RIMSI - Repository of Institute for Multidisciplinary Research
University of Belgrade - Institute for Multidisciplinary Research
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrillic)
    • Serbian (Latin)
  • Login
View Item 
  •   RIMSI
  • Institut za multidisciplinarna istraživanja
  • Radovi istraživača / Researchers’ publications
  • View Item
  •   RIMSI
  • Institut za multidisciplinarna istraživanja
  • Radovi istraživača / Researchers’ publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Anisotropy of the in-plane angular magnetoresistance of electron-doped Sr1-xLaxCuO2 thin films

Authorized Users Only
2010
Authors
Jovanović, Vladimir
Fruchter, L.
Li, Z. Z.
Raffy, H.
Article (Published version)
Metadata
Show full item record
Abstract
Signatures of antiferromagnetism (AF) in the underdoped Ln(2-x)Ce(x)CuO(4) (Ln=Nd, Pr, ...) family are observed even for doping levels for which superconductivity exists. We have looked for a similar property in a different electron-doped cuprate family, Sr1-xLaxCuO2, which consists of CuO2 planes separated by Sr/La atoms, and is exempt of the possible influence of magnetic rare-earth ions. We report in-plane magneto-resistance measurements in the normal state of underdoped, superconducting, c- axis oriented, epitaxial Sr1-xLaxCuO2 thin films. This probe is sensitive to spin arrangement and we find that the in-plane magnetoresistance, which is negative and does not saturate for H lt = 6 T, exhibits an angular dependence when measured upon rotating a magnetic field within the CuO2 planes. The analysis reveals a superposition of fourfold and twofold angular oscillations. Both of these increase in amplitude with increasing field and decreasing T and appear below a temperature T-onset, wh...ich gets higher with decreasing doping levels. Our results demonstrate that these magnetoresistance oscillations, also observed for the Ln(2-x)Ce(x)CuO(4) (Ln=Nd, Pr, ...) family and attributed to an AF signature, are, without ambiguity, a property of CuO2 planes. Besides, these oscillations vary with doping in an unusual way compared to previous results: fourfold oscillations are essentially present in the more underdoped samples while only twofold oscillations are visible in the less underdoped ones. This intriguing observation appears to be a consequence of spin dilution with increasing doping level.

Keywords:
superconductors / electron-doped cuprate / epitaxial thin films / magnetotransport / high magnetic fields
Source:
Physical Review B, 2010, 81, 13
Publisher:
  • Amer Physical Soc, College Pk
Funding / projects:
  • E. C. under an ESRT Marie Curie Program [MEST-CT-2004-514307]

