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The experiments on the impact of the size of magnetite clusters on various magnetic properties (magnetic moment, Curie temperature, blocking temperature etc.) have been carried out. The methods of magnetic separation, centrifuging of water…

Materials Science · Physics 2015-12-24 V. N. Nikiforov , A. N. Ignatenko , A. V. Ivanov , V. Yu. Irkhin

Quantum confined Au nanoclusters exhibit molecule-like properties, including atomic precision and discrete energy levels. The electrical conductivity of Au nanocluster films can vary by several orders of magnitude, and is determined by the…

Applied Physics · Physics 2021-01-05 Michael Galchenko , Andrés Black , Leonard Heymann , Christian Klinke

The accelerating growth of global data generation demands data storage platforms that offer high capacity, long lifespan, and low energy consumption beyond the limits of electronic memory technologies. Optical storage provides an attractive…

How do nickel, cadmium, and lead nanoclusters interact with boron-nitride and Mobius-type boron-nitride nanobelts? To answer this question, we used the semiempirical tight binding framework, as implemented in the xTB software, to determine…

Materials Science · Physics 2025-09-01 C. Aguiar , N. Dattani , I. Camps

The superior density of passive analog-grade memristive crossbars may enable storing large synaptic weight matrices directly on specialized neuromorphic chips, thus avoiding costly off-chip communication. To ensure efficient use of such…

Emerging Technologies · Computer Science 2019-07-01 Hyungjin Kim , Hussein Nili , Mahmood Mahmoodi , Dmitri Strukov

This paper demonstrates a hafnium zirconium oxide (HZO)-based ferroelectric NEMS unimorph as the fundamental building block for very low-energy capacitive readout in-memory computing. The reported device consists of a 250 $\mu$m $\times$ 30…

Applied Physics · Physics 2022-11-23 Shubham Jadhav , Ved Gund , Benyamin Davaji , Debdeep Jena , Huili , Xing , Amit Lal

Gold clusters Aun of size n = 2 to 12 atoms were studied by the density-functional theory with an ab-initio pseudopotential and a generalized gradient approximation. Geometry optimizations starting from a number of initial candidate…

Other Condensed Matter · Physics 2007-05-23 Prashant K. Jain

The negatively-charged nitrogen-vacancy center (NV) in diamond forms a versatile system for quantum sensing applications. Combining the advantageous properties of this atomic-sized defect with scanning probe techniques such as atomic force…

Mesoscale and Nanoscale Physics · Physics 2018-12-26 Philipp Fuchs , Michel Challier , Elke Neu

The negatively charged Nitrogen-Vacancy (NV-) center in diamond is one of the most versatile and robust quantum sensors suitable for quantum technologies, including magnetic field and temperature sensors. For precision sensing applications,…

Using a real-space high order finite-difference approach, we investigate the electronic structure of large spherical silicon nanoclusters. Within Kohn-Sham density functional theory and using pseudopotentials, we report the self-consistent…

Materials Science · Physics 2023-06-21 Mehmet Dogan , Kai-Hsin Liou , James R. Chelikowsky

Phase-separated semiconductors containing magnetic nanostructures are relevant systems for the realization of high-density recording media. Here, the controlled strain engineering of Ga$\delta$FeN layers with Fe$_y$N embedded nanocrystals…

Materials Science · Physics 2020-07-27 A. Navarro-Quezada , K. Gas , T. Truglas , V. Bauernfeind , M. Matzer , D. Kreil , A. Ney , H. Groiss , M. Sawicki , A. Bonanni

Nanodiamond crystals containing single color centers have been grown by chemical vapor deposition (CVD). The fluorescence from individual crystallites was directly correlated with crystallite size using a combined atomic force and scanning…

Materials Science · Physics 2015-05-13 J. R. Rabeau , A. Stacey , A. Rabeau , F. Jelezko , I. Mirza , J. Wrachtrup , S. Prawer

Molecular dynamics simulations and density functional theory calculations have been used to demonstrate the possibility of preserving high spin states of the magnetic cores within Ni-based core-shell bimetallic nanoalloys over a wide range…

Materials Science · Physics 2014-12-22 Dennis Palagin , Jonathan P. K. Doye

Pressure is a key parameter for tuning or revealing superconductivity in materials and compounds. Many measurements of superconducting phase transition temperatures have been conducted using diamond anvil cells (DACs), which provide a wide…

Effects of alloying on the electronic and magnetic properties of Mn$_{x}$Co$_{y}$ ($x+y$=$n$=2-5; $x$=0-$n$) and Mn$_2$Co$_{11}$ nanoalloy clusters are investigated using the density functional theory (DFT). Unlike the bulk alloy, the…

Atomic and Molecular Clusters · Physics 2008-07-24 Shreemoyee Ganguly , Mukul Kabir , Soumendu Datta , Biplab Sanyal , Abhijit Mookerjee

We report an easy and broadly applicable method for the controlled self-assembly of atomically precise Au32(nBu3P)12Cl8 nanoclusters into micro-crystals. This enables the determination of emergent optoelectronic properties resulting from…

Resistive random-access memories, also known as memristors, whose resistance can be modulated by the electrically driven formation and disruption of conductive filaments within an insulator, are promising candidates for neuromorphic…

Developing ultra-low-energy superconducting computing and fault-tolerant quantum computing will require scalable superconducting memory. While conventional superconducting logic-based memory cells have facilitated early demonstrations,…

Dispersion corrected density functional theory ($\omega$B97X-D DFT) method is used to study the molecular hydrogen adsorption in $Ni_nMg_m$ $(1\geq n\geq 3,1\geq m\geq9)$ clusters. All these clusters can effectively adsorb multiple $H_2$ in…

Materials Science · Physics 2022-02-28 Bishwajit Boruah , Bulumoni Kalita

The nitrogen vacancy (NV) center in diamond is an increasingly popular quantum sensor for microscopy of electrical current, magnetization, and spins. However, efficient NV-sample integration with a robust, high-quality interface remains an…