Zero-crossing steps in intrinsic surface junctions of Bi2Sr2CaCu2O8+<delta> single crystals

Hu-Jong Lee; Yong-Joo Doh; Jin-Hee Kim; HyunSik Chang; Sung-Ho Chang; Kyu-Tae Kim; Woo Lee; Jin-Ho Choy

doi:10.1117/12.397838

6 September 2000 Zero-crossing steps in intrinsic surface junctions of Bi₂Sr₂CaCu₂O_8+δ single crystals

Hu-Jong Lee, Yong-Joo Doh, Jin-Hee Kim, HyunSik Chang, Sung-Ho Chang, Kyu-Tae Kim, Woo Lee, Jin-Ho Choy

Proceedings Volume 4058, Superconducting and Related Oxides: Physics and Nanoengineering IV; (2000) https://doi.org/10.1117/12.397838
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

Irradiating a microwave of several tens GHz on Bi₂Sr₂CaCu₂O_8+(delta ) (Bi-2212) single crystals, we observed genuine zero-crossing current steps from intrinsic Josephson junctions forming on the surface of the crystals in contact with normal- metallic (AU) electrodes. The critical current of the surface intrinsic Josephson junction was significantly suppressed due to the proximity contact to the normal-metal electrode, which allowed us to isolate the microwave response of the 'surface junction' from that of rest of the 'inner junctions' in a stack. This indicates that sufficiently small tunneling critical current density is essential to observing the zero-crossing current steps. An attempt to reduce the interlayer coupling using HgI₂-intercalated Bi₂Sr₂CaCu₂O_8+(delta ) single crystals, however, gave rise to coherent fluxon motions.

Citation Download Citation

Hu-Jong Lee, Yong-Joo Doh, Jin-Hee Kim, HyunSik Chang, Sung-Ho Chang, Kyu-Tae Kim, Woo Lee, and Jin-Ho Choy "Zero-crossing steps in intrinsic surface junctions of Bi₂Sr₂CaCu₂O_8+δ single crystals", Proc. SPIE 4058, Superconducting and Related Oxides: Physics and Nanoengineering IV, (6 September 2000); https://doi.org/10.1117/12.397838

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