific UV... 60 second write/erase cycles without chemicals/ mechanical wear.... features small as 700 nm via 2-photon polymerization/ grayscale-gradient processing... independent optical channels as separate passwords for different data levels... contrast remains >3× after 20 write–erase loops, readable >10 days... banknotes, pharmaceuticals, ID chips with time-dependent codes... reconfigurable barcodes"

Propeller-shaped luminescent molecules exhibiting circularly polarized luminescence can switch chirality depending on the solvent

https://phys.org/news/2025-10-propeller-luminescent-molecules-chirality-solvent.html "molecule, of 6 highly emissive perylene diimide chromophores arranged like blades, obtained in high yield spontaneously twisting in optically active conformation, exhibiting bright circularly polarized luminescence... different helical conformations/ complete polarization inversion measured in chloroform versus dichloromethane solvent, caused by internal phenethyl groups' rotation... contrasts with static chiral molecular designs... optical switching, molecular sensors, polarization devices, quantum photonics" Related: Hyperbolic in-plane anisotropy to optical chirality: new route to nanoscale circular polarizers https://phys.org/news/2026-03-hyperbolic-plane-anisotropy-optical-chirality.html

Magnetic field-programmable acceleration of ultrafast demagnetization for multifunctional spintronic devices

https://www.eurekalert.org/news-releases/1093615 "fs laser-induced ferromagnetic 2D van der Waals Fe3GeTe2 simultaneously accelerates demagnetization speed/ suppress its efficiency... controlling energy transfer mechanisms among electron spins (angular momentum), lattice vibrations, charge carriers, for potential fs-speed magnetic storage/ logic... near 210°K Curie temperature applying 7 T magnetic field reduces demagnetization time from 22.2 to 9.9 ps, decreasing efficiency from 79 to 52%... acceleration effect is due to magnetic field-modulated spin entropy"