The role of iron in the enhancement of negative magnetoresistance in La 0.8Sr 0.2Fe xCo 1-xO 3-z

Z. Németh; Z. Klencsár; E. Kuzmann; Z. Homonnay; A. Vértes; J. Hakl; K. Vad; S. Mészáros; B. Lackner; K. Kellner; G. Gritzner; J. M. Grenèche; A. Lindbaum; S. K. De

doi:10.1063/1.1923658

The role of iron in the enhancement of negative magnetoresistance in La _0.8Sr _0.2Fe _xCo _1-xO _3-z

Z. Németh, Z. Klencsár, E. Kuzmann, Z. Homonnay, A. Vértes, J. Hakl, K. Vad, S. Mészáros, B. Lackner, K. Kellner, G. Gritzner, J. M. Grenèche, A. Lindbaum, S. K. De

Research output: Chapter in Book/Report/Conference proceedings › Conference contribution › peer-review

Abstract

The role of iron in enhancing the magnetoresistance in the compounds La _0.8Sr _0.2Fe _xCo _1-xO _3-z was investigated by studying the electronic and magnetic structure of La _0.8Sr _0.2Fe _xCo _1-xO _3-z as a function of temperature. For this purpose ⁵⁷Fe transmission Mössbauer spectroscopy, magnetoresistance, as well as AC and DC magnetization measurements were applied. The detailed study of the temperature dependence of ⁵⁷Fe Mössbauer parameters gave possibility to explore correlations between the local electronic and magnetic state of iron and the magnetic susceptibility as well as magnetoresistance in La _0.8Sr _0.2Fe _xCo _1-xO _3-z. On the basis of the obtained results an attempt was made to explain the exotic magnetic and MR properties of these perovskites.

Original language	English
Title of host publication	INDUSTRIAL APPLICATIONS OF THE MOSSBAUER EFFECT
Subtitle of host publication	International Symposium on the Industrial Applications of the Mossbauer Effect
Pages	217-222
Number of pages	6
DOIs	https://doi.org/10.1063/1.1923658
Publication status	Published - 26 Apr 2005
Externally published	Yes
Event	International Conference on the Industrial Applications of the Mossbauer Effect - Madrid, Spain Duration: 4 Oct 2004 → 8 Oct 2004

Publication series

Name	AIP Conference Proceedings
Volume	765
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	International Conference on the Industrial Applications of the Mossbauer Effect
Country/Territory	Spain
City	Madrid
Period	04.10.2004 → 08.10.2004

Access to Document

10.1063/1.1923658

Cite this

Németh, Z., Klencsár, Z., Kuzmann, E., Homonnay, Z., Vértes, A., Hakl, J., Vad, K., Mészáros, S., Lackner, B., Kellner, K., Gritzner, G., Grenèche, J. M., Lindbaum, A., & De, S. K. (2005). The role of iron in the enhancement of negative magnetoresistance in La _0.8Sr _0.2Fe _xCo _1-xO _3-z. In INDUSTRIAL APPLICATIONS OF THE MOSSBAUER EFFECT: International Symposium on the Industrial Applications of the Mossbauer Effect (pp. 217-222). (AIP Conference Proceedings; Vol. 765). https://doi.org/10.1063/1.1923658

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title = "The role of iron in the enhancement of negative magnetoresistance in La 0.8Sr 0.2Fe xCo 1-xO 3-z",

abstract = "The role of iron in enhancing the magnetoresistance in the compounds La 0.8Sr 0.2Fe xCo 1-xO 3-z was investigated by studying the electronic and magnetic structure of La 0.8Sr 0.2Fe xCo 1-xO 3-z as a function of temperature. For this purpose 57Fe transmission M{\"o}ssbauer spectroscopy, magnetoresistance, as well as AC and DC magnetization measurements were applied. The detailed study of the temperature dependence of 57Fe M{\"o}ssbauer parameters gave possibility to explore correlations between the local electronic and magnetic state of iron and the magnetic susceptibility as well as magnetoresistance in La 0.8Sr 0.2Fe xCo 1-xO 3-z. On the basis of the obtained results an attempt was made to explain the exotic magnetic and MR properties of these perovskites.",

author = "Z. N{\'e}meth and Z. Klencs{\'a}r and E. Kuzmann and Z. Homonnay and A. V{\'e}rtes and J. Hakl and K. Vad and S. M{\'e}sz{\'a}ros and B. Lackner and K. Kellner and G. Gritzner and Gren{\`e}che, {J. M.} and A. Lindbaum and De, {S. K.}",

year = "2005",

month = apr,

day = "26",

doi = "10.1063/1.1923658",

language = "English",

isbn = "0735402507",

series = "AIP Conference Proceedings",

pages = "217--222",

booktitle = "INDUSTRIAL APPLICATIONS OF THE MOSSBAUER EFFECT",

note = "International Conference on the Industrial Applications of the Mossbauer Effect ; Conference date: 04-10-2004 Through 08-10-2004",

