Abstract: In one embodiment, a multidentate perfluoropolyether (PFPE) lubricant has the formula Se-So-Si-SL-Si-So-Se, where each So includes at least one perfluoroethyl ether unit, SL is a linker segment, and each Se and Si include at least one functional group configured to attach to a surface. In another embodiment, a multi dentate PFPE lubricant has the formula Se-So(a)-Si-Sm-Si-So(b)-Se, where each So(a), So(b), and Sm include at least one perfluoroethyl ether unit with the proviso that Sm has a different number of perfluoroethyl ether units than at least one of So(a) and So(b), and each Se and Si include at least one functional group configured to attach to a surface.

Abstract: In one embodiment, a method includes forming a lubricant layer on an upper surface of a magnetic recording medium, the lubricant layer having a thickness greater than a dewetting thickness thereof, and polishing at least a portion of the upper surface of the magnetic recording medium using a polishing tape to remove any portion of the lubricant layer that extends above the dewetting thickness thereof, where, after the polishing, the resulting lubricant layer has a thickness about equal to the dewetting thickness thereof.

Abstract: According to one embodiment, a lubricant includes a multidentate perfluoropolyether having a chemical structure of: Re—Rz—Ri—Rz—Ri—Rz—Re, where Rz includes at least one perfluoroethyl ether unit, and where Re and Ri each include at least one functional group configured to attach to a surface. According to another embodiment, the aforementioned lubricant may be suitable for use in a sub-nanometer thick lubricant layer for various applications, and particularly useful for magnetic recording media.

Abstract: In one embodiment, a multidentate perfluoropolyether (PFPE) lubricant has the formula Se-So-Si-SL-Si-So-Se, where each So includes at least one perfluoroethyl ether unit, SL is a linker segment, and each Se and Si include at least one functional group configured to attach to a surface. In another embodiment, a multi dentate PFPE lubricant has the formula Se-So(a)-Si-Sm-Si-So(b)-Se, where each So(a), So(b), and Sm include at least one perfluoroethyl ether unit with the proviso that Sm has a different number of perfluoroethyl ether units than at least one of So(a) and So(b), and each Se and Si include at least one functional group configured to attach to a surface.

Abstract: A method for polishing a carbon overcoat of a magnetic media that results in a smooth surface free of carbon cluster debris. The method involves forming a magnetic disk having a carbon overcoat formed thereon. The carbon overcoat is then polished in the presence of ozone (O3). The heat from the polishing process along with the presence of the ozone, cause any carbon particles removed by the polishing to form CO2 gas so that there is no remaining carbon particle debris on the surface of the disk.

Abstract: According to one embodiment, a lubricant includes a multidentate perfluoropolyether having a chemical structure of: Re—Rz—Ri—Rz—Ri—Rz—Re, where Rz includes at least one perfluoroethyl ether unit, and where Re and Ri each include at least one functional group configured to attach to a surface.

Abstract: A method for polishing a carbon overcoat of a magnetic media that results in a smooth surface free of carbon cluster debris. The method involves forming a magnetic disk having a carbon overcoat formed thereon. The carbon overcoat is then polished in the presence of ozone (O3). The heat from the polishing process along with the presence of the ozone, cause any carbon particles removed by the polishing to form CO2 gas so that there is no remaining carbon particle debris on the surface of the disk.