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Title: Glassy Dynamics in a heavy ion irradiated NbSe2 crystal

Abstract

Fascination with glassy states has persisted since Fisher introduced the vortex-glass as a new thermodynamic phase that is a true superconductor that lacks conventional long-range order. Though Fisher’s original model considered point disorder, it was later predicted that columnar defects (CDs) could also induce glassiness — specifically, a Bose-glass phase. In YBa2Cu3O7–x (YBCO), glassy states can cause distinct behavior in the temperature (T) dependent rate of thermally activated vortex motion (S). The vortex-glass state produces a plateau in S(T) whereas a Bose-glass can transition into a state hosting vortex excitations called double-kinks that can expand, creating a large peak in S(T). Although glass phases have been well-studied in YBCO, few studies exist of other materials containing CDs that could contribute to distinguishing universal behavior. Here, we report on the effectiveness of CDs tilted ~30° from the c-axis in reducing S in a NbSe2 crystal. The magnetization is 5 times higher and S is minimized when the field is parallel to the defects versus aligned with the c-axis. We see signatures of glassiness in both field orientations, but do not observe a peak in S(T) nor a plateau at values observed in YBCO. Lastly, we discuss the possibility that competing disordermore » induces a field-orientation-driven transition from a Bose-glass to an anisotropic glass involving both point and columnar disorder.« less

Authors:
ORCiD logo [1];  [2];  [2];  [2]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [4];  [2];  [2]; ORCiD logo [3]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Colorado School of Mines, Golden, CO (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Emergent Superconductivity (CES); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1471362
Report Number(s):
LA-UR-18-22335
Journal ID: ISSN 2045-2322
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Material Science; Superconductivity, NbSe(2), vortex matter, vortex dynamics

Citation Formats

Eley, Serena Merteen, Khilstrom, Karen, Fotovat, R., Xiao, Z. L., Chen, Aiping, Chen, Di, Leroux, Maxime, Welp, Ulrich, Kwok, Wai -Kwong, and Civale, Leonardo. Glassy Dynamics in a heavy ion irradiated NbSe2 crystal. United States: N. p., 2018. Web. doi:10.1038/s41598-018-31203-0.
Eley, Serena Merteen, Khilstrom, Karen, Fotovat, R., Xiao, Z. L., Chen, Aiping, Chen, Di, Leroux, Maxime, Welp, Ulrich, Kwok, Wai -Kwong, & Civale, Leonardo. Glassy Dynamics in a heavy ion irradiated NbSe2 crystal. United States. https://doi.org/10.1038/s41598-018-31203-0
Eley, Serena Merteen, Khilstrom, Karen, Fotovat, R., Xiao, Z. L., Chen, Aiping, Chen, Di, Leroux, Maxime, Welp, Ulrich, Kwok, Wai -Kwong, and Civale, Leonardo. 2018. "Glassy Dynamics in a heavy ion irradiated NbSe2 crystal". United States. https://doi.org/10.1038/s41598-018-31203-0. https://www.osti.gov/servlets/purl/1471362.
@article{osti_1471362,
title = {Glassy Dynamics in a heavy ion irradiated NbSe2 crystal},
author = {Eley, Serena Merteen and Khilstrom, Karen and Fotovat, R. and Xiao, Z. L. and Chen, Aiping and Chen, Di and Leroux, Maxime and Welp, Ulrich and Kwok, Wai -Kwong and Civale, Leonardo},
abstractNote = {Fascination with glassy states has persisted since Fisher introduced the vortex-glass as a new thermodynamic phase that is a true superconductor that lacks conventional long-range order. Though Fisher’s original model considered point disorder, it was later predicted that columnar defects (CDs) could also induce glassiness — specifically, a Bose-glass phase. In YBa2Cu3O7–x (YBCO), glassy states can cause distinct behavior in the temperature (T) dependent rate of thermally activated vortex motion (S). The vortex-glass state produces a plateau in S(T) whereas a Bose-glass can transition into a state hosting vortex excitations called double-kinks that can expand, creating a large peak in S(T). Although glass phases have been well-studied in YBCO, few studies exist of other materials containing CDs that could contribute to distinguishing universal behavior. Here, we report on the effectiveness of CDs tilted ~30° from the c-axis in reducing S in a NbSe2 crystal. The magnetization is 5 times higher and S is minimized when the field is parallel to the defects versus aligned with the c-axis. We see signatures of glassiness in both field orientations, but do not observe a peak in S(T) nor a plateau at values observed in YBCO. Lastly, we discuss the possibility that competing disorder induces a field-orientation-driven transition from a Bose-glass to an anisotropic glass involving both point and columnar disorder.},
doi = {10.1038/s41598-018-31203-0},
url = {https://www.osti.gov/biblio/1471362}, journal = {Scientific Reports},
issn = {2045-2322},
number = 1,
volume = 8,
place = {United States},
year = {Mon Sep 03 00:00:00 EDT 2018},
month = {Mon Sep 03 00:00:00 EDT 2018}
}

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Works referenced in this record:

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Growth of faceted niobium diselenide
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Critical current densities and flux creep rate in Co-doped BaFe2As2 with columnar defects introduced by heavy-Ion irradiation
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Effect of secondary electrons from latent tracks created in YBCO by swift heavy ion irradiation
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Characterization of collective ground states in single-layer NbSe2
journal, November 2015


Second magnetization peak effect, vortex dynamics and flux pinning in 112-type superconductor Ca0.8La0.2Fe1−xCoxAs2
journal, March 2016


Anisotropic critical currents in Ba 2 YCu 3 O 7 analyzed using an extended Bean model
journal, July 1989


Angular-dependent vortex pinning mechanisms in YBa2Cu3O7 coated conductors and thin films
journal, March 2004


Vortices in high-performance high-temperature superconductors
journal, September 2016


Vortex pinning and slow creep in high- J c  MgB 2 thin films: a magnetic and transport study
journal, June 2005


Field, temperature, and angle dependent critical current density J c ( H , T ,θ) in coated conductors obtained via contact-free methods
journal, December 2009


Effects of particle irradiations on vortex states in iron-based superconductors
journal, July 2012


Materials design for artificial pinning centres in superconductor PLD coated conductors
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Boson localization and pinning by correlated disorder in high-temperature superconductors
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  • Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, Vol. 18, Issue 1
  • https://doi.org/10.1116/1.591151

Observation of the Flux Line Lock-In Transition in Layered Superconductors
journal, February 1994


Universal Lower Limit on Vortex Creep in Superconductors
text, January 2016


Theory of plastic vortex creep
text, January 2000


Works referencing / citing this record:

Experimental test of strong pinning and creep in current-voltage characteristics of type-II superconductors
journal, December 2019


Thermal creep induced by cooling a superconducting vortex lattice
journal, February 2020


Thermal creep induced by cooling a superconducting vortex lattice
text, January 2020