From Mott state to superconductivity in 1T-TaS2 View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2008-11-09

AUTHORS

B. Sipos, A. F. Kusmartseva, A. Akrap, H. Berger, L. Forró, E. Tutiš

ABSTRACT

The search for the coexistence between superconductivity and other collective electronic states in many instances promoted the discovery of novel states of matter. The manner in which the different types of electronic order combine remains an ongoing puzzle. 1T-TaS2 is a layered material, and the only transition-metal dichalcogenide (TMD) known to develop the Mott phase. Here, we show the appearance of a series of low-temperature electronic states in 1T-TaS2 with pressure: the Mott phase melts into a textured charge-density wave (CDW); superconductivity develops within the CDW state, and survives to very high pressures, insensitive to subsequent disappearance of the CDW state and, surprisingly, also the strong changes in the normal state. This is also the first reported case of superconductivity in a pristine 1T-TMD compound. We demonstrate that superconductivity first develops within the state marked by a commensurability-driven, Coulombically frustrated, electronic phase separation. More... »

PAGES

960-965

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/nmat2318

DOI

http://dx.doi.org/10.1038/nmat2318

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1044349122

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/18997775


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