Nodeless superconductivity in the infinite-layer electron-doped cuprate superconductor ${\text{Sr}}_{0.9}{\text{La}}_{0.1}{\text{CuO}}_{2}$

Nodeless superconductivity in the infinite-layer electron-doped cuprate superconductor ${Sr}_{0.9} {La}_{0.1} {CuO}_{2}$

R. Khasanov, A. Shengelaya, A. Maisuradze, D. Di Castro, I. M. Savić, S. Weyeneth, M. S. Park, D. J. Jang, S.-I. Lee, and H. Keller

Phys. Rev. B 77, 184512 – Published 19 May 2008

Abstract

We report on measurements of the in-plane magnetic penetration depth $λ_{a b}$ in the infinite-layer electron-doped high-temperature cuprate superconductor ${Sr}_{0.9} {La}_{0.1} {CuO}_{2}$ by means of muon-spin rotation. The observed temperature and magnetic field dependences of $λ_{a b}$ are consistent with the presence of a substantial $s$ -wave component in the superconducting order parameter, in good agreement with the results of tunneling, specific heat, and small-angle neutron scattering experiments.

Received 21 March 2008

DOI:https://doi.org/10.1103/PhysRevB.77.184512

Authors & Affiliations

R. Khasanov^1,*, A. Shengelaya², A. Maisuradze³, D. Di Castro^3,4, I. M. Savić⁵, S. Weyeneth³, M. S. Park⁶, D. J. Jang⁶, S.-I. Lee⁷, and H. Keller³

¹Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
²Physics Institute of Tbilisi State University, Chavchavadze 3, GE-0128 Tbilisi, Georgia
³Physik-Institut der Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
⁴“Coherentia” CNR-INFM and Dipartimento di Fisica, Università di Roma “La Sapienza,” Piazzale A. Moro 2, I-00185 Roma, Italy
⁵Faculty of Physics, University of Belgrade, 11001 Belgrade, Serbia and Montenegro
⁶National Creative Research Initiative Center for Superconductivity and Department of Physics, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea
⁷Department of Physics, Sogang University, Seoul 121-742, Korea

^*rustem.khasanov@psi.ch

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Vol. 77, Iss. 18 — 1 May 2008

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Physical Review B

covering condensed matter and materials physics

Nodeless superconductivity in the infinite-layer electron-doped cuprate superconductor ${Sr}_{0.9} {La}_{0.1} {CuO}_{2}$

R. Khasanov, A. Shengelaya, A. Maisuradze, D. Di Castro, I. M. Savić, S. Weyeneth, M. S. Park, D. J. Jang, S.-I. Lee, and H. Keller

Phys. Rev. B 77, 184512 – Published 19 May 2008

Abstract

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Physical Review B

covering condensed matter and materials physics

Nodeless superconductivity in the infinite-layer electron-doped cuprate superconductor Sr0.9La0.1CuO2

R. Khasanov, A. Shengelaya, A. Maisuradze, D. Di Castro, I. M. Savić, S. Weyeneth, M. S. Park, D. J. Jang, S.-I. Lee, and H. Keller

Phys. Rev. B 77, 184512 – Published 19 May 2008

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Nodeless superconductivity in the infinite-layer electron-doped cuprate superconductor ${Sr}_{0.9} {La}_{0.1} {CuO}_{2}$