Cannot pass search term as parameter

I want to display some data in a dropdown list and implement autocomplete. To do this, I use select2a jQuery plugin. My problem is that the search term written in the search box is not being passed as a parameter to my method in the controller. Here is my ajax request:

$('#someId').select2({
        minimumInputLength: 1,
        allowClear: true,

        ajax: {
            url: "/controllerName/methodName",
            dataType: "json",
            type: "GET",
            data: function (params) {

                var queryParameters = {
                    term: params.term

                }
                return queryParameters;

            },

            processResults: function (data) {
                return {
                    results: $.map(data, function (students) {
                        return {
                            text: students.name,
                            id: students.id
                        }
                    })
                };
            }
        }
    });

Here is the html:

<div class="form-group">
<label asp-for="someId" class="col-md-2 control-label"></label>
 <div class="col-md-4">
<select asp-for="someId"  class="form-control" style="display:table-cell; 
 width:100%"></select>
 </div>
 </div>

This is my method in the controller:

[HttpGet]
        public IActionResult GetStudents(string searchTerm)
    {
        //some code
    }

Is there something wrong with my Ajax request?