TY  - JOUR
A1  - Astakhov, Georgy V.
A1  - Kraus, Hannes
A1  - Soltamov, V. A.
A1  - Fuchs, Franziska
A1  - Simin, Dimitrij
A1  - Sperlich, Andreas
A1  - Baranov, P. G.
A1  - Dyakonov, Vladimir
T1  - Magnetic field and temperature sensing with atomic-scale spin defects in silicon carbide
N2  - Quantum systems can provide outstanding performance in various sensing applications, ranging from bioscience to nanotechnology. Atomic-scale defects in silicon carbide are very attractive in this respect because of the technological advantages of this material and favorable optical and radio frequency spectral ranges to control these defects. We identified several, separately addressable spin-3/2 centers in the same silicon carbide crystal, which are immune to nonaxial strain fluctuations. Some of them are characterized by nearly temperature independent axial crystal fields, making these centers very attractive for vector magnetometry. Contrarily, the zero-field splitting of another center exhibits a giant thermal shift of −1.1 MHz/K at room temperature, which can be used for thermometry applications. We also discuss a synchronized composite clock exploiting spin centers with different thermal response.
KW  - condensed-matter physics
KW  - quantum physics
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-113025
ER  -