Abstract: A compound is disclosed that has a metal coordination complex structure having at least two ligands coordinated to the metal; wherein the compound has a first substituent R1 at one of the ligands' periphery; wherein a first distance is defined as the distance between the metal and one of the atoms in R1 where that atom is the farthest away from the metal among the atoms in R1; wherein the first distance is also longer than any other atom-to-metal distance between the metal and any other atoms in the compound; and wherein when a sphere having a radius r is defined whose center is at the metal and the radius r is the smallest radius that will allow the sphere to enclose all atoms in the compound that are not part of R1, the first distance is longer than the radius r by at least 2.9 ?.

Abstract: A data storage device is disclosed comprising a non-volatile storage medium (NVSM), and control circuitry configured to receive a plurality of access commands, process the plurality of access commands using a customer prediction model to predict a customer of the data storage device, wherein the customer prediction model is trained off-line based on access patterns of a plurality of different customers. The control circuitry then configures access to the NVSM based on the predicted customer.

Abstract: A data storage device is disclosed comprising a non-volatile storage medium (NVSM), and control circuitry configured to receive a plurality of access commands, process the plurality of access commands using a customer prediction model to predict a customer of the data storage device, wherein the customer prediction model is trained off-line based on access patterns of a plurality of different customers. The control circuitry then configures access to the NVSM based on the predicted customer.

Abstract: A data storage device is disclosed comprising a first head actuated over a first disk surface, and a second head actuated over a second disk surface. During a first revolution of the disk surfaces, a first set of servo sectors are written to the first disk surface and a second set of servo sectors are written to the second disk surface, wherein the first set of servo sectors are circumferentially offset from the second set of servo sectors. During a second revolution of the disk surfaces, at least one of the servo sectors in the first set is read from the first disk surface and at least one of the servo sectors in the second set is read from the second disk surface to control a position of the first head over the first disk surface.