Effect of pressure on the superconducting critical temperature of La[O 0.89F0.11]FeAs and Ce[O0.88F 0.12]FeAs

D. A. Zocco; J. J. Hamlin; R. E. Baumbach; M. B. Maple; M. A. McGuire; A. S. Sefat; B. C. Sales; R. Jin; D. Mandrus; J. R. Jeffries; S. T. Weir; Y. K. Vohra

doi:10.1016/j.physc.2008.06.010

Effect of pressure on the superconducting critical temperature of La[O _0.89F_0.11]FeAs and Ce[O_0.88F _0.12]FeAs

D. A. Zocco, J. J. Hamlin, R. E. Baumbach, M. B. Maple, M. A. McGuire, A. S. Sefat, B. C. Sales, R. Jin, D. Mandrus, J. R. Jeffries, S. T. Weir, Y. K. Vohra

Correlated Electron Materials

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

We have performed several high-pressure resistivity experiments on the recently discovered superconductors La[O_0.89F_0.11]FeAs and Ce[O_0.88F_0.12]FeAs. At ambient pressure, these materials have superconducting onset temperatures T_c of 28 K and 44 K, respectively. While the T_c of La[0_0.89F_0.11 ]FeAs goes through a maximum between 10 and 68 kbar, in qualitative agreement with a recent report by Takahashi et al., the T_c of Ce[O _0.88F_0.12]FeAs decreases monotonically over the measured pressure range. At 265 kbar, the T_c of the cerium-based compound has been suppressed below 1.1 K.

Original language	English
Pages (from-to)	2229-2232
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	468
Issue number	21
DOIs	https://doi.org/10.1016/j.physc.2008.06.010
State	Published - Oct 1 2008

Funding

Research at University of California, San Diego, was supported by the National Nuclear Security Administration under the Stewardship Science Academic Alliance Program through the US Department of Energy grant number DE-FG52-06NA26205. Research at Oak Ridge National Laboratory is sponsored by the Division of Materials Sciences and Engineering, Office of Basic Energy Sciences. Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the US Department of Energy. Lawrence Livermore National Laboratory is operated by Lawrence Livermore National Security, LLC, for the US Department of Energy, National Nuclear Security Administration under Contract DE-AC52-07NA27344. YKV acknowledges support from the Department of Energy (DOE) National Nuclear Security Administration (NNSA) under Grant No. DE-FG52-06NA26168.

Funders	Funder number
U.S. Department of Energy	DE-FG52-06NA26205
Basic Energy Sciences	DE-AC52-07NA27344
National Nuclear Security Administration	DE-FG52-06NA26168
University of California, San Diego
Division of Materials Sciences and Engineering

Keywords

Designer diamonds
High pressure
Superconductivity. Oxypnictide

Access to Document

10.1016/j.physc.2008.06.010

Cite this

Zocco, D. A., Hamlin, J. J., Baumbach, R. E., Maple, M. B., McGuire, M. A., Sefat, A. S., Sales, B. C., Jin, R., Mandrus, D., Jeffries, J. R., Weir, S. T., & Vohra, Y. K. (2008). Effect of pressure on the superconducting critical temperature of La[O _0.89F_0.11]FeAs and Ce[O_0.88F _0.12]FeAs. Physica C: Superconductivity and its Applications, 468(21), 2229-2232. https://doi.org/10.1016/j.physc.2008.06.010

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abstract = "We have performed several high-pressure resistivity experiments on the recently discovered superconductors La[O0.89F0.11]FeAs and Ce[O0.88F0.12]FeAs. At ambient pressure, these materials have superconducting onset temperatures Tc of 28 K and 44 K, respectively. While the Tc of La[00.89F0.11 ]FeAs goes through a maximum between 10 and 68 kbar, in qualitative agreement with a recent report by Takahashi et al., the Tc of Ce[O 0.88F0.12]FeAs decreases monotonically over the measured pressure range. At 265 kbar, the Tc of the cerium-based compound has been suppressed below 1.1 K.",

keywords = "Designer diamonds, High pressure, Superconductivity. Oxypnictide",

author = "Zocco, {D. A.} and Hamlin, {J. J.} and Baumbach, {R. E.} and Maple, {M. B.} and McGuire, {M. A.} and Sefat, {A. S.} and Sales, {B. C.} and R. Jin and D. Mandrus and Jeffries, {J. R.} and Weir, {S. T.} and Vohra, {Y. K.}",

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Zocco, DA, Hamlin, JJ, Baumbach, RE, Maple, MB, McGuire, MA, Sefat, AS, Sales, BC, Jin, R, Mandrus, D, Jeffries, JR, Weir, ST & Vohra, YK 2008, 'Effect of pressure on the superconducting critical temperature of La[O _0.89F_0.11]FeAs and Ce[O_0.88F _0.12]FeAs', Physica C: Superconductivity and its Applications, vol. 468, no. 21, pp. 2229-2232. https://doi.org/10.1016/j.physc.2008.06.010

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T1 - Effect of pressure on the superconducting critical temperature of La[O 0.89F0.11]FeAs and Ce[O0.88F 0.12]FeAs

AU - Zocco, D. A.

AU - Hamlin, J. J.

AU - Baumbach, R. E.

AU - Maple, M. B.

AU - McGuire, M. A.

AU - Sefat, A. S.

AU - Sales, B. C.

AU - Jin, R.

AU - Mandrus, D.

AU - Jeffries, J. R.

AU - Weir, S. T.

AU - Vohra, Y. K.

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AB - We have performed several high-pressure resistivity experiments on the recently discovered superconductors La[O0.89F0.11]FeAs and Ce[O0.88F0.12]FeAs. At ambient pressure, these materials have superconducting onset temperatures Tc of 28 K and 44 K, respectively. While the Tc of La[00.89F0.11 ]FeAs goes through a maximum between 10 and 68 kbar, in qualitative agreement with a recent report by Takahashi et al., the Tc of Ce[O 0.88F0.12]FeAs decreases monotonically over the measured pressure range. At 265 kbar, the Tc of the cerium-based compound has been suppressed below 1.1 K.

KW - Designer diamonds

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KW - Superconductivity. Oxypnictide

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