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Title: Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover

Abstract

The discovery of iron-based superconductors (FeSCs), with the highest transition temperature (T c) up to 55 K, has attracted worldwide research efforts over the past ten years. So far, all these FeSCs structurally adopt FeSe-type layers with a square iron lattice and superconductivity can be generated by either chemical doping or external pressure. Herein, we report the observation of superconductivity in an iron-based honeycomb lattice via pressure-driven spin-crossover. Under compression, the layered FePX 3 (X = S, Se) simultaneously undergo large in-plane lattice collapses, abrupt spin-crossovers, and insulator-metal transitions. Superconductivity emerges in FePSe 3 along with the structural transition and vanishing of magnetic moment with a starting T c ~ 2.5 K at 9.0 GPa and the maximum T c ~ 5.5 K around 30 GPa. The discovery of superconductivity in iron-based honeycomb lattice provides a demonstration for the pursuit of transition-metal-based superconductors via pressure-driven spin-crossover.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3];  [4];  [5];  [6];  [5];  [5];  [1];  [7];  [7];  [1];  [8];  [9];  [10]
  1. Center for High Pressure Science and Technology Advanced Research (HPSTAR), Beijing (China); Carnegie Inst. of Washington, Argonne, IL (United States)
  2. Carnegie Inst. of Washington, Washington, D.C. (United States); Carnegie Inst. of Washington, Argonne, IL (United States)
  3. Peking Univ., Beijing (China); Chongqing Univ., Chongqing (China)
  4. Peking Univ., Beijing (China)
  5. Center for High Pressure Science and Technology Advanced Research (HPSTAR), Beijing (China)
  6. Huanghe Science and Technology College, Zhengzhou (China)
  7. Carnegie Inst. of Washington, Argonne, IL (United States)
  8. Carnegie Inst. of Washington, Washington, D.C. (United States)
  9. Southern Univ. of Science and Technology, Shenzhen (China)
  10. Center for High Pressure Science and Technology Advanced Research (HPSTAR), Beijing (China); Carnegie Inst. of Washington, Washington, D.C. (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF); DOE-NNSA; FOREIGN
OSTI Identifier:
1438853
Grant/Contract Number:  
FG02-99ER45775; NA0001974; AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
ENGLISH
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Wang, Yonggang, Ying, Jianjun, Zhou, Zhengyang, Sun, Junliang, Wen, Ting, Zhou, Yannan, Li, Nana, Zhang, Qian, Han, Fei, Xiao, Yuming, Chow, Paul, Yang, Wenge, Struzhkin, Viktor V., Zhao, Yusheng, and Mao, Ho-kwang. Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover. United States: N. p., 2018. Web. doi:10.1038/s41467-018-04326-1.
Wang, Yonggang, Ying, Jianjun, Zhou, Zhengyang, Sun, Junliang, Wen, Ting, Zhou, Yannan, Li, Nana, Zhang, Qian, Han, Fei, Xiao, Yuming, Chow, Paul, Yang, Wenge, Struzhkin, Viktor V., Zhao, Yusheng, & Mao, Ho-kwang. Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover. United States. doi:10.1038/s41467-018-04326-1.
Wang, Yonggang, Ying, Jianjun, Zhou, Zhengyang, Sun, Junliang, Wen, Ting, Zhou, Yannan, Li, Nana, Zhang, Qian, Han, Fei, Xiao, Yuming, Chow, Paul, Yang, Wenge, Struzhkin, Viktor V., Zhao, Yusheng, and Mao, Ho-kwang. Tue . "Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover". United States. doi:10.1038/s41467-018-04326-1. https://www.osti.gov/servlets/purl/1438853.
@article{osti_1438853,
title = {Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover},
author = {Wang, Yonggang and Ying, Jianjun and Zhou, Zhengyang and Sun, Junliang and Wen, Ting and Zhou, Yannan and Li, Nana and Zhang, Qian and Han, Fei and Xiao, Yuming and Chow, Paul and Yang, Wenge and Struzhkin, Viktor V. and Zhao, Yusheng and Mao, Ho-kwang},
abstractNote = {The discovery of iron-based superconductors (FeSCs), with the highest transition temperature (Tc) up to 55 K, has attracted worldwide research efforts over the past ten years. So far, all these FeSCs structurally adopt FeSe-type layers with a square iron lattice and superconductivity can be generated by either chemical doping or external pressure. Herein, we report the observation of superconductivity in an iron-based honeycomb lattice via pressure-driven spin-crossover. Under compression, the layered FePX3 (X = S, Se) simultaneously undergo large in-plane lattice collapses, abrupt spin-crossovers, and insulator-metal transitions. Superconductivity emerges in FePSe3 along with the structural transition and vanishing of magnetic moment with a starting Tc ~ 2.5 K at 9.0 GPa and the maximum Tc ~ 5.5 K around 30 GPa. The discovery of superconductivity in iron-based honeycomb lattice provides a demonstration for the pursuit of transition-metal-based superconductors via pressure-driven spin-crossover.},
doi = {10.1038/s41467-018-04326-1},
journal = {Nature Communications},
number = 1,
volume = 9,
place = {United States},
year = {2018},
month = {5}
}

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Cited by: 15 works
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Figures / Tables:

Fig. 1 Fig. 1 : The crystal structure and pressure-induced phase transition of FePX3. a, b Ambient crystal structure of FePX3 (X= S, Se) viewed along c- and a/b axis showing the layered structure feature and the Fe2+ honeycomb lattice. c, d Two-dimensional PXRD data showing abrupt pressure-induced changes of the (131)more » and (20-2) peaks for FePS3 and the (113) peak for FePSe3, respectively. e The derived cell volume values as a function of applied pressure for the LP and HP phases of FePS3 and FePSe3. The derived bulk moduli are: B0= 61.1(2) and 162(9) GPa for LP and HP FePS3; B0= 82.8(7) and 201(8) GPa for LP and HP FePSe3, respectively. Error bars represent ± S.D. f The cell parameters of FePSe3 with a pseudo-trigonal unit cell showing an in-plane collapse along with the pressure-induced phase transition« less

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