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Research Progress of FeSe-based Superconductors Containing Ammonia/Organic Molecules Intercalation

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Abstract

As an important part of Fe-based superconductors, FeSe-based superconductors have become a hot field in condensed matter physics. The exploration and preparation of such superconducting materials form the basis of studying their physical properties. With the help of various alkali/alkaline-earth/rare-earth metals, different kinds of ammonia/organic molecules have been intercalated into the FeSe layer to form a large number of FeSe-based superconductors with diverse structures and different layer spacing. Metal cations can effectively provide carriers to the superconducting FeSe layer, thus significantly increasing the superconducting transition temperature. The orientation of organic molecules often plays an important role in structural modification and can be used to fine-tune superconductivity. This review introduces the crystal structures and superconducting properties of several typical FeSe-based superconductors containing ammonia/organic molecules intercalation discovered in recent years, and the effects of FeSe layer spacing and superconducting transition temperature are briefly summarized.

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Fig.1

Reproduced from Ref. [78]. Copyright 2013 Chinese Physical Society and IOP Publishing Ltd)

Fig. 2

Reproduced from Ref. [105]. Copyright 2020 American Chemical Society)

Fig. 3

Reproduced from Ref. [120]. Copyright 2015 Chinese Physical Society and IOP Publishing Ltd)

Fig. 4

Reproduced from Ref. [122]. Copyright 2015 American Physical Society)

Fig. 5

a Reproduced from Ref. [9]. Copyright 2008 National Academy of Science of the USA. b–d Reproduced from Ref. [134]. Copyright 2008 Royal Society of Chemistry

Fig. 6

a Reproduced from Ref. [45]. Copyright 2013 Macmillan Publishers Ltd. b Reproduced from Ref. [80]. Copyright 2014 American Chemical Society

Fig. 7

a,b Reproduced from Ref. [136]. Copyright 2015 Royal Society of Chemistry. c Reproduced from Ref. [78]. Copyright 2013 Chinese Physical Society and IOP Publishing Ltd

Fig. 8

a Reproduced from Ref. [49]. Copyright 2012 IOP Publishing Ltd, Printed in the UK and the USA. b Reproduced from Ref. [137]. Copyright 2016 Elsevier B.V.)

Fig. 9

a Reproduced from Ref. [110]. Copyright 2017 Royal Society of Chemistry. b Reproduced from Ref. [98]. Copyright 2018 American Physical Society)

Fig. 10

Reproduced from Ref. [104]. Copyright 2018 Science China Press and Springer-Verlag GmbH Germany)

Fig. 11

a, b Reproduced from Ref. [89]. Copyright 2017 American Physical Society. c, d Reproduced from Ref. [20]. Copyright 2018 American Physical Society

Fig. 12

a, b Reproduced from Ref. [84]. Copyright 2018 AIP publishing. c, d Reproduced from Ref. [82]. Copyright 2013 American Physical Society

Fig. 13

All of these figures are reproduced from Ref. [85]. Copyright 2019 American Chemical Society

Fig. 14

a, b Reproduced from Ref. [109]. Copyright 2018 American Physical Society. c Reproduced from Ref. [161]. Copyright 2020 EPLA. d Reproduced from Ref. [111]. Copyright 2018 IOP Publishing. e, f Reproduced from Ref. [162]. Copyright 2020 American Physical Society

Fig. 15

a Reproduced from Ref. [107]. Copyright 2021 American Chemical Society. b, c Reproduced from Ref. [108]. Copyright 2021 Chinese Physical Society and IOP Publishing Ltd

Fig. 16

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 21671182, No. 12104249).

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  1. Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, 230026, People’s Republic of China

    Han-Shu Xu, Ruotong Yin & Kaibin Tang

  2. Department of Chemistry, University of Science and Technology of China, Hefei, 230026, People’s Republic of China

    Shusheng Wu, Hui Zheng & Kaibin Tang

  3. Department of Physics, University of Science and Technology of China, Hefei, 230026, People’s Republic of China

    Yuanji Li

  4. College of Physics Science, Qingdao University, Qingdao, 266071, People’s Republic of China

    Xiaoxiong Wang

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Xu, HS., Wu, S., Zheng, H. et al. Research Progress of FeSe-based Superconductors Containing Ammonia/Organic Molecules Intercalation. Top Curr Chem (Z) 380, 11 (2022). https://doi.org/10.1007/s41061-022-00368-8

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