High-resolution scanning hall probe microscopy

H. D. Hallen; H. F. Hess; A. M. Chang; L. N. Pfeiffer; K. W. West; D. B. Mitzi

doi:10.1117/12.146371

High-resolution scanning hall probe microscopy

H. D. Hallen, H. F. Hess, A. M. Chang, L. N. Pfeiffer, K. W. West, D. B. Mitzi

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

A high resolution scanning Hall probe microscope is used to spatially resolve vortices in high temperature superconducting Bi₂Sr₂CaCu₂O_8+δ crystals. We observe a partially ordered vortex lattice at several different applied magnetic fields and temperatures. At higher temperatures, a limited amount of vortex re-arrangement is observed, but most vortices remain fixed for periods long compared to the imaging time of several hours even at temperatures as high as 75°K (the superconducting transition temperature for these crystals is ∼84°K). A measure of the local magnetic penetration depth can be obtained from a fit to the surface field of several neighboring vortices, and has been measured as a function of temperature. In particular, we have measured the zero temperature penetration depth and found it to be 275 ± 40 nm.

Original language	English (US)
Pages (from-to)	152-157
Number of pages	6
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1855
DOIs	https://doi.org/10.1117/12.146371
State	Published - Jun 4 1993
Externally published	Yes
Event	Scanning Probe Microscopies II 1993 - Los Angeles, United States Duration: Jan 17 1993 → Jan 22 1993

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.146371

Cite this

@article{d16cc84ccda34a82bca2024dcb605d7f,

title = "High-resolution scanning hall probe microscopy",

abstract = "A high resolution scanning Hall probe microscope is used to spatially resolve vortices in high temperature superconducting Bi2Sr2CaCu2O8+δ crystals. We observe a partially ordered vortex lattice at several different applied magnetic fields and temperatures. At higher temperatures, a limited amount of vortex re-arrangement is observed, but most vortices remain fixed for periods long compared to the imaging time of several hours even at temperatures as high as 75°K (the superconducting transition temperature for these crystals is ∼84°K). A measure of the local magnetic penetration depth can be obtained from a fit to the surface field of several neighboring vortices, and has been measured as a function of temperature. In particular, we have measured the zero temperature penetration depth and found it to be 275 ± 40 nm.",

author = "Hallen, {H. D.} and Hess, {H. F.} and Chang, {A. M.} and Pfeiffer, {L. N.} and West, {K. W.} and Mitzi, {D. B.}",

year = "1993",

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language = "English (US)",

volume = "1855",

pages = "152--157",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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TY - JOUR

T1 - High-resolution scanning hall probe microscopy

AU - Hallen, H. D.

AU - Hess, H. F.

AU - Chang, A. M.

AU - Pfeiffer, L. N.

AU - West, K. W.

AU - Mitzi, D. B.

PY - 1993/6/4

Y1 - 1993/6/4

N2 - A high resolution scanning Hall probe microscope is used to spatially resolve vortices in high temperature superconducting Bi2Sr2CaCu2O8+δ crystals. We observe a partially ordered vortex lattice at several different applied magnetic fields and temperatures. At higher temperatures, a limited amount of vortex re-arrangement is observed, but most vortices remain fixed for periods long compared to the imaging time of several hours even at temperatures as high as 75°K (the superconducting transition temperature for these crystals is ∼84°K). A measure of the local magnetic penetration depth can be obtained from a fit to the surface field of several neighboring vortices, and has been measured as a function of temperature. In particular, we have measured the zero temperature penetration depth and found it to be 275 ± 40 nm.

AB - A high resolution scanning Hall probe microscope is used to spatially resolve vortices in high temperature superconducting Bi2Sr2CaCu2O8+δ crystals. We observe a partially ordered vortex lattice at several different applied magnetic fields and temperatures. At higher temperatures, a limited amount of vortex re-arrangement is observed, but most vortices remain fixed for periods long compared to the imaging time of several hours even at temperatures as high as 75°K (the superconducting transition temperature for these crystals is ∼84°K). A measure of the local magnetic penetration depth can be obtained from a fit to the surface field of several neighboring vortices, and has been measured as a function of temperature. In particular, we have measured the zero temperature penetration depth and found it to be 275 ± 40 nm.

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DO - 10.1117/12.146371

M3 - Conference article

AN - SCOPUS:85075843354

SN - 0277-786X

VL - 1855

SP - 152

EP - 157

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Scanning Probe Microscopies II 1993

Y2 - 17 January 1993 through 22 January 1993

ER -

High-resolution scanning hall probe microscopy

Abstract

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