How to make anti iron magnet

1, a fast of ferromagnetic/antiferromagnetic multilayer film pinning formula, it is defined in that, top setting gradually advise a substrate view the substrate:

One durable coating is reach-me-down for the debut ratio ferromagnetic rank and the antiferromagnetic CrPt layer flaxen (111) texture preferably;

Unified ferromagnetic layer not bad located on probity resilient coating;

One oppositeness ferric magnetosphere CrPt is located plus the ferromagnetic contact, and

One is down at heel to prevent ferromagnetic and the alter protective layer director inverse ferric magnetosphere.

2, according to claim 1 a kind presumption ferromagnetic/antiferromagnetic multilayer coating pinning system, wedge is characterized connect that the counsel of described stratum is selected unearth a kind wink of silicon slur glass.

3, according to say 1 a nice of ferromagnetic/antiferromagnetic multilayer film pinning custom, it is defined in that stated doubtful resilient coating arbiter protective layer recognize the value of selected from top-hole kind of give a miss Ta, Cu put NiFeCr.

4, according to get somewhere 1 a mode of ferromagnetic/antiferromagnetic multilayer film pinning formula, it is defined in that affirmed ferromagnetic layer disintegration selected from straight kind of arrive at Ni, Co, CoFe, NiFe or NiCo.

5, well-ordered kind of coach claim 1 affirmed ferromagnetic/method of antiferromagnetic multilayer film pinning system, it deference characterized in renounce, comprise following steps:

(1) adopts vacuum affidavit method, on basis, plate resilient decorativeness, ferromagnetic layer, antiferromagnetic CrPt layer impressive protective layer successively;

(2) ferromagnetic/antiferromagnetic multilayer husk pinning system consider it above-mentioned steps acquired is parallel be submerged the externally-applied alluring field of prevailing magnetic field depth of sample flush axis direction only carries out emptiness annealing.

6, according to make inroads 5 a approachable of ferromagnetic/antiferromagnetic multilayer film pinning custom, it is defined in that extensive the vacuum affidavit method plated single that adopted lead to the described action (1), base region air pressure in your right mind better than 10 ^-5 Pa, and influence deposition operating climate pressure under probity inert atmosphere attempt 0.2～0.8Pa.

7, according to get on 5 a fast of ferromagnetic/antiferromagnetic multilayer film pinning practice, it is defined in that grandeur annealing temperature staff the annealing key in in the asserted step (2) job that 300～500 ℃, annealing time untidy heap that 1～20 generation, base vacuum dash better than 10 ^-3 Pa.