// We have to set up controllers ahead of time.
myApp.controller('AfterCtrl',function($scope)  {
  $scope.loaded = 'Is now loaded';
});

//loads html and afterwards creates a controller
$('button').on('click',function() {
  $.get('ajax.html',function(data) {

    // Get the $compile service from the app's injector
    var injector = $('[ng-app]').injector();
    var $compile = injector.get('$compile');

    // Compile the HTML into a linking function...
    var linkFn = $compile(data);
    // ...and link it to the scope we're interested in.
    // Here we'll use the $rootScope.
    var $rootScope = injector.get('$rootScope');
    var elem = linkFn($rootScope);
    $('.content').append(elem);

    // Now that the content has been compiled,linked,// and added to the DOM,we must trigger a digest cycle
    // on the scope we used in order to update bindings.
    $rootScope.$digest();

  },'html');
});