A multilayer exchange spring recording media consist of a magnetically hard magnetic storage layer strongly exchange coupled to a softer nucleation host. The strong exchange coupling can be through a coupling layer or direct. The hard magnetic storage layer has a strong perpendicular anisotropy. The nucleation host consists of one or more ferromagnetic coupled layers. For a multilayer nucleation host the anisotropy increases from layer to layer. The anisotropy in the softest layer of the nucleation host can be two times smaller than that of the hard magnetic storage layer. The lateral exchange between the grains is small. The nucleation host decreases the coercive field significantly while keeping the energy barrier of the hard layer almost unchanged. The coercive field of the total structure depends on one over number of layers in the nucleation host. The invention proposes a recording media that overcomes the writeability problem of perpendicular recording media.

An apparatus includes a substrate, a plurality of layers overlying the substrate, a hexagonal close packed (hcp) translating layer, and an hcp layer overlying the hcp translating layer. A top layer of the multiple layers has a face centered cube (fcc) lattice structure. The hcp translating layer overlies the top layer. The hcp translating layer interfaces between the top layer and the hcp layer, and columnar structure of the top layer aligns with the hcp layer through the hcp translating layer.

A perpendicular recording medium with enhanced magnetic stability. In accordance with some embodiments, a multi-layer recording structure is formed on a base substrate and adapted to magnetically store a magnetic bit sequence in domains substantially perpendicular to said layers. A thin magnetic stabilization layer is formed on the multi-layer recording substrate to magnetically stabilize an upper portion of the recording structure.

Provided herein is an apparatus including a top continuous layer and a bottom continuous layer under the top continuous layer. The top continuous layer and the bottom continuous layer are antiferromagnetically coupled. A number of granular columns are under the bottom continuous layer. The number of granular columns include at least a first granular layer under the bottom continuous layer and a second granular layer also under the first granular layer. The first granular layer and the second granular layer are separated by a non-magnetic spacer. The first granular layer and the second granular layer are ferromagnetically coupled. The first granular layer is antiferromagnetically coupled to the bottom continuous layer.

A multilayer exchange spring recording media consists of a magnetically hard magnetic storage layer strongly exchange coupled to a softer nucleation host. The strong exchange coupling can be through a coupling layer or direct. The hard magnetic storage layer has a strong perpendicular anisotropy. The nucleation host consists of one or more ferromagnetic coupled layers. For a multilayer nucleation host the anisotropy increases from layer to layer. The anisotropy in the softest layer of the nucleation host can be two times smaller than that of the hard magnetic storage layer. The lateral exchange between the grains is small. The nucleation host decreases the coercive field significantly while keeping the energy barrier of the hard layer almost unchanged. The coercive field of the total structure depends on one over number of layers in the nucleation host. The invention proposes a recording media that overcomes the writeability problem of perpendicular recording media.

A magnetic recording medium has a recording surface having an average surface roughness SRa of 3.0 ?m or less, the number of projections having a height of 7.5 nm or more included in a unit region (where the unit region is a square region with each side having a length of 30 ?m) of the recording surface is 256 or more, and the number of projections having a height of 15 nm or more included in the unit region of the recording surface is 0 or more and 104 or less.

The present invention is an applications gateway that offers multiple functions and features for specific geographic venue locations, while providing easy access to advertising, purchasing, and redemption opportunities for that specific geographic venue location. Venue locations can be stadiums, shopping malls, amusement parks, open air spaces where people can congregate, and/or buildings, which most often require the presence of a concentration of people. The venue location may correlate to the location of the hand-held mobile unit or it may be a remote geographic venue location not near the location of the hand-held mobile unit. Access to the gateway application is through a hand-held mobile unit, which can include a mobile phone, smartphone device, or portable computer having a wireless radio transmission connection. (e.g. iPhone, Droid, iPad, Slate, etc.)

A multilayer exchange spring recording media consists of a magnetically hard magnetic storage layer strongly exchange coupled to a softer nucleation host. The strong exchange coupling can be through a coupling layer or direct. The hard magnetic storage layer has a strong perpendicular anisotropy. The nucleation host consists of one or more ferromagnetic coupled layers. For a multilayer nucleation host the anisotropy increases from layer to layer. The anisotropy in the softest layer of the nucleation host can be two times smaller than that of the hard magnetic storage layer. The lateral exchange between the grains is small. The nucleation host decreases the coercive field significantly while keeping the energy barrier of the hard layer almost unchanged. The coercive field of the total structure depends on one over number of layers in the nucleation host. The invention proposes a recording media that overcomes the writeability problem of perpendicular recording media.

The present invention is an applications gateway that offers multiple functions and features for specific geographic venue locations, while providing easy access to advertising, purchasing, and redemption opportunities for that specific geographic venue location. Venue locations can be stadiums, shopping malls, amusement parks, open air spaces where people can congregate, and/or buildings, which most often require the presence of a concentration of people. The venue location may correlate to the location of the hand-held mobile unit or it may be a remote geographic venue location not near the location of the hand-held mobile unit. Access to the gateway application is through a hand-held mobile unit, which can include a mobile phone, smartphone device, or portable computer having a wireless radio transmission connection. (e.g. iPhone, Droid, iPad, Slate, etc.)

The present invention is an applications gateway that offers multiple functions and features for specific geographic venue locations, while providing easy access to advertising, purchasing, and redemption opportunities for that specific geographic venue location. Venue locations can be stadiums, shopping malls, amusement parks, open air spaces where people can congregate, and/or buildings, which most often require the presence of a concentration of people. The venue location may correlate to the location of the hand-held mobile unit or it may be a remote geographic venue location not near the location of the hand-held mobile unit. Access to the gateway application is through a hand-held mobile unit, which can include a mobile phone, smartphone device, or portable computer having a wireless radio transmission connection. (e.g. iPhone, Droid, iPad, Slate, etc.)