Hysteresis shift in Fe-filled carbon nanotubes due to γ-Fe

C. Prados; P. Crespo; J. M. González; A. Hernando; J. F. Marco; R. Gancedo; N. Grobert; M. Terrones; R. M. Walton; H. W. Kroto

Hysteresis shift in Fe-filled carbon nanotubes due to γ-Fe

C. Prados, P. Crespo, J. M. González, A. Hernando, J. F. Marco, R. Gancedo, N. Grobert, M. Terrones, R. M. Walton, H. W. Kroto

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123 Scopus citations

Abstract

The phase distribution of high aspect ratio, Fe-filled carbon nanotubes prepared by pyrolyzing a mixture of powered ferrocene and C₆₀ has been determined by means of Mössbauer spectroscopy. Our results for that characterization are closely related to the observation, after field cooling processes, of a hysteresis loop shift and clearly suggest a spatial phase distribution which includes the presence of a γ-Fe/α-Fe interface. The temperature dependence of the hysteresis loop shift is discussed in terms of localized regions at that interface exhibiting uncompensated antiferromagnetism within reduced dimensions.

Original language	English (US)
Article number	113405
Pages (from-to)	1134051-1134054
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	65
Issue number	11
State	Published - Mar 15 2002

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

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title = "Hysteresis shift in Fe-filled carbon nanotubes due to γ-Fe",

abstract = "The phase distribution of high aspect ratio, Fe-filled carbon nanotubes prepared by pyrolyzing a mixture of powered ferrocene and C60 has been determined by means of M{\"o}ssbauer spectroscopy. Our results for that characterization are closely related to the observation, after field cooling processes, of a hysteresis loop shift and clearly suggest a spatial phase distribution which includes the presence of a γ-Fe/α-Fe interface. The temperature dependence of the hysteresis loop shift is discussed in terms of localized regions at that interface exhibiting uncompensated antiferromagnetism within reduced dimensions.",

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T1 - Hysteresis shift in Fe-filled carbon nanotubes due to γ-Fe

AU - Prados, C.

AU - Crespo, P.

AU - González, J. M.

AU - Hernando, A.

AU - Marco, J. F.

AU - Gancedo, R.

AU - Grobert, N.

AU - Terrones, M.

AU - Walton, R. M.

AU - Kroto, H. W.

PY - 2002/3/15

Y1 - 2002/3/15

N2 - The phase distribution of high aspect ratio, Fe-filled carbon nanotubes prepared by pyrolyzing a mixture of powered ferrocene and C60 has been determined by means of Mössbauer spectroscopy. Our results for that characterization are closely related to the observation, after field cooling processes, of a hysteresis loop shift and clearly suggest a spatial phase distribution which includes the presence of a γ-Fe/α-Fe interface. The temperature dependence of the hysteresis loop shift is discussed in terms of localized regions at that interface exhibiting uncompensated antiferromagnetism within reduced dimensions.

AB - The phase distribution of high aspect ratio, Fe-filled carbon nanotubes prepared by pyrolyzing a mixture of powered ferrocene and C60 has been determined by means of Mössbauer spectroscopy. Our results for that characterization are closely related to the observation, after field cooling processes, of a hysteresis loop shift and clearly suggest a spatial phase distribution which includes the presence of a γ-Fe/α-Fe interface. The temperature dependence of the hysteresis loop shift is discussed in terms of localized regions at that interface exhibiting uncompensated antiferromagnetism within reduced dimensions.

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JF - Physical Review B - Condensed Matter and Materials Physics

IS - 11

M1 - 113405

ER -

Hysteresis shift in Fe-filled carbon nanotubes due to γ-Fe

Abstract

All Science Journal Classification (ASJC) codes

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