caa a22 4500 445380411 CHVBK 20180317143015.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10948-010-1097-x doi (NATIONALLICENCE)springer-10.1007/s10948-010-1097-x NMR Study Under Pressure on the La1111 Pnictides, LaFeAsO1− x F x [Elektronische Daten] [N. Fujiwara, T. Nakano, H. Okada, H. Takahashi, Y. Kamihara, M. Hirano, H. Hosono] The relationship between antiferromagnetic (AF) fluctuation and superconductivity was investigated in the La1111 series, LaFeAsO1−x Fx (x=0.05, 0.08, and 0.14) by examining nuclear relaxation rates (1/T 1) at both ambient pressure and 3.0GPa. Although the AF fluctuation is enhanced by applying pressure in the underdoped regime (x=0.05, and 0.08), the increase in critical transition temperature (T c) is small, whereas T c increases remarkably in the overdoped regime (x=0.14) where the AF fluctuation is absent, suggesting that high T c above 40K originates not from the AF fluctuation but from the density of states at the electron pocket. Springer Science+Business Media, LLC, 2010 NMR nationallicence High pressure nationallicence La 1111 series nationallicence Fujiwara N. Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cyo, Sakyo-ku, 606-8501, Kyoto, Japan aut Nakano T. Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cyo, Sakyo-ku, 606-8501, Kyoto, Japan aut Okada H. Faculty of Engineering, Tohoku Gakuin University, 985-8537, Tagagyo, Japan aut Takahashi H. College of Humanities and Sciences, Nihon University, 156-8550, Tokyo, Japan aut Kamihara Y. TRiP, Japan Science and Technology Agency, 102-0075, Tokyo, Japan aut Hirano M. Frontier Research Center (FRC), Tokyo Institute of Technology, 226-8503, Yokohama, Japan aut Hosono H. Frontier Research Center (FRC), Tokyo Institute of Technology, 226-8503, Yokohama, Japan aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/3(2011-04-01), 1145-1148 1557-1939 24:3<1145 2011 24 10948 https://doi.org/10.1007/s10948-010-1097-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-1097-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fujiwara N. Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cyo, Sakyo-ku, 606-8501, Kyoto, Japan aut NATIONALLICENCE 700 1- Nakano T. Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cyo, Sakyo-ku, 606-8501, Kyoto, Japan aut NATIONALLICENCE 700 1- Okada H. Faculty of Engineering, Tohoku Gakuin University, 985-8537, Tagagyo, Japan aut NATIONALLICENCE 700 1- Takahashi H. College of Humanities and Sciences, Nihon University, 156-8550, Tokyo, Japan aut NATIONALLICENCE 700 1- Kamihara Y. TRiP, Japan Science and Technology Agency, 102-0075, Tokyo, Japan aut NATIONALLICENCE 700 1- Hirano M. Frontier Research Center (FRC), Tokyo Institute of Technology, 226-8503, Yokohama, Japan aut NATIONALLICENCE 700 1- Hosono H. Frontier Research Center (FRC), Tokyo Institute of Technology, 226-8503, Yokohama, Japan aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/3(2011-04-01), 1145-1148 1557-1939 24:3<1145 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer