Pascal conductance series in ballistic one-dimensional LaAlO3/SrTiO3 channels

被引：48

作者：

Briggeman, Megan ^{[1
,2
]}

Tomczyk, Michelle ^{[1
,2
]}

Tian, Binbin ^{[1
,2
]}

Lee, Hyungwoo ^{[3
]}

Lee, Jung-Woo ^{[3
]}

He, Yuchi ^{[2
,4
]}

Tylan-Tyler, Anthony ^{[1
,2
]}

Huang, Mengchen ^{[1
,2
]}

Eom, Chang-Beom ^{[3
]}

Pekker, David ^{[1
,2
]}

Mong, Roger S. K. ^{[1
,2
]}

Irvin, Patrick ^{[1
,2
]}

Levy, Jeremy ^{[1
,2
]}

机构：

[1] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

[2] Pittsburgh Quantum Inst, Pittsburgh, PA 15260 USA

[3] Univ Wisconsin, Dept Mat Sci & Engn, 1509 Univ Ave, Madison, WI 53706 USA

[4] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA

来源：

SCIENCE | 2020年 / 367卷 / 6479期

关键词：

QUANTIZED CONDUCTANCE; QUANTUM; MODEL;

D O I：

10.1126/science.aat6467

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

One-dimensional electronic systems can support exotic collective phases because of the enhanced role of electron correlations. We describe the experimental observation of a series of quantized conductance steps within strongly interacting electron waveguides formed at the lanthanum aluminate-strontium titanate (LaAlO3/SrTiO3) interface. The waveguide conductance follows a characteristic sequence within Pascal's triangle: (1, 3, 6, 10, 15, ...). e(2)/h, where e is the electron charge and h is the Planck constant. This behavior is consistent with the existence of a family of degenerate quantum liquids formed from bound states of n = 2, 3, 4,. electrons. Our experimental setup could provide a setting for solid-state analogs of a wide range of composite fermionic phases.

引用

页码：769 / +

页数：35

共 45 条

[1] CRITICAL-BEHAVIOR OF SU(N) QUANTUM CHAINS AND TOPOLOGICAL NON-LINEAR SIGMA-MODELS [J].