Field template for display mode
For the field template there is by default no suggestion with the specific display mode. 

You can add this suggestion in a hook:

function MYTHEME_theme_suggestions_field_alter(&amp;$suggestions, $variables) {
  $suggestions[] = 'field__' . 
    $variables['element']['#field_name'] . '__' . 
    $variables['element']['#view_mode'];
}


Put this into MYTHEME.theme in the theme directory.