Magneto-optical and optical properties of Pt/Co GMR films with capping layer

Ishibashi, Takayuki; Naganuma, Masayuki; Tang, Sheng-Ming; Honma, Takayuki; Komatsu, Takayuki; Machida, Kenji; Furukawa, K; Aoshima, Ken-ichi; Funabashi, Nobuhiko; Kimura, Kiyoshi; Shimidzu, Naoki

doi:10.1088/1742-6596/303/1/012042

Cited by 6 publications

(8 citation statements)

References 7 publications

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“…Therefore, the MO effect of these devices has to be investigated to attain sufficient optical modulation. We have already reported that 3-nm-thick capping layers affect the MO spectra and optical properties of GMR structures 2) . This paper reports the analysis of optical constants and MO spectra of GMR structures with different capping materials.…”

Section: Introductionmentioning

confidence: 91%

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Magneto-optical Spectra of Pt/Co GMR Structures with Capping Layers

et al. 2012

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The MO spectra of GMR structures with capping layers, Si/SiO2/bottom electrode/TbFeCo (9 nm)/Cu (4 nm)/ Co (0.1 nm)/Pt (1.1 nm)/(Pt (1.1 nm)/Co (6 nm)!4)/cap (cap = Ta, Au, Pt (3 nm)), were studied. We found that the optical constants and Kerr spectra exhibited different behaviors for all samples. The differences in the optical constants of these samples were analyzed by means of optical simulation. The MO spectrum is discussed in terms of simulation carried out by the virtual optical constant method for (PtCo)/cap (cap = Ta, Au, Pt (3 nm)).

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Section: Introductionmentioning

confidence: 91%

“…n and extinction coefficients ! k , were measured by using an ellipsometer (Horiba Jobin Yvon: MM-16) with a wavelength between 430-700 nm, and these were analyzed by optical simulation using software (Horiba: Delta Psi 2) . The structure of a Si sub./SiO2/X/capping layer was assumed in order to simplify the optical analysis.…”

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confidence: 99%

Magneto-optical Spectra of Pt/Co GMR Structures with Capping Layers

et al. 2012

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“…Simulation through computer software is an useful way to study MO property of materials, but most simulations on MO property from the literatures [12,13] were performed on the deposited layers or thin films for MO sensing or modulation.…”

Section: Introductionmentioning

confidence: 99%

Faraday rotation influence factors in tellurite-based glass and fibers

Chen

Wang

et al. 2015

Appl. Phys. A

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The Faraday rotation influence factors in tellurite-based glass and fibers were studied by experiments and simulations. TeO 2 -ZnO-Na 2 O-BaO glass family was fabricated and characterized in terms of the thermal and magneto-optical properties. Two core-cladding pairs for two fibers were selected from fabricated glasses. The Verdet constants of the glasses and fibers were measured at different wavelengths using a homemade optical bench, and the Verdet constant of fiber was close to that of the bulk glass. The influence from external factors (wavelength, laser power and magnetic field) and internal factors (thermal expansion coefficient difference, refractive index and Verdet constant of core and cladding) on Faraday rotation in fibers was investigated and discussed, and the purpose of this study is to improve the Faraday rotation in tellurite fibers for MO device applications both from internal material property match and external parameter configuration in measurement.

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“…4 Recently, it has also been reported that the MO effect is enhanced in nanostructures consisting of MTMs and NMs due to localized surface plasmon resonance (LSPR). [5][6][7][8] In addition to a large MO effect, perpendicular magnetic anisotropy is a prerequisite for applications such as highdensity magnetic and MO recording media, 9 high-resolution MO SLMs, 10,11 and spin electronics devices. 12,13 Co-Pt alloys, multilayers, and nanostructures that exhibit a relatively large MO effect at shorter blue light wavelengths are potentially useful for these applications because of their large perpendicular magnetic anisotropy and good chemical stability.…”

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confidence: 99%