Authors:
Y Kobayashi RIKEN Applied Nuclear Physics Laboratory Hirosawa, Wako, Saitama 351 0198 Japan

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M. Kubo The University of Tokyo Department of Chemistry, School of Science Bunkyo, Tokyo 113-0033 Japan

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Y. Yamada Science University of Tokyo Department of Chemistry Shinjuku, Tokyo 162-8601 Japan

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T. Saito Meiji University Tama-ku School of Science and Technology Kawasaki, Kanagawa Prefecture 214-8571 Japan

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H. Ueno RIKEN Applied Nuclear Physics Laboratory Hirosawa, Wako, Saitama 351 0198 Japan

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H. Ogawa RIKEN Applied Nuclear Physics Laboratory Hirosawa, Wako, Saitama 351 0198 Japan

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W. Sato RIKEN Applied Nuclear Physics Laboratory Hirosawa, Wako, Saitama 351 0198 Japan

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K. Yoneda RIKEN Applied Nuclear Physics Laboratory Hirosawa, Wako, Saitama 351 0198 Japan

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H. Watanabe RIKEN Applied Nuclear Physics Laboratory Hirosawa, Wako, Saitama 351 0198 Japan

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N. Imai RIKEN Applied Nuclear Physics Laboratory Hirosawa, Wako, Saitama 351 0198 Japan

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H. Miyoshi RIKEN Applied Nuclear Physics Laboratory Hirosawa, Wako, Saitama 351 0198 Japan

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K. Asahi RIKEN Applied Nuclear Physics Laboratory Hirosawa, Wako, Saitama 351 0198 Japan

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Abstract  

In-beam Mössbauer spectra of 57Fe, decayed from short-lived 57Mn (T1/2 = 1.45 min) implanted into potassium permanganate, KMnO4, were measured at temperatures between 11 K and 130 K. This is the first application of a secondary RI beam to the study of valence states after nuclear transformation. The in-beam Mössbauer spectra obtained below 90 K could be analyzed with two components, a doublet and a singlet. From the calculations of the molecular orbital wave functions, the singlet is suggested to be substitutional 57Fe atoms for Mn-sites in tetrahedral [MnO4] with an unusually high valence state of Fe8+.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)