Universität zu Köln

Jolie, Wouter, Murray, Clifford, Weiss, Philipp S., Hall, Joshua, Portner, Fabian, Atodiresei, Nicolae, Krasheninnikov, Arkady, V, Busse, Carsten, Komsa, Hannu-Pekka, Rosch, Achim ORCID: 0000-0002-6586-5721 and Michely, Thomas (2019). Tomonaga-Luttinger Liquid in a Box: Electrons Confined within MoS2 Mirror-Twin Boundaries. Phys. Rev. X, 9 (1). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2160-3308

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Abstract

Two- or three-dimensional metals are usually well described by weakly interacting, fermionic quasiparticles. This concept breaks down in one dimension due to strong Coulomb interactions. There, low-energy electronic excitations are expected to be bosonic collective modes, which fractionalize into independent spin- and charge-density waves. Experimental research on one-dimensional metals is still hampered by their difficult realization, their limited accessibility to measurements, and by competing or obscuring effects such as Peierls distortions or zero bias anomalies. Here we overcome these difficulties by constructing a well-isolated, one-dimensional metal of finite length present in MoS2 mirror-twin boundaries. Using scanning tunneling spectroscopy we measure the single-particle density of the interacting electron system as a function of energy and position in the 1D box. Comparison to theoretical modeling provides unambiguous evidence that we are observing spin-charge separation in real space.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Jolie, Wouter UNSPECIFIED UNSPECIFIED UNSPECIFIED Murray, Clifford UNSPECIFIED UNSPECIFIED UNSPECIFIED Weiss, Philipp S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hall, Joshua UNSPECIFIED UNSPECIFIED UNSPECIFIED Portner, Fabian UNSPECIFIED UNSPECIFIED UNSPECIFIED Atodiresei, Nicolae UNSPECIFIED UNSPECIFIED UNSPECIFIED Krasheninnikov, Arkady, V UNSPECIFIED UNSPECIFIED UNSPECIFIED Busse, Carsten UNSPECIFIED UNSPECIFIED UNSPECIFIED Komsa, Hannu-Pekka UNSPECIFIED UNSPECIFIED UNSPECIFIED Rosch, Achim UNSPECIFIED orcid.org/0000-0002-6586-5721 UNSPECIFIED Michely, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-153316
DOI:	10.1103/PhysRevX.9.011055
Journal or Publication Title:	Phys. Rev. X
Volume:	9
Number:	1
Date:	2019
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2160-3308
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute for Theoretical Physics
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SPIN-CHARGE SEPARATION; DEFECTS; MODEL Multiple languages Physics, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/15331