Superconducting lower critical fields in UPt3

Zuyu Zhao; F. Behroozi; J. B. Ketterson; Yongmin Guan; Bimal K. Sarmat; D. G. Hinks

doi:10.1016/S0921-4526(90)81022-G

Superconducting lower critical fields in UPt₃

Zuyu Zhao^*, F. Behroozi, J. B. Ketterson, Yongmin Guan, Bimal K. Sarmat, D. G. Hinks

^*Corresponding author for this work

Physics and Astronomy

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

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Abstract

DC magnetization curves of a single crystal of UPt₃ (T_c = 542 mK) are obtained with the external field parallel and perpendicular to the hexagonal c-axis. The magnetization curves are analyzed to yield the lower critical field H_c1 as a function of temperature and orientation. For both the c-axis and basal plane orientations, H_c1 shows an apparent kink in slope about 150 mK below T_c. This behavior appears to confirm the recently proposed model for the superconducting states in UPt₃ in which a two dimensional order parameter leads to the formation of two distinct superconducting phases.

Original language	English (US)
Pages (from-to)	345-346
Number of pages	2
Journal	Physica B: Physics of Condensed Matter
Volume	165-166
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4526(90)81022-G
State	Published - Aug 1990

ASJC Scopus subject areas

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

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abstract = "DC magnetization curves of a single crystal of UPt3 (Tc = 542 mK) are obtained with the external field parallel and perpendicular to the hexagonal c-axis. The magnetization curves are analyzed to yield the lower critical field Hc1 as a function of temperature and orientation. For both the c-axis and basal plane orientations, Hc1 shows an apparent kink in slope about 150 mK below Tc. This behavior appears to confirm the recently proposed model for the superconducting states in UPt3 in which a two dimensional order parameter leads to the formation of two distinct superconducting phases.",

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AU - Zhao, Zuyu

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AU - Guan, Yongmin

AU - Sarmat, Bimal K.

AU - Hinks, D. G.

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N2 - DC magnetization curves of a single crystal of UPt3 (Tc = 542 mK) are obtained with the external field parallel and perpendicular to the hexagonal c-axis. The magnetization curves are analyzed to yield the lower critical field Hc1 as a function of temperature and orientation. For both the c-axis and basal plane orientations, Hc1 shows an apparent kink in slope about 150 mK below Tc. This behavior appears to confirm the recently proposed model for the superconducting states in UPt3 in which a two dimensional order parameter leads to the formation of two distinct superconducting phases.

AB - DC magnetization curves of a single crystal of UPt3 (Tc = 542 mK) are obtained with the external field parallel and perpendicular to the hexagonal c-axis. The magnetization curves are analyzed to yield the lower critical field Hc1 as a function of temperature and orientation. For both the c-axis and basal plane orientations, Hc1 shows an apparent kink in slope about 150 mK below Tc. This behavior appears to confirm the recently proposed model for the superconducting states in UPt3 in which a two dimensional order parameter leads to the formation of two distinct superconducting phases.

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Superconducting lower critical fields in UPt₃

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