Application of Eu-151 Mössbauer Spectroscopy to Studies of Electric Field Gradients in High-temperature Superconductors

J. Lindén; T. Karlemo; Maarit Karppinen; Toivo Katila; Mikk Lippmaa; Akiko Nara; L. Niinistö; Ilkka Tittonen; K. Ullakko; Hisao Yamauchi

doi:10.1007/BF02072920

Application of Eu-151 Mössbauer Spectroscopy to Studies of Electric Field Gradients in High-temperature Superconductors

J. Lindén, T. Karlemo, Maarit Karppinen, Toivo Katila, Mikk Lippmaa, Akiko Nara, L. Niinistö, Ilkka Tittonen, K. Ullakko, Hisao Yamauchi

Department of Neuroscience and Biomedical Engineering

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

Abstract

The rare-earth site of samples having the compositions (Fe,Cu)Sr2(Eu,Ce)nCu2O4+2 n+z (n=2 and 3) were studied by151Eu Mössbauer spectroscopy. The results obtained are compared with measurements of EuBa2Cu3O7-δ (1:2:3) and Bi2Sr2(Ca1-yEuy)Cu2O8+E (2:2:1:2) samples. The full quadrupole Hamiltonian of the 21.5-keV γ-transition was applied in analyzing the measured spectra. Simultaneous fitting of spectra recorded from crystallites oriented in various directions was used to determine the hyperfine parameters of the n= 2 and 3 samples. Two different electric field gradients, not discernible in simple random crystallite measurements, were obtained for the n=3 series. © 1994 J.C. Baltzer AG, Science Publishers.

Original language	English
Pages (from-to)	1635-1639
Journal	Hyperfine Interactions
Volume	93
DOIs	https://doi.org/10.1007/BF02072920
Publication status	Published - 1994
MoE publication type	A1 Journal article-refereed

Keywords

Eu-151
High-Tc superconductors
Mössbauer spectroscopy

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10.1007/BF02072920

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@article{0996cc6909524943a1b11543fe36ccb2,

title = "Application of Eu-151 M{\"o}ssbauer Spectroscopy to Studies of Electric Field Gradients in High-temperature Superconductors",

abstract = "The rare-earth site of samples having the compositions (Fe,Cu)Sr2(Eu,Ce)nCu2O4+2 n+z (n=2 and 3) were studied by151Eu M{\"o}ssbauer spectroscopy. The results obtained are compared with measurements of EuBa2Cu3O7-δ (1:2:3) and Bi2Sr2(Ca1-yEuy)Cu2O8+E (2:2:1:2) samples. The full quadrupole Hamiltonian of the 21.5-keV γ-transition was applied in analyzing the measured spectra. Simultaneous fitting of spectra recorded from crystallites oriented in various directions was used to determine the hyperfine parameters of the n= 2 and 3 samples. Two different electric field gradients, not discernible in simple random crystallite measurements, were obtained for the n=3 series. {\textcopyright} 1994 J.C. Baltzer AG, Science Publishers.",

keywords = "Eu-151, High-Tc superconductors, M{\"o}ssbauer spectroscopy, Eu-151, High-Tc superconductors, M{\"o}ssbauer spectroscopy, Eu-151, High-Tc superconductors, M{\"o}ssbauer spectroscopy",

author = "J. Lind{\'e}n and T. Karlemo and Maarit Karppinen and Toivo Katila and Mikk Lippmaa and Akiko Nara and L. Niinist{\"o} and Ilkka Tittonen and K. Ullakko and Hisao Yamauchi",

year = "1994",

doi = "10.1007/BF02072920",

language = "English",

volume = "93",

pages = "1635--1639",

journal = "Hyperfine Interactions",

issn = "1572-9540",

publisher = "Springer",

}

TY - JOUR

T1 - Application of Eu-151 Mössbauer Spectroscopy to Studies of Electric Field Gradients in High-temperature Superconductors

AU - Lindén, J.

AU - Karlemo, T.

AU - Karppinen, Maarit

AU - Katila, Toivo

AU - Lippmaa, Mikk

AU - Nara, Akiko

AU - Niinistö, L.

AU - Tittonen, Ilkka

AU - Ullakko, K.

AU - Yamauchi, Hisao

PY - 1994

Y1 - 1994

N2 - The rare-earth site of samples having the compositions (Fe,Cu)Sr2(Eu,Ce)nCu2O4+2 n+z (n=2 and 3) were studied by151Eu Mössbauer spectroscopy. The results obtained are compared with measurements of EuBa2Cu3O7-δ (1:2:3) and Bi2Sr2(Ca1-yEuy)Cu2O8+E (2:2:1:2) samples. The full quadrupole Hamiltonian of the 21.5-keV γ-transition was applied in analyzing the measured spectra. Simultaneous fitting of spectra recorded from crystallites oriented in various directions was used to determine the hyperfine parameters of the n= 2 and 3 samples. Two different electric field gradients, not discernible in simple random crystallite measurements, were obtained for the n=3 series. © 1994 J.C. Baltzer AG, Science Publishers.

AB - The rare-earth site of samples having the compositions (Fe,Cu)Sr2(Eu,Ce)nCu2O4+2 n+z (n=2 and 3) were studied by151Eu Mössbauer spectroscopy. The results obtained are compared with measurements of EuBa2Cu3O7-δ (1:2:3) and Bi2Sr2(Ca1-yEuy)Cu2O8+E (2:2:1:2) samples. The full quadrupole Hamiltonian of the 21.5-keV γ-transition was applied in analyzing the measured spectra. Simultaneous fitting of spectra recorded from crystallites oriented in various directions was used to determine the hyperfine parameters of the n= 2 and 3 samples. Two different electric field gradients, not discernible in simple random crystallite measurements, were obtained for the n=3 series. © 1994 J.C. Baltzer AG, Science Publishers.

KW - Eu-151

KW - High-Tc superconductors

KW - Mössbauer spectroscopy

KW - Eu-151

KW - High-Tc superconductors

KW - Mössbauer spectroscopy

KW - Eu-151

KW - High-Tc superconductors

KW - Mössbauer spectroscopy

U2 - 10.1007/BF02072920

DO - 10.1007/BF02072920

M3 - Article

SN - 1572-9540

VL - 93

SP - 1635

EP - 1639

JO - Hyperfine Interactions

JF - Hyperfine Interactions

ER -

Application of Eu-151 Mössbauer Spectroscopy to Studies of Electric Field Gradients in High-temperature Superconductors

Abstract

Keywords

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