Nature of superconductivity of four-layer HgBa2Ca3Cu4O10+

Mun-Seog Kim; Sung-Ik Lee

doi:10.1117/12.397833

6 September 2000 Nature of superconductivity of four-layer HgBa₂Ca₃Cu₄O_10+δ

Mun-Seog Kim, Sung-Ik Lee

Proceedings Volume 4058, Superconducting and Related Oxides: Physics and Nanoengineering IV; (2000) https://doi.org/10.1117/12.397833
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

We have measured the reversible magnetization of grain-aligned HgBa₂Ca₃Cu₄O_10+(delta ) with the external magnetic fields of 1 T c, and thus the system is a highly anisotropic. This is supported by the two-dimensional scaling behavior of the magnetization at the critical region. From the model of Hao et al. we obtained various superconducting parameters such as the critical fields, the coherence length, and the penetration depth. Especially, the zero- temperature penetration depth (lambda) _ab(0) is estimated to be 157 nm which is the smallest among Hg-based superconductors. We infer that this is due to the large hole concentration within the CuO₂ plane. Finally, we analyzed the fluctuation-induced susceptibility in the low-field regime using the modified Lawrence- Doniach model.

Citation Download Citation

Mun-Seog Kim and Sung-Ik Lee "Nature of superconductivity of four-layer HgBa₂Ca₃Cu₄O_10+δ", Proc. SPIE 4058, Superconducting and Related Oxides: Physics and Nanoengineering IV, (6 September 2000); https://doi.org/10.1117/12.397833

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available