Abstract
We have discovered reproducible and stable bulk superconductivity in the Tl-Ca-Ba-Cu-0 system with zero resistance above 120 K. Magnetic and electronic transport properties including thermoelectric power and critical current of the new superconductors are presented. The Tl-Ca-Ba-Cu-O system can form a number of superconducting compounds, including TlmCan-iBa2CunOi.5m+2n+i with m = 1 and 2, and n = 1, 2, 3, and 4. The Tc increases with m and n. The 2223 (Tl:Ca:Ba:Cu) phase has the highest Tc (125 K) to date. We present Josephson junction studies on the 2223 phase showing the existence of electron pair supercurrents and demonstrating weak link behavior at 77 K. We discuss an unusual levitation phenomenon in which the 2223 phase can be suspended, above, below, or to the side of a ring shaped magnet. We also discuss a new Tl-based superconducting system, in which Sr replaces the Ba, the Tl-Ca-Sr-Cu-O system.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
J.G.Bednors and R.A.Müller, Z. Phys. B 64, 189 (1986).
M.K.Wu, J.R.Ashburn, C.T.Torng, P.H.Hor, R.L.Meng, L.Gao, Z.J.Huang, Y.Q.Wang, and C.W.Chu, Phys. Rev. Lett. 58, 908 (1987).
Z.Z.Sheng and A.M.Hermann, Nature 222, 55 (1988).
Z.Z.Sheng, A.M.Hermann, A.El Ali, C.Almaßon, J.Estrada, T.Datta, and R.J.Matson, Phys. Rev. Lett. 60, 937 (1988).
H.Maeda, Y.Tanaka, M.Fukutomi, and T.Asano, Jpn. J. Appl. Phys. Lett. 21, L207 (1988).
C.W.Chu, J.Bechtold, L.Gao, P.H.Hor, Z.J.Huang, R.L.Meng, Y.Y.Sun, Y.Q.Wang, and Y.Y.Xue, Phys. Rev. Lett. 60, 941 (1988).
Z.Z.Sheng and A.M.Hermann, Nature 222, 138 (1988).
Z.Z.Sheng, W.Kiehl, J.Bennett, A.El Ali, D.Marsh, G.D.Mooney, F.Arammash, J.Smith, D.Viar, and A.M.Hermann, Appl. Phys. lett. 52, 1738 (1988).
A.M.Hermann, Z.Z.Sheng, D.C.Vier, S.Schultz, and S.B.Oseroff, Phys. Rev.B 37, 9742 (1988).
R.M.Hasen, L.W.Finger, R.J.Angel, C.T.Prewitt, N.L.Ross, C.G.Hadidiacos, P.J.Heaney, D.R.Veblen, Z.Z.Sheng, A.El Ali, and A,M.Hermann, Phys. Rev. Lett. 60, 1657 (1988).
L.Gao, Z.J.Huang, R.L.Meng, P.H.Hor, J.Bechtold, Y.Y.Sun, C.W.Chu, Z.Z.Sheng, and A.M.Hermann, Nature 332, 623 (1988).
C.C.Torardi, M.A.Subramanian, J.C.Calabrese, J.Gopalakrishnan, E,M.McCarron, K.J.Morrissey, T.R.Askew, R.B.Flippen, U.Chowdhry, and A.M.Sleight, Phys. Rev. B. (in press, 1988).
M.A.Subramanian, J.C.Calabrese, C.C.Torardi, J.Gopalakrishnan, T.R.Askew, R.B.Flippen, K.J.Morrissey, U.Chowdhry, and A.M.Sleight, Mature 332, 420 (1988).
C.C.Torardi, M.A.Subramanian, J.C.Calabrese, J.Gopalakrishnan, K.J.Morrissey, T.R.Askew, R.B.Flippen, U.Chowdhry, and A.M.Sleight, Science 240, 631 (1988).
S.S.P.Parkin, V.Y.Lee, E.M.Engler, A.I.Nazzal, T.C.Huang, G.Gorman, R.Savoy, and R.Beyers, Phys. Rev. Lett. 60, 2539 (1988).
P.Grant (unpublished).
Y. Luo, Y.L.Zhang, J.K.Liang, and K.K.Fung (submitted, 1988).
R.Beyers, S.S.P.Parkin, V.Y.Lee, A.I.Nazzal, R.Savoy, G.Gorman, T.C.Huang, and S.La Placa (submitted, 1988).
N.Mitra, J.Trefny, B.Yarar, G.Pine, Z.Z.Sheng, and A.M.Hermann, Phys.Rev.B. (to be published, 1988).
N.Mitra, J.Trefny, M.Young, and B.Yarar, Phys, Rev. B 36, 5581 (1987).
See Superconductor Week 2, No.18 (May 9, 1988), p.1.
E,Hellroan, E.M.Gyorgy, D.W. Johnson, Jr., H.M.O’Bryan, and R.C.Sherwood, J.Appl.Phys. 63. 447 (1988).
W.G.Harter, A.M.Hermann, and Z.Z.Sheng, Appl. Phys. lett. (te be published, 1988).
P.N.Peters, R.C.Sisk, E.W.Urban, C.Y.Huang, and M.K.Wu, Appl. Phys. lett. 52. 2066 (1988).
S.Schultz et al. (unpublished)
W.Eideloth, F.S.Barnes, Z.Z.Sheng, and A.M.Hermann (submitted, 1988).
W.Eideloth, F.S.Barnes, S.Geller, L.C.Xu, and E.A.Kraut (submitted, 1988).
A.Barone, G.Paterno, Physica and Applications of the Josephson Effect, (Wiley, New York, 1982).
Z.Z.Sheng, A.M.Hermann, D.C.Vier, S.S.Schultz, and S.B.Oseroff, D.J.George, and R.M.Hazen Phvs.Rev. B (to be published, 1988).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1989 Springer Japan
About this paper
Cite this paper
Hermann, A.M., Sheng, Z.Z. (1989). Tl-Based Cu-O High Temperature Superconductors. In: Kitazawa, K., Ishiguro, T. (eds) Advances in Superconductivity. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68084-0_129
Download citation
DOI: https://doi.org/10.1007/978-4-431-68084-0_129
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-68086-4
Online ISBN: 978-4-431-68084-0
eBook Packages: Springer Book Archive