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Hyperfine interaction of13O and23Mg implanted in Pt |
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| Authors: | Matsuta K. Fukuda M. Tanigaki M. Minamisono T. Nojiri Y. Akai H. Izumikawa T. Nakazato M. Mihara M. Yamaguchi T. Harada A. Sasaki M. Miyake T. Onishi T. Minamisono K. Fukao T. Sato K. Matsumoto Y. Ohtsubo T. Fukuda S. Yoshida K. Ozawa A. Momota S. Kobayashi T. Tanihata I. Alonso J. R. Krebs G. F. Symons T. J. M. |
| Affiliation: | (1) Department of Physics, Faculty of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, 560 Osaka, Japan;(2) Department of Physics, Faculty of Science, Osaka University, 1-16 Machikaneyama, Toyonaka, 560 Osaka, Japan;(3) Department of Physics, Faculty of Science, Niigata University, 950-21 Niigata, Japan;(4) RIKEN Wako., 351-01 Saitama, Japan;(5) Lawrence Berkeley Laboratory, 94720 Berkeley, CA, USA |
| Abstract: | The spin relaxation timeT1 for short-lived beta emitters13O and23Mg implanted in Pt have been measured for the first time;T1T13O) = 2.90 ±0.65 Ks andT1T(23Mg) = 1665 ±140 Ks. The Knight shift for13O in Pt was measured at 300 K to beK(13O) = +(4.23 ±0.14) × 10–3. In the case of13O, the Knight shift is unusually large and the relaxation time is unusually fast compared with other interstitial impurities in Pt. A KKR band-structure calculation reproduces the present large Knight shift fairly well. |
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