3 papers
cond-mat.supr-con2025
Low-field all-optical detection of superconductivity using NV nanodiamonds
Omkar Dhungel, Saravanan Sengottuvel, Mariusz Mrozek +5
Nitrogen-vacancy centers in nanodiamond offer a microwave-free, noninvasive platform for probing superconductors via near zero-field cross-relaxation magnetometry. We demonstrate t…
cond-mat.mes-hall2024
Near zero-field microwave-free magnetometry with ensembles of nitrogen-vacancy centers in diamond
Omkar Dhungel, Till Lenz, Muhib Omar +8
We study cross-relaxation features near zero magnetic field with ensembles of nitrogen-vacancy (NV) centers in diamond and examine their properties in samples with a range (0.9 ppm…
cond-mat.mes-hall2024
Near-zero-field microwave-free magnetometry with nitrogen-vacancy centers in nanodiamonds
Omkar Dhungel, Mariusz Mrózek, Till Lenz +6
We study the fluorescence of nanodiamond ensembles as a function of static external magnetic field and observe characteristic dip features close to the zero field with potential fo…