de Haas-van Alphen Oscillations of LuNi2B2C in Pulsed High Magnetic Fields

Masashi Tokunaga; Noboru Miura; Hidenori Takagi; R. J. Cava

doi:10.1143/JPSJ.64.1458

de Haas-van Alphen Oscillations of LuNi₂B₂C in Pulsed High Magnetic Fields

Masashi Tokunaga, Noboru Miura, Hidenori Takagi, R. J. Cava

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

5 Scopus citations

Abstract

We have observed de Haas-van Alphen (dHvA) oscillations in the borocarbide superconductor, LuNi₂B₂C, under pulsed magnetic fields up to 40 T. The observed oscillation frequency, 288 + 7 T, corresponds to a cross section of 2.75 × 10⁻² ±0.07 × 10⁻² Å⁻². The temperature dependence of the oscillation amplitude provides a cyclotron effective mass of [formula omitted] in the ab plane. By comparison with the results of band structure calculations, the oscillation can be assigned to a Lu 5d band which forms a small Fermi pocket near the Γ point. These results support the validity of the band structure calculation as a good starting point for understanding this class of superconductors.

Original language	English (US)
Pages (from-to)	1458-1461
Number of pages	4
Journal	Journal of the Physical Society of Japan
Volume	64
Issue number	5
DOIs	https://doi.org/10.1143/JPSJ.64.1458
State	Published - May 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Keywords

Lu 5d band
LuNiBC
borocarbide intermetallic superconductor
cyclotron effective mass
de Haas-van Alphen oscillations
pulsed magnetic fields

Access to Document

10.1143/JPSJ.64.1458

Cite this

@article{813c3bc73a44481387764f692cff2ec0,

title = "de Haas-van Alphen Oscillations of LuNi2B2C in Pulsed High Magnetic Fields",

abstract = "We have observed de Haas-van Alphen (dHvA) oscillations in the borocarbide superconductor, LuNi2B2C, under pulsed magnetic fields up to 40 T. The observed oscillation frequency, 288 + 7 T, corresponds to a cross section of 2.75 × 10−2 ±0.07 × 10−2 {\AA}−2. The temperature dependence of the oscillation amplitude provides a cyclotron effective mass of [formula omitted] in the ab plane. By comparison with the results of band structure calculations, the oscillation can be assigned to a Lu 5d band which forms a small Fermi pocket near the Γ point. These results support the validity of the band structure calculation as a good starting point for understanding this class of superconductors.",

keywords = "Lu 5d band, LuNiBC, borocarbide intermetallic superconductor, cyclotron effective mass, de Haas-van Alphen oscillations, pulsed magnetic fields",

author = "Masashi Tokunaga and Noboru Miura and Hidenori Takagi and Cava, {R. J.}",

year = "1995",

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T1 - de Haas-van Alphen Oscillations of LuNi2B2C in Pulsed High Magnetic Fields

AU - Tokunaga, Masashi

AU - Miura, Noboru

AU - Takagi, Hidenori

AU - Cava, R. J.

PY - 1995/5

Y1 - 1995/5

N2 - We have observed de Haas-van Alphen (dHvA) oscillations in the borocarbide superconductor, LuNi2B2C, under pulsed magnetic fields up to 40 T. The observed oscillation frequency, 288 + 7 T, corresponds to a cross section of 2.75 × 10−2 ±0.07 × 10−2 Å−2. The temperature dependence of the oscillation amplitude provides a cyclotron effective mass of [formula omitted] in the ab plane. By comparison with the results of band structure calculations, the oscillation can be assigned to a Lu 5d band which forms a small Fermi pocket near the Γ point. These results support the validity of the band structure calculation as a good starting point for understanding this class of superconductors.

AB - We have observed de Haas-van Alphen (dHvA) oscillations in the borocarbide superconductor, LuNi2B2C, under pulsed magnetic fields up to 40 T. The observed oscillation frequency, 288 + 7 T, corresponds to a cross section of 2.75 × 10−2 ±0.07 × 10−2 Å−2. The temperature dependence of the oscillation amplitude provides a cyclotron effective mass of [formula omitted] in the ab plane. By comparison with the results of band structure calculations, the oscillation can be assigned to a Lu 5d band which forms a small Fermi pocket near the Γ point. These results support the validity of the band structure calculation as a good starting point for understanding this class of superconductors.

KW - Lu 5d band

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KW - borocarbide intermetallic superconductor

KW - cyclotron effective mass

KW - de Haas-van Alphen oscillations

KW - pulsed magnetic fields

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