{"id":401411,"date":"2025-09-06T01:25:10","date_gmt":"2025-09-06T01:25:10","guid":{"rendered":"https:\/\/www.europesays.com\/uk\/401411\/"},"modified":"2025-09-06T01:25:10","modified_gmt":"2025-09-06T01:25:10","slug":"floquet-effects-unlock-graphenes-potential-for-future-electronics","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/uk\/401411\/","title":{"rendered":"Floquet effects unlock graphene’s potential for future electronics"},"content":{"rendered":"

\"Discovery<\/p>\n

Time- and angle-resolved photoemission spectroscopy of Floquet states in graphene. Credit: Nature Physics (2025). DOI: 10.1038\/s41567-025-02939-0<\/p>\n

Graphene is an extraordinary material\u2014a sheet of interlocking carbon atoms just one atom thick that is stable and extremely conductive. This makes it useful in a range of areas, such as flexible electronic displays, highly precise sensors, powerful batteries, and efficient solar cells.<\/p>\n

A new study\u2014led by researchers from the University of G\u00f6ttingen, working together with colleagues from Braunschweig and Bremen in Germany, and Fribourg in Switzerland\u2014now takes graphene’s potential to a whole new level. The team has directly observed “Floquet effects” in graphene for the first time.<\/p>\n

This resolves a long-standing debate: Floquet engineering\u2014a method in which the properties of a material are very precisely altered using pulses of light\u2014also works in metallic and semi-metallic quantum materials such as graphene. The study is published<\/a> in Nature Physics.<\/p>\n

The researchers used femtosecond momentum microscopy to experimentally investigate Floquet states in graphene. In this technique, the samples are first excited with rapid flashes of light and then examined with a delayed light pulse in order to track dynamic processes in the material.<\/p>\n

“Our measurements clearly prove that ‘Floquet effects’ occur in the photoemission spectrum of graphene<\/a>,” explains Dr. Marco Merboldt, physicist at the University of G\u00f6ttingen and first author of the study. “This makes it clear that Floquet engineering actually works in these systems\u2014and the potential of this discovery is huge.”<\/p>\n

The study shows that Floquet engineering works in many materials. This means the goal of designing quantum materials with specific properties\u2014and doing so with laser pulses<\/a> in an extremely short time\u2014is getting closer.<\/p>\n

Tailoring materials in this way for specific applications could form the basis for the electronics, computer, and sensor technology of the future. Professor Marcel Reutzel, who led the research in G\u00f6ttingen together with Professor Stefan Mathias, says, “Our results open up new ways of controlling electronic states in quantum materials with light. This could lead to technologies in which electrons are manipulated in a targeted and controlled manner.”<\/p>\n

Reutzel adds, “What is particularly exciting is that this also enables us to investigate topological properties. These are special, very stable properties which have great potential for developing reliable quantum computers or new sensors for the future.”<\/p>\n

More information:<\/strong>
\n\t\t\t\t\t\t\t\t\t\t\t\tMarco Merboldt et al, Observation of Floquet states in graphene, Nature Physics (2025). DOI: 10.1038\/s41567-025-02889-7<\/a>\n<\/p>\n

Julien Mad\u00e9o et al, Floquet states in graphene revealed at last, Nature Physics (2025). DOI: 10.1038\/s41567-025-02939-0<\/a><\/p>\n

\n\t\t\t\t\t\t\t\t\t\t\t\t\tProvided by
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tUniversity of G\u00f6ttingen<\/a>
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/p>\n

\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/p>\n

\n\t\t\t\t\t\t\t\t\t\t\t\tCitation<\/strong>:
\n\t\t\t\t\t\t\t\t\t\t\t\tFloquet effects unlock graphene’s potential for future electronics (2025, September 5)
\n\t\t\t\t\t\t\t\t\t\t\t\tretrieved 5 September 2025
\n\t\t\t\t\t\t\t\t\t\t\t\tfrom https:\/\/phys.org\/news\/2025-09-floquet-effects-graphene-potential-future.html\n\t\t\t\t\t\t\t\t\t\t\t <\/p>\n

\n\t\t\t\t\t\t\t\t\t\t\t This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
\n\t\t\t\t\t\t\t\t\t\t\t part may be reproduced without the written permission. The content is provided for information purposes only.\n\t\t\t\t\t\t\t\t\t\t\t <\/p>\n","protected":false},"excerpt":{"rendered":"Time- and angle-resolved photoemission spectroscopy of Floquet states in graphene. Credit: Nature Physics (2025). DOI: 10.1038\/s41567-025-02939-0 Graphene is…\n","protected":false},"author":2,"featured_media":401412,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3845],"tags":[75,76,74,71,70,72,53,73,16,15],"class_list":{"0":"post-401411","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-physics","8":"tag-materials","9":"tag-nanotech","10":"tag-physics","11":"tag-physics-news","12":"tag-science","13":"tag-science-news","14":"tag-technology","15":"tag-technology-news","16":"tag-uk","17":"tag-united-kingdom"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@uk\/115154749023984950","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/401411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/comments?post=401411"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/401411\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media\/401412"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media?parent=401411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/categories?post=401411"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/tags?post=401411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}