The demise of superfluid density in overdoped La2-xSrxCuO4 films grown by molecular beam epitaxy

Bozovic, I.; He, X.; Wu, J.; Bollinger, A. T.

doi:10.1007/s10948-016-3819-1

Title: The demise of superfluid density in overdoped La_2-xSr_xCuO₄ films grown by molecular beam epitaxy

Abstract

Here, we synthesize La_2–xSr_xCuO₄ thin films using atomic layer-by-layer molecular beam epitaxy (ALL-MBE). The films are high-quality—singe crystal, atomically smooth, and very homogeneous. The critical temperature (T_c) shows a very little (<1 K) variation within a film of 10×10 mm ² area. The large statistics (over 2000 films) is crucial to discern intrinsic properties. We measured the absolute value of the magnetic penetration depth λ with the accuracy better than 1 % and mapped densely the entire overdoped side of the La_2–xSr_xCuO₄ phase diagram. A new scaling law is established accurately for the dependence of T_c on the superfluid density. The scaling we observe is incompatible with the standard Bardeen-Cooper-Schrieffer picture and points to local pairing.

Authors:

Bozovic, I. ^[1]; He, X. ^[1]; Wu, J. ^[2]; Bollinger, A. T. ^[2]

Brookhaven National Lab. (BNL), Upton, NY (United States); Yale Univ., New Haven, CT (United States). Dept. of Applied Physics
Brookhaven National Lab. (BNL), Upton, NY (United States)

Publication Date:: Fri Sep 30 00:00:00 EDT 2016

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1336155

Report Number(s):: BNL-112666-2016-JA
Journal ID: ISSN 1557-1939; R&D Project: MA509MACA; KC0203020

Grant/Contract Number:: SC00112704

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Superconductivity and Novel Magnetism

Additional Journal Information:: Journal Name: Journal of Superconductivity and Novel Magnetism; Journal ID: ISSN 1557-1939

Publisher:: Springer

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; high-temperature superconductivity; cuprate; thin films; molecular beam epitaxy; superfluid density

Citation Formats


                    Bozovic, I., He, X., Wu, J., and Bollinger, A. T. The demise of superfluid density in overdoped La2-xSrxCuO4 films grown by molecular beam epitaxy.  United States: N. p., 2016. 
Web.  doi:10.1007/s10948-016-3819-1.

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                    Bozovic, I., He, X., Wu, J., & Bollinger, A. T. The demise of superfluid density in overdoped La2-xSrxCuO4 films grown by molecular beam epitaxy.  United States.  https://doi.org/10.1007/s10948-016-3819-1

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                    Bozovic, I., He, X., Wu, J., and Bollinger, A. T. Fri .  
"The demise of superfluid density in overdoped La2-xSrxCuO4 films grown by molecular beam epitaxy".  United States.  https://doi.org/10.1007/s10948-016-3819-1.  https://www.osti.gov/servlets/purl/1336155.

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@article{osti_1336155,

  title        = {The demise of superfluid density in overdoped La2-xSrxCuO4 films grown by molecular beam epitaxy},

  author       = {Bozovic, I. and He, X. and Wu, J. and Bollinger, A. T.},

  abstractNote = {Here, we synthesize La2–xSrxCuO4 thin films using atomic layer-by-layer molecular beam epitaxy (ALL-MBE). The films are high-quality—singe crystal, atomically smooth, and very homogeneous. The critical temperature (Tc) shows a very little (<1 K) variation within a film of 10×10 mm 2 area. The large statistics (over 2000 films) is crucial to discern intrinsic properties. We measured the absolute value of the magnetic penetration depth λ with the accuracy better than 1 % and mapped densely the entire overdoped side of the La2–xSrxCuO4 phase diagram. A new scaling law is established accurately for the dependence of Tc on the superfluid density. The scaling we observe is incompatible with the standard Bardeen-Cooper-Schrieffer picture and points to local pairing.},

  doi          = {10.1007/s10948-016-3819-1},

  journal      = {Journal of Superconductivity and Novel Magnetism},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Sep 30 00:00:00 EDT 2016},

  month        = {Fri Sep 30 00:00:00 EDT 2016}

}

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Similar Records

Title: The demise of superfluid density in overdoped La2-xSrxCuO4 films grown by molecular beam epitaxy

Abstract

Citation Formats

A contactless method for measurement of the critical current density and critical temperature of superconducting films journal, April 1991

Effect of strong scattering on the low-temperature penetration depth of a d -wave superconductor journal, August 1993

Muon spin rotation study of the correlation between T c and n s / m * in overdoped Tl 2 Ba 2 CuO 6 + δ journal, September 1993

From quantum matter to high-temperature superconductivity in copper oxides journal, February 2015

High-Temperature Superconductivity in a Single Copper-Oxygen Plane journal, October 2009

