Structural, magnetic and151Eu Mössbauer studies on EuTCu4 (T-Al, Pd and Ag) compounds

D. T. Adroja; R. Nagarajan; S. K. Malik; B. D. Padalia; R. Vijayaraghavan

doi:10.1007/BF02400446

Structural, magnetic and¹⁵¹Eu Mössbauer studies on EuTCu₄ (T-Al, Pd and Ag) compounds

D. T. Adroja, R. Nagarajan, S. K. Malik, B. D. Padalia, R. Vijayaraghavan

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

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Abstract

New ternary compounds having the formula EuTCu₄ where T=Al, Pd and Ag have been synthesized. All these compounds are found to crystallize in the hexagonal CaCu₅ type structure. Magnetization measurements reveal that these compounds are magnetically ordered with magnetic moments close to 7 μ_B. The Curie temperatures obtained from low field ac susceptibility measurements are 26K, 25K and 50K for T-Al, Pd and Ag respectively.¹⁵¹Eu Mössbauer studies at room temperature show a large negative isomer shift relative to SmF₃. A hyperfine split pattern is observed at 4.2K in all these compounds, indicating that Eu ion is present in a divalent state and is magnetically ordered.

Original language	English
Pages (from-to)	535-538
Number of pages	4
Journal	Hyperfine Interactions
Volume	41
Issue number	1
DOIs	https://doi.org/10.1007/BF02400446
Publication status	Published - Dec 1988
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Condensed Matter Physics
Physical and Theoretical Chemistry

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title = "Structural, magnetic and151Eu M{\"o}ssbauer studies on EuTCu4 (T-Al, Pd and Ag) compounds",

abstract = "New ternary compounds having the formula EuTCu4 where T=Al, Pd and Ag have been synthesized. All these compounds are found to crystallize in the hexagonal CaCu5 type structure. Magnetization measurements reveal that these compounds are magnetically ordered with magnetic moments close to 7 μB. The Curie temperatures obtained from low field ac susceptibility measurements are 26K, 25K and 50K for T-Al, Pd and Ag respectively.151Eu M{\"o}ssbauer studies at room temperature show a large negative isomer shift relative to SmF3. A hyperfine split pattern is observed at 4.2K in all these compounds, indicating that Eu ion is present in a divalent state and is magnetically ordered.",

author = "Adroja, {D. T.} and R. Nagarajan and Malik, {S. K.} and Padalia, {B. D.} and R. Vijayaraghavan",

year = "1988",

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T1 - Structural, magnetic and151Eu Mössbauer studies on EuTCu4 (T-Al, Pd and Ag) compounds

AU - Adroja, D. T.

AU - Nagarajan, R.

AU - Malik, S. K.

AU - Padalia, B. D.

AU - Vijayaraghavan, R.

PY - 1988/12

Y1 - 1988/12

N2 - New ternary compounds having the formula EuTCu4 where T=Al, Pd and Ag have been synthesized. All these compounds are found to crystallize in the hexagonal CaCu5 type structure. Magnetization measurements reveal that these compounds are magnetically ordered with magnetic moments close to 7 μB. The Curie temperatures obtained from low field ac susceptibility measurements are 26K, 25K and 50K for T-Al, Pd and Ag respectively.151Eu Mössbauer studies at room temperature show a large negative isomer shift relative to SmF3. A hyperfine split pattern is observed at 4.2K in all these compounds, indicating that Eu ion is present in a divalent state and is magnetically ordered.

AB - New ternary compounds having the formula EuTCu4 where T=Al, Pd and Ag have been synthesized. All these compounds are found to crystallize in the hexagonal CaCu5 type structure. Magnetization measurements reveal that these compounds are magnetically ordered with magnetic moments close to 7 μB. The Curie temperatures obtained from low field ac susceptibility measurements are 26K, 25K and 50K for T-Al, Pd and Ag respectively.151Eu Mössbauer studies at room temperature show a large negative isomer shift relative to SmF3. A hyperfine split pattern is observed at 4.2K in all these compounds, indicating that Eu ion is present in a divalent state and is magnetically ordered.

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Structural, magnetic and¹⁵¹Eu Mössbauer studies on EuTCu₄ (T-Al, Pd and Ag) compounds

Abstract

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