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Hyperfine field andbeta-decay of142Pr in PrNi studied by low temperature nuclear orientation |
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| Authors: | K Nishimura I S Oliveira N J Stone Y Isikawa K Shimizu K Sato |
| Institution: | (1) College of Liberal Arts, Toyama University, 930 Toyama, Japan;(2) Department of Physics, Clarendon Laboratory, OX1 3PU Oxford, UK;(3) Faculty of Education, Toyama University, 930 Toyama, Japan;(4) Faculty of Engineering, Yokohama National University, 240 Yokohama, Japan |
| Abstract: | The technique of low-temperature nuclear orientation was used to polarize the ground state of142Pr nuclei in PrNi single crystal. From the temperature dependence of  -ray anisotropy; the hyperfine field was deduced as 290(10) T with a good-site fraction of 83(5)%. The present result confirms that the beta decay of142Pr proceeds mainly via the  J
 =0 matrix element. |
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