Grain boundaries as weak links: The case of (formula presented) with reference to (formula presented)

S. B. Samanta; H. Narayan; A. Gupta; A. V. Narlikar; T. Muranaka; J. Akimitsu

doi:10.1103/PhysRevB.65.092510

Grain boundaries as weak links: The case of (formula presented) with reference to (formula presented)

S. B. Samanta, H. Narayan, A. Gupta, A. V. Narlikar, T. Muranaka, J. Akimitsu

Research output: Contribution to journal › Article › peer-review

Abstract

The grain boundaries (GB’s) in the intermetallic superconductor (formula presented) interestingly, do not show suppression of supercurrent density. This unexpected behavior has been investigated by a scanning tunneling microscopy/spectroscopy technique at atomic resolution. The GB in (formula presented) is seen as an amorphous region extending from 50 to 200 Å and has a metallic character. This observation supports proximity coupling between the grains, which explains why supercurrent density does not degrade in this material. The results for another intermetallic superconductor (formula presented) having GB’s (average width 30 Å) that are quasi-insulating in nature have also been presented and compared with the former.

Original language	English
Pages (from-to)	1-3
Number of pages	3
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	65
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.65.092510
Publication status	Published - Jan 1 2002
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.65.092510

Cite this

@article{4721df56d927410e8deab49ea48d9fc5,

title = "Grain boundaries as weak links: The case of (formula presented) with reference to (formula presented)",

abstract = "The grain boundaries (GB{\textquoteright}s) in the intermetallic superconductor (formula presented) interestingly, do not show suppression of supercurrent density. This unexpected behavior has been investigated by a scanning tunneling microscopy/spectroscopy technique at atomic resolution. The GB in (formula presented) is seen as an amorphous region extending from 50 to 200 {\AA} and has a metallic character. This observation supports proximity coupling between the grains, which explains why supercurrent density does not degrade in this material. The results for another intermetallic superconductor (formula presented) having GB{\textquoteright}s (average width 30 {\AA}) that are quasi-insulating in nature have also been presented and compared with the former.",

author = "Samanta, {S. B.} and H. Narayan and A. Gupta and Narlikar, {A. V.} and T. Muranaka and J. Akimitsu",

year = "2002",

month = jan,

day = "1",

doi = "10.1103/PhysRevB.65.092510",

language = "English",

volume = "65",

pages = "1--3",

journal = "Physical Review B-Condensed Matter",

issn = "1098-0121",

publisher = "American Physical Society",

number = "9",

}

TY - JOUR

T1 - Grain boundaries as weak links

T2 - The case of (formula presented) with reference to (formula presented)

AU - Samanta, S. B.

AU - Narayan, H.

AU - Gupta, A.

AU - Narlikar, A. V.

AU - Muranaka, T.

AU - Akimitsu, J.

PY - 2002/1/1

Y1 - 2002/1/1

N2 - The grain boundaries (GB’s) in the intermetallic superconductor (formula presented) interestingly, do not show suppression of supercurrent density. This unexpected behavior has been investigated by a scanning tunneling microscopy/spectroscopy technique at atomic resolution. The GB in (formula presented) is seen as an amorphous region extending from 50 to 200 Å and has a metallic character. This observation supports proximity coupling between the grains, which explains why supercurrent density does not degrade in this material. The results for another intermetallic superconductor (formula presented) having GB’s (average width 30 Å) that are quasi-insulating in nature have also been presented and compared with the former.

AB - The grain boundaries (GB’s) in the intermetallic superconductor (formula presented) interestingly, do not show suppression of supercurrent density. This unexpected behavior has been investigated by a scanning tunneling microscopy/spectroscopy technique at atomic resolution. The GB in (formula presented) is seen as an amorphous region extending from 50 to 200 Å and has a metallic character. This observation supports proximity coupling between the grains, which explains why supercurrent density does not degrade in this material. The results for another intermetallic superconductor (formula presented) having GB’s (average width 30 Å) that are quasi-insulating in nature have also been presented and compared with the former.

UR - http://www.scopus.com/inward/record.url?scp=85038285253&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85038285253&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.65.092510

DO - 10.1103/PhysRevB.65.092510

M3 - Article

AN - SCOPUS:85038285253

VL - 65

SP - 1

EP - 3

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 9

ER -

Grain boundaries as weak links: The case of (formula presented) with reference to (formula presented)

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this