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Title: Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe

Abstract

The coexistence and competition between superconductivity and electronic orders, such as spin or charge density waves, have been a central issue in high transition-temperature (Tc) superconductors. Unlike other iron-based superconductors, FeSe exhibits nematic ordering without magnetism whose relationship with its superconductivity remains unclear. Moreover, a pressure-induced fourfold increase of Tc has been reported, which poses a profound mystery. Here we report high-pressure magnetotransport measurements in FeSe up to ~15 GPa, which uncover the dome shape of magnetic phase superseding the nematic order. Above ~6 GPa the sudden enhancement of superconductivity (Tc ≤ 38.3 K) accompanies a suppression of magnetic order, demonstrating their competing nature with very similar energy scales. Above the magnetic dome, we find anomalous transport properties suggesting a possible pseudogap formation, whereas linear-in-temperature resistivity is observed in the normal states of the high-Tc phase above 6 GPa. In conclusion, the obtained phase diagram highlights unique features of FeSe among iron-based superconductors, but bears some resemblance to that of high-Tc cuprates.

Authors:
 [1];  [2];  [3];  [2];  [2];  [4];  [2];  [5]; ORCiD logo [5];  [5];  [6];  [7];  [8];  [1]; ORCiD logo [2]
  1. Chinese Academy of Sciences (CAS), Beijing (China)
  2. Univ. of Tokyo, Chiba (Japan)
  3. Chinese Academy of Sciences (CAS), Beijing (China); Yunnan Univ., Kunming (China)
  4. The Univ. of Electro-Communications, Tokyo (Japan)
  5. Kyoto Univ., Kyoto (Japan)
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  8. The Univ. of Tokyo, Chiba (Japan)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1329162
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Journal Issue: 12146; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; magnetic properties and materials; superconducting properties and materials

Citation Formats

Sun, J. P., Matsuura, K., Ye, G. Z., Mizukami, Y., Shimozawa, M., Matsubayashi, K., Yamashita, M., Watashige, T., Kasahara, S., Matsuda, Y., Yan, J. -Q., Sales, B. C., Uwatoko, Y., Cheng, J. -G., and Shibauchi, T. Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe. United States: N. p., 2016. Web. doi:10.1038/ncomms12146.
Sun, J. P., Matsuura, K., Ye, G. Z., Mizukami, Y., Shimozawa, M., Matsubayashi, K., Yamashita, M., Watashige, T., Kasahara, S., Matsuda, Y., Yan, J. -Q., Sales, B. C., Uwatoko, Y., Cheng, J. -G., & Shibauchi, T. Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe. United States. https://doi.org/10.1038/ncomms12146
Sun, J. P., Matsuura, K., Ye, G. Z., Mizukami, Y., Shimozawa, M., Matsubayashi, K., Yamashita, M., Watashige, T., Kasahara, S., Matsuda, Y., Yan, J. -Q., Sales, B. C., Uwatoko, Y., Cheng, J. -G., and Shibauchi, T. Tue . "Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe". United States. https://doi.org/10.1038/ncomms12146. https://www.osti.gov/servlets/purl/1329162.
@article{osti_1329162,
title = {Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe},
author = {Sun, J. P. and Matsuura, K. and Ye, G. Z. and Mizukami, Y. and Shimozawa, M. and Matsubayashi, K. and Yamashita, M. and Watashige, T. and Kasahara, S. and Matsuda, Y. and Yan, J. -Q. and Sales, B. C. and Uwatoko, Y. and Cheng, J. -G. and Shibauchi, T.},
abstractNote = {The coexistence and competition between superconductivity and electronic orders, such as spin or charge density waves, have been a central issue in high transition-temperature (Tc) superconductors. Unlike other iron-based superconductors, FeSe exhibits nematic ordering without magnetism whose relationship with its superconductivity remains unclear. Moreover, a pressure-induced fourfold increase of Tc has been reported, which poses a profound mystery. Here we report high-pressure magnetotransport measurements in FeSe up to ~15 GPa, which uncover the dome shape of magnetic phase superseding the nematic order. Above ~6 GPa the sudden enhancement of superconductivity (Tc ≤ 38.3 K) accompanies a suppression of magnetic order, demonstrating their competing nature with very similar energy scales. Above the magnetic dome, we find anomalous transport properties suggesting a possible pseudogap formation, whereas linear-in-temperature resistivity is observed in the normal states of the high-Tc phase above 6 GPa. In conclusion, the obtained phase diagram highlights unique features of FeSe among iron-based superconductors, but bears some resemblance to that of high-Tc cuprates.},
doi = {10.1038/ncomms12146},
journal = {Nature Communications},
number = 12146,
volume = 7,
place = {United States},
year = {Tue Jul 19 00:00:00 EDT 2016},
month = {Tue Jul 19 00:00:00 EDT 2016}
}

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Cited by: 180 works
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Figures / Tables:

Figure 1 Figure 1: Temperature–pressure phase diagram of bulk FeSe. The structural (Ts, blue), magnetic (Tm, green), and superconducting transition temperatures (Tc, red and black) as a function of hydrostatic pressure in high-quality single crystals determined by anomalies in resistivity ρ(T)

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Interplay of nematic and magnetic orders in FeSe under pressure
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High-temperature superconductivity in one-unit-cell FeSe films
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Dome of magnetic order inside the nematic phase of sulfur-substituted FeSe under pressure
text, January 2017


BCS-like critical fluctuations with limited overlap of Cooper pairs in FeSe
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Suppression of electronic correlations by chemical pressure from FeSe to FeS
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Flux growth in a horizontal configuration: an analogue to vapor transport growth
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Unusual Effects of Be doping in the Iron Based Superconductor FeSe
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Observation of orbital ordering and origin of the nematic order in FeSe
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Theoretical study of impurity-induced magnetism in FeSe
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Charge carrier dynamics of FeSe thin film investigated by terahertz magneto-optical spectroscopy
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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.