2015
DOI: 10.1063/1.4906324
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FePtC magnetic recording media with (200) textured MoC intermediate layer

Abstract: The FePt films with thickness of 4–10 nm were deposited on MoC/CrRu/glass at 425 °C by using magnetron sputtering. The Mo40C60 target was used to form the MoC and C two phases after deposition. The MoC intermediate layer was epitaxially grown on the (200) textured CrRu seed layer at 425 °C and the MoC (200) diffraction peak was not clearly indexed below 10 nm but observed at 25 nm. Finally, the FePt film was prepared on (200) textured MoC at 425 °C and shown the strong (001) texture. Perpendicular anisotropy o… Show more

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Cited by 6 publications
(4 citation statements)
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“…2(c) and (d). The out-of-plane H c of 10 nm FePt film was 7.5 kOe without a C capping layer [8]. The increased H c was due to the diffused C from a capping layer and partially separated the FePt grains.…”
Section: Resultsmentioning
confidence: 98%
See 1 more Smart Citation
“…2(c) and (d). The out-of-plane H c of 10 nm FePt film was 7.5 kOe without a C capping layer [8]. The increased H c was due to the diffused C from a capping layer and partially separated the FePt grains.…”
Section: Resultsmentioning
confidence: 98%
“…The big grains appeared in plane-view TEM images were due to overgrowth of FePt grains after postannealing or two layers structures. The study of reference samples with no carbon cap layer was published in [8]. Fig.…”
Section: Resultsmentioning
confidence: 99%
“…For FePt or CoPt L1 0 -alloys, people usually use single crystal substrates, such as MgO or introduce an additional underlayer, such as Ag and Cr, to induce the phase transformation from fcc to fct and to obtain (001) orientation with the help of a small lattice mismatch between FePt¯lms and substrates/underlayers. [16][17][18][19][20][21][22][23][24][25][26][27][28][29] Farrow et al¯rst realized the control of chemical ordering and magnetic anisotropy in epitaxial FePt lms prepared on Pt/MgO (001) substrates. 16 Figure 2 shows the specular X-ray di®raction (XRD) patterns for FePt¯lms grown at di®erent temperatures.…”
Section: 1mentioning
confidence: 99%
“…24 Based on the success of Cr (100) underlayer, Wang et al prepared the ordered FePt thin¯lms with fct (001) texture on Cr 100Àx Ru x composite underlayer. 25 Addition of Ru in Cr underlayer results in the formation of the FePt ordered phase with c-axis orientation perpendicular to the¯lm plane at a lower substrate temperature of 350 C. Figure 5 shows the out-of-plane and in-plane hysteresis loops of Cr 91 Ru 9 /Pt/FePt¯lm deposited at 400 C. 25 27 Other than these approaches, Bi, 28 PtMn, 29 and AuCu 30 underlayers were all used to induce the phase transformation and reduce the ordering temperature of L1 0 -Fe(Co)Pt alloys. However, Hotta et al recently con¯rmed that there is no marked di®erence in the thickness dependence of K u in L1 0 -FePt (001) single-crystal¯lms grown epitaxially on di®erent substrates, although the lattice mismatch between FePt and the substrates is markedly di®erent (from 1.4% to 9.1%).…”
Section: 1mentioning
confidence: 99%