Results 121 to 130 of about 399,544 (300)

Two‐Dimensional Materials as a Multiproperty Sensing Platform

open access: yesAdvanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana   +11 more
wiley   +1 more source

INITIAL STAGES OF CARBON GENESIS IN THE UNIVERSE

open access: yesUniversitas Scientiarum, 2004
The formation possibility of the most widespread carbon compounds had been showed on the base of detonation nanodiamonds thermodynamic data. These reactions may play a key role in the life origin and in the atmosphere formation of the Solar system giant ...
A.L. Vereshchagin
doaj  

Features of searching for the diamond deposits by mineralogical methods in different landscape and geological conditions

open access: yesМінеральні ресурси України
This article has a methodical orientation. There are discussed the features of the use of silt mineralogical methods in the search for native and placer deposits of diamonds.
V. T. Pidvysotskyi   +3 more
doaj   +1 more source

Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals

open access: yesAdvanced Functional Materials, EarlyView.
Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus   +5 more
wiley   +1 more source

The stuff of legend: diamonds and development in southern Africa [PDF]

open access: yes
This essay establishes four propositions. First, the diamond industry has been a positive force for development in southern Africa. Second, jewelry, among the most profitable segments of the industry, is a non-essential luxury, and accordingly, consumer ...
Noland, Marcus, Spector, Brooks
core   +1 more source

Magnetic and Structural Response Tuned by Coexisting Mn Concentration‐Dependent Phases in MnBi2Te4 Thin Film Grown on GaAs(001) by Molecular Beam Epitaxy

open access: yesAdvanced Functional Materials, EarlyView.
The study explores structural and magnetic properties of one of the most recent topological quantum materials (MnBi2Te4). The Mn‐poor structure leads to stacking faults (quintuple layer ‐ QL of Bi2Te3 formation instead of a septuple layer ‐ SL of MnBi2Te4), resulting in a coexistence between weak antiferromagnetism and ferromagnetism.
Wesley F. Inoch   +10 more
wiley   +1 more source

Grain Boundary Space Charge Engineering of Solid Oxide Electrolytes: Model Thin Film Study

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates unprecedented control of grain boundary electrical properties in solid electrolytes. Selective diffusion of cations through grain boundaries in thin films enables 12 orders of magnitude variation in ionic resistance, proving that systematic chemical modification of grain boundary electrical properties is feasible.
Thomas Defferriere   +5 more
wiley   +1 more source

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

open access: yesAdvanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra   +8 more
wiley   +1 more source

Specific features of diamonds from modern placers in the zone of high-productive kimberlite diatremes distribution

open access: yesМінеральні ресурси України, 2016
Zoning of areas by degree of their prospectivity was carried out by outlined complex investigations and generalization of available material on investigating diamond from modern placers of Central-Siberian sub-province and their comparison with crystals ...
M. M. Zinchuk, V. I. Koptil
doaj  

Diamond Jubilee [PDF]

open access: yesJournal of Pastoral Care & Counseling: Advancing theory and professional practice through scholarly and reflective publications, 2021
openaire   +2 more sources

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