DOI: 10.1103/PhysRevB.81.134520

ISSN: 1098-0121

WoS: 000277207900095

Scopus: 2-s2.0-77955189539
[ Google Scholar ]
18
URI
http://rimsi.imsi.bg.ac.rs/handle/123456789/380
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Institut za multidisciplinarna istraživanja
TY  - JOUR
AU  - Jovanović, Vladimir
AU  - Fruchter, L.
AU  - Li, Z. Z.
AU  - Raffy, H.
PY  - 2010
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/380
AB  - Signatures of antiferromagnetism (AF) in the underdoped Ln(2-x)Ce(x)CuO(4) (Ln=Nd, Pr, ...) family are observed even for doping levels for which superconductivity exists. We have looked for a similar property in a different electron-doped cuprate family, Sr1-xLaxCuO2, which consists of CuO2 planes separated by Sr/La atoms, and is exempt of the possible influence of magnetic rare-earth ions. We report in-plane magneto-resistance measurements in the normal state of underdoped, superconducting, c- axis oriented, epitaxial Sr1-xLaxCuO2 thin films. This probe is sensitive to spin arrangement and we find that the in-plane magnetoresistance, which is negative and does not saturate for H  lt = 6 T, exhibits an angular dependence when measured upon rotating a magnetic field within the CuO2 planes. The analysis reveals a superposition of fourfold and twofold angular oscillations. Both of these increase in amplitude with increasing field and decreasing T and appear below a temperature T-onset, which gets higher with decreasing doping levels. Our results demonstrate that these magnetoresistance oscillations, also observed for the Ln(2-x)Ce(x)CuO(4) (Ln=Nd, Pr, ...) family and attributed to an AF signature, are, without ambiguity, a property of CuO2 planes. Besides, these oscillations vary with doping in an unusual way compared to previous results: fourfold oscillations are essentially present in the more underdoped samples while only twofold oscillations are visible in the less underdoped ones. This intriguing observation appears to be a consequence of spin dilution with increasing doping level.
PB  - Amer Physical Soc, College Pk
T2  - Physical Review B
T1  - Anisotropy of the in-plane angular magnetoresistance of electron-doped Sr1-xLaxCuO2 thin films
IS  - 13
VL  - 81
DO  - 10.1103/PhysRevB.81.134520
ER  - 
@article{
author = "Jovanović, Vladimir and Fruchter, L. and Li, Z. Z. and Raffy, H.",
year = "2010",
abstract = "Signatures of antiferromagnetism (AF) in the underdoped Ln(2-x)Ce(x)CuO(4) (Ln=Nd, Pr, ...) family are observed even for doping levels for which superconductivity exists. We have looked for a similar property in a different electron-doped cuprate family, Sr1-xLaxCuO2, which consists of CuO2 planes separated by Sr/La atoms, and is exempt of the possible influence of magnetic rare-earth ions. We report in-plane magneto-resistance measurements in the normal state of underdoped, superconducting, c- axis oriented, epitaxial Sr1-xLaxCuO2 thin films. This probe is sensitive to spin arrangement and we find that the in-plane magnetoresistance, which is negative and does not saturate for H  lt = 6 T, exhibits an angular dependence when measured upon rotating a magnetic field within the CuO2 planes. The analysis reveals a superposition of fourfold and twofold angular oscillations. Both of these increase in amplitude with increasing field and decreasing T and appear below a temperature T-onset, which gets higher with decreasing doping levels. Our results demonstrate that these magnetoresistance oscillations, also observed for the Ln(2-x)Ce(x)CuO(4) (Ln=Nd, Pr, ...) family and attributed to an AF signature, are, without ambiguity, a property of CuO2 planes. Besides, these oscillations vary with doping in an unusual way compared to previous results: fourfold oscillations are essentially present in the more underdoped samples while only twofold oscillations are visible in the less underdoped ones. This intriguing observation appears to be a consequence of spin dilution with increasing doping level.",
publisher = "Amer Physical Soc, College Pk",
journal = "Physical Review B",
title = "Anisotropy of the in-plane angular magnetoresistance of electron-doped Sr1-xLaxCuO2 thin films",
number = "13",
volume = "81",
doi = "10.1103/PhysRevB.81.134520"
}
Jovanović, V., Fruchter, L., Li, Z. Z.,& Raffy, H.. (2010). Anisotropy of the in-plane angular magnetoresistance of electron-doped Sr1-xLaxCuO2 thin films. in Physical Review B
Amer Physical Soc, College Pk., 81(13).
https://doi.org/10.1103/PhysRevB.81.134520
Jovanović V, Fruchter L, Li ZZ, Raffy H. Anisotropy of the in-plane angular magnetoresistance of electron-doped Sr1-xLaxCuO2 thin films. in Physical Review B. 2010;81(13).
doi:10.1103/PhysRevB.81.134520 .
Jovanović, Vladimir, Fruchter, L., Li, Z. Z., Raffy, H., "Anisotropy of the in-plane angular magnetoresistance of electron-doped Sr1-xLaxCuO2 thin films" in Physical Review B, 81, no. 13 (2010),
https://doi.org/10.1103/PhysRevB.81.134520 . .

DSpace software copyright © 2002-2015  DuraSpace
About RIMSI | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceCommunitiesAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About RIMSI | Send Feedback

OpenAIRERCUB