O interface do usuário do material descreveu a entrada com o ícone

endAdornment = {
        <InputAdornment position="start">
          <AccountCircle />
        </InputAdornment>
}
// Or there can be a start Adornment, depending on your requirement
startAdornment = {
        <InputAdornment position="start">
          <AccountCircle />
        </InputAdornment>
}
// Dont forget to import the required MUI modules and icons from the pack
Asskicker