Magnetic recording medium

Abstract

A main object of the present technology is to improve reliability and resolution of a magnetic recording tape by controlling distribution of the binder in the underlayer and a magnetic surface. The present technology provides a magnetic recording medium including: a magnetic layer; an underlayer; and a base layer in this order, in which the underlayer contains a chlorine-containing binder, and in the underlayer, a part having a chlorine count equal to or more than a threshold described below has a thickness of 130 nm or less, and a core portion level difference Rk is 5.5 nm or less and an average thickness of the underlayer is 1100 nm or less in a bearing curve created on the basis of height data of a magnetic layer side surface acquired using an atomic force microscope. [Threshold]=[an average chlorine count in the underlayer]+6×[a standard deviation determined in calculation of the average chlorine count].

Dependencies are inferred from the claim text.