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From the current literature


The energy gap in the electron excitation spectrum of oxide superconductors


Analysis of results of investigations of the energy gap $\Delta$ in oxide high-$T_c$ superconductors by the methods of the tunnel effect, electron photoemission, IR absorption, Raman scattering of light, and others, indicates satisfactory agreement of results obtained by different methods. For all the oxide superconductors with $T_c\ge$ 30 K the ratio $2\Delta/kT_c$ = 5--6 is significantly greater than the value predicted by the BCS theory. The deviations of the experimental data near the edge and the bottom of the gap from the values that follow from the traditional model for the distribution in energy of the excitations are within the limits of accuracy of the measurements. The data obtained do not contradict the ideas concerning the electron-phonon mechanism of superconductivity in the oxide superconductors that have been investigated.

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Fulltext is also available at DOI: 10.1070/PU1990v033n09ABEH002645
PACS: 74.25.Jb, 74.50.+r, 74.20.Fg, 74.72.Dn, 71.18.+y, 74.25.Gz (all)
DOI: 10.1070/PU1990v033n09ABEH002645
URL: https://ufn.ru/en/articles/1990/9/e/
Citation: Zavaritskii N V "The energy gap in the electron excitation spectrum of oxide superconductors" Sov. Phys. Usp. 33 (9) 775–791 (1990)
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Оригинал: Заварицкий Н В «Энергетическая щель в спектре возбуждений оксидных сверхпроводников» УФН 160 (9) 177–206 (1990); DOI: 10.3367/UFNr.0160.199009e.0177

References (96) ↓ Cited by (11) Similar articles (17)

