Seagate Technology Incorporated

Agere Systems Inc.

Carnegie Mellon University

Quantum Materials Design, Inc.

Timothy John Klemmer

Ganping Ju

Yingguo Peng

Jan-Ulrich Thiele

Yukiko A Kubota

Xiaobin Zhu

Yinfeng Ding

Kai Chieh Chang

Kangkang Wang

David S Kuo

Kai-Chieh Chang

Li Gao

Dieter Klaus Weller

Thomas P Nolan

Florin Zavaliche

Pin-Wei Huang

QiHong Wu

Chao Liu

Paul Max Jones

Fujian Huang

Michael Allen Seigler

Bin Lu

Julius Kurt Hohlfeld

Kaizhong Gao

Kim Yang Lee

Chubing Peng

Thomas Young Chang

Michael Joseph Stirniman

Joachim Walter Ahner

David Marcus Tung

Martin Giles Blaber

Amit Vasant Itagi

Xiaoding Ma

Huan H Tang

Yang Yang

Xi Chen

Philip L Steiner

Yiao-Tee Hsia

Ruoxi Yang

Zhaohui Fan

Michael Kevin Minor

Wei Peng

Nisha Shukla

XiaoPing Yan

Hongbo Wang

Emir R Kazazic

Kyoumarss Damavandi

Ashraf W Lotfi

Koichi R Wago

Xiaomin Yang

Werner Scholz

Robert Bruce Van Dover

Rene Johannes Marinus Van De Veerdonk

David Eugene Laughlin

Kalman Pelhos

Thomas Francis Ambrose

Earl Chrzaszcz Johns

Gregory John Parker

James Kent Howard

Emil John C Esmenda

Kenneth Alexander Ellis

Emil John Catoc Esmenda

KaiChieh Chang

Yinfeng Deng

Yinfong Ding

Hassib Amini

René Johannes Marinus Van De Veerdonk

Todd Dennis Leonhardt

Arthur J Freeman

A stack includes a substrate and a magnetic recording layer. Disposed between the substrate and magnetic recording layer is an MgO&#x2014;Ti(ON) layer.

Magnetic stack including MgO&#x2014;Ti(ON) interlayer

The embodiments disclose a stack feature of a stack configured to confine optical fields within and to a patterned plasmonic underlayer in the stack configured to guide light from a light source to regulate optical coupling.

Patterned plasmonic underlayer

A stack includes a heatsink layer, a magnetic recording layer disposed over the heatsink layer, and a Si-based overcoat layer disposed over the magnetic recording layer. The Si-based overcoat layer is substantially devoid of carbon.

Si-based overcoat for heat assisted magnetic recording media

An apparatus comprises a spindle to rotate a magnetic recording medium and a magnetic field generator to expose a track of the medium to a DC magnetic field. The magnetic field generator is configured to saturate the track during an erase mode and reverse the DC magnetic field impinging the track during a writing mode. A laser arrangement heats the track during the erase mode and, during the writing mode, heats the track while the track is exposed to the reversed DC magnetic field so as to write a magnetic pattern thereon. A reader reads the magnetic pattern and generates a read signal. A processor is coupled to the reader and configured to determine an anisotropy parameter using the read signal. The apparatus can further comprise a Kerr sensor that generates a Kerr signal using the magnetic pattern.

Heat-assisted rotating disk magnetometer for ultra-high anisotropy magnetic measurements

An apparatus including a heat sink layer and a magnetic recording layer over the heat sink layer. In addition, a thermochromic layer is over the heat sink layer, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.

Apparatuses and methods for absorbing optical energy

An apparatus is disclosed. The apparatus includes a storage layer, a thermal exchange control layer disposed over the storage layer, and a write layer disposed over the thermal exchange control layer. A Curie temperature of the thermal exchange control layer is lower than a Curie temperature of the storage layer. The Curie temperature of the thermal exchange control layer is lower than a Curie temperature of the write layer.

Heat assisted magnetic recording (HAMR) media with thermal exchange control layer of lower curie temperature

In some embodiments, a thermally assisted data recording medium has a recording layer formed of iron (Fe), platinum (Pt) and a transition metal T selected from a group consisting of Rhodium (Rh), Ruthenium (Ru), Osmium (Os) and Iridium (Ir) to substitute for a portion of the Pt content as FePtTwith Y in the range of from about 20 at % to about 80 at % and X in the range of from about 0 at % to about 20 at %.

Low power thermally assisted data recording media

A three dimensional magnetic recording media can consist of a coupling layer disposed between first and second vertically stacked recording layers. The coupling layer can provide exchange or antiferromagnetic coupling and allow the respective recording layers to be individually heat selected to different first and second coupling strengths through application of heat from a heat source.

Three dimensional data storage media

A stack includes a substrate, a magnetic recording layer comprising FePtX disposed over the substrate, and a capping layer disposed on the magnetic recording layer. The capping layer comprises Co; at least one rare earth element; one or more elements selected from a group consisting of Fe and Pt; and an amorphizing agent comprising one to three elements selected from a group consisting of B, Zr, Ta, Cr, Nb, W, V, and Mo.

Capping layer for magnetic recording stack

Provided herein is an apparatus including a substrate and a magnetic recording layer over the substrate. In addition, a thermochromic layer is over the substrate, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.

Magnetic stack including MgO-Ti(ON) interlayer

An apparatus comprises a spindle to rotate a magnetic recording medium and a magnetic field generator to expose a track of the medium to a DC magnetic field. The magnetic field generator is configured to saturate the track during an erase mode and reverse the DC magnetic field impinging the track during a writing mode. A laser arrangement heats the track during the erase mode and, during the writing mode, heats the track while the track is exposed to the reversed DC magnetic field so as to write a magnetic pattern thereon. A reader reads the magnetic pattern and generates a read signal. A processor is coupled to the reader and configured to measure one or more magnetic properties of the track using the read signal. The apparatus can further comprise a Kerr sensor that generates a Kerr signal using the magnetic pattern.

Growing community of inventors

Union City, CA, United States of America

Timothy John Klemmer