{"id":4369,"date":"2023-06-14T14:55:00","date_gmt":"2023-06-14T05:55:00","guid":{"rendered":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/?p=4369"},"modified":"2023-09-14T15:04:35","modified_gmt":"2023-09-14T06:04:35","slug":"magnetic-field-imaging-by-hbn-quantum-sensor-nanoarray","status":"publish","type":"post","link":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/news\/4369\/","title":{"rendered":"Magnetic field imaging by hBN quantum sensor nanoarray"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><a href=\"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2023\/09\/press20230614.png\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2023\/09\/press20230614.png\" alt=\"\" class=\"wp-image-4370\" width=\"341\" height=\"269\" srcset=\"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2023\/09\/press20230614.png 681w, https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2023\/09\/press20230614-300x237.png 300w\" sizes=\"(max-width: 341px) 100vw, 341px\" \/><\/a><\/figure><\/div>\n\n\n<p>Placing a sensor close to the target at the nano-level is a central challenge in quantum sensing. We demonstrate magnetic field imaging with a boron vacancy (\u2060\u00a0V<sup>\u2212<\/sup><sub>B<\/sub>\u2060) defects array in hexagonal boron nitride with a few 10\u2009nm thickness.\u00a0V<sup>\u2212<\/sup><sub>B<\/sub>\u00a0sensor spots with a size of (100\u2009nm)<sup>2<\/sup>\u00a0are arranged periodically with nanoscale accuracy using a helium ion microscope and attached tightly to a gold wire. The sensor array allows us to visualize the magnetic field induced by the current in the straight micro wire with a high spatial resolution. Each sensor exhibits a practical sensitivity of\u00a073.6\u2009\u03bcT\/Hz<sup>0.5<\/sup>\u2060, suitable for quantum materials research. Our technique of arranging\u00a0V<sup>\u2212<\/sup><sub>B<\/sub>\u00a0quantum sensors periodically and tightly on measurement targets will maximize their potential.<\/p>\n\n\n\n<p>See below for more information.<\/p>\n\n\n\n<ul>\n<li>Aritcle URL :\u00a0<a href=\"https:\/\/pubs.aip.org\/aip\/apl\/article\/122\/24\/244003\/2896134\/Magnetic-field-imaging-by-hBN-quantum-sensor\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/pubs.aip.org\/aip\/apl\/article\/122\/24\/244003\/2896134\/Magnetic-field-imaging-by-hBN-quantum-sensor<\/a><\/li>\n\n\n\n<li>Kobayashi Lab. :\u00a0<a href=\"https:\/\/meso.phys.s.u-tokyo.ac.jp\/en\/\">https:\/\/meso.phys.s.u-tokyo.ac.jp\/en\/<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"Placing a sensor close to the target at the nano-level is a central challenge in quantum sensing. We demonstra [&hellip;]","protected":false},"author":7,"featured_media":4370,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[11,39],"_links":{"self":[{"href":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-json\/wp\/v2\/posts\/4369"}],"collection":[{"href":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-json\/wp\/v2\/comments?post=4369"}],"version-history":[{"count":1,"href":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-json\/wp\/v2\/posts\/4369\/revisions"}],"predecessor-version":[{"id":4371,"href":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-json\/wp\/v2\/posts\/4369\/revisions\/4371"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-json\/wp\/v2\/media\/4370"}],"wp:attachment":[{"href":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-json\/wp\/v2\/media?parent=4369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-json\/wp\/v2\/categories?post=4369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.phys.s.u-tokyo.ac.jp\/en\/wp-json\/wp\/v2\/tags?post=4369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}