Hyperfine Interactions in Copper Sites of Dielectric and Superconducting Copper Metal Oxides

被引：0

作者：

Terukov, E. I. ^{[1
,2
]}

Marchenko, A. V. ^{[3
]}

Luzhkov, A. A. ^{[3
]}

Seregin, P. P. ^{[3
]}

Shakhovich, K. B. ^{[3
]}

机构：

[1] Russian Acad Sci, Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[2] St Petersburg State Electrotech Univ LETI, St Petersburg 197376, Russia

[3] Herzen State Pedag Univ, St Petersburg 191186, Russia

来源：

TECHNICAL PHYSICS LETTERS | 2020年 / 46卷 / 11期

关键词：

high-temperature superconductors; emission Mö ssbauer spectroscopy; nuclear magnetic resonance; electric field gradient tensor; ANTIFERROMAGNETISM; PARENT; CU;

D O I：

10.1134/S1063785020110139

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

It is shown using Mossbauer spectroscopy on Cu-61(Ni-61) isotopes that dielectric metal oxides of divalent copper exhibit combined quadrupole and Zeeman interaction of Ni-61 nuclei with local fields in copper sites, whereas superconducting metal oxides exhibit only quadrupole interaction of Ni-61 nuclei. The valence contributions to the electric field gradient tensor on Ni-61(2+) and Cu-63(2+) nuclei are found to be identical for all metal oxides.

引用

页码：1100 / 1102

页数：3

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