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Spectroscopic imaging STM studies of broken electronic symmetries in underdoped cuprates

Cornell Affiliated Author(s)

Author

K. Fujita
A. Mesaros
M.J. Lawler
S. Sachdev
J. Zaanen
H. Eisaki
S. Uchida
Eun-Ah Kim
J.C. Davis

Abstract

We use spectroscopic imaging scanning tunneling microscopy (SI-STM) to visualize the spatial symmetries of the electronic states that occur at the pseudogap energy scale in underdoped cuprates. We find evidence for the local intra-unit-cell electronic nematicity - by which we mean the disordered breaking of C 4v symmetry within each CuO 2 unit cell [1]. We also find that the coexisting incommensurate (smectic) electronic modulations couple to the intra-unit-cell nematicity through their 2π topological defects [2]. © 2012 Elsevier B.V. All rights reserved.

Date Published

Journal

Physica B: Condensed Matter

Volume

407

Issue

11

Number of Pages

1859-1863,

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84859556173&doi=10.1016%2fj.physb.2012.01.049&partnerID=40&md5=a436ababa4403a5bc5d119696442154a

DOI

10.1016/j.physb.2012.01.049

Group (Lab)

J.C. Seamus Davis Group
Michael Lawler Group

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