{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Liu CF"],"funding":["French National Research Agency","Chinese University of Hong Kong"],"pagination":["nwaa194"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8288462"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["8(5)"],"pubmed_abstract":["Nitrogen-vacancy (NV) centers in diamond are promising quantum sensors because of their long spin coherence time under ambient conditions. However, their spin resonances are relatively insensitive to non-magnetic parameters such as temperature. A magnetic-nanoparticle-nanodiamond hybrid thermometer, where the temperature change is converted to the magnetic field variation near the Curie temperature, were demonstrated to have enhanced temperature sensitivity ([Formula: see text]) (Wang N, Liu G-Q and Leong W-H <i>et al</i>. <i>Phys Rev X</i> 2018; 8: 011042), but the sensitivity was limited by the large spectral broadening of ensemble spins in nanodiamonds. To overcome this limitation, here we show an improved design of a hybrid nanothermometer using a single NV center in a diamond nanopillar coupled with a single magnetic nanoparticle of copper-nickel alloy, and demonstrate a temperature sensitivity of [Formula: see text]. This hybrid design enables detection of 2 mK temperature changes with temporal resolution of 5 ms. The ultra-sensitive nanothermometer offers a new tool to investigate thermal processes in nanoscale systems."],"journal":["National science review"],"pubmed_title":["Ultra-sensitive hybrid diamond nanothermometer."],"pmcid":["PMC8288462"],"funding_grant_id":["3110126","A-CUHK404/18"],"pubmed_authors":["Xia K","Leong WH","Liu RB","Liu CF","Feng X","Denisenko A","Wrachtrup J","Li Q","Finkler A"],"additional_accession":[]},"is_claimable":false,"name":"Ultra-sensitive hybrid diamond nanothermometer.","description":"Nitrogen-vacancy (NV) centers in diamond are promising quantum sensors because of their long spin coherence time under ambient conditions. However, their spin resonances are relatively insensitive to non-magnetic parameters such as temperature. A magnetic-nanoparticle-nanodiamond hybrid thermometer, where the temperature change is converted to the magnetic field variation near the Curie temperature, were demonstrated to have enhanced temperature sensitivity ([Formula: see text]) (Wang N, Liu G-Q and Leong W-H <i>et al</i>. <i>Phys Rev X</i> 2018; 8: 011042), but the sensitivity was limited by the large spectral broadening of ensemble spins in nanodiamonds. To overcome this limitation, here we show an improved design of a hybrid nanothermometer using a single NV center in a diamond nanopillar coupled with a single magnetic nanoparticle of copper-nickel alloy, and demonstrate a temperature sensitivity of [Formula: see text]. This hybrid design enables detection of 2 mK temperature changes with temporal resolution of 5 ms. The ultra-sensitive nanothermometer offers a new tool to investigate thermal processes in nanoscale systems.","dates":{"release":"2021-01-01T00:00:00Z","publication":"2021 May","modification":"2025-04-19T20:40:17.195Z","creation":"2025-04-19T20:40:17.195Z"},"accession":"S-EPMC8288462","cross_references":{"pubmed":["34691635"],"doi":["10.1093/nsr/nwaa194"]}}