Untitled

Temperature dependence of the electrical resistivity and the anisotropic magnetoresistance (AMR) of electrodeposited Ni-Co alloys

“…Namely, there is a strong correlation between the GMR magnitude of a FM/NM multilayer and the AMR magnitude of the FM layer material as it will appear from the following observations. With reference to the original note by Snoek [20], it was demonstrated for FM metals and alloys [21][22][23] that the AMR magnitude exhibits a fairly pronounced maximum as a function of the magnetic moment of the FM material, the maximum being at around 1  B . On the other hand, the GMR magnitude was found [24] to show a maximum as a function of the electron/atom (e/a) number for FM/Cu multilayers where the FM layer is an alloy in the Fe-Co-Ni system; large GMR was observed at e/a values corresponding to alloys with a magnetic moment of about 1  B as deduced from the well-known Slater-Pauling curves [5].…”

Band-Edge Noise Spectroscopy of a Magnetic Tunnel Junction

“…Tunneling magnetoresistance [10][11][12] is extremely sensitive to the band structures of ferromagnet/insulator (FM/I) interfaces 3,[13][14][15][16][17][18][19][20] . Despite recent attempts to understand the nature of the electron bands which contribute to electron transport in spintronic devices [21][22][23] , the issue remains unsettled.…”

Synthesis of side‐chain liquid‐crystalline polysalts with a poly(methylsiloxane) backbone

“…Materials and solvents p-Toluenesulfonic acid monohydrate (Aldrich), sodium hydride (97%, Aldrich), 5-hexen-1-01 (Aldrich), poly(hydrogenmethylsi1oxane) (Merck, degree of polymerization DP = 35, numberaverage molecular weight M,, = 2260), platinum divinyltetramethyldisiloxane (Petrarch), Pd/Ccatalyst (Aldrich, 5 C7o Pd), methanesulfonyl chloride (Aldrich), 4-(hydroxymethyl)pyridine (Aldrich), sodium hydride (97%, Aldrich), 4,Aldrich), dimethyl sulfate (98%, Aldrich), 1,8-dibromooctane (98 ' 4' 0,Aldrich), 1,12-dibromododecane (98%, Aldrich), tosyl chloride (Aldrich), S-2-methyl-1 -butan01 (95%, Aldrich) and pyridine (Merck) were used as received. Toluene, tetrahydrofuran (THF), 1 ,4-dioxane were distilled under nitrogen from sodium/benzophenone.…”

“…H NMR (CDCI,, ref. : TMS): 6 = 0,00-0,22 (s; 3, CI-I,-Si-), 0,40-0,71 (s; 2, -Si-c&-), 1,18-1,49 (s; 6, -Si-CH2-(C143,-CHz-CHz-O-), 1,49-1,78 (s; 2, -Si-CH2-(CH2),-CH2-CH2-O-), 3,41-337 (t; 2, -Si-CH2-(CH2)3-CH2-C~z-O-),4,2,C,N), 7,30 and 8,62 (dd;4,C,N).…”