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  Current-induced strong diamagnetism in the Mott insulator Ca2RuO4

Sow, C., Yonezawa, S., Kitamura, S., Oka, T., Kuroki, K., Nakamura, F., et al. (2017). Current-induced strong diamagnetism in the Mott insulator Ca2RuO4. Science, 358(6366), 1084-1087. doi:10.1126/science.aah4297.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0000-8180-C Version Permalink: http://hdl.handle.net/21.11116/0000-0003-3DC0-0
Genre: Journal Article

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 Creators:
Sow, Chanchal1, Author
Yonezawa, Shingo1, Author
Kitamura, Sota2, Author              
Oka, Takashi2, Author              
Kuroki, Kazuhiko1, Author
Nakamura, Fumihiko1, Author
Maeno, Yoshiteru1, Author
Affiliations:
1external, ou_persistent22              
2Max Planck Institute for the Physics of Complex Systems, Max Planck Society, ou_2117288              

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 MPIPKS: Strongly correlated electrons
 Abstract: Mott insulators can host a surprisingly diverse set of quantum phenomena when their frozen electrons are perturbed by various stimuli. Superconductivity, metal-insulator transition, and colossal magnetoresistance induced by element substitution, pressure, and magnetic field are prominent examples. Here we report strong diamagnetism in the Mott insulator calcium ruthenate (Ca2RuO4) induced by dc electric current. The application of a current density of merely 1 ampere per centimeter squared induces diamagnetism stronger than that in other nonsuperconducting materials. This change is coincident with changes in the transport properties as the system becomes semimetallic. These findings suggest that dc current may be a means to control the properties of materials in the vicinity of a Mott insulating transition.

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Language(s): eng - English
 Dates: 2017-11-242017-11-242017-11-24
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000416590400048
DOI: 10.1126/science.aah4297
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Title: Science
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Association for the Advancement of Science
Pages: - Volume / Issue: 358 (6366) Sequence Number: - Start / End Page: 1084 - 1087 Identifier: ISSN: 0036-8075
CoNE: https://pure.mpg.de/cone/journals/resource/991042748276600_1