Searching for 2D Superconductivity in La2¿xSrxCuO4 Single Crystals

1. Auflage 2019
ISBN: 978-3-030-23063-0
Verlag: Springer

Buch, Englisch, 63 Seiten, Format (B × H): 155 mm x 235 mm, Gewicht: 143 g

Reihe: Springer Theses

A new experimental method – the "Stiffnessometer", is developed to measure elementary properties of a superconductor, including the superconducting stiffness and the critical current. This technique has many advantages over existing methods, such as: the ability to measure these properties while minimally disturbing the system; the ability to measure large penetration depths (comparable to sample size), as necessary when approaching the critical temperature; and the ability to measure critical currents without attaching contacts and heating the sample. The power of this method is demonstrated in a study of the penetration depth of LSCO, where striking evidence is found for two separate critical temperatures for the in-plane and out-of-plane directions. The results in the thesis are novel, important and currently have no theoretical explanation. The stiffnessometer in a tool with great potential to explore new grounds in condensed matter physics.

Zielgruppe

Research

Autoren/Hrsg.

Kapon, Itzik

Fachgebiete

• Technische Wissenschaften Maschinenbau | Werkstoffkunde Technische Mechanik | Werkstoffkunde Materialwissenschaft: Elektronik, Optik
• Naturwissenschaften Physik Elektromagnetismus Halbleiter- und Supraleiterphysik
• Naturwissenschaften Physik Thermodynamik Festkörperphysik, Kondensierte Materie
• Technische Wissenschaften Maschinenbau | Werkstoffkunde Technische Mechanik | Werkstoffkunde Werkstoffprüfung

Inhaltsverzeichnis

Introduction.- Stiffnessometer, a Magnetic-Field-Free Superconducting Stiffness Meter and Its Application.- The Nature of the Phase Transition in the Cuprates as Revealed by the Stffnessometer.- Opening a Nodal Gap by Fluctuating Spin-Density-Wave in Lightly Doped La2-xSrxCuO4.- Conclusions