Thermal Hall conductivity and topological transition in a chiral                    <math>                      <mi>p</mi>                    </math>                    -wave superconductor for                    <math>                      <mrow>                        <msub>                          <mi>Sr</mi>                          <mn>2</mn>                        </msub>                        <msub>                          <mi>RuO</mi>                          <mn>4</mn>                        </msub>                      </mrow>                    </math>

Yoshiki Imai; Katsunori Wakabayashi; Manfred Sigrist

doi:10.1103/physrevb.93.024510

ジャーナル論文 Thermal Hall conductivity and topological transition in a chiral $p$ -wave superconductor for ${Sr}_{2} {RuO}_{4}$

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引用

Yoshiki Imai, Katsunori Wakabayashi, Manfred Sigrist. Thermal Hall conductivity and topological transition in a chiral

p

-wave superconductor for

{Sr}_{2} {RuO}_{4}

. Physical Review B. 2016, 93 (2), 024510. https://doi.org/10.1103/physrevb.93.024510

(BibTeX)

説明:

(abstract)

The interplay between thermal transport properties and topological aspects is investigated in a spin-triplet chiral p-wave superconductor Sr2RuO4 with strong two dimensionality. We show that thermal Hall conductivity is well described by a temperature linear term and an exponential term in the low-temperature region. While the former term is directly proportional to the so-called Chern number, the latter is associated with the superconducting gap amplitude of the γ band. We also demonstrate that the coefficient of the exponential term changes sign around the Lifshitz transition. Our obtained result may enable us to easily access the physical quantities and topological properties of Sr2RuO4 in detail.

権利情報:

http://arxiv.org/licenses/nonexclusive-distrib/1.0/

キーワード: Sr2RuO4, chiral p-wave superconductor, thermal Hall conductivity, topological superconductivity, Chern number, Lifshitz transition, Spin-triplet superconductivity

刊行年月日: 2016-01-13

出版者: American Physical Society (APS)

掲載誌:

Physical Review B (ISSN: 24699950) vol. 93 issue. 2 024510

研究助成金:

Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Ministry of Education, Culture, Sports, Science, and Technology

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI:

公開URL: https://doi.org/10.1103/physrevb.93.024510

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更新時刻: 2026-11-11 15:45:11 +0900

MDRでの公開時刻: 2026-11-11 16:25:07 +0900

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