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Graphene oxide/sulphur compound was synthesized by Hammers method. The chemical composition, presence/quantity of functional groups, exfoliation level, number of layers, crystallite size of graphene oxide/sulphur were characterized by X-ray diffraction, Raman spectroscopy, and scanning electron microscopy images. The current-voltage characteristics of the samples were measured in air at room temperature. In the I - V characteristic curve of graphene oxide/sulphur compound with the ratio of oxygen to carbon of 3.54 and that to sulphur of 42.54, negative differential resistance was observed. The negative differential resistance is attributed to current carrier transitions between the localized states formed by functional groups.

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The inverse relaxation time tensor in quasi-two-dimensional systems is calculated for elastic electron scattering by both acoustic and optical phonons. It is shown that in the general case the relaxation time is anisotropic. Also, on the basis of the Boltzmann equation in the anisotropic relaxation time approximation the electrical conductivity in these systems is calculated. It is found that anisotropy of the conductivity is defined not only by the anisotropy of effective mass and the relaxation time but also by the ratio of the Fermi level to the one-dimensional conduction band half-width. A comparison with available experimental data has been carried out. Qualitative agreement of theory with experiment was obtained.

Thermomagnetic effects of thin film in a magnetic field normal to the film surface are studied for an arbitrary value of specularity parameter p. Using the solution of the Boltemann equation for an arbitrary film thickness and magnetic field strength the basic thermomagnetic coefficients are calculated, the Nernst-Ettingshausen coefficient (N-E) Q, the thermopower in a magnetic field u(H), and the thermal conductivity in a magnetic field x. A detailed analysis is given of their dependences on the thickness, magnetic field strength, and the parameter p. It follows from theanalysis that in a weak magnetic field the thermