Unusual nonlinear thermoelectric effect appears in chiral tellurium, confirming theoretical predictions

Phys · May 21, 2026 · 477 words · By RIKEN

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What to know about Unusual nonlinear thermoelectric effect appears in chiral tellurium, confirming theoretical predictions

Physicists at the RIKEN Center for Emergent Matter Science have experimentally observed a nonlinear chiral thermoelectric effect in semiconductor tellurium. The findings, published in Nature Physics, confirm previous theoretical predictions and may have future applications in energy harvesting and material research.

Propaganda risk 0%

Claims checked 6

Techniques found 0

Topics 0

Coverage spectrum

Coverage gap: Low Left coverage

Left0%

Center80%

Right20%

5 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Unusual nonlinear thermoelectric effect appears in chiral tellurium, confirming theoretical predictions Sadie Harley Scientific Editor Robert Egan Associate Editor An unusual thermoelectric effect has been observed in the semiconductor tellurium by RIKEN…

Why it matters

This demonstration points to the potential of similar materials to be used in applications such as energy harvesting and advanced heat management.

Common ground

Thermoelectric materials can convert electricity into heat and vice versa.

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

Follow-up questions

What concrete event or decision sits underneath the headline: Unusual nonlinear thermoelectric effect appears in chiral tellurium, confirming theoretical predictions?
What evidence would most clearly confirm or weaken the claim that The team was surprised at how large the effect was—of the order of microvolts?
What should readers watch for in the next update to know whether the story is changing?

open_in_new Read the original article: https://phys.org/news/2026-05-unusual-nonlinear-thermoelectric-effect-chiral.htm…

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Propaganda Score

confidence: 100%

Low risk. This article shows minimal use of propaganda techniques.

fact_checkClaims Checked

eFinder analyzed this article and checked 6 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

check_circle Corroborated 3

info Single Source 2

verified Verified By Reference 1

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Claim 1: “The team was surprised at how large the effect was—of the order of microvolts.”

SINGLE SOURCE

While the effect is confirmed in the evidence, the specific detail regarding the 'surprise' of the team and the specific magnitude of 'microvolts' is not explicitly detailed in the provided snippets, though the effect's existence is noted.

travel_explore

web search NEUTRAL — Tellurium is a chemical element; it has the symbol Te and atomic number 52. It is a brittle, mildly toxic, rare, silver-white metalloid. Tellurium is chemically related to selenium and sulfur, all thr…
https://en.wikipedia.org/wiki/Tellurium

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web search NEUTRAL — Here, we report the observation of the nonlinear chiral thermoelectric Hall effect in chiral tellurium at room temperature, where a voltage is generated as a cross product of the temperature gradient …
https://arxiv.org/abs/2503.08058

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web search NEUTRAL — Volumetric Determination of Tellurium in Commercial Metallic Tellurium and Tellurium-enriched Materi... Removal of Tellurium out of Molten Iron. Applications of the Reorientation Effect of Coulomb Exc…
https://www.ablesci.com/assist/detail?id=j7VYLW

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Claim 2: “Tetsuya Nomoto et al, Observation of the nonlinear chiral thermoelectric Hall effect in tellurium, Nature Physics (2025). DOI: 10.1038/s41567-025-03073-7”

CORROBORATED

The existence of the paper 'Observation of the nonlinear chiral thermoelectric Hall effect in tellurium' and its association with Nature Physics is confirmed across multiple web search results and the arXiv preprint.

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wikipedia NEUTRAL — A number of significant scientific events occurred in 2020.
https://en.wikipedia.org/wiki/2020_in_science

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https://en.wikipedia.org/wiki/Paper

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+ 1 more evidence source

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Claim 3: “An unusual thermoelectric effect has been observed in the semiconductor tellurium by RIKEN physicists for the first time.”

CORROBORATED

Multiple web search results confirm the observation of a nonlinear thermoelectric/Hall effect in semiconductor tellurium, specifically mentioning the research team's discovery.

travel_explore

web search NEUTRAL — The nonlinear thermoelectric effect lies at the basis for certain thermoelectric phenomena, such as heat rectification and power generation using thermal fluctuations.
https://www.nature.com/articles/s41567-025-03073-7?error=coo…

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web search NEUTRAL — A research team has discovered significant nonlinear Hall and wireless rectification effects at room temperature in elemental semiconductor tellurium (Te).
https://phys.org/news/2024-09-tunable-nonlinear-hall-effect-…

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Claim 4: “Specifically, they showed that creating a temperature difference across the semiconductor tellurium and applying an electric field at right angles to it generates a voltage in the third perpendicular direction.”

CORROBORATED

The evidence from the arXiv/Nature Physics results explicitly states that a voltage is generated as a cross product of the temperature gradient and electric field in chiral tellurium.

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https://www.indeed.com/career-advice/finding-a-job/applying-…

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web search NEUTRAL — USAJOBS is the Federal Government's official one-stop source for Federal jobs and employment information.
https://www.usajobs.gov/

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web search NEUTRAL — APPLYING definition: 1. present participle of apply 2. to request something, usually officially, especially in writing…. Learn more.
https://dictionary.cambridge.org/dictionary/english/applying

verified

Claim 5: “Thermoelectric materials can convert electricity into heat and vice versa.”

VERIFIED BY REFERENCE

The fundamental nature of thermoelectric materials (converting temperature differences to voltage and vice versa) is confirmed by Wikipedia, Britannica, and Nature.

travel_explore

web search NEUTRAL — The thermoelectric effect is the direct conversion of temperature differences to electric voltage and vice versa via a thermocouple. [1][2] A thermoelectric device creates a voltage when there is a di…
https://en.wikipedia.org/wiki/Thermoelectric_effect

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web search NEUTRAL — Thermoelectrics are materials that can generate electricity from the application of a temperature gradient, or vice versa, through the thermoelectric effect.
https://www.nature.com/subjects/thermoelectrics

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web search NEUTRAL — Mar 16, 2026 · thermoelectricity, direct conversion of heat into electricity or electricity into heat through two related mechanisms, the Seebeck effect and the Peltier effect. When two metals are pla…
https://www.britannica.com/science/thermoelectricity

info

Claim 6: “In a study published in the journal Nature Physics, Tetsuya Nomoto, Fumitaka Kagawa and their co-workers, all at the RIKEN Center for Emergent Matter Science, have now experimentally confirmed these theoretical predictions.”

SINGLE SOURCE

The provided evidence for this specific claim consists of irrelevant adult content search results and does not mention Tetsuya Nomoto, Fumitaka Kagawa, or the Nature Physics study.

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info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.