151Eu Mössbauer study of the CuEuO2+δ delafossite

J. Lindén; K. Isawa; J. Miettinen; M. Karppinen; H. Yamauchi

doi:10.1016/S0921-4526(99)00225-2

¹⁵¹Eu Mössbauer study of the CuEuO_2+δ delafossite

J. Lindén^*, K. Isawa, J. Miettinen, M. Karppinen, H. Yamauchi

^*Korresponderande författare för detta arbete

Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review

4 Citeringar (Scopus)

Sammanfattning

Eu-based delafossite samples CuEuO_2+δ, with δ = 0.00 and 0.67 were synthesized for ¹⁵¹Eu Mössbauer investigations. The value of the quadrupole coupling constant for the as-synthesized stoichiometric (δ = 0.00) and the oxygen-loaded (δ = 0.67) samples was eQ_gV_zz = 9.4(2) and 6.1(2) mm/s, respectively. The asymmetry parameter η was 0.44(4) and 0.76(4), respectively. Lattice point-charge calculations reproduced the positive eQ_gV_zz values and the increase of the asymmetry parameter η upon oxygen loading.

Originalspråk	Engelska
Sidor (från-till)	223-229
Antal sidor	7
Tidskrift	Physica B: Condensed Matter
Volym	271
Nummer	1-4
DOI	https://doi.org/10.1016/S0921-4526(99)00225-2
Status	Publicerad - nov. 1999
MoE-publikationstyp	A1 Tidskriftsartikel-refererad

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10.1016/S0921-4526(99)00225-2

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@article{7e8aa95671ed4dea8c83d4244c0b7935,

title = "151Eu M{\"o}ssbauer study of the CuEuO2+δ delafossite",

abstract = "Eu-based delafossite samples CuEuO2+δ, with δ = 0.00 and 0.67 were synthesized for 151Eu M{\"o}ssbauer investigations. The value of the quadrupole coupling constant for the as-synthesized stoichiometric (δ = 0.00) and the oxygen-loaded (δ = 0.67) samples was eQgVzz = 9.4(2) and 6.1(2) mm/s, respectively. The asymmetry parameter η was 0.44(4) and 0.76(4), respectively. Lattice point-charge calculations reproduced the positive eQgVzz values and the increase of the asymmetry parameter η upon oxygen loading.",

keywords = "Delafossite, Hyperfine interaction, M{\"o}ssbauer spectroscopy",

author = "J. Lind{\'e}n and K. Isawa and J. Miettinen and M. Karppinen and H. Yamauchi",

year = "1999",

month = nov,

doi = "10.1016/S0921-4526(99)00225-2",

language = "English",

volume = "271",

pages = "223--229",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "1-4",

}

TY - JOUR

T1 - 151Eu Mössbauer study of the CuEuO2+δ delafossite

AU - Lindén, J.

AU - Isawa, K.

AU - Miettinen, J.

AU - Karppinen, M.

AU - Yamauchi, H.

PY - 1999/11

Y1 - 1999/11

N2 - Eu-based delafossite samples CuEuO2+δ, with δ = 0.00 and 0.67 were synthesized for 151Eu Mössbauer investigations. The value of the quadrupole coupling constant for the as-synthesized stoichiometric (δ = 0.00) and the oxygen-loaded (δ = 0.67) samples was eQgVzz = 9.4(2) and 6.1(2) mm/s, respectively. The asymmetry parameter η was 0.44(4) and 0.76(4), respectively. Lattice point-charge calculations reproduced the positive eQgVzz values and the increase of the asymmetry parameter η upon oxygen loading.

AB - Eu-based delafossite samples CuEuO2+δ, with δ = 0.00 and 0.67 were synthesized for 151Eu Mössbauer investigations. The value of the quadrupole coupling constant for the as-synthesized stoichiometric (δ = 0.00) and the oxygen-loaded (δ = 0.67) samples was eQgVzz = 9.4(2) and 6.1(2) mm/s, respectively. The asymmetry parameter η was 0.44(4) and 0.76(4), respectively. Lattice point-charge calculations reproduced the positive eQgVzz values and the increase of the asymmetry parameter η upon oxygen loading.

KW - Delafossite

KW - Hyperfine interaction

KW - Mössbauer spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=0011709530&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(99)00225-2

DO - 10.1016/S0921-4526(99)00225-2

M3 - Article

AN - SCOPUS:0011709530

SN - 0921-4526

VL - 271

SP - 223

EP - 229

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 1-4