skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Two-dimensional superconductor-insulator quantum phase transitions in an electron-doped cuprate

Abstract

Here, we use an ionic liquid-assisted electric-field effect to tune the carrier density in an electron-doped cuprate ultrathin film and cause a two-dimensional superconductor-insulator transition (SIT). The low upper critical field in this system allows us to perform magnetic-field (B)-induced SIT in the liquid-gated superconducting film. Finite-size scaling analysis indicates that SITs induced both by electric and by magnetic fields are quantum phase transitions and the transitions are governed by percolation effects-quantum mechanical in the former and classical in the latter cases. Compared to the hole-doped cuprates, the SITs in the electron-doped system occur at critical sheet resistances (R c) much lower than the pair quantum resistance R Q = h/(2e) 2 = 6.45 kΩ, suggesting the possible existence of fermionic excitations at finite temperatures at the insulating phase near the SITs.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. National Univ. of Singapore (Singapore)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1329126
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 2; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Zeng, S. W., Huang, Z., Lv, W. M., Bao, N. N., Gopinadhan, K., Jian, L. K., Herng, T. S., Liu, Z. Q., Zhao, Y. L., Li, C. J., Harsan Ma, H. J., Yang, P., Ding, J., Venkatesan, T., and Ariando, . Two-dimensional superconductor-insulator quantum phase transitions in an electron-doped cuprate. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.92.020503.
Zeng, S. W., Huang, Z., Lv, W. M., Bao, N. N., Gopinadhan, K., Jian, L. K., Herng, T. S., Liu, Z. Q., Zhao, Y. L., Li, C. J., Harsan Ma, H. J., Yang, P., Ding, J., Venkatesan, T., & Ariando, . Two-dimensional superconductor-insulator quantum phase transitions in an electron-doped cuprate. United States. doi:10.1103/PhysRevB.92.020503.
Zeng, S. W., Huang, Z., Lv, W. M., Bao, N. N., Gopinadhan, K., Jian, L. K., Herng, T. S., Liu, Z. Q., Zhao, Y. L., Li, C. J., Harsan Ma, H. J., Yang, P., Ding, J., Venkatesan, T., and Ariando, . Mon . "Two-dimensional superconductor-insulator quantum phase transitions in an electron-doped cuprate". United States. doi:10.1103/PhysRevB.92.020503.
@article{osti_1329126,
title = {Two-dimensional superconductor-insulator quantum phase transitions in an electron-doped cuprate},
author = {Zeng, S. W. and Huang, Z. and Lv, W. M. and Bao, N. N. and Gopinadhan, K. and Jian, L. K. and Herng, T. S. and Liu, Z. Q. and Zhao, Y. L. and Li, C. J. and Harsan Ma, H. J. and Yang, P. and Ding, J. and Venkatesan, T. and Ariando, .},
abstractNote = {Here, we use an ionic liquid-assisted electric-field effect to tune the carrier density in an electron-doped cuprate ultrathin film and cause a two-dimensional superconductor-insulator transition (SIT). The low upper critical field in this system allows us to perform magnetic-field (B)-induced SIT in the liquid-gated superconducting film. Finite-size scaling analysis indicates that SITs induced both by electric and by magnetic fields are quantum phase transitions and the transitions are governed by percolation effects-quantum mechanical in the former and classical in the latter cases. Compared to the hole-doped cuprates, the SITs in the electron-doped system occur at critical sheet resistances (Rc) much lower than the pair quantum resistance RQ = h/(2e)2 = 6.45 kΩ, suggesting the possible existence of fermionic excitations at finite temperatures at the insulating phase near the SITs.},
doi = {10.1103/PhysRevB.92.020503},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 2,
volume = 92,
place = {United States},
year = {2015},
month = {7}
}

Works referenced in this record:

Increased Tc in Electrolyte-Gated Cuprates
journal, May 2010

  • Dhoot, Anoop Singh; Wimbush, Stuart C.; Benseman, Tim
  • Advanced Materials, Vol. 22, Issue 23
  • DOI: 10.1002/adma.200904024

Dissipation Effects on the Superconductor-Insulator Transition in 2D Superconductors
journal, June 1999


Effects of field-induced hole-density modulation on normal-state and superconducting transport in YBa 2 Cu 3 O 7 x
journal, February 1992


Synthesis and properties of superconducting T R 2 CuO 4 ( R = Pr , Nd, Sm, Eu, Gd)
journal, March 2009


Continuous quantum phase transitions
journal, January 1997


Suppression of Metal-Insulator Transition in VO2 by Electric Field-Induced Oxygen Vacancy Formation
journal, March 2013


Evidence for a Quantum Phase Transition in Pr 2 x Ce x CuO 4 δ from Transport Measurements
journal, April 2004


Superconductor-Insulator Quantum Phase Transition in Disordered FeSe Thin Films
journal, June 2012


Superconducting Dome in a Gate-Tuned Band Insulator
journal, November 2012


Concentration range for superconductivity in high-quality Pr 2 x Ce x CuO 4 y thin films
journal, March 1997


Superconductor–insulator transition in La2 − xSr x CuO4 at the pair quantum resistance
journal, April 2011


Electric field control of the LaAlO3/SrTiO3 interface ground state
journal, December 2008

  • Caviglia, A. D.; Gariglio, S.; Reyren, N.
  • Nature, Vol. 456, Issue 7222
  • DOI: 10.1038/nature07576

