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US 11,107,496 B2Granted
Near field transducers including platinum group alloys
AssigneeSeagate Technology LLC
InventorsTong Zhao, Martin Blaber, Li Wan
Life of this patent
Estimating the term…
Abstract
Heat assisted magnetic recording (HAMR) devices that includes a near field transducer, the near field transducer including alloys of a first element selected from: platinum (Pt), palladium (Pd), rhodium (Rh), iridium (Ir), ruthenium (Ru), and osmium (Os); and a second element selected from; hafnium (Hf), niobium (Nb), tantalum (Ta), titanium (Ti), vanadium (V), and zirconium (Zr).
Claims16
A heat assisted magnetic recording (HAMR) device comprising:
- a near field transducer, the near field transducer comprising alloys comprising
- a first element selected from:
- platinum (Pt), palladium (Pd), rhodium (Rh), iridium (Ir), ruthenium (Ru), and osmium (Os);
- and
- not greater than 6 atomic percent (at %) of a second element selected from:
- hafnium (Hf), niobium (Nb), tantalum (Ta), titanium (Ti), vanadium (V), and zirconium (Zr).
3 more elements
A device comprising:
- a light source;
- a waveguide;
- and
- a near field transducer, the near field transducer comprising alloys comprising
- a first element selected from:
- platinum (Pt), palladium (Pd), rhodium (Rh), iridium (Ir), ruthenium (Ru), and osmium (Os);
- and
- not greater than 6 atomic percent (at %) of a second element selected from:
- hafnium (Hf), niobium (Nb), tantalum (Ta), titanium (Ti), vanadium (V), and zirconium (Zr),
- wherein the light source, waveguide and near field transducer are configured to transmit light from the light source to the waveguide and finally the near field transducer.
7 more elements
A system comprising:
- a light source;
- a near field transducer, the near field transducer comprising alloys comprising
- a first element selected from:
- platinum (Pt), palladium (Pd), rhodium (Rh), iridium (Ir), ruthenium (Ru), and osmium (Os);
- and
- not greater than 6 atomic percent (at %) of a second element selected from:
- hafnium (Hf), niobium (Nb), tantalum (Ta), titanium (Ti), vanadium (V), and zirconium (Zr);
- a magnetic reader;
- and
- a magnetic writer,
- wherein the light source and the near field transducer are configured to transmit light from the light source to the near field transducer in order to assist the magnetic writer with writing.
8 more elements
Dependencies are inferred from the claim text.