Low field magnetic sensing with anisotropic magnetoresistive sensors

Operation of Honeywell's AMR sensors HMC1001 and HMC1002 has been investigated at low temperature. It has been shown that the magnetoresistive sensor can be used to monitor low magnetic environment in cryogenics. Изучена работа магниторезистивных датчиков HMC1001 и HMC1002 производства фирмы Honeywell при низких температурах. Показано, что датчики могут быть успешно использованы для измерения слабых магнитных полей в криогенной аппаратуре

Axion Dark Matter Search around 4.55 μeV with Dine-Fischler-Srednicki-Zhitnitskii Sensitivity

We report an axion dark matter search at Dine-Fischler-Srednicki-Zhitnitskii sensitivity with the CAPP-12TB haloscope, assuming axions contribute 100% of the local dark matter density. The search excluded the axion-photon coupling gaγγ down to about 6.2×10-16 GeV-1 over the axion mass range between 4.51 and 4.59 μeV at a 90% confidence level. The achieved experimental sensitivity can also exclude Kim-Shifman-Vainshtein-Zakharov axion dark matter that makes up just 13% of the local dark matter density. The CAPP-12TB haloscope will continue the search over a wide range of axion masses. © 2023 authors. Published by the American Physical Society.11Nsciescopu