forceCreateRecordController.js

({
 onCreate: function (component) {
        var newCreateRecordEvent = $A.get('e.force:createRecord');
        if ( newCreateRecordEvent ) {
            newCreateRecordEvent.setParams({
                'entityApiName': 'SimplusLab__c',
                'defaultFieldValues': {
                    'CEO__c' : 'Nigam'
                   
                }
            });
            newCreateRecordEvent.fire();
        } else {
           
            alert(" Not Supported ");
        }
    }
})