Direct visualization of local interaction forces in Bi2Sr2CaCu2O8+δ vortex matter

J. Aragon Sanchez; R. Cortes Maldonado; M. I. Dolz; N. R. CejasBolecek; C. J. Van Der Beek; M. Konczykowski; Y. Fasano

doi:10.1016/j.matpr.2019.05.047

Direct visualization of local interaction forces in Bi₂Sr₂CaCu₂O_8+δ vortex matter

J. Aragon Sanchez
, R. Cortes Maldonado
, M. I. Dolz
, N. R. CejasBolecek
, C. J. Van Der Beek
, M. Konczykowski
, Y. Fasano

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

Abstract

We study the local vortex-vortex interaction force f_i of the structure frozen during a field-cooling process in an electron-irradiated Bi₂Sr₂CaCu₂O_8+d sample. We compute this magnitude from snapshots of the vortex structure obtained via magnetic decoration experiments at various fields H in the same sample. Since the observed structures correspond to the equilibrium ones frozen at T∼T_irr(H)[1], at this temperature the local modulus of f_i roughly equals the local pinning force at the decorated surface of the sample. We estimate the most probable local pinning force from the mode value of the f_i(r)distribution, f_p ^m. We found that f_p ^m grows algebraically with H and in electron-irradiated samples is 50-20% smaller than for samples with columnar defects.

Original language	English
Pages (from-to)	34-37
Number of pages	4
Journal	Materials Today: Proceedings
Volume	14
DOIs	https://doi.org/10.1016/j.matpr.2019.05.047
Publication status	Published - 1 Jan 2019
Externally published	Yes
Event	23rd Latin American Symposium on Solid State Physics, SLAFES 2018 - San Carlos de Bariloche, Argentina Duration: 10 Apr 2018 → 13 Apr 2018

Keywords

Layered superconductors
Pinning forces
Vortex matter

Access to Document

10.1016/j.matpr.2019.05.047

Cite this

@article{8eb6bcb17acc48b99f4fc04f6ce8b28b,

title = "Direct visualization of local interaction forces in Bi2Sr2CaCu2O8+δ vortex matter",

abstract = "We study the local vortex-vortex interaction force fi of the structure frozen during a field-cooling process in an electron-irradiated Bi2Sr2CaCu2O8+d sample. We compute this magnitude from snapshots of the vortex structure obtained via magnetic decoration experiments at various fields H in the same sample. Since the observed structures correspond to the equilibrium ones frozen at T∼Tirr(H)[1], at this temperature the local modulus of fi roughly equals the local pinning force at the decorated surface of the sample. We estimate the most probable local pinning force from the mode value of the fi(r)distribution, fp m. We found that fp m grows algebraically with H and in electron-irradiated samples is 50-20\% smaller than for samples with columnar defects.",

keywords = "Layered superconductors, Pinning forces, Vortex matter",

author = "\{Aragon Sanchez\}, J. and \{Cortes Maldonado\}, R. and Dolz, \{M. I.\} and CejasBolecek, \{N. R.\} and \{Van Der Beek\}, \{C. J.\} and M. Konczykowski and Y. Fasano",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd. All rights reserved.; 23rd Latin American Symposium on Solid State Physics, SLAFES 2018 ; Conference date: 10-04-2018 Through 13-04-2018",

year = "2019",

month = jan,

day = "1",

doi = "10.1016/j.matpr.2019.05.047",

language = "English",

volume = "14",

pages = "34--37",

journal = "Materials Today: Proceedings",

issn = "2214-7853",

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TY - JOUR

T1 - Direct visualization of local interaction forces in Bi2Sr2CaCu2O8+δ vortex matter

AU - Aragon Sanchez, J.

AU - Cortes Maldonado, R.

AU - Dolz, M. I.

AU - CejasBolecek, N. R.

AU - Van Der Beek, C. J.

AU - Konczykowski, M.

AU - Fasano, Y.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - We study the local vortex-vortex interaction force fi of the structure frozen during a field-cooling process in an electron-irradiated Bi2Sr2CaCu2O8+d sample. We compute this magnitude from snapshots of the vortex structure obtained via magnetic decoration experiments at various fields H in the same sample. Since the observed structures correspond to the equilibrium ones frozen at T∼Tirr(H)[1], at this temperature the local modulus of fi roughly equals the local pinning force at the decorated surface of the sample. We estimate the most probable local pinning force from the mode value of the fi(r)distribution, fp m. We found that fp m grows algebraically with H and in electron-irradiated samples is 50-20% smaller than for samples with columnar defects.

AB - We study the local vortex-vortex interaction force fi of the structure frozen during a field-cooling process in an electron-irradiated Bi2Sr2CaCu2O8+d sample. We compute this magnitude from snapshots of the vortex structure obtained via magnetic decoration experiments at various fields H in the same sample. Since the observed structures correspond to the equilibrium ones frozen at T∼Tirr(H)[1], at this temperature the local modulus of fi roughly equals the local pinning force at the decorated surface of the sample. We estimate the most probable local pinning force from the mode value of the fi(r)distribution, fp m. We found that fp m grows algebraically with H and in electron-irradiated samples is 50-20% smaller than for samples with columnar defects.

KW - Layered superconductors

KW - Pinning forces

KW - Vortex matter

U2 - 10.1016/j.matpr.2019.05.047

DO - 10.1016/j.matpr.2019.05.047

M3 - Conference article

AN - SCOPUS:85072102168

SN - 2214-7853

VL - 14

SP - 34

EP - 37

JO - Materials Today: Proceedings

JF - Materials Today: Proceedings

T2 - 23rd Latin American Symposium on Solid State Physics, SLAFES 2018

Y2 - 10 April 2018 through 13 April 2018