Superconductivity in two-leg spin ladders

L. Leonyuk; G.-J. Babonas; R. Szymczak; H. Szymczak; V. Maltsev; L. Shvanskaya; V. Rybakov

doi:10.1209/epl/i1999-00176-1

All issues

Volume 45 / No 3 (February 1999)

Europhys. Lett., 45 3 (1999) 387-392

Abstract

Issue		Europhys. Lett. Volume 45, Number 3, February 1999


Page(s)		387 - 392
Section		Condensed matter: electronic structure, electrical, magnetic and optical properties
DOI		https://doi.org/10.1209/epl/i1999-00176-1
Published online		01 December 2003

Europhys. Lett., 45 (3), pp. 387-392 (1999)

Superconductivity in two-leg spin ladders $\rm [A{}_2Cu{}_2O{}_3]{}_5[CuO{}_2]{}_7$ $\rm (A=Sr, Ca, Bi, Y, Pb)$

L. Leonyuk¹, G.-J. Babonas², R. Szymczak³, H. Szymczak³, M. Baran A. Rėza³^,2, V. Maltsev¹, L. Shvanskaya¹ and V. Rybakov¹

¹ Moscow State University - 119899 Moscow, Russia
² Semiconductor Physics Institute - 2600 Vilnius, Lithuania
³ Institute of Physics - 02-668 Warsaw, Poland

Received: 11 August 1995
Accepted: 22 November 1995

Abstract

The single crystals with two-leg spin-ladder–type structure were investigated. According to the structural, magnetic, optical and resistivity data obtained, the studied crystals $\rm [A{}_2Cu{}_2O{}_3]{}_5[CuO{}_2]{}_7$ were shown, for the first time, to be high- ${ T_{\rm c}}$ superconductors ( ${ T_{\rm c}}$ =80 K) which belong to the class of cuprates with incommensurate-type structure.

PACS: 74.72.-h – High-T_c compounds / 75.20.-g – Diamagnetism and paramagnetism / 78.20.-e – Optical properties of bulk materials and thin films

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