Superconductivity in few-layer stanene

doi:10.1038/s41567-017-0031-6

Title: Superconductivity in few-layer stanene

Abstract

A single atomic slice of α-tin—stanene—has been predicted to host the quantum spin Hall effect at room temperature, offering an ideal platform to study low-dimensional and topological physics. Although recent research has focused on monolayer stanene, the quantum size effect in few-layer stanene could profoundly change material properties, but remains unexplored. By exploring the layer degree of freedom, we discover superconductivity in few-layer stanene down to a bilayer grown on PbTe, while bulk α-tin is not superconductive. Through substrate engineering, we further realize a transition from a single-band to a two-band superconductor with a doubling of the transition temperature. In situ angle-resolved photoemission spectroscopy (ARPES) together with first-principles calculations elucidate the corresponding band structure. The theory also indicates the existence of a topologically non-trivial band. Thus, our experimental findings open up novel strategies for constructing two-dimensional topological superconductors.

Authors:

Liao, Menghan ^[1]; Zang, Yunyi ^[1]; Guan, Zhaoyong ^[1]; Li, Haiwei ^[1]; Gong, Yan ^[1]; Zhu, Kejing ^[1]; Hu, Xiao-Peng ^[2];

^[2]; Xu, Yong ^[3]; Wang, Ya-Yu ^[2]; He, Ke ^[2]; Ma, Xu-Cun ^[2]; Zhang, Shou-Cheng ^[4]; Xue, Qi-Kun ^[2]

Tsinghua Univ., Beijing (China). State Key Lab. of Low-Dimensional Quantum Physics and Dept. of Physics
Tsinghua Univ., Beijing (China). State Key Lab. of Low-Dimensional Quantum Physics and Dept. of Physics; Collaborative Innovation Center of Quantum Matter (CICQM), Beijing (China)
Tsinghua Univ., Beijing (China). State Key Lab. of Low-Dimensional Quantum Physics and Dept. of Physics; Collaborative Innovation Center of Quantum Matter (CICQM), Beijing (China); RIKEN Center for Emergent Matter Science (CEMS), Saitama (Japan)
Stanford Univ., CA (United States). Dept. of Physics

Publication Date:: 2018-01-15

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; Ministry of Science and Technology (MOST) (China); National Natural Science Foundation of China (NNSFC); Beijing Innovation Center for Future Chip (ICFC); Tsinghua Univ., Beijing (China); Thousand-Young-Talents Program (China)

OSTI Identifier:: 1438571

Grant/Contract Number:: AC02-76SF00515; 2017YFA0304600; 2017YFA0302902; 11604176

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Nature Physics

Additional Journal Information:: Journal Volume: 14; Journal Issue: 4; Journal ID: ISSN 1745-2473

Publisher:: Nature Publishing Group (NPG)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; Superconducting properties and materials; Topological matter

Citation Formats


                    Liao, Menghan, Zang, Yunyi, Guan, Zhaoyong, Li, Haiwei, Gong, Yan, Zhu, Kejing, Hu, Xiao-Peng, Zhang, Ding, Xu, Yong, Wang, Ya-Yu, He, Ke, Ma, Xu-Cun, Zhang, Shou-Cheng, and Xue, Qi-Kun. Superconductivity in few-layer stanene.  United States: N. p., 2018. 
        Web.  doi:10.1038/s41567-017-0031-6.

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                    Liao, Menghan, Zang, Yunyi, Guan, Zhaoyong, Li, Haiwei, Gong, Yan, Zhu, Kejing, Hu, Xiao-Peng, Zhang, Ding, Xu, Yong, Wang, Ya-Yu, He, Ke, Ma, Xu-Cun, Zhang, Shou-Cheng, & Xue, Qi-Kun. Superconductivity in few-layer stanene.  United States.  doi:10.1038/s41567-017-0031-6.

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                    Liao, Menghan, Zang, Yunyi, Guan, Zhaoyong, Li, Haiwei, Gong, Yan, Zhu, Kejing, Hu, Xiao-Peng, Zhang, Ding, Xu, Yong, Wang, Ya-Yu, He, Ke, Ma, Xu-Cun, Zhang, Shou-Cheng, and Xue, Qi-Kun. Mon .  
        "Superconductivity in few-layer stanene".  United States.  doi:10.1038/s41567-017-0031-6.  https://www.osti.gov/servlets/purl/1438571.

