Superconducting properties of V/Fe superlattices

H. K. Wong; B. Y. Jin; H. Q. Yang; J. E. Hilliard; J. B. Ketterson

doi:10.1016/0749-6036(85)90014-X

Superconducting properties of V/Fe superlattices

H. K. Wong^*, B. Y. Jin, H. Q. Yang, J. E. Hilliard, J. B. Ketterson

^*Corresponding author for this work

Physics and Astronomy

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

Abstract

We report measurements on the superconducting properties of V/Fe superlattices with various layer thicknesses. These samples were prepared with a novel UHV evaporator which can produce up to twenty different samples in the same run. The Fe layer, a strong pair breaker, suppresses the superconducting transition temperature in a systematic way. When the V layer thickness is on the order of the BCS coherence length and the Fe layer is only a few atomic planes thick, a 2D-3D crossover has been observed in the temperature dependence of the parallel upper critical field H_C2∥. This implies the coexistence of superconductivity and ferromagnetismm. We observe three dimensional behavior for thinner Fe layers (∼1 atomic plane) and two dimensional behavior for thicker Fe layers (greater than 10 atomic planes).

Original language	English (US)
Pages (from-to)	259-264
Number of pages	6
Journal	Superlattices and Microstructures
Volume	1
Issue number	3
DOIs	https://doi.org/10.1016/0749-6036(85)90014-X
State	Published - 1985

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/0749-6036(85)90014-X

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title = "Superconducting properties of V/Fe superlattices",

abstract = "We report measurements on the superconducting properties of V/Fe superlattices with various layer thicknesses. These samples were prepared with a novel UHV evaporator which can produce up to twenty different samples in the same run. The Fe layer, a strong pair breaker, suppresses the superconducting transition temperature in a systematic way. When the V layer thickness is on the order of the BCS coherence length and the Fe layer is only a few atomic planes thick, a 2D-3D crossover has been observed in the temperature dependence of the parallel upper critical field HC2∥. This implies the coexistence of superconductivity and ferromagnetismm. We observe three dimensional behavior for thinner Fe layers (∼1 atomic plane) and two dimensional behavior for thicker Fe layers (greater than 10 atomic planes).",

author = "Wong, {H. K.} and Jin, {B. Y.} and Yang, {H. Q.} and Hilliard, {J. E.} and Ketterson, {J. B.}",

note = "Funding Information: This work was supported by the NSF/MRL program under Grant DMR82-16972a nd the Office of Naval Research Grant NOOOI4-82-K-0598.",

year = "1985",

doi = "10.1016/0749-6036(85)90014-X",

language = "English (US)",

volume = "1",

pages = "259--264",

journal = "Superlattices and Microstructures",

issn = "0749-6036",

publisher = "Academic Press Inc.",

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TY - JOUR

T1 - Superconducting properties of V/Fe superlattices

AU - Wong, H. K.

AU - Jin, B. Y.

AU - Yang, H. Q.

AU - Hilliard, J. E.

AU - Ketterson, J. B.

N1 - Funding Information: This work was supported by the NSF/MRL program under Grant DMR82-16972a nd the Office of Naval Research Grant NOOOI4-82-K-0598.

PY - 1985

Y1 - 1985

N2 - We report measurements on the superconducting properties of V/Fe superlattices with various layer thicknesses. These samples were prepared with a novel UHV evaporator which can produce up to twenty different samples in the same run. The Fe layer, a strong pair breaker, suppresses the superconducting transition temperature in a systematic way. When the V layer thickness is on the order of the BCS coherence length and the Fe layer is only a few atomic planes thick, a 2D-3D crossover has been observed in the temperature dependence of the parallel upper critical field HC2∥. This implies the coexistence of superconductivity and ferromagnetismm. We observe three dimensional behavior for thinner Fe layers (∼1 atomic plane) and two dimensional behavior for thicker Fe layers (greater than 10 atomic planes).

AB - We report measurements on the superconducting properties of V/Fe superlattices with various layer thicknesses. These samples were prepared with a novel UHV evaporator which can produce up to twenty different samples in the same run. The Fe layer, a strong pair breaker, suppresses the superconducting transition temperature in a systematic way. When the V layer thickness is on the order of the BCS coherence length and the Fe layer is only a few atomic planes thick, a 2D-3D crossover has been observed in the temperature dependence of the parallel upper critical field HC2∥. This implies the coexistence of superconductivity and ferromagnetismm. We observe three dimensional behavior for thinner Fe layers (∼1 atomic plane) and two dimensional behavior for thicker Fe layers (greater than 10 atomic planes).

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DO - 10.1016/0749-6036(85)90014-X

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JO - Superlattices and Microstructures

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ER -

Superconducting properties of V/Fe superlattices

Abstract

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