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

Phys · · 477 words · By RIKEN

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.

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

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

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6 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

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info Single Source 2
verified Verified By Reference 1
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“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.
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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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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
verified
“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.
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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
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“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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“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 — 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
info
“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.
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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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“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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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.