De Haas-van Alphen oscillation in both the normal and superconducting mixed states of UPd2Al3

Yoshinori Haga; Yoshihiko Inada; Kenji Sakurai; Yoshihumi Tokiwa; Etsuji Yamamoto; Tetsuo Honma; Yoshichika Onuki

doi:10.1143/JPSJ.68.342

De Haas-van Alphen oscillation in both the normal and superconducting mixed states of UPd₂Al₃

Yoshinori Haga, Yoshihiko Inada, Kenji Sakurai, Yoshihumi Tokiwa, Etsuji Yamamoto, Tetsuo Honma, Yoshichika Onuki

Research output: Contribution to journal › Article

16 Citations (Scopus)

Abstract

We succeeded in growing a high-quality single crystal of the heavy fermion superconductor UPd₂Al₃ and observed the de Haas-van Alphen (dHvA) oscillation in both the normal and superconducting mixed states. The dHvA frequency, which is proportional to a maximum cross-sectional area of the electron Fermi surface labelled α. does not change in magnitude between the normal and mixed states, while the cyclotron mass of 5.7 m₀ in the normal state is reduced to 3.577 m₀ at 0.7 H_c2, and the corresponding Dingle temperature of 0.20 K in the normal state is increased to 0.39 K at 0.7 H_c2. Here, H_c2 of 39kOe is the upper critical field along the [0001] direction in the hexagonal structure.

Original language	English
Pages (from-to)	342-345
Number of pages	4
Journal	journal of the physical society of japan
Volume	68
Issue number	2
DOIs	https://doi.org/10.1143/JPSJ.68.342
Publication status	Published - Feb 1999
Externally published	Yes

Keywords

De Haas-van Alphen Effect
Heavy fermion superconductor
UPdAl

ASJC Scopus subject areas

Physics and Astronomy(all)

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Haga, Y., Inada, Y., Sakurai, K., Tokiwa, Y., Yamamoto, E., Honma, T., & Onuki, Y. (1999). De Haas-van Alphen oscillation in both the normal and superconducting mixed states of UPd₂Al₃. journal of the physical society of japan, 68(2), 342-345. https://doi.org/10.1143/JPSJ.68.342

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title = "De Haas-van Alphen oscillation in both the normal and superconducting mixed states of UPd2Al3",

abstract = "We succeeded in growing a high-quality single crystal of the heavy fermion superconductor UPd2Al3 and observed the de Haas-van Alphen (dHvA) oscillation in both the normal and superconducting mixed states. The dHvA frequency, which is proportional to a maximum cross-sectional area of the electron Fermi surface labelled α. does not change in magnitude between the normal and mixed states, while the cyclotron mass of 5.7 m0 in the normal state is reduced to 3.577 m0 at 0.7 Hc2, and the corresponding Dingle temperature of 0.20 K in the normal state is increased to 0.39 K at 0.7 Hc2. Here, Hc2 of 39kOe is the upper critical field along the [0001] direction in the hexagonal structure.",

keywords = "De Haas-van Alphen Effect, Heavy fermion superconductor, UPdAl",

author = "Yoshinori Haga and Yoshihiko Inada and Kenji Sakurai and Yoshihumi Tokiwa and Etsuji Yamamoto and Tetsuo Honma and Yoshichika Onuki",

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AU - Haga, Yoshinori

AU - Inada, Yoshihiko

AU - Sakurai, Kenji

AU - Tokiwa, Yoshihumi

AU - Yamamoto, Etsuji

AU - Honma, Tetsuo

AU - Onuki, Yoshichika

PY - 1999/2

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N2 - We succeeded in growing a high-quality single crystal of the heavy fermion superconductor UPd2Al3 and observed the de Haas-van Alphen (dHvA) oscillation in both the normal and superconducting mixed states. The dHvA frequency, which is proportional to a maximum cross-sectional area of the electron Fermi surface labelled α. does not change in magnitude between the normal and mixed states, while the cyclotron mass of 5.7 m0 in the normal state is reduced to 3.577 m0 at 0.7 Hc2, and the corresponding Dingle temperature of 0.20 K in the normal state is increased to 0.39 K at 0.7 Hc2. Here, Hc2 of 39kOe is the upper critical field along the [0001] direction in the hexagonal structure.

AB - We succeeded in growing a high-quality single crystal of the heavy fermion superconductor UPd2Al3 and observed the de Haas-van Alphen (dHvA) oscillation in both the normal and superconducting mixed states. The dHvA frequency, which is proportional to a maximum cross-sectional area of the electron Fermi surface labelled α. does not change in magnitude between the normal and mixed states, while the cyclotron mass of 5.7 m0 in the normal state is reduced to 3.577 m0 at 0.7 Hc2, and the corresponding Dingle temperature of 0.20 K in the normal state is increased to 0.39 K at 0.7 Hc2. Here, Hc2 of 39kOe is the upper critical field along the [0001] direction in the hexagonal structure.

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KW - Heavy fermion superconductor

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