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Article
Open AccessFully Optical Scanning Spectroscopy of the Anticrossing of Electron and Nuclear Spin Levels in a 4H-SiC Crystal
Transitions in a system of interacting electron and nuclear spins in color centers with S = 3/2 in a 4H-SiC crystal with the natural isotopic composition have been detected by fully optical methods at room temper...
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Article
Diagnostics Methods of Local Stresses/Strains in Diamond at Room Temperature Based on Optically Detected Magnetic Resonance of NV Defects
A method for diagnostics of local stresses/strains in diamond at room temperature based on optically detected magnetic resonance (ODMR) of NV defects in a zero magnetic field using low-frequency microwave power m...
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Article
Identification of Optically Active Quartet Spin Centers Based on a Si Vacancy in SiC Promising for Quantum Technologies
Optically active (bright) and optically inactive (dark) quartet S = 3/2 spin color centers including a negatively charged Si vacancy have been identified in silicon carbide using high-frequency electron nuclear d...
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Article
Open AccessDetection of Electron Paramagnetic Resonance Spectra of Optically Induced Carriers with the Properties of the Effective Mass in the WS2 Transition Metal Dichalcogenide
The spin properties of transition metal dichalcogenides are of interest for applications in spintronics. Anisotropic electron paramagnetic resonance spectra in a WS2 single crystal under optical excitation have b...
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Article
ODMR Active Bright Sintered Detonation Nanodiamonds Obtained Without Irradiation
We present the results of study the structure and composition of microcrystalline diamonds obtained by high-pressure high temperature sintering of detonation nanodiamond particles. Using optical detected magne...
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Article
Relaxation Processes and Coherent Spin Manipulations for Triplet Si–C Divacancies in Silicon Carbide Enriched Tenfold in the 13C Isotope
Coherent spin manipulations of ensembles of color centers in the form of neutral VSi–VC divacancies with the spin \(S = 1\) i...
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Article
Open AccessManifestations of Electron–Nuclear Interactions in the High-Frequency ENDOR/ODMR Spectra for Triplet Si–C Divacancies in 13C-Enriched SiC
The frequencies of electron–nuclear interactions with 13C and 29Si nuclei on remote coordination spheres are determined in triplet spin centers in the form of neutral VSi–VC divacancies in a silicon carbide cryst...
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Article
Open AccessInverted fine structure of a 6H-SiC qubit enabling robust spin-photon interface
Controllable solid-state spin qubits are currently becoming useful building blocks for applied quantum technologies. Here, we demonstrate that in a specific type of silicon-vacancy in the 6H-SiC polytype the e...
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Article
Fully Optical Detection of Hyperfine Electron–Nuclear Interactions in Spin Centers in 6H-SiC Crystals with a Modified 13C Isotope Content
Optically induced alignment and polarization of electron and nuclear spins in color centers with electron spin \(S = 3{\text{/}}2\) ...
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Article
High-Temperature Spin Manipulation on Color Centers in Rhombic Silicon Carbide Polytype 21R-SiC
A family of atomic-scale color centers, the spin state of which can be controlled via optical and microwave channels, has been found in the rhombic polytype of silicon carbide 21R-SiC considered as a natural s...
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Article
Features of High-Frequency EPR/ESE/ODMR Spectroscopy of NV-Defects in Diamond
The methods of high-frequency electron paramagnetic resonance (EPR), electron spin echo (ESE) and optically detected magnetic resonance (ODMR) are used to study the unique properties of nitrogen-vacancy (NV) d...
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Article
Influence of Antisite Defects in Yttrium–Aluminum Garnet on Paramagnetic Centers of Ce3+ and Tb3+
In yttrium aluminum garnet (YAG) crystals containing terbium and cerium impurities, along with the main EPR signals of Tb3+ and Се3+ ions located in the dodecahedral sites of the YAG lattice in a regular environm...
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Article
Capabilities of Compact High-Frequency EPR/ESE/ODMR Spectrometers Based on a Series of Microwave Bridges and a Cryogen-Free Magneto-optical Cryostat
A magnetic resonance spectrometer operating at several fixed frequencies in the millimeter range is designed on the basis of a new generation of microwave bridges and a cryogen-free magneto-optical cryogenic s...
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Article
Specific Features of a High-Frequency Electron Paramagnetic Resonance Spectrometer with Frequency Modulation
A high-frequency electron paramagnetic resonance spectrometer with frequency modulation has been developed. Advantages of the applied method for recording spectra of paramagnetic centers with giant fine-struct...
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Article
Optically Detected Magnetic Resonance Spectroscopy in Silicon Carbide using Temperature Sweep
Optically detected magnetic resonance with temperature sweep is developed using the temperature dependence of the spin Hamiltonian parameters of paramagnetic color centers in silicon carbide. The detection is ...
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Article
Application of High-Frequency EPR Spectroscopy for the Identification and Separation of Nitrogen and Vanadium Sites in Silicon Carbide Crystals and Heterostructures
The advantage of the high-frequency spectroscopy of electron paramagnetic resonance (EPR) for the identification of nitrogen donors and a deep compensating vanadium impurity in various crystallographic positio...
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Article
Evidence of the Excitation of Mn2+ Spin-Dependent Photoluminescence in Manganese-Doped Yttrium Aluminum Garnets
Mn2+ ions in yttrium positions have been studied by means of optically detected magnetic resonance (ODMR) via Mn2+ spin-dependent emission in manganese-doped yttrium aluminum garnet crystals. It was shown that th...
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Article
Application of High-Frequency Electron Paramagnetic Resonance/Electron Spin Echo for the Identification of the Impurity Composition and Electronic Structure of Ceramics Based Garnets
Electron paramagnetic resonance (EPR) spectra of Ce3+, Yb3+, Cr3+, and Gd3+ impurity ions in yttrium aluminum garnet Y3Al5O12 (YAG) ceramics were detected and identified at frequency of 94 GHz. The advantage of m...
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Article
A Scanning Optical Quantum Magnetometer Based on the Hole Burning Phenomenon
A scanning optical quantum magnetometer with submicron spatial resolution is proposed that is based on the phenomenon of hole burning in the signal of optically detected magnetic resonance (ODMR) on atomic-siz...
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Article
Spin Diagnostics of Local Polytypic Composition of Silicon Carbide with Submicron Spatial Resolution
A new diagnostic method for evaluation of the local polytypic composition of silicon carbide at room temperature is proposed using known and tabulated zero-field splitting values for spin color centers with S = 3...
