Magnetic and dielectric studies of multiferroic CuO nanoparticles confined to porous glass

E. V. Charnaya; M. K. Lee; C. Tien; V. N. Pak; D. V. Formus; A. L. Pirozerskii; A. I. Nedbai; E. V. Ubyivovk; S. V. Baryshnikov; L. J. Chang

doi:10.1016/j.jmmm.2012.04.046

Magnetic and dielectric studies of multiferroic CuO nanoparticles confined to porous glass

E. V. Charnaya, M. K. Lee, C. Tien, V. N. Pak, D. V. Formus, A. L. Pirozerskii, A. I. Nedbai, E. V. Ubyivovk, S. V. Baryshnikov, L. J. Chang

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

14 Citations (Scopus)

Abstract

Dc magnetization and ac electric permittivity were measured for the CuO-porous glass nanocomposite made and for pressed powder CuO. Magnetization curves showed a bend between two linear segments for both the nanocomposite and bulk cupric oxide at 230 K evidencing that the temperature of the transition from the paramagnetic into multiferroic phase did not change noticeably under nanoconfinement. Results suggested also a reduction of the temperature of the second transition into the collinear antiferromagnetic phase. ZFC and FC magnetizations were found to bifurcate for the nanocomposite and bulk CuO. The bifurcation was accompanied with peaks on ZFC magnetization.

Original language	English
Pages (from-to)	2921-2925
Number of pages	5
Journal	Journal of Magnetism and Magnetic Materials
Volume	324
Issue number	18
DOIs	https://doi.org/10.1016/j.jmmm.2012.04.046
Publication status	Published - 2012 Sep

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2012.04.046

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@article{bc5976e532b74e64994b05a2ab0cad68,

title = "Magnetic and dielectric studies of multiferroic CuO nanoparticles confined to porous glass",

abstract = "Dc magnetization and ac electric permittivity were measured for the CuO-porous glass nanocomposite made and for pressed powder CuO. Magnetization curves showed a bend between two linear segments for both the nanocomposite and bulk cupric oxide at 230 K evidencing that the temperature of the transition from the paramagnetic into multiferroic phase did not change noticeably under nanoconfinement. Results suggested also a reduction of the temperature of the second transition into the collinear antiferromagnetic phase. ZFC and FC magnetizations were found to bifurcate for the nanocomposite and bulk CuO. The bifurcation was accompanied with peaks on ZFC magnetization.",

author = "Charnaya, {E. V.} and Lee, {M. K.} and C. Tien and Pak, {V. N.} and Formus, {D. V.} and Pirozerskii, {A. L.} and Nedbai, {A. I.} and Ubyivovk, {E. V.} and Baryshnikov, {S. V.} and Chang, {L. J.}",

note = "Funding Information: The present work was supported by National Cheng Kung University and by National Science Council, Taiwan.",

year = "2012",

month = sep,

doi = "10.1016/j.jmmm.2012.04.046",

language = "English",

volume = "324",

pages = "2921--2925",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "18",

}

Magnetic and dielectric studies of multiferroic CuO nanoparticles confined to porous glass. / Charnaya, E. V.; Lee, M. K.; Tien, C.; Pak, V. N.; Formus, D. V.; Pirozerskii, A. L.; Nedbai, A. I.; Ubyivovk, E. V.; Baryshnikov, S. V.; Chang, L. J.

In: Journal of Magnetism and Magnetic Materials, Vol. 324, No. 18, 09.2012, p. 2921-2925.

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

TY - JOUR

T1 - Magnetic and dielectric studies of multiferroic CuO nanoparticles confined to porous glass

AU - Charnaya, E. V.

AU - Lee, M. K.

AU - Tien, C.

AU - Pak, V. N.

AU - Formus, D. V.

AU - Pirozerskii, A. L.

AU - Nedbai, A. I.

AU - Ubyivovk, E. V.

AU - Baryshnikov, S. V.

AU - Chang, L. J.

N1 - Funding Information: The present work was supported by National Cheng Kung University and by National Science Council, Taiwan.

PY - 2012/9

Y1 - 2012/9

N2 - Dc magnetization and ac electric permittivity were measured for the CuO-porous glass nanocomposite made and for pressed powder CuO. Magnetization curves showed a bend between two linear segments for both the nanocomposite and bulk cupric oxide at 230 K evidencing that the temperature of the transition from the paramagnetic into multiferroic phase did not change noticeably under nanoconfinement. Results suggested also a reduction of the temperature of the second transition into the collinear antiferromagnetic phase. ZFC and FC magnetizations were found to bifurcate for the nanocomposite and bulk CuO. The bifurcation was accompanied with peaks on ZFC magnetization.

AB - Dc magnetization and ac electric permittivity were measured for the CuO-porous glass nanocomposite made and for pressed powder CuO. Magnetization curves showed a bend between two linear segments for both the nanocomposite and bulk cupric oxide at 230 K evidencing that the temperature of the transition from the paramagnetic into multiferroic phase did not change noticeably under nanoconfinement. Results suggested also a reduction of the temperature of the second transition into the collinear antiferromagnetic phase. ZFC and FC magnetizations were found to bifurcate for the nanocomposite and bulk CuO. The bifurcation was accompanied with peaks on ZFC magnetization.

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DO - 10.1016/j.jmmm.2012.04.046

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EP - 2925

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 18

ER -

Magnetic and dielectric studies of multiferroic CuO nanoparticles confined to porous glass

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