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Title: Quasi-two-dimensional fluctuations in the magnetization of L a 1.9 C a 1.1 C u 2 O 6 + δ superconductors

Abstract

We report the results of magnetization measurements with the magnetic field applied along the c axis on superconducting La 1.9Ca 1.1Cu 2O 6+δ single crystals processed under ultrahigh oxygen pressure. Strong fluctuation effects were found in both low- and high-field regimes. Scaling analysis of the high-field magnetization data near the critical temperature (T c = 53.5K) region reveals the characteristics of critical fluctuation behavior of quasi-two-dimensional (2D) superconductivity, described by Ginzburg-Landau theory using the lowest Landau level approximation. Low-field magnetic susceptibility data can be successfully explained by the Lawrence-Doniach model for a quasi-2D superconductor, from which we obtained the a b plane Ginzburg-Landau coherence length of this system, ξ ab(0) = 11.8 ± 0.9 Å . The coherence length along the c axis, ξ c(0), is estimated to be about 1.65 Å, which is in between those of 2D cuprate systems, such as Bi 2Sr 2Ca 2Cu 3O 10 and Bi 2Sr 2CaCu 2O 8, and quasi-three-dimensional (3D) cuprate systems, such as overdoped La 2-xSr xCuO 4 and YBa 2Cu 3O 7-δ. Our studies suggest a strong interplay among the fluctuation effects, dimensionalities, and the ratios of the interlayer Cu-O plane spacing, s , to the c-axis coherence lengths. Amore » high s/ξ c(0) was observed in the high-pressure oxygenated La 1.9Ca 1.1Cu 2O 6+δ, and that apparently drives this system to behave more like a quasi-2D superconductor.« less

Authors:
 [1];  [2];  [3];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States); Inst. for Defense Analyses, Alexandria, VA (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States); Kwansei Gakuin Univ., Hyogo (Japan)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1425045
Alternate Identifier(s):
OSTI ID: 1409705
Report Number(s):
BNL-200053-2018-JAAM
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US1802011
Grant/Contract Number:  
SC0012704; SC00112704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 96; Journal Issue: 18; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Shi, Xiaoya, Dimitrov, I. K., Ozaki, Toshinori, Gu, Genda, and Li, Qiang. Quasi-two-dimensional fluctuations in the magnetization of La1.9Ca1.1Cu2O6+δ superconductors. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.96.184519.
Shi, Xiaoya, Dimitrov, I. K., Ozaki, Toshinori, Gu, Genda, & Li, Qiang. Quasi-two-dimensional fluctuations in the magnetization of La1.9Ca1.1Cu2O6+δ superconductors. United States. https://doi.org/10.1103/PhysRevB.96.184519
Shi, Xiaoya, Dimitrov, I. K., Ozaki, Toshinori, Gu, Genda, and Li, Qiang. Wed . "Quasi-two-dimensional fluctuations in the magnetization of La1.9Ca1.1Cu2O6+δ superconductors". United States. https://doi.org/10.1103/PhysRevB.96.184519. https://www.osti.gov/servlets/purl/1425045.
@article{osti_1425045,
title = {Quasi-two-dimensional fluctuations in the magnetization of La1.9Ca1.1Cu2O6+δ superconductors},
author = {Shi, Xiaoya and Dimitrov, I. K. and Ozaki, Toshinori and Gu, Genda and Li, Qiang},
abstractNote = {We report the results of magnetization measurements with the magnetic field applied along the c axis on superconducting La1.9Ca1.1Cu2O6+δ single crystals processed under ultrahigh oxygen pressure. Strong fluctuation effects were found in both low- and high-field regimes. Scaling analysis of the high-field magnetization data near the critical temperature (Tc = 53.5K) region reveals the characteristics of critical fluctuation behavior of quasi-two-dimensional (2D) superconductivity, described by Ginzburg-Landau theory using the lowest Landau level approximation. Low-field magnetic susceptibility data can be successfully explained by the Lawrence-Doniach model for a quasi-2D superconductor, from which we obtained the a b plane Ginzburg-Landau coherence length of this system, ξab(0) = 11.8 ± 0.9 Å . The coherence length along the c axis, ξc(0), is estimated to be about 1.65 Å, which is in between those of 2D cuprate systems, such as Bi2Sr2Ca2Cu3O10 and Bi2Sr2CaCu2O8, and quasi-three-dimensional (3D) cuprate systems, such as overdoped La2-xSrxCuO4 and YBa2Cu3O7-δ. Our studies suggest a strong interplay among the fluctuation effects, dimensionalities, and the ratios of the interlayer Cu-O plane spacing, s , to the c-axis coherence lengths. A high s/ξc(0) was observed in the high-pressure oxygenated La1.9Ca1.1Cu2O6+δ, and that apparently drives this system to behave more like a quasi-2D superconductor.},
doi = {10.1103/PhysRevB.96.184519},
url = {https://www.osti.gov/biblio/1425045}, journal = {Physical Review B},
issn = {2469-9950},
number = 18,
volume = 96,
place = {United States},
year = {2017},
month = {11}
}

