\begin
Discover why 18 million people worldwide trust Overleaf with their work.
\documentclass[a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}%\usepackage[latin1]{inputenc}
\DeclareUnicodeCharacter{0301}{\'{e}}
\usepackage[brazilian]{babel}
\usepackage{graphicx}
\usepackage{hyperref}
\hypersetup{
setpagesize = false,
colorlinks = true, % Colours links instead of ugly boxes
urlcolor = blue, % Colour for external hyperlinks
linkcolor = black, % Colour of internal links
citecolor = black % Colour of citations
}
\urlstyle{same}
\usepackage{authblk}
\usepackage{geometry}
\usepackage{setspace}
\usepackage{verbatim}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{gensymb}
\usepackage{verbatim} % env for block comment
\usepackage{ragged2e} % para usar flusleft
\usepackage[brazilian]{babel}
\usepackage{minted}
\usemintedstyle{tango}
\usepackage{amsfonts}
\usepackage{cancel}
\usepackage[sorting=none]{biblatex}
\addbibresource{referencias.bib}
\setcounter{page}{1} % página inicial do artigo
%==========================================================================
% Margens e tamanho da página
%==========================================================================
\setlength{\paperwidth}{19cm}\setlength{\paperheight}{29cm}
\setlength{\textwidth}{16cm}\setlength{\textheight}{23cm}
\setlength{\oddsidemargin}{2cm}
\setlength{\headheight}{\baselineskip}
\setlength{\topmargin}{3cm}
%\setlength{\headsep}{2cm}\addtolength{\headsep}{-\headheight}
\setlength{\footskip}{2cm}\addtolength{\footskip}{.5\baselineskip}
\addtolength{\topmargin}{-1in}
\addtolength{\oddsidemargin}{-1in}
\setlength{\evensidemargin}{\oddsidemargin}
%==========================================================================
% Definições diversas
%==========================================================================
\setlength{\parindent}{1cm}
\newcommand{\abstractinenglishname}{Abstract}
\newcommand{\keywordsportugues}{Palavras-chave}
\newcommand{\keywordsenglishname}{Keywords}
%==========================================================================
% Resumo (abstract) e Abstract (englishabstract)
%==========================================================================
\renewenvironment{abstract}{%
\begin{center}
\begin{minipage}{14cm}
{\textbf{\abstractname:}}
}{
\end{minipage}
\end{center}
}
\newenvironment{abstractinenglish}{
\def\abstractname{\abstractinenglishname}
\begin{abstract}
}{
\end{abstract}
}
%==========================================================================
% Palavras-chave (keywords) e Keywords (keywordsenglish)
%==========================================================================
\newenvironment{keywords}{
\def\abstractname{\emph{\keywordsportugues}}
\begin{abstract}
}{
\end{abstract}
}
\newenvironment{keywordsenglish}{
\def\abstractname{\emph{\keywordsenglishname}}
\begin{abstract}
}{
\end{abstract}
}
%==========================================================================
% Artigo
%==========================================================================
\title {Título do resumo simples}
\author{Nome do Autor \href{https://orcid.org/0000-0000-0000-0000}{\includegraphics[scale=0.04]{orcidicon.eps}} \thanks{Endereço de correspondência: emaildoautor@email.com} $^1$ }
\affil{$^1$Nome da instituição ao qual está filiado, Cidade, UF, País.}
\date{}
\usepackage{fancyhdr}
\fancyhf{}
%==========================================================================
% Não editar o cabeçalho
%==========================================================================
\fancyhead[L]{\small Revista Brasileira de Física, Vol. x, Nº x, xxxxx \newline www.revistabrasileiradefisica.com | DOI: https://doi.org/xxxxx \newline Licença Creative Commons CC BY-ND 4.0}
%==========================================================================
% Não editar o cabeçalho
%==========================================================================
\fancyhead[R]{\thepage}
\pagestyle{fancy}
\begin{document}
\maketitle
\vspace{6pt}
\begin{abstract}
Texto do resumo. Até 2 páginas. Até 2 autores. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis ut elementum libero, tincidunt pellentesque quam. Cras id vulputate diam. Curabitur metus lorem, feugiat vel ipsum vulputate, mattis mollis lacus. Duis lectus velit, dignissim et neque ac, venenatis mattis quam. Duis commodo vestibulum sapien at volutpat. Phasellus pretium ipsum magna, porta mollis metus venenatis eu. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Nulla facilisis arcu nibh, viverra blandit tellus feugiat a. Proin porttitor ex vel dolor vestibulum varius ut ut ante.
\end{abstract}
\begin{keywords}
palavras;chave;português
\end{keywords}
\vspace{6pt}
\end{document}