Superconductor-Insulator Transitions in Exfoliated Bi2Sr2CaCu2O8+δ Flakes

被引：71

作者：

Liao, Menghan ^{[1
,2
]}

Zhu, Yuying ^{[1
,2
]}

Zhang, Jin ^{[1
,2
]}

Zhong, Ruidan ^{[3
]}

Schneeloch, John ^{[3
,4
]}

Gu, Genda ^{[3
]}

Jiang, Kaili ^{[1
,2
,5
,6
]}

Zhang, Ding ^{[1
,2
,6
]}

Ma, Xucun ^{[1
,2
,6
]}

Xue, Qi-Kun ^{[1
,2
,6
]}

机构：

[1] Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

[3] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA

[4] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[5] Tsinghua Univ, Tsinghua Foxconn Nanotechnol Res Ctr, Beijing 100084, Peoples R China

[6] Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China

来源：

NANO LETTERS | 2018年 / 18卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Bi2Sr2CaCu2O8+delta flakes; solid ion conductor; superconductor-insulator transition; lithium intercalation; tunneling spectroscopy; HIGH-TEMPERATURE SUPERCONDUCTORS; VACUUM TUNNELING SPECTROSCOPY; MOTT INSULATOR; DENSITY; EVOLUTION; STATES; FILMS;

D O I：

10.1021/acs.nanolett.8b02183

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We realize superconductor-insulator transitions (SIT) in mechanically exfoliated Bi2Sr2CaCu2O8+delta (BSCCO) flakes and address simultaneously their transport properties as well as the evolution of density of states. Back-gating via the solid ion conductor (SIC) engenders a SIT in BSCCO due to the modulation of carrier density by intercalated lithium ions. Scaling analysis indicates that the SIT follows the theoretical description of a two-dimensional quantum phase transition (2D-QPT). We further carry out tunneling spectroscopy in graphite(G)/BSCCO heterojunctions. We observe V-shaped gaps in the critical regime of the SIT. The density of states in BSCCO gets symmetrically suppressed by further going into the insulating regime. Our technique of combining solid state gating with tunneling spectroscopy can be easily applied to the study of other two-dimensional materials.

引用

页码：5660 / 5665

页数：6

共 50 条

[41] Evidence for Kosterlitz-Thouless and three-dimensional XY critical behavior in Bi2Sr2CaCu2O8+δ [J].

Weyeneth, S. ;

Schneider, T. ;

Giannini, E. .

PHYSICAL REVIEW B, 2009, 79 (21)

[42] Comment on "Counterintuitive consequence of heating in strongly-driven intrinsic junctions of Bi2Sr2CaCu2O8+δ mesas" [J].

Krasnov, V. M. .

PHYSICAL REVIEW B, 2011, 84 (13)

[43] Spectral decomposition and matrix element effects in scanning tunneling spectroscopy of Bi2Sr2CaCu2O8+δ [J].

Nieminen, Jouko ;

Suominen, Ilpo ;

Markiewicz, R. S. ;

Lin, Hsin ;

Bansil, A. .

PHYSICAL REVIEW B, 2009, 80 (13)

[44] Direct spectroscopic evidence for phase competition between the pseudogap and superconductivity in Bi2Sr2CaCu2O8+δ [J].

Hashimoto, Makoto ;

Nowadnick, Elizabeth A. ;

He, Rui-Hua ;

Vishik, Inna M. ;

Moritz, Brian ;

He, Yu ;

Tanaka, Kiyohisa ;

Moore, Robert G. ;

Lu, Donghui ;

Yoshida, Yoshiyuki ;

Ishikado, Motoyuki ;

Sasagawa, Takao ;

Fujita, Kazuhiro ;

Ishida, Shigeyuki ;

Uchida, Shinichi ;

Eisaki, Hiroshi ;

Hussain, Zahid ;

Devereaux, Thomas P. ;

Shen, Zhi-Xun .

NATURE MATERIALS, 2015, 14 (01) :37-42

[45] Distribution of the Impurity Resonance Energy in Bi2Sr2CaCu2O8+δ Observed by Scanning Tunneling Spectroscopy [J].

Nakamura, H. ;

Machida, T. ;

Iguchi, M. ;

Yamasaki, T. ;

Kaneko, A. ;

Kariya, H. ;

Morohoshi, D. ;

Ooi, S. ;

Mochiku, T. ;

Hirata, K. ;

Hasegawa, T. ;

Sakata, H. .

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2013, 26 (08) :2633-2635

[46] Detecting incipient stripe order in the high-temperature superconductor Bi2Sr2CaCu2O8+x [J].

da Silva Neto, Eduardo H. ;

Aynajian, Pegor ;

Parker, Colin V. ;

Yazdani, Ali .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2012, 481 :153-160

[47] Tunneling spectra of submicron Bi2Sr2CaCu2O8+δ intrinsic Josephson junctions: evolution from superconducting gap to pseudogap [J].

Zhao, S. P. ;

Zhu, X. B. ;

Tang, H. .

EUROPEAN PHYSICAL JOURNAL B, 2009, 71 (02) :195-201

[48] Discontinuity of the ultrafast electronic response of underdoped superconducting Bi2Sr2CaCu2O8+δ strongly excited by ultrashort light pulses [J].

Giannetti, Claudio ;

Coslovich, Giacomo ;

Cilento, Federico ;

Ferrini, Gabriele ;

Eisaki, Hiroshi ;

Kaneko, Nobuhisa ;

Greven, Martin ;

Parmigiani, Fulvio .

PHYSICAL REVIEW B, 2009, 79 (22)

[49] Low-temperature electron microscopy of the surface of the superconductor Bi2Sr2CaCu2O8 [J].

Tomashpolsky Y.Y. ;

Vorontsov P.S. .

Tomashpolsky, Yu. Ya., 1600, Izdatel'stvo Nauka (08) :912-915

[50] Strain dependent properties of the Bi2Sr2CaCu2O8 superconductor: an ab initio study [J].

Yelpo, Carla ;

Favre, Sofia ;

Ariosa, Daniel ;

Faccio, Ricardo .

PHYSICA SCRIPTA, 2025, 100 (03)

← 1 2 3 4 5 →