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We demonstrate fully three-dimensional and patterned localization of nitrogen-vacancy (NV) centers in diamond with coherence times in excess of 1 ms. Nitrogen {\delta}-doping during CVD diamond growth vertically confines nitrogen to 4 nm…

Mesoscale and Nanoscale Physics · Physics 2016-05-04 Claire A. McLellan , Bryan A. Myers , Stephan Kraemer , Kenichi Ohno , David D. Awschalom , Ania C. Bleszynski Jayich

The ability to measure magnetic fields on the nanometre scale at cryogenic temperatures is key to understand magnetism on the quantum level and to develop materials for new storage devices or quantum computers. Nitrogen vacancy (NV) centres…

Detection of AC magnetic fields at the nanoscale is critical in applications ranging from fundamental physics to materials science. Isolated quantum spin defects, such as the nitrogen-vacancy center in diamond, can achieve the desired…

Mesoscale and Nanoscale Physics · Physics 2021-06-25 Guoqing Wang , Yi-Xiang Liu , Yuan Zhu , Paola Cappellaro

Magnetic Ni nanoclusters were synthesized by electron beam deposition utilizing CVD graphene as a scaffold. The subsequent clusters were subjected to high vacuum (5-8 x10-7 torr) annealing between 300 and 600 0C. The chemical stability,…

Chemical Physics · Physics 2015-11-12 Zhenjun Zhang , Akitomo Matsubayashi , Benjamin Grisafe , Ji Ung Lee , James R. Lloyd

Al$_{0.68}$Sc$_{0.32}$N (AlScN) has gained attention for its outstanding ferroelectric properties, including a high coercive field and high remnant polarization. Although AlScN-based ferroelectric field-effect transistors (FETs) for memory…

CMOS VLSI technology is the most dominant integration methodology prevailing in the world today. Various signal-processing blocks are made using analog or digital design techniques in MOS VLSI. An important component is the Memory unit used…

Other Computer Science · Computer Science 2024-02-26 Paramita Barai

Global geometry optimization and time-dependent density functional theory calculations have been used to study the structural evolution and optical properties of (AgAu)n (n=2-6) nanoalloys both as individual clusters and as clusters…

Materials Science · Physics 2017-02-23 Dennis Palagin , Jonathan P. K. Doye

The vibrational density of states (VDOS) of nanoclusters and nanocrystalline materials are derived from molecular-dynamics simulations using empirical tight-binding potentials. The results show that the VDOS inside nanoclusters can be…

Materials Science · Physics 2009-11-10 R. Meyer , L. J. Lewis , S. Prakash , P. Entel

Advanced neural interfaces mediate a bio-electronic link between the nervous system and microelectronic devices, bearing great potential as innovative therapy for various diseases. Spikes from a large number of neurons are recorded leading…

Emerging Technologies · Computer Science 2016-11-30 Isha Gupta , Alexantrou Serb , Ali Khiat , Ralf Zeitler , Stefano Vassanelli , Themistoklis Prodromakis

We consider a mean-field approach to the hole-mediated ferromagnetism in III-V Mn-based semiconductor compounds to discuss the dependence of the hole density on that of Mn sites in Ga_{1-x}Mn_xAs. The hole concentration, p, as a function of…

Materials Science · Physics 2009-11-07 Raimundo R. dos Santos , Luiz E. Oliveira , J. d'Albuquerque e Castro

Non-volatile memories (NVMs) offer negligible leakage power consumption, high integration density, and data retention, but their non-volatility also raises the risk of data exposure. Conventional encryption techniques such as the Advanced…

Cryptography and Security · Computer Science 2025-12-04 Sanwar Ahmed Ovy , Jiahui Duan , Md Ashraful Islam Romel , Franz Muller , Thomas Kampfe , Kai Ni , Sumitha George

The deliberate control over the spatial arrangement of nanostructures is the desired goal for many applications as e.g. in data storage, plasmonics or sensor arrays. Here we present a novel method to assist the self-assembly process of…

Based on experimental and simulation methods we helped develop, we are advancing mechanistic understanding of how self-assembled NC metamaterials can produce distinctive near- and far-field optical properties not readily achievable in…

Nanodiamonds (NDs) are key materials for building nanoscale quantum sensing, imaging and communication devices. Scalable configuration of single NDs on heterogeneous platforms, forming photonic quantum source arrays, will be an essential…

It is found out that there are physical effects, typical of small metal clusters deposited on a non-adsorbing support, that cause a difference between the adsorption properties of sites at the metal cluster surface and those of sites at the…

Statistical Mechanics · Physics 2007-05-23 Maria K. Koleva , L. A. Petrov

The self-assembly of iron dots on the insulating surface of NaCl(001) is investigated experimentally and theoretically. Under proper growth conditions, nanometer-scale magnetic iron dots with remarkably narrow size distributions can be…

Materials Science · Physics 2009-11-07 Zheng Gai , Biao Wu , J. P. Pierce , G. A. Farnan , Dajun Shu , Mu Wang , Zhenyu Zhang , Jian Shen

We designed a device for Convolution Neural Network applications with non-volatile MRAM memory and computing-in-memory co-designed architecture. It has been successfully fabricated using 22nm technology node CMOS Si process. More than 40MB…

Signal Processing · Electrical Eng. & Systems 2018-11-30 Baohua Sun , Daniel Liu , Leo Yu , Jay Li , Helen Liu , Wenhan Zhang , Terry Torng

Magnetic properties with 3 different sizes of Ni nanochains, synthesized by a technique of wet chemical solution, have been investigated experimentally. The sample sizes are 50 nm, 75 nm, and 150 nm with a typical length of a few microns.…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Wangzhi Zheng , Lin He , Chinping Chen , Lin He , Wei Zhou , Chenmin Liu , Lin Guo , Huibin Xu

On-chip magnetic field sensing with Nitrogen-Vacancy (NV) centers in diamond requires scalable integration of 3D waveguides into diamond substrates. Here, we develop a sensing array device with an ensemble of shallow implanted NV centers…

Density functional calculations were performed to systematically study a series of finite and infinite cluster-assembled silicon nanotubes (SiNTs). One-dimensional SiNTs can be prepared by proper assembly of hydrogenated cage-like silicon…

Mesoscale and Nanoscale Physics · Physics 2019-08-17 Lingju Guo , Xiaohong Zheng , Chunsheng Liu , Zhi Zeng