How to encode Ctrl characters in XML

I am trying to encode CTRL-C character in xml file but its not being recognized as an ctrl character instead as a string

<?xml version="1.1"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<property>
    <name>textinputformat.record.delimiter</name>
            <value>\u0003</value>
                      </property>
                          </configuration>

Anythign i am missing.