{"id":119,"date":"2012-05-28T08:01:44","date_gmt":"2012-05-28T05:01:44","guid":{"rendered":"http:\/\/magneticmoments.info\/wp\/?p=119"},"modified":"2012-05-28T08:01:45","modified_gmt":"2012-05-28T05:01:45","slug":"paper-observation-of-239pu-nuclear-magnetic-resonance","status":"publish","type":"post","link":"https:\/\/magneticmoments.info\/wp\/?p=119","title":{"rendered":"[paper] Observation of 239<\/sup>Pu Nuclear Magnetic Resonance"},"content":{"rendered":"

Observation of 239<\/sup>Pu Nuclear Magnetic Resonance<\/em><\/p>\n

H. Yasuoka et al.<\/em><\/p>\n

doi: 10.1126\/science.1220801<\/a><\/p>\n

In principle, the spin-\u00bd plutonium-239 (239<\/sup>Pu) nucleus should be active in nuclear magnetic resonance spectroscopy. However, its signal has eluded detection for the past 50 years. Here, we report observation of a 239<\/sup>Pu resonance from a solid sample of plutonium dioxide (PuO2) subjected to a wide scan of external magnetic field values (3 to 8 tesla) at a temperature of 4 kelvin. By mapping the external field dependence of the measured resonance frequency, we determined the nuclear gyromagnetic ratio 239<\/sup>γ\u03b3n<\/sub>(PuO2)\/2\u03c0 to be 2.856&plusm;0.001 megahertz per tesla (MHz\/T). Assuming a free-ion value for the Pu4+<\/sup> hyperfine coupling constant, we estimated a bare 239<\/sup>γ\u03b3n<\/sub>\/2\u03c0 value of ~2.29 MHz\/T, corresponding to a nuclear magnetic moment of μn<\/sub> \u2248 0.15 μ\u03bcN<\/sub> (where \u03bcN<\/sub> is the nuclear magneton).<\/p>\n","protected":false},"excerpt":{"rendered":"

Observation of 239Pu Nuclear Magnetic Resonance H. Yasuoka et al. doi: 10.1126\/science.1220801 In principle, the spin-\u00bd plutonium-239 (239Pu) nucleus should be active in nuclear magnetic resonance spectroscopy. However, its signal has eluded detection for the past 50 years. Here, we...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[3,1],"tags":[167,8,169,5,168],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6YIb0-1V","jetpack-related-posts":[{"id":39,"url":"https:\/\/magneticmoments.info\/wp\/?p=39","url_meta":{"origin":119,"position":0},"title":"[paper] Magnetic moment of 104Agm and the hyperfine magnetic field of Ag in Fe using nuclear magnetic resonance on oriented nuclei","date":"May 28, 2010","format":false,"excerpt":"Magnetic moment of 104Agm and the hyperfine magnetic field of Ag in Fe using nuclear magnetic resonance on oriented nuclei V.V. 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