| Texto completo | |
| Autor(es): |
Coelho, L. C.
;
Oliveira, F. S.
;
dos Santos, C. A. M.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ENGINEERING RESEARCH EXPRESS; v. 7, n. 2, p. 11-pg., 2025-06-30. |
| Resumo | |
The influence of the electrical contact size and shape on the electrical resistivity measurements performed with Montgomery method is evaluated by the COMSOL Multiphysics software. Results obtained with point or small size contacts ( <= 1% of the sample length) reproduce the expected electrical resistivity value. The simulations are compared with previous literature and experimental data obtained from copper plates. Contacts of up to 10% of the sample length are excellent choices for electrical resistivity measurements using Montgomery method, as the standard deviations are less than 1%, no matter the contact shape. When larger electrical contacts are required, triangle and concave arch contact geometries yield the lowest error and standard deviation, while square and circle should be avoided. (AU) | |
| Processo FAPESP: | 21/03298-7 - Supercondutividade e magnetismo em superredes de Moiré à base de grafeno |
| Beneficiário: | Felipe Souza Oliveira |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 22/15559-2 - Simulação do Comportamento Elétrico de Condutores Anisotrópicos finos. |
| Beneficiário: | Larissa Comuni Coelho |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |