Journal
EPL
Volume 88, Issue 4, Pages -Publisher
EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
DOI: 10.1209/0295-5075/88/47008
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Funding
- NSF
- MOST of China
- LANL/LDRD program
- Los Alamos National Security LLC under DOE [DEAC52-06NA25396]
- DOE-BES
- DOE-NNSA
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The effect of pressure on the superconductivity of 111-type Na1-xFeAs is investigated through temperature-dependent electrical-resistance measurements in a diamond anvil cell. The superconducting transition temperature (T-c) increases from 26 K to a maximum of 31 K as the pressure increases from ambient pressure to 3 GPa. Further increasing pressure suppresses T-c drastically. The behavior of pressure-tuned T-c in Na1-xFeAs is much different from that in LixFeAs, although they have the same Cu2Sb-type structure. Copyright (C) EPLA, 2009
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