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Németh, Z, Klencsár, Z, Kuzmann, E, Homonnay, Z, Vértes, A, Hakl, J, Vad, K, Mészáros, S, Lackner, B, Kellner, K, Gritzner, G, Grenèche, JM, Lindbaum, A & De, SK 2005, The role of iron in the enhancement of negative magnetoresistance in La _0.8Sr _0.2Fe _xCo _1-xO _3-z. in INDUSTRIAL APPLICATIONS OF THE MOSSBAUER EFFECT: International Symposium on the Industrial Applications of the Mossbauer Effect. AIP Conference Proceedings, vol. 765, pp. 217-222, International Conference on the Industrial Applications of the Mossbauer Effect, Madrid, Spain, 04.10.2004. https://doi.org/10.1063/1.1923658

The role of iron in the enhancement of negative magnetoresistance in La _0.8Sr _0.2Fe _xCo _1-xO _3-z. / Németh, Z.; Klencsár, Z.; Kuzmann, E. et al.
INDUSTRIAL APPLICATIONS OF THE MOSSBAUER EFFECT: International Symposium on the Industrial Applications of the Mossbauer Effect. 2005. p. 217-222 (AIP Conference Proceedings; Vol. 765).

Research output: Chapter in Book/Report/Conference proceedings › Conference contribution › peer-review

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AU - Klencsár, Z.

AU - Kuzmann, E.

AU - Homonnay, Z.

AU - Vértes, A.

AU - Hakl, J.

AU - Vad, K.

AU - Mészáros, S.

AU - Lackner, B.

AU - Kellner, K.

AU - Gritzner, G.

AU - Grenèche, J. M.

AU - Lindbaum, A.

AU - De, S. K.

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N2 - The role of iron in enhancing the magnetoresistance in the compounds La 0.8Sr 0.2Fe xCo 1-xO 3-z was investigated by studying the electronic and magnetic structure of La 0.8Sr 0.2Fe xCo 1-xO 3-z as a function of temperature. For this purpose 57Fe transmission Mössbauer spectroscopy, magnetoresistance, as well as AC and DC magnetization measurements were applied. The detailed study of the temperature dependence of 57Fe Mössbauer parameters gave possibility to explore correlations between the local electronic and magnetic state of iron and the magnetic susceptibility as well as magnetoresistance in La 0.8Sr 0.2Fe xCo 1-xO 3-z. On the basis of the obtained results an attempt was made to explain the exotic magnetic and MR properties of these perovskites.

AB - The role of iron in enhancing the magnetoresistance in the compounds La 0.8Sr 0.2Fe xCo 1-xO 3-z was investigated by studying the electronic and magnetic structure of La 0.8Sr 0.2Fe xCo 1-xO 3-z as a function of temperature. For this purpose 57Fe transmission Mössbauer spectroscopy, magnetoresistance, as well as AC and DC magnetization measurements were applied. The detailed study of the temperature dependence of 57Fe Mössbauer parameters gave possibility to explore correlations between the local electronic and magnetic state of iron and the magnetic susceptibility as well as magnetoresistance in La 0.8Sr 0.2Fe xCo 1-xO 3-z. On the basis of the obtained results an attempt was made to explain the exotic magnetic and MR properties of these perovskites.

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Y2 - 4 October 2004 through 8 October 2004

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Németh Z, Klencsár Z, Kuzmann E, Homonnay Z, Vértes A, Hakl J et al. The role of iron in the enhancement of negative magnetoresistance in La _0.8Sr _0.2Fe _xCo _1-xO _3-z. In INDUSTRIAL APPLICATIONS OF THE MOSSBAUER EFFECT: International Symposium on the Industrial Applications of the Mossbauer Effect. 2005. p. 217-222. (AIP Conference Proceedings). doi: 10.1063/1.1923658