Nonvolatile nuclear spin memory enables sensor-unlimited nanoscale spectroscopy of small spin clusters.

ABSTRACT: In nanoscale metrology, dissipation of the sensor limits its performance. Strong dissipation has a negative impact on sensitivity, and sensor-target interaction even causes relaxation or dephasing of the latter. The weak dissipation of nitrogen-vacancy (NV) sensors in room temperature diamond enables detection of individual target nuclear spins, yet limits the spectral resolution of nuclear magnetic resonance (NMR) spectroscopy to several hundred Hertz, which typically prevents molecular recognition. Here, we use the NV intrinsic nuclear spin as a nonvolatile classical memory to store NMR information, while suppressing sensor back-action on the target using controlled decoupling of sensor, memory, and target. We demonstrate memory lifetimes up to 4 min and apply measurement and decoupling

SUBMITTER: Pfender M 

PROVIDER: S-EPMC5635067 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature