The present invention provides a thin film magnetic head in which a magnetic domain structure of a magnetic pole layer is controlled and fluctuation in recording magnetization caused by leaked magnetic flux generated by unintentional shift of a magnetic domain wall can be prevented. The organoborate additive can be present in a concentration less than 0. The first calculator may calculate a first transformation matrix by performing a regression analysis for the plurality of training data. During the call, an indication is received from the calling phone to jump the call to a user selected destination.