Magnetization in electron-and Mn-doped SrTiO3

D. Choudhury; B. Pal; A. Sharma; S. V. Bhat; D. D. Sarma

doi:10.1038/srep01433

Magnetization in electron-and Mn-doped SrTiO₃

D. Choudhury, B. Pal, A. Sharma, S. V. Bhat, D. D. Sarma^*

^*Corresponding author for this work

Chemistry

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

24 Scopus citations

Abstract

Mn-doped SrTiO_3.0, when synthesized free of impurities, is a paramagnetic insulator with interesting dielectric properties. Since delocalized charge carriers are known to promote ferromagnetism in a large number of systems via diverse mechanisms, we have looked for the possibility of any intrinsic, spontaneous magnetization by simultaneous doping of Mn ions and electrons into SrTiO₃ via oxygen vacancies, thereby forming SrTi 1-x Mn x O 3-δ, to the extent of making the doped system metallic. We find an absence of any enhancement of the magnetization in the metallic sample when compared with a similarly prepared Mn doped, however, insulating sample. Our results, thus, are not in agreement with a recent observation of a weak ferromagnetism in metallic Mn doped SrTiO₃ system.

Original language	English (US)
Article number	1433
Journal	Scientific reports
Volume	3
DOIs	https://doi.org/10.1038/srep01433
State	Published - 2013

Funding

Authors thank Department of Science and Technology, Board of Research in Nuclear Sciences, and Centre for Scientific and Industrial Research, Government of India for funding and support. Authors also thank Dr. A. Sundaresan of Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India for the M(T) data of SrTi0.99Mn0.01O2.96 sample.

ASJC Scopus subject areas

General

Access to Document

10.1038/srep01433

Cite this

@article{75aa1793e78f453f99c341f781ee6564,

title = "Magnetization in electron-and Mn-doped SrTiO3",

abstract = "Mn-doped SrTiO3.0, when synthesized free of impurities, is a paramagnetic insulator with interesting dielectric properties. Since delocalized charge carriers are known to promote ferromagnetism in a large number of systems via diverse mechanisms, we have looked for the possibility of any intrinsic, spontaneous magnetization by simultaneous doping of Mn ions and electrons into SrTiO3 via oxygen vacancies, thereby forming SrTi 1-x Mn x O 3-δ, to the extent of making the doped system metallic. We find an absence of any enhancement of the magnetization in the metallic sample when compared with a similarly prepared Mn doped, however, insulating sample. Our results, thus, are not in agreement with a recent observation of a weak ferromagnetism in metallic Mn doped SrTiO3 system.",

author = "D. Choudhury and B. Pal and A. Sharma and Bhat, {S. V.} and Sarma, {D. D.}",

note = "Funding Information: Authors thank Department of Science and Technology, Board of Research in Nuclear Sciences, and Centre for Scientific and Industrial Research, Government of India for funding and support. Authors also thank Dr. A. Sundaresan of Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India for the M(T) data of SrTi0.99Mn0.01O2.96 sample.",

year = "2013",

doi = "10.1038/srep01433",

language = "English (US)",

volume = "3",

journal = "Scientific reports",

issn = "2045-2322",

publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - Magnetization in electron-and Mn-doped SrTiO3

AU - Choudhury, D.

AU - Pal, B.

AU - Sharma, A.

AU - Bhat, S. V.

AU - Sarma, D. D.

N1 - Funding Information: Authors thank Department of Science and Technology, Board of Research in Nuclear Sciences, and Centre for Scientific and Industrial Research, Government of India for funding and support. Authors also thank Dr. A. Sundaresan of Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India for the M(T) data of SrTi0.99Mn0.01O2.96 sample.

PY - 2013

Y1 - 2013

N2 - Mn-doped SrTiO3.0, when synthesized free of impurities, is a paramagnetic insulator with interesting dielectric properties. Since delocalized charge carriers are known to promote ferromagnetism in a large number of systems via diverse mechanisms, we have looked for the possibility of any intrinsic, spontaneous magnetization by simultaneous doping of Mn ions and electrons into SrTiO3 via oxygen vacancies, thereby forming SrTi 1-x Mn x O 3-δ, to the extent of making the doped system metallic. We find an absence of any enhancement of the magnetization in the metallic sample when compared with a similarly prepared Mn doped, however, insulating sample. Our results, thus, are not in agreement with a recent observation of a weak ferromagnetism in metallic Mn doped SrTiO3 system.

AB - Mn-doped SrTiO3.0, when synthesized free of impurities, is a paramagnetic insulator with interesting dielectric properties. Since delocalized charge carriers are known to promote ferromagnetism in a large number of systems via diverse mechanisms, we have looked for the possibility of any intrinsic, spontaneous magnetization by simultaneous doping of Mn ions and electrons into SrTiO3 via oxygen vacancies, thereby forming SrTi 1-x Mn x O 3-δ, to the extent of making the doped system metallic. We find an absence of any enhancement of the magnetization in the metallic sample when compared with a similarly prepared Mn doped, however, insulating sample. Our results, thus, are not in agreement with a recent observation of a weak ferromagnetism in metallic Mn doped SrTiO3 system.

UR - http://www.scopus.com/inward/record.url?scp=84875145092&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84875145092&partnerID=8YFLogxK

U2 - 10.1038/srep01433

DO - 10.1038/srep01433

M3 - Article

C2 - 23478593

AN - SCOPUS:84875145092

SN - 2045-2322

VL - 3

JO - Scientific reports

JF - Scientific reports

M1 - 1433

ER -