Absence of 1/8 anomaly in strained thin films of La2-xBaxCu4+δ

H. Sato, A. Tsukada, M. Naito, Azusa Matsuda

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

Compressive and expansive strain was induced into La2-xBaxCuO4+δ thin films with x=0-0.35 on LaSrAlO4 and SrTiO3 substrates, respectively. For the compressed films, the superconducting transition temperature (Tc) reached 44 K with δ∼0 and 49 K with δ>0, and the Tc-x phase diagram did not show a local minimum at x∼0.125, the so-called "1/8 anomaly." For the expanded films, we observed strong reduction of Tc. We suggest that the absence of the "1/8 anomaly" in the compressed films is due to the c-axis expansion, as well as the in-plane compression, and suppression of the residual resistivity.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume62
Issue number2
Publication statusPublished - 2000
Externally publishedYes

Fingerprint

anomalies
Thin films
thin films
Superconducting transition temperature
Phase diagrams
transition temperature
phase diagrams
retarding
electrical resistivity
expansion
Substrates
strontium titanium oxide

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Absence of 1/8 anomaly in strained thin films of La2-xBaxCu4+δ . / Sato, H.; Tsukada, A.; Naito, M.; Matsuda, Azusa.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 62, No. 2, 2000.

Research output: Contribution to journalArticle

@article{b0ae6864a63146099d48b7ad92268996,
title = "Absence of 1/8 anomaly in strained thin films of La2-xBaxCu4+δ",
abstract = "Compressive and expansive strain was induced into La2-xBaxCuO4+δ thin films with x=0-0.35 on LaSrAlO4 and SrTiO3 substrates, respectively. For the compressed films, the superconducting transition temperature (Tc) reached 44 K with δ∼0 and 49 K with δ>0, and the Tc-x phase diagram did not show a local minimum at x∼0.125, the so-called {"}1/8 anomaly.{"} For the expanded films, we observed strong reduction of Tc. We suggest that the absence of the {"}1/8 anomaly{"} in the compressed films is due to the c-axis expansion, as well as the in-plane compression, and suppression of the residual resistivity.",
author = "H. Sato and A. Tsukada and M. Naito and Azusa Matsuda",
year = "2000",
language = "English",
volume = "62",
journal = "Physical Review B-Condensed Matter",
issn = "0163-1829",
publisher = "American Institute of Physics Publising LLC",
number = "2",

}

TY - JOUR

T1 - Absence of 1/8 anomaly in strained thin films of La2-xBaxCu4+δ

AU - Sato, H.

AU - Tsukada, A.

AU - Naito, M.

AU - Matsuda, Azusa

PY - 2000

Y1 - 2000

N2 - Compressive and expansive strain was induced into La2-xBaxCuO4+δ thin films with x=0-0.35 on LaSrAlO4 and SrTiO3 substrates, respectively. For the compressed films, the superconducting transition temperature (Tc) reached 44 K with δ∼0 and 49 K with δ>0, and the Tc-x phase diagram did not show a local minimum at x∼0.125, the so-called "1/8 anomaly." For the expanded films, we observed strong reduction of Tc. We suggest that the absence of the "1/8 anomaly" in the compressed films is due to the c-axis expansion, as well as the in-plane compression, and suppression of the residual resistivity.

AB - Compressive and expansive strain was induced into La2-xBaxCuO4+δ thin films with x=0-0.35 on LaSrAlO4 and SrTiO3 substrates, respectively. For the compressed films, the superconducting transition temperature (Tc) reached 44 K with δ∼0 and 49 K with δ>0, and the Tc-x phase diagram did not show a local minimum at x∼0.125, the so-called "1/8 anomaly." For the expanded films, we observed strong reduction of Tc. We suggest that the absence of the "1/8 anomaly" in the compressed films is due to the c-axis expansion, as well as the in-plane compression, and suppression of the residual resistivity.

UR - http://www.scopus.com/inward/record.url?scp=13944284541&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=13944284541&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:13944284541

VL - 62

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 0163-1829

IS - 2

ER -