Magnetic properties of heavy fermion superconductors UPt3 and URu2Si2

K. Tenya; M. Ikeda; T. Tayama; K. Kuwahara; H. Amitsuka; T. Sakakibara; E. Yamamoto; K. Maezawa; N. Kimura; R. Settai; Y. Onuki

doi:10.1016/S0921-4526(96)00715-6

Magnetic properties of heavy fermion superconductors UPt₃ and URu₂Si₂

K. Tenya, M. Ikeda, T. Tayama, K. Kuwahara, H. Amitsuka, T. Sakakibara, E. Yamamoto, K. Maezawa, N. Kimura, R. Settai, Y. Onuki

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

1 Citation (Scopus)

Abstract

The effects of the normal state paramagnetism on the superconductivity of UPt₃ and URu₂Si₂ were investigated by means of static magnetization measurements. While the upper critical field of URu₂Si₂ seems to be paramagnetically suppressed, no clear spin reduction is observed in the magnetization curves. The paramagnetic polarization in UPt₃ for H⊥c (H∥c) is as large as (slightly suppressed below) the normal-state value, although the normal state spin susceptibility is considered to be largest for H⊥c. The results of UPt₃ point to an odd-parity pairing with a discernible anisotropy in the pair-spin state.

Original language	English
Pages (from-to)	345-347
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	230-232
DOIs	https://doi.org/10.1016/S0921-4526(96)00715-6
Publication status	Published - 1997 Feb
Externally published	Yes

Keywords

Heavy electron system
Odd-parity pairing
Paramagnetic effect
UPt
URuSi

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4526(96)00715-6

Cite this

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title = "Magnetic properties of heavy fermion superconductors UPt3 and URu2Si2",

abstract = "The effects of the normal state paramagnetism on the superconductivity of UPt3 and URu2Si2 were investigated by means of static magnetization measurements. While the upper critical field of URu2Si2 seems to be paramagnetically suppressed, no clear spin reduction is observed in the magnetization curves. The paramagnetic polarization in UPt3 for H⊥c (H∥c) is as large as (slightly suppressed below) the normal-state value, although the normal state spin susceptibility is considered to be largest for H⊥c. The results of UPt3 point to an odd-parity pairing with a discernible anisotropy in the pair-spin state.",

keywords = "Heavy electron system, Odd-parity pairing, Paramagnetic effect, UPt, URuSi",

author = "K. Tenya and M. Ikeda and T. Tayama and K. Kuwahara and H. Amitsuka and T. Sakakibara and E. Yamamoto and K. Maezawa and N. Kimura and R. Settai and Y. Onuki",

year = "1997",

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doi = "10.1016/S0921-4526(96)00715-6",

language = "English",

volume = "230-232",

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journal = "Physica B: Condensed Matter",

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TY - JOUR

T1 - Magnetic properties of heavy fermion superconductors UPt3 and URu2Si2

AU - Tenya, K.

AU - Ikeda, M.

AU - Tayama, T.

AU - Kuwahara, K.

AU - Amitsuka, H.

AU - Sakakibara, T.

AU - Yamamoto, E.

AU - Maezawa, K.

AU - Kimura, N.

AU - Settai, R.

AU - Onuki, Y.

PY - 1997/2

Y1 - 1997/2

N2 - The effects of the normal state paramagnetism on the superconductivity of UPt3 and URu2Si2 were investigated by means of static magnetization measurements. While the upper critical field of URu2Si2 seems to be paramagnetically suppressed, no clear spin reduction is observed in the magnetization curves. The paramagnetic polarization in UPt3 for H⊥c (H∥c) is as large as (slightly suppressed below) the normal-state value, although the normal state spin susceptibility is considered to be largest for H⊥c. The results of UPt3 point to an odd-parity pairing with a discernible anisotropy in the pair-spin state.

AB - The effects of the normal state paramagnetism on the superconductivity of UPt3 and URu2Si2 were investigated by means of static magnetization measurements. While the upper critical field of URu2Si2 seems to be paramagnetically suppressed, no clear spin reduction is observed in the magnetization curves. The paramagnetic polarization in UPt3 for H⊥c (H∥c) is as large as (slightly suppressed below) the normal-state value, although the normal state spin susceptibility is considered to be largest for H⊥c. The results of UPt3 point to an odd-parity pairing with a discernible anisotropy in the pair-spin state.

KW - Heavy electron system

KW - Odd-parity pairing

KW - Paramagnetic effect

KW - UPt

KW - URuSi

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