But they also found that even very small magnetic fields were enough to prevent thermal fluctuations from flipping electron spins. (sciencemag.org)
The researchers showed that they could control the transition temperature of the CGT flake using surprisingly small magnetic fields of 0.3 tesla or less. (sciencedaily.com)
This is how the identification of smallest magnetic fields with diamond sensors works: in the tiny diamond tip, two adjacent carbon atoms are being removed and one of the resulting vacancies is replaced by a nitrogen atom. (sciencedaily.com)