Quantum sensing with diamond NV centers under megabar pressures

Abstract

Megabar pressures are of crucial importance for cutting-edge studies of condensed matter physics and geophysics. With the development of diamond anvil cell, laboratory studies of high pressure have entered the megabar era for decades. However, it is still challenging to implement in-situ magnetic sensing under ultrahigh pressures. Here, we demonstrate optically detected magnetic resonance of diamond nitrogen-vacancy (NV) centers, a promising quantum sensor of strain and magnetic fields, up to 1.4 Mbar. We quantify the reduction and blueshifts of NV fluorescence under high pressures. We demonstrate coherent manipulation of NV electron spins and extend its working pressure to the megabar region. These results shed new light on our understanding of diamond NV centers and will benefit quantum sensing under extreme conditions.

9 pages, 4 figures

References in corpus (3)

• High-sensitivity diamond magnetometer with nanoscale resolution
• Future Study of Dense Superconducting Hydrides at High Pressure
• Optically detected magnetic resonance of nitrogen vacancies in a diamond anvil cell using designer diamond anvils

Cited by in corpus (6)

• Imaging the Meissner effect and flux trapping in a hydride superconductor at megabar pressures using a nanoscale quantum sensor
• Characterizing temperature and strain variations with qubit ensembles for their robust coherence protection
• Probing Stress and Magnetism at High Pressures with Two-Dimensional Quantum Sensors
• Imaging the Meissner effect in pressurized bilayer nickelate with integrated multi-parameter quantum sensor
• Evidence for the Meissner effect in the nickelate superconductor La3Ni2O7-delta single crystal using diamond quantum sensors
• Elucidating the Inter-system Crossing of the Nitrogen-Vacancy Center up to Megabar Pressures