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Works referenced in this record:

Single-crystal growth and anisotropic electrical properties of (La1? xCa x )2CaCu2O6
journal, April 1994


Crystal growth and superconductivity of (La1−xCax)2CaCu2O6+δ
journal, January 2006


Phenomenological model of the copper oxide superconductors
journal, February 1990


Vortices in high-temperature superconductors
journal, October 1994


Superconducting diamagnetic fluctuations in Sm-based underdoped cuprates studied via SQUID magnetometry
journal, February 2010


Giant superconducting anisotropy in Bi 2 Sr 2 Ca 1 Cu 2 O 8 + δ
journal, August 1989


Heat capacity of untwinned YBa 2 Cu 3 O 7 δ crystals along the H c 2 line
journal, January 1991


Critical fluctuations in the magnetization of Bi 2 Sr 2 CaCu 2 O 8 near the H c 2 ( T ) line
journal, October 1993


Fluctuating diamagnetism in underdoped high-temperature superconductors
journal, June 2001


A New High- T c Oxide Superconductor without a Rare Earth Element
journal, February 1988


Superconducting diamagnetic fluctuations in MgB 2
journal, April 2002


Structural and magnetic instabilities of La 2 x Sr x CaCu 2 O 6
journal, May 2002


Magnetic relaxation in high-temperature superconductors
journal, July 1996


Effective Dimensionality Change of Fluctuations in Superconductors in a Magnetic Field
journal, April 1972


Critical fluctuations in high-temperature superconductors and the Ettingshausen effect
journal, October 1990


Critical fluctuations in the thermodynamics of quasi-two-dimensional type-II supeconductors
journal, December 1992


Transport entropy of vortex motion in YBa 2 Cu 3 O 7
journal, June 1990


Specific heat of high temperature superconductors in high magnetic fields
journal, August 1997


Vortex fluctuations, magnetic penetration depth, and H c 2 in Hg- and Tl-based high- T c superconductors
journal, November 1993


Superconducting Fluctuations and Related Fluctuating Diamagnetism in Ybco124
journal, March 2003


Anomalous doping dependence of fluctuation-induced diamagnetism in Y 1 x Ca x Ba 2 Cu 3 O y superconductors
journal, April 2002


Superconducting diamagnetic magnetization of single crystalline Bi2Sr2CaCu2O8+δ
journal, December 1991


Vortex fluctuations in polycrystalline Bi1.75Pb0.25Sr2Ca2Cu3O10
journal, July 1993


Field-induced suppression of the phase transition in Bi_{2}Sr_{2}CaCu_{2}O_{8}
journal, October 1991


Precursor diamagnetism above the superconducting transition in La 1.9 Sr 0.1 CuO 4
journal, September 2003


Possible highT c superconductivity in the Ba?La?Cu?O system
journal, June 1986


Anisotropic specific heat of a Bi2Sr2CaCu2O8 single crystal in magnetic fields up to 14 T
journal, December 1994


Granular superconductivity in polycrystalline ruthenocuprate RuSr 2 (Gd 1.5 Ce 0.5 )Cu 2 O 10−δ : magnetoresistive and magnetization studies
journal, January 2007


Defect structure and superconducting properties of La 1.8 Sr x Ca 1.2 x Cu 2 O 6 δ
journal, November 1993


Neutron scattering study on La 1.9 Ca 1.1 Cu 2 O 6 + δ and La 1.85 Sr 0.15 Ca Cu 2 O 6 + δ
journal, March 2005


Correlated electrons in high-temperature superconductors
journal, July 1994


Fluctuations in single-crystal YBa 2 Cu 3 O 6.5 : Evidence for crossover from two-dimensional to three-dimensional behavior
journal, February 2001


Magnetic measurements of the upper critical field of YBa 2 Cu 3 O 7 δ single crystals
journal, April 1989


Fluctuations of vortices in layered high- T c superconductors
journal, June 1992


Electronic structure of high-Tc superconductors
journal, April 1991


Doping a Mott insulator: Physics of high-temperature superconductivity
journal, January 2006


Scaling behavior of the specific heat of a LuBa 2 Cu 3 O 7 y single crystal near the H c 2 line
journal, May 1993


Experimental Evidence of a Dimensional Crossover in Y 1 Ba 2 Cu 3 O 7 δ
journal, March 1990


Zero-dimensional superconducting fluctuations and fluctuating diamagnetism in lead nanoparticles
journal, October 2006


Two-dimensional fluctuations in the magnetization of Bi 2 Sr 2 Ca 2 Cu 3 O 10
journal, September 1992


    Works referencing / citing this record:

    Fluctuation diamagnetic susceptibility in type-II superconductors under magnetic field
    journal, December 2019