Anomalous ferromagnetic response in Na2Ti3O7 nanopowder obtained by the sonochemical method

Y. Leyet; F. Guerrero; J. Anglada-Rivera; D. Wilson; R. Peña-Garcia; A. Delgado; Y. Guerra; E. Padrón-Hernández; J. Pérez De La Cruz

doi:10.1088/2053-1591/aa6a83

Anomalous ferromagnetic response in Na₂Ti₃O₇ nanopowder obtained by the sonochemical method

Y. Leyet, F. Guerrero, J. Anglada-Rivera, D. Wilson, R. Peña-Garcia, A. Delgado, Y. Guerra, E. Padrón-Hernández, J. Pérez De La Cruz

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6 Citations (Scopus)

Abstract

In this work we analyzed the preparation of high-quality Na₂Ti₃O₇ nanopowders by using the sonochemical method. X-ray diffraction and transmission electron microscopy analyses revealed that a predominant amorphous phase, combined with small nanocrystals are presented in the as-prepared sonicated powders. The purity of the samples has been determined by energy dispersive x-ray analysis, revealing that only Na, Ti, and O are existing in the samples. On the other hand, an unusual Na₂Ti₃O₇ magnetic response is found, typical of a soft ferromagnetic material. The weak ferromagnetic behavior observed in the hysteresis curves, with coercive field of 65 Oe and magnetic saturation of 8.58 × 10^-6 emu g^-1 observed in the Arrott plot, indicated a ferromagnetic second order transition.

Original language	English
Article number	045010
Journal	Materials Research Express
Volume	4
Issue number	4
DOIs	https://doi.org/10.1088/2053-1591/aa6a83
Publication status	Published - Apr 2017
Externally published	Yes

Keywords

NaTiO
Sonochemical method
Weak ferromagnetism

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10.1088/2053-1591/aa6a83

Cite this

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title = "Anomalous ferromagnetic response in Na2Ti3O7 nanopowder obtained by the sonochemical method",

abstract = "In this work we analyzed the preparation of high-quality Na2Ti3O7 nanopowders by using the sonochemical method. X-ray diffraction and transmission electron microscopy analyses revealed that a predominant amorphous phase, combined with small nanocrystals are presented in the as-prepared sonicated powders. The purity of the samples has been determined by energy dispersive x-ray analysis, revealing that only Na, Ti, and O are existing in the samples. On the other hand, an unusual Na2Ti3O7 magnetic response is found, typical of a soft ferromagnetic material. The weak ferromagnetic behavior observed in the hysteresis curves, with coercive field of 65 Oe and magnetic saturation of 8.58 × 10-6 emu g-1 observed in the Arrott plot, indicated a ferromagnetic second order transition.",

keywords = "NaTiO, Sonochemical method, Weak ferromagnetism",

author = "Y. Leyet and F. Guerrero and J. Anglada-Rivera and D. Wilson and R. Pe{\~n}a-Garcia and A. Delgado and Y. Guerra and E. Padr{\'o}n-Hern{\'a}ndez and {P{\'e}rez De La Cruz}, J.",

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year = "2017",

month = apr,

doi = "10.1088/2053-1591/aa6a83",

language = "English",

volume = "4",

journal = "Materials Research Express",

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T1 - Anomalous ferromagnetic response in Na2Ti3O7 nanopowder obtained by the sonochemical method

AU - Leyet, Y.

AU - Guerrero, F.

AU - Anglada-Rivera, J.

AU - Wilson, D.

AU - Peña-Garcia, R.

AU - Delgado, A.

AU - Guerra, Y.

AU - Padrón-Hernández, E.

AU - Pérez De La Cruz, J.

PY - 2017/4

Y1 - 2017/4

N2 - In this work we analyzed the preparation of high-quality Na2Ti3O7 nanopowders by using the sonochemical method. X-ray diffraction and transmission electron microscopy analyses revealed that a predominant amorphous phase, combined with small nanocrystals are presented in the as-prepared sonicated powders. The purity of the samples has been determined by energy dispersive x-ray analysis, revealing that only Na, Ti, and O are existing in the samples. On the other hand, an unusual Na2Ti3O7 magnetic response is found, typical of a soft ferromagnetic material. The weak ferromagnetic behavior observed in the hysteresis curves, with coercive field of 65 Oe and magnetic saturation of 8.58 × 10-6 emu g-1 observed in the Arrott plot, indicated a ferromagnetic second order transition.

AB - In this work we analyzed the preparation of high-quality Na2Ti3O7 nanopowders by using the sonochemical method. X-ray diffraction and transmission electron microscopy analyses revealed that a predominant amorphous phase, combined with small nanocrystals are presented in the as-prepared sonicated powders. The purity of the samples has been determined by energy dispersive x-ray analysis, revealing that only Na, Ti, and O are existing in the samples. On the other hand, an unusual Na2Ti3O7 magnetic response is found, typical of a soft ferromagnetic material. The weak ferromagnetic behavior observed in the hysteresis curves, with coercive field of 65 Oe and magnetic saturation of 8.58 × 10-6 emu g-1 observed in the Arrott plot, indicated a ferromagnetic second order transition.

KW - NaTiO

KW - Sonochemical method

KW - Weak ferromagnetism

UR - http://www.scopus.com/inward/record.url?scp=85018990176&partnerID=8YFLogxK

U2 - 10.1088/2053-1591/aa6a83

DO - 10.1088/2053-1591/aa6a83

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SN - 2053-1591

VL - 4

JO - Materials Research Express

JF - Materials Research Express

IS - 4

M1 - 045010

ER -

Anomalous ferromagnetic response in Na₂Ti₃O₇ nanopowder obtained by the sonochemical method

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Keywords

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