Anomalous saturation of the phase coherence length in underdoped Pr 2 x Ce x CuO 4 thin films
journal, November 2000


Superconducting-Insulating Transition in Two-Dimensional a -MoGe Thin Films
journal, April 1995


Spin correlations in the electron-doped high-transition-temperature superconductor Nd2-xCexCuO4±δ
journal, January 2007


Localization and Interaction Effects in Strongly Underdoped La 2 x Sr x CuO 4
journal, May 2004


Unifying Model for Several Classes of Two-Dimensional Phase Transition
journal, April 2005


Extended Superconducting Concentration Range Observed in Pr 2 x Ce x CuO 4 δ
journal, June 1995


Approach to a superconductor-to-Bose-insulator transition in disordered films
journal, June 2008

  • Steiner, Myles A.; Breznay, Nicholas P.; Kapitulnik, Aharon
  • Physical Review B, Vol. 77, Issue 21
  • DOI: 10.1103/PhysRevB.77.212501

Onset of superconductivity in the two-dimensional limit
journal, May 1989


Kondo effect in underdoped n -type superconductors
journal, May 2003


Superconductivity in a high magnetic field: Excitation spectrum and tunneling properties
journal, May 1994


Two-dimensional character of the magnetoresistance in Nd1.85Ce0.15CuO4−δ thin films
journal, July 1991


Electrostatic Tuning of the Superconductor-Insulator Transition in Two Dimensions
journal, May 2005


Resistivity at low temperatures in electron-doped cuprate superconductors
journal, September 2010


Progress and perspectives on electron-doped cuprates
journal, September 2010


Electrostatic Control of the Evolution from a Superconducting Phase to an Insulating Phase in Ultrathin YBa 2 Cu 3 O 7 x Films
journal, July 2011


Origin of the Anomalous Low Temperature Upturn in the Resistivity of the Electron-Doped Cuprate Superconductors
journal, February 2005


Magnetic-field-tuned superconductor-insulator transition in two-dimensional films
journal, August 1990


Two-dimensional superconductor-insulator transition in bulk single-crystal YBa 2 Cu 3 O 6.38
journal, May 1992


Quantum phase transitions in disordered two-dimensional superconductors
journal, August 1990


Scaling of the insulator-to-superconductor transition in ultrathin amorphous Bi films
journal, October 1991


Superconductor–insulator quantum phase transition
journal, January 2010


Liquid-gated interface superconductivity on an atomically flat film
journal, November 2009

  • Ye, J. T.; Inoue, S.; Kobayashi, K.
  • Nature Materials, Vol. 9, Issue 2
  • DOI: 10.1038/nmat2587

Charge dynamics in underdoped Nd 2 x Ce x CuO 4 :   Pseudogap and related phenomena
journal, January 2004


Superconductor-insulator transition in two dimensions
journal, August 1999


Collective bulk carrier delocalization driven by electrostatic surface charge accumulation
journal, July 2012


Superconductivity phase diagrams for the electron-doped cuprates R 2 x Ce x Cu O 4 ( R = La , Pr, Nd, Sm, and Eu)
journal, February 2008


Discovery of superconductivity in KTaO3 by electrostatic carrier doping
journal, May 2011

  • Ueno, K.; Nakamura, S.; Shimotani, H.
  • Nature Nanotechnology, Vol. 6, Issue 7
  • DOI: 10.1038/nnano.2011.78

Electrostatic modification of novel materials
journal, November 2006

  • Ahn, C. H.; Bhattacharya, A.; Di Ventra, M.
  • Reviews of Modern Physics, Vol. 78, Issue 4, p. 1185-1212
  • DOI: 10.1103/RevModPhys.78.1185

Electronically driven superconductor-insulator transition in electrostatically doped La 2 CuO 4 + δ thin films
journal, January 2013


Electrically Induced Ferromagnetism at Room Temperature in Cobalt-Doped Titanium Dioxide
journal, May 2011


Electrostatic tuning of the superconductor to insulator transition of YBa 2 Cu 3 O 7−x using ionic liquids
journal, July 2013


Magnetic-field-induced quantum superconductor-insulator transition in Nb 0.15 Si 0.85
journal, March 2006


Electric-field-induced superconductivity in an insulator
journal, October 2008

  • Ueno, K.; Nakamura, S.; Shimotani, H.
  • Nature Materials, Vol. 7, Issue 11, p. 855-858
  • DOI: 10.1038/nmat2298

Quantum Phase Transition in the Magnetic-Field-Induced Normal State of Optimum-Doped High- T c Cuprate Superconductors at Low Temperatures
journal, January 2009


Bose glass-vortex–glass phase transition and dynamics scaling for high- T c Nd 2 x Ce x CuO 4 thin films
journal, July 1992


High-Density Carrier Accumulation in ZnO Field-Effect Transistors Gated by Electric Double Layers of Ionic Liquids
journal, April 2009

  • Yuan, Hongtao; Shimotani, Hidekazu; Tsukazaki, Atsushi
  • Advanced Functional Materials, Vol. 19, Issue 7
  • DOI: 10.1002/adfm.200801633

Quantum percolation and plateau transitions in the quantum Hall effect
journal, June 1993


Disorder and Transport in Cuprates: Weak Localization and Magnetic Contributions
journal, September 2001


Superconductor‐Insulator Transitions in the Two‐Dimensional Limit
journal, November 1998

  • Goldman, Allen M.; Marković, Nina
  • Physics Today, Vol. 51, Issue 11
  • DOI: 10.1063/1.882069