{"id":29406,"date":"2020-07-17T17:37:00","date_gmt":"2020-07-17T14:37:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/researchers-realize-nanoscale-electrometry-based-on-magnetic-field-resistant-spin-sensors\/"},"modified":"2020-07-17T17:37:00","modified_gmt":"2020-07-17T14:37:00","slug":"researchers-realize-nanoscale-electrometry-based-on-magnetic-field-resistant-spin-sensors","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/researchers-realize-nanoscale-electrometry-based-on-magnetic-field-resistant-spin-sensors\/","title":{"rendered":"#Researchers realize nanoscale electrometry based on magnetic-field-resistant spin sensors"},"content":{"rendered":"

“#Researchers realize nanoscale electrometry based on magnetic-field-resistant spin sensors<\/strong>”<\/p>\n

\n
\n
\n
\"diamond\"<\/img>
\n Credit: Pixabay\/CC0 Public Domain
\n <\/figcaption><\/figure>\n<\/div>\n<\/div>\n

A team led by Prof. Du Jiangfeng, Prof. Shi Fazhan, and Prof. Wang Ya from University of Science<\/a> and Technology<\/a> of China, of the Chinese Academy of Sciences, proposed a robust electrometric method utilizing a continuous dynamic decoupling technique, where the continuous driving fields provide a magnetic-field-resistant dressed frame. The study was published in Physical Review Letters<\/i> on June 19.<\/p>\n

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Characterization of electrical properties and comprehension of the dynamics in nanoscale become significant in the development of modern electronic devices, such as semi-conductor transistors and quantum chips, especially when the feature size has shrunk to several nanometers.<\/p>\n

The nitrogen-vacancy (NV) center in diamond\u2014an atomic-scale spin sensor\u2014has shown to be an attractive electrometer. Electrometry using the NV center would improve various sensing and imaging app<\/a>lications. However, its natural susceptibility to the magnetic field hinders effective detection of the electric field.
\nThe NV center is a defect in diamond, which consists of a substitutional nitrogen and an adjacent vacancy. The NV center benefits from such properties as its convenient state polarization and long coherence time due to the spin-purity environment.
\nIn this study, the researchers used a Ramsey-like sequence to measure the electric field. Also, they measured the dephasing of the near-surface NV centers (8 nm deep from the diamond surface) to evaluate the surface electric noise.
\nThey demonstrated a robust method for nanoscale electrometry based on spin sensors in diamond. Comparing to the electrometry by applying a nonaxial magnet field, their method has the same susceptibility to the electric field, and more robust to the magnetic noise. Therefore, a higher electric-field sensitivity is achievable.
\nTheir electrometry is more applicable in the presence of strong magnetic field inhomogeneity or fluctuation, which is favorable for practical applications using near-surface NV centers\u2014for example: the characterization of multiferroic materials.
\nThey also use this method to study the noise environment of near-surface NV centers. By excluding the magnetic noise, they observed a quantitative relation between the dephasing rate of NV centers and the relative dielectric permittivity of surface covered liquids.
\nThis study helps further understanding of the noise environment of near-surface NV centers, which is essential for a wide range of sensing applications and offers interesting avenues for nanoscale dielectric sensing.<\/p>\n

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More information:<\/strong>
\n Rui Li et al, Nanoscale Electrometry Based on a Magnetic-Field-Resistant Spin Sensor, Physical Review Letters<\/i> (2020). DOI: 10.1103\/PhysRevLett.124.247701\n <\/div>\n

Provided by
\n University of Science and Technology of China<\/p>\n

\n Citation<\/strong>:
\n Researchers realize nanoscale electrometry based on magnetic-field-resistant spin sensors (2020, July 17)
\n retrieved 17 July 2020
\n from https:\/\/phys.org\/news<\/a>\/2020-07-nanoscale-electrometry-based-magnetic-field-resistant-sensors.html<\/p>\n

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“#Researchers realize nanoscale electrometry based on magnetic-field-resistant spin sensors” Credit: Pixabay\/CC0 Public Domain A team led by Prof. Du Jiangfeng, Prof. Shi Fazhan, and Prof. Wang Ya from University of Science and Technology of China, of the Chinese Academy of Sciences, proposed a robust electrometric method utilizing a continuous dynamic decoupling technique, where the continuous…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[22067,40422],"class_list":["post-29406","post","type-post","status-publish","format-standard","hentry","category-sciencee","tag-nanomaterials","tag-researchers-realize-nanoscale-electrometry-based-on-magnetic-field-resistant-spin-sensors"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/29406","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=29406"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/29406\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=29406"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=29406"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=29406"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}