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@article{osti_1438571,

  title        = {Superconductivity in few-layer stanene},

  author       = {Liao, Menghan and Zang, Yunyi and Guan, Zhaoyong and Li, Haiwei and Gong, Yan and Zhu, Kejing and Hu, Xiao-Peng and Zhang, Ding and Xu, Yong and Wang, Ya-Yu and He, Ke and Ma, Xu-Cun and Zhang, Shou-Cheng and Xue, Qi-Kun},

  abstractNote = {A single atomic slice of α-tin—stanene—has been predicted to host the quantum spin Hall effect at room temperature, offering an ideal platform to study low-dimensional and topological physics. Although recent research has focused on monolayer stanene, the quantum size effect in few-layer stanene could profoundly change material properties, but remains unexplored. By exploring the layer degree of freedom, we discover superconductivity in few-layer stanene down to a bilayer grown on PbTe, while bulk α-tin is not superconductive. Through substrate engineering, we further realize a transition from a single-band to a two-band superconductor with a doubling of the transition temperature. In situ angle-resolved photoemission spectroscopy (ARPES) together with first-principles calculations elucidate the corresponding band structure. The theory also indicates the existence of a topologically non-trivial band. Thus, our experimental findings open up novel strategies for constructing two-dimensional topological superconductors.},

  doi          = {10.1038/s41567-017-0031-6},

  journal      = {Nature Physics},

  issn         = {1745-2473},

  number       = 4,

  volume       = 14,

  place        = {United States},

  year         = {2018},

  month        = {1}

}

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Journal Article:

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DOI: 10.1038/s41567-017-0031-6

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Cited by: 20 works

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Figures / Tables:

Figure 1: Superconductive properties of few-layer stanene. a, illustration of stanene lattice and the Sn/PbTe/Bi₂Te₃ sandwich structure. Upper left panel shows a top view of only one layer of stanene. Distances marked are from first-principle calculations. b, Normalized resistance of stanene with increasing number of layers grown on substrates consistingmore »

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Works referencing / citing this record:

Two- and one-dimensional quantum spin Hall states in stanene-functionalized GaTe and InTe matrices
journal, January 2019

Menshchikova, T. V.; Rusinov, I. P.; Golub, P.
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Figures / Tables found in this record:

Extended Data Figure 1 (p. 15)

Extended Data Figure 2 (p. 15)

Extended Data Figure 3 (p. 16)

Extended Data Figure 4 (p. 17)

Extended Data Figure 5 (p. 18)

Extended Data Figure 6 (p. 18)

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Similar Records

Title: Superconductivity in few-layer stanene

Abstract

Citation Formats

Figures / Tables:

Buckled two-dimensional Xene sheets journal, January 2017

Creation and control of a two-dimensional electron liquid at the bare SrTiO3 surface journal, January 2011

Metallic ground state in an ion-gated two-dimensional superconductor journal, October 2015

Evidence for two-dimensional Ising superconductivity in gated MoS2 journal, November 2015

Ein neuer Effekt bei Eintritt der Supraleitf�higkeit journal, November 1933

Ising pairing in superconducting NbSe2 atomic layers journal, November 2015

Nature of the quantum metal in a two-dimensional crystalline superconductor journal, December 2015

Superconductivity in one-atomic-layer metal films grown on Si(111) journal, January 2010

On the origin of critical temperature enhancement in atomically thin superconductors journal, April 2017

Quantum Griffiths singularity of superconductor-metal transition in Ga thin films journal, October 2015

Discovery of robust in-plane ferroelectricity in atomic-thick SnTe journal, July 2016

Limits of the upper critical field in dirty two-gap superconductors journal, June 2007

Band Structure and Laser Action in Pb x Sn 1 − x Te journal, June 1966

Hydrogen as a Cause of Doping in Zinc Oxide journal, July 2000

Two-Dimensional Superconductor with a Giant Rashba Effect: One-Atom-Layer Tl-Pb Compound on Si(111) journal, October 2015

Observation of Quantum Dissipation in the Vortex State of a Highly Disordered Superconducting Thin Film journal, February 1996

Anomalous Band Gap Evolution from Band Inversion in Pb 1− x Sn x Te Nanocrystals journal, April 2009

Hard gap in epitaxial semiconductor–superconductor nanowires journal, January 2015

Elemental Topological Insulator with Tunable Fermi Level: Strained α -Sn on InSb(001) journal, October 2013

Electron-phonon interactions and superconductivity in Si, Ge, and Sn journal, October 1986

