Anomalous Nernst effect in the ceramic and thin film samples of La0.7Sr0.3CoO3 perovskite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00541643" target="_blank" >RIV/68378271:_____/21:00541643 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388980:_____/21:00541650 RIV/00216208:11310/21:10427957

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevMaterials.5.035401" target="_blank" >https://doi.org/10.1103/PhysRevMaterials.5.035401</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevMaterials.5.035401" target="_blank" >10.1103/PhysRevMaterials.5.035401</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Anomalous Nernst effect in the ceramic and thin film samples of La0.7Sr0.3CoO3 perovskite

Popis výsledku v původním jazyce

We report the anomalous Nernst effect (ANE) in large-grain ceramics, nanogranular ceramics, and nanogranular thin films of La0.7Sr0.3CoO3, measured over the temperature range 5–300 K. The study is complemented with thermopower, resistivity, and magnetic measurements. The temperature-dependent ANE below the Curie temperature TC (240–250 K) is analyzed with the help of longitudinal resistivity and Seebeck using a previously proposed formula derived by a combination of Onsager reciprocity, the Mott formula, and the relation between transverse and longitudinal resistivity, ρxy∝ρnxx. We observe a characteristic exponent n ∼ 0.4 in agreement with the universal scaling for the bad-metal-type conduction regime. The nanogranular samples are characterized by higher resistivity, lower saturated magnetization, and a higher coercive field compared to large-grain ceramics.n

Název v anglickém jazyce

Anomalous Nernst effect in the ceramic and thin film samples of La0.7Sr0.3CoO3 perovskite

Popis výsledku anglicky

We report the anomalous Nernst effect (ANE) in large-grain ceramics, nanogranular ceramics, and nanogranular thin films of La0.7Sr0.3CoO3, measured over the temperature range 5–300 K. The study is complemented with thermopower, resistivity, and magnetic measurements. The temperature-dependent ANE below the Curie temperature TC (240–250 K) is analyzed with the help of longitudinal resistivity and Seebeck using a previously proposed formula derived by a combination of Onsager reciprocity, the Mott formula, and the relation between transverse and longitudinal resistivity, ρxy∝ρnxx. We observe a characteristic exponent n ∼ 0.4 in agreement with the universal scaling for the bad-metal-type conduction regime. The nanogranular samples are characterized by higher resistivity, lower saturated magnetization, and a higher coercive field compared to large-grain ceramics.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review Materials

ISSN

2475-9953

e-ISSN

2475-9953

Svazek periodika

5

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

035401

Kód UT WoS článku

000627661800002

EID výsledku v databázi Scopus

2-s2.0-85104281800