High-temperature interface superconductivity between metallic and insulating copper oxides journal, October 2008

Evidence for the Kosterlitz-Thouless Transition in Thin Superconducting Aluminum Films journal, January 1980

Numerical modeling of a two-coil apparatus for measuring the magnetic penetration depth in superconducting films and arrays journal, January 1996

Superconducting electrons go missing journal, August 2016

Magnetic-field penetration depth in TI2Ba2CuO6+δ in the overdoped regime journal, August 1993

Variation of the in-plane penetration depth λ ab as a function of doping in La 2 − x Sr x CuO 4 ± δ thin films on SrTiO 3 : Implications for the overdoped state journal, September 1996

Dependence of the critical temperature in overdoped copper oxides on superfluid density journal, August 2016

Microwave spectroscopy of thermally excited quasiparticles in YBa 2 Cu 3 O 6.99 journal, July 1999

Numerical modeling and experimental considerations for a two-coil apparatus to measure the complex conductivity of superconducting films journal, April 1998

Superconductor-to-metal quantum phase transition in overdoped La 2 − x Sr x CuO 4 journal, April 2011

Vortex dynamics in a type-II superconducting film and complex linear-response functions journal, December 1992

Atomic-layer engineering of superconducting oxides: yesterday, today, tomorrow journal, March 2001

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

Magnetic penetration depth and condensate density of cuprate high- T c superconductors determined by muon-spin-rotation experiments journal, October 1995

Superfluid response in monolayer high- T c cuprates journal, June 2003

On the Superfluid Fraction of an Arbitrary Many-Body System at T=0 journal, November 1998

Superfluid Density in a Highly Underdoped YBa 2 Cu 3 O 6 + y Superconductor journal, December 2007

Universal Correlations between T c and n s m * (Carrier Density over Effective Mass) in High- T c Cuprate Superconductors journal, May 1989

Superfluid density in cuprate high- T c superconductors: A new paradigm journal, November 2003

Title: The demise of superfluid density in overdoped La_2-xSr_xCuO₄ films grown by molecular beam epitaxy

A contactless method for measurement of the critical current density and critical temperature of superconducting films
journal, April 1991

Effect of strong scattering on the low-temperature penetration depth of a d -wave superconductor
journal, August 1993

Muon spin rotation study of the correlation between $T_{c}$ and $n_{s}$ / $m^{*}$ in overdoped ${Tl}_{2}$ ${Ba}_{2}$ ${CuO}_{6 + δ}$
journal, September 1993

From quantum matter to high-temperature superconductivity in copper oxides
journal, February 2015

High-Temperature Superconductivity in a Single Copper-Oxygen Plane
journal, October 2009

High-temperature interface superconductivity between metallic and insulating copper oxides
journal, October 2008

Evidence for the Kosterlitz-Thouless Transition in Thin Superconducting Aluminum Films
journal, January 1980

Numerical modeling of a two-coil apparatus for measuring the magnetic penetration depth in superconducting films and arrays
journal, January 1996

Superconducting electrons go missing
journal, August 2016

Magnetic-field penetration depth in TI2Ba2CuO6+δ in the overdoped regime
journal, August 1993

Variation of the in-plane penetration depth $λ_{ab}$ as a function of doping in ${La}_{2 - x}$ ${Sr}_{x}$ ${CuO}_{4 \pm δ}$ thin films on ${SrTiO}_{3}$ : Implications for the overdoped state
journal, September 1996

Dependence of the critical temperature in overdoped copper oxides on superfluid density
journal, August 2016

Microwave spectroscopy of thermally excited quasiparticles in ${YBa}_{2} {Cu}_{3} O_{6.99}$
journal, July 1999

Numerical modeling and experimental considerations for a two-coil apparatus to measure the complex conductivity of superconducting films
journal, April 1998

Superconductor-to-metal quantum phase transition in overdoped La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$
journal, April 2011

Vortex dynamics in a type-II superconducting film and complex linear-response functions
journal, December 1992

Atomic-layer engineering of superconducting oxides: yesterday, today, tomorrow
journal, March 2001

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

Magnetic penetration depth and condensate density of cuprate high- $T_{c}$ superconductors determined by muon-spin-rotation experiments
journal, October 1995

Superfluid response in monolayer high- $T_{c}$ cuprates
journal, June 2003

On the Superfluid Fraction of an Arbitrary Many-Body System at T=0
journal, November 1998

Superfluid Density in a Highly Underdoped ${YBa}_{2} {Cu}_{3} O_{6 + y}$ Superconductor
journal, December 2007

Universal Correlations between $T_{c}$ and $\frac{n_{s}}{m^{*}}$ (Carrier Density over Effective Mass) in High- $T_{c}$ Cuprate Superconductors
journal, May 1989

Superfluid density in cuprate high- $T_{c}$ superconductors: A new paradigm
journal, November 2003