A review of two-band superconductivity: materials and effects on the thermodynamic and reversible mixed-state properties journal, February 2013

Review of 2D superconductivity: the ultimate case of epitaxial monolayers journal, November 2016

Epitaxial growth of two-dimensional stanene journal, August 2015

Superconductivity at the Two-Dimensional Limit journal, April 2009

Electron—phonon Coupling and the Superconducting Phase Diagram of the LaAlO3—SrTiO3 Interface journal, July 2015

Two-Gap Superconductivity in LaNiGa 2 with Nonunitary Triplet Pairing and Even Parity Gap Symmetry journal, July 2016

Highly crystalline 2D superconductors journal, December 2016

Spin to Charge Conversion at Room Temperature by Spin Pumping into a New Type of Topological Insulator: α -Sn Films journal, March 2016

Enhanced Thermoelectric Performance and Anomalous Seebeck Effects in Topological Insulators journal, June 2014

Experimental Observation of Dirac-like Surface States and Topological Phase Transition in Pb 1 − x Sn x Te ( 111 ) Films journal, May 2014

Epitaxial growth and quantum well states study of Sn thin films on Sn induced Si(111)- ( 2 3 × 2 3 ) R 30 ° surface journal, May 2008

Large-Gap Quantum Spin Hall Insulators in Tin Films journal, September 2013

Two-dimensional time-reversal-invariant topological superconductivity in a doped quantum spin-Hall insulator journal, August 2014

Large-gap quantum spin Hall states in decorated stanene grown on a substrate journal, August 2015

Hydrogenated ultra-thin tin films predicted as two-dimensional topological insulators journal, November 2014

Prediction of Near-Room-Temperature Quantum Anomalous Hall Effect on Honeycomb Materials journal, December 2014

Two- and one-dimensional quantum spin Hall states in stanene-functionalized GaTe and InTe matrices journal, January 2019

Buckled two-dimensional Xene sheets
journal, January 2017

Creation and control of a two-dimensional electron liquid at the bare SrTiO3 surface
journal, January 2011

Metallic ground state in an ion-gated two-dimensional superconductor
journal, October 2015

Evidence for two-dimensional Ising superconductivity in gated MoS2
journal, November 2015

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journal, November 1933

Ising pairing in superconducting NbSe2 atomic layers
journal, November 2015

Nature of the quantum metal in a two-dimensional crystalline superconductor
journal, December 2015

Superconductivity in one-atomic-layer metal films grown on Si(111)
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On the origin of critical temperature enhancement in atomically thin superconductors
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Quantum Griffiths singularity of superconductor-metal transition in Ga thin films
journal, October 2015

Discovery of robust in-plane ferroelectricity in atomic-thick SnTe
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Limits of the upper critical field in dirty two-gap superconductors
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Band Structure and Laser Action in ${Pb}_{x} {Sn}_{1 - x} Te$
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Hydrogen as a Cause of Doping in Zinc Oxide
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Two-Dimensional Superconductor with a Giant Rashba Effect: One-Atom-Layer Tl-Pb Compound on Si(111)
journal, October 2015

Observation of Quantum Dissipation in the Vortex State of a Highly Disordered Superconducting Thin Film
journal, February 1996

Anomalous Band Gap Evolution from Band Inversion in Pb _{1− x} Sn _x Te Nanocrystals
journal, April 2009

Hard gap in epitaxial semiconductor–superconductor nanowires
journal, January 2015

Elemental Topological Insulator with Tunable Fermi Level: Strained $α$ -Sn on InSb(001)
journal, October 2013

Electron-phonon interactions and superconductivity in Si, Ge, and Sn
journal, October 1986

A review of two-band superconductivity: materials and effects on the thermodynamic and reversible mixed-state properties
journal, February 2013

Review of 2D superconductivity: the ultimate case of epitaxial monolayers
journal, November 2016

Epitaxial growth of two-dimensional stanene
journal, August 2015

Superconductivity at the Two-Dimensional Limit
journal, April 2009

Electron—phonon Coupling and the Superconducting Phase Diagram of the LaAlO3—SrTiO3 Interface
journal, July 2015

Two-Gap Superconductivity in ${LaNiGa}_{2}$ with Nonunitary Triplet Pairing and Even Parity Gap Symmetry
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Large-gap quantum spin Hall states in decorated stanene grown on a substrate
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Hydrogenated ultra-thin tin films predicted as two-dimensional topological insulators
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