  1. London F Proc. R. Soc. London A 152 24 (1935)
  2. Bardeen J, Cooper L N, Schrieffer J R Phys. Rev. 106 168 (1956); Bardeen J, Cooper L N, Schrieffer J R Phys. Rev. 108 1175 (1957)
  3. Bogolyubov N. N., Zubarev D. N, Tserkovnikov Yu. L. Dokl. Akad. Nauk SSSR 117 1189 (1956); Bogolyubov N N, Zubarev D N, Tserkovnikov Yu L Sov. Phys. Dokl. 2 535 (1957)
  4. Gor’kov L. P . Zh. Eksp. Teor. Fiz. 34 735 (1958); Gor’kov L P Sov. Phys. JETP 7 505 (1958)
  5. Bednorz J O, Müller K A Z. Phys. B 64 189 (1986)
  6. Giaever I Phys. Rev. Lett. 5 464 (1960); Giaever I Phys. Rev. 126 941 (1962)
  7. Pan S et al. Phys. Rev. B 35 7220 (1987)
  8. Hawley M E et al. Phys. Rev. B 35 7224 (1987)
  9. Kirtley J R, Tsuei G C et al. Phys. Rev. B 35 7216 (1987)
  10. Fein A P, Kirtley J R et al. Phys. Rev. B 37 9738 (1988)
  11. Gijs M A M et al. Phys. Rev. B 37 9837 (1988)
  12. Gonelly R S et al. Phys. Rev. B 39 2261 (1989)
  13. Gallagher M C et al. Phys. Rev. B 37 7846 (1988)
  14. Edgar A J. Phys. C 20 L1009 (1987)
  15. Iguchi I Physica B+C 148 322 (1987)
  16. Van Bentum P J M Phys. Rev. B 36 843 (1987)
  17. Kirtley J R et al. Jpn. J. Appl. Phys. 26 (26-3) (1969)
  18. Zellerandl H R, Giaver I Phys. Rev. 181 798 (1969)
  19. Kirtley J R et al. J. Vac. Sci. Technol. A 6 259 (1988)
  20. Emel’chenko G A i dr. FNT 14 736 (1988); Emel’chenko G A et al. Sov. J. Low Temp. Phys. 14 405 (1988)
  21. Kirtley J R, Tsuei C C et al. Jpn. J. Appl. Phys. 26 997 (1987)
  22. Nag K W et al. Jpn. J. Appl. Phys. 26 993 (1987)
  23. Volodin A. P., Khaikin M S Pis’ma ZhETF 46 466 (1987); Volodin A P, Khaikin M S JETP Lett. 46 588 (1987); Volodin A P, Khaikin M S "High temperature superconductivity from Russia" Progress In High Tc Superconductivity (Eds A I Larkin, N V Zavaritsky) (Singapore: World Scientific, 1989) p. 201
  24. Aleksandrov I. V., Volodin A. P. i dr. Pis’ma ZhETF 49 287 (1989); Aleksandrov I V, Volodin A P et al. JETP Lett. 49 327 (1989)
  25. Volodin A. P. i dr. Pis’ma ZhETF 48 457 (1988); Volodin A P et al. JETP Lett. 48 502 (1988)
  26. Moog E R et al. Low Temp. Phys. 71 393 (1988)
  27. Kirk M D et al. Phys. Rev. B 35 8850 (1987)
  28. Kwo I et al. M2 HTSC Conference July 23-28, 1989, Stanford, Calif. (1989)
  29. Geerk J et al. Z. Phys. B 73 329 (1989)
  30. Cannovacionio M et al. M2 HTSC Conference July 23-28, 1989, Stanford, Calif. (1989)
  31. Cavaler J R et al. M2 HTSC Conference July 23-28, 1989, Stanford, Calif.
  32. Burvitch M et al. Phys. Rev. Lett. 63 1008 (1989)
  33. Tsai J S, Taleuchi I et al. Physica C 153 1385 (1988)
  34. Zavaritskii N V i dr. Pis’ma ZhETF 46 23 (1987), Prilozhenie
  35. Holm V et al. Z. Phys. B 69 173 (1987)
  36. Moreland J et al. Cryogenics 27 277 (1987); Moreland J et al. Phys. Rev. B 35 8711, 8856; Moreland J et al. Phys. Rev. B 35 8856 (1987); Moreland J et al. Jpn. J. Appl. Phys. 26 (Suppl. 26-3) 999 (1987)
  37. Marsiglio R, Hirsh J E Physica C 159 153 (1989)
  38. Akimutsi I et al. Jpn. J. Appl. Phys. 26 (Suppl. 26-3) 995 (1987)
  39. Zasadzinski J F et al. Physica C 158 519 (1989); Zasadzinski J F et al. M2 HTSC Conference July 23-28, 1989, Stanford, Calif. (1989)
  40. Hasegawa T et al. Jpn. J. Appl. Phys. 28 179 (1989)
  41. Viera S et al. Phys. Rev. B 38 9295 (1988)
  42. Ikuta H et al. Jpn. J. Appl. Phys. 27 L1038 (1988)
  43. Lee M et al. Phys. Rev. B 39 801 (1989)
  44. Tao H et al. M2 HTSC Conference July 23-28, 1989, Stanford, Calif. (1989); Tao H, Tsui J S et al. Physica C 158 83 (1989)
  45. Quitmann C et al. USSR-Federal Republic of Germany Bilateral Seminar October 29 - November 10, 1989, Tallinn, USSR (1989)
  46. Muang Q et al. Phys. Rev. B 40 9366 (1988)
  47. Vedeneev S. I. i dr. Pis’ma ZhETF 47 585 (1988); Vedeneev S I et al. JETP Lett. 47 679 (1988)
  48. Morland J et al. Appl. Phys. Lett. 55 1403 (1989)
  49. Chang Y et al. Phys. Rev. B 39 4740 (1989)
  50. Imer J M, Patthey F et al. Phys. Rev. Lett. 62 336 (1989)
  51. Manzke R et al. Europhys. Lett. 9 477 (1989)
  52. Olsen C G et al. Science 245 731 (1989)
  53. Minami F, Kimura T et al. Phys. Rev. B 39 4788 (1989)
  54. Abrikosov A. A., Fal’kovskii L.A. Zh. Eksp. Teor. Fiz. 40 262 (1961); Abrikosov A A, Fal’kovskii L A Sov. Phys. JETP 13 179 (1961)
  55. Timusk T, Tanner D B Physical Properties Of High Tc Superconductors (D Ginsberg, editor) (Singapore: World Scientific Publishing, 1989), Ch. 7
  56. Thomas G A et al. Phys. Rev. Lett. 61 1313 (1988)
  57. Schlesinger Z et al. Physica C 153-155 1734 (1988)
  58. Collins R T et al. Phys. Rev. Lett. 63 422 (1989)
  59. Schutzmann J et al. Europhys. Lett. 8 679 (1989)
  60. Klein M V, Dierker S B Phys. Rev. B 29 4976 (1984)
  61. Abrikosov A A, Fal’kovskii L A Pis’ma ZhETF 46 236 (1987); Abrikosov A A, Fal’kovskii L A JETP Lett. 46 298 (1987)
  62. Dierker S B et al. Phys. Rev. Lett. 50 853 (1983)
  63. Cooper S L et al. Phys. Rev. B 37 5920 (1988)
  64. Hackl R et al. Phys. Rev. B 38 7133 (1988); Hackl R et al. M2 HTSC Conference July 23-28, 1989, Stanford, Calif. (1989)
  65. Thomsen G, Müller P Physical Properties Of High Tc Superconductors (Ed. D Ginsberg) (Singapore: World Scientific, 1989)
  66. Yamanaka A, Kimura T Jpn. J. Appl. Phys. 27 L1902 (1988)
  67. Maksimov A A, Tartakovskii I I, Timofeev V B Pis’ma ZhETF 50 44 (1989); Maksimov A A, Tartakovskii I I, Timofeev V B JETP Lett 50 51 (1989)
  68. Krantz M C, H J Rosen, et al. Preprint (Lawrence Berkeley Lab., 1989)
  69. von Molnar S et al. Phys. Rev. B 37 3762 (1988)
  70. Lesjaunis J C et al. Phys. Lett. A 129 185 (1988)
  71. Kuetzler R et al. Solid State Commun. 65 1529 (1988)
  72. Eckert D J. Low Temp. Phys. 73 241 (1988)
  73. Lozan J M, Mizza K A Physica C 153 1020 (1988)
  74. Kumagai K, Nakamura Y Physica C 152 286 (1988)
  75. Fisher R A, Kim S et al. Phys. Rev. B 38 1940 (1988)
  76. Junod A, Eckert D Physica C 159 245 (1989)
  77. Urbach J S et al. Phys. Rev. B 39 12391 (1989)
  78. Zavaritskii N V, Samoilov A V, Yurgens A A Pis’ma ZhETF 48 221 (1988); Zavaritskii N V, Samoilov A V, Yurgens A A JETP Lett. 48 242 (1988)
  79. Mezon U Fizicheskaya Akustika Vol. 36 (Pod red. P. L. Fabelinskogo) (M.: Mir, 1968), Gl. 6; Mason W P Physical Acoustics; Principles And Methods Vol. 36 (New York: Academic Press, 1964), Ch. 6
  80. Aleksashin B A, Verkhovskii S V i dr. Fiz. Met. Metalloved. 64 392 (1987); Aleksashin B A, Verkhovskiy S V et al. Phys. Met. Metallogr. 64 170 (1987); Aleksashin B A, Verkhovskii S V i dr. Pis’ma ZhETF 46 51 (1987), Prilozhenie; Aleksashin B A, Verkhovskiy S V et al. JETP Lett. 46 S43 (1987)
  81. Lee M et al. Phys. Rev. B 36 2378 (1987)
  82. Seidel H et al. Europhys. Lett. 5 648 (1988)
  83. Warren U W et al. Phys. Rev. Lett. 59 1860 (1987)
  84. Takigawa M et al. Phys. Rev. B 39 7371 (1989)
  85. Ishida K, Kitaoka Y et al. J. Phys. Soc. Jpn. 57 2897 (1988)
  86. Lütgemeier H The Eighth Intern. Conf. on Hyperfine Interactions August, 14 - 19, 1989, Prague
  87. Zavidov A. Yu. i dr. Pis’ma ZhETF 50 179 (1989); Zavidov A Yu et al. JETP Lett. 50 201 (1989)
  88. Porch A et al. J. Phys. F 18 1547 (1988)
  89. Hoevers H F C et al. Physica C 152 105 (1988)
  90. Van Bentum P J M et al. Physica C 153 1378 (1988)
  91. Monien H Phys. Rev. Lett. 63 911 (1998)
  92. Zavaritskii N V Zh. Eksp. Teor. Fiz. 45 1839 (1963); Zavaritskii N V Sov. Phys. JETP 18 1260 (1964); Zavaritskii N V Zh. Eksp. Teor. Fiz. 48 837 (1965); Zavaritskii N V Sov. Phys. JETP 21 557 (1965)
  93. Geilikman B G, Kresin V Z Fiz. Tverd. Tela 7 3294 (1965); Geilikman B T, Kresin V Z Sov. Phys. Solid State 7 2659 (1966)
  94. Mitrovic B et al. Phys. Rev. B 29 184 (1984)
  95. Kussmaul A et al. High Tc-Update 3, No. 17 (1989)
  96. Briceno G High Tc-Update 3, No. 21 (1989)
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