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Searching for 2D Superconductivity in La2-xSrxCuO4 Single Crystals

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A new experimental method - the 'Stiffnessometer', is developed to measure elementary properties of a ... Weiterlesen
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Beschreibung

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. 

Klappentext
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. 

Inhalt
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

Produktinformationen

Titel: Searching for 2D Superconductivity in La2-xSrxCuO4 Single Crystals
Autor:
EAN: 9783030230616
Digitaler Kopierschutz: Wasserzeichen
Format: E-Book (pdf)
Hersteller: Springer-Verlag GmbH
Genre: Physik, Astronomie
Anzahl Seiten: 63
Veröffentlichung: 11.07.2019
Dateigrösse: 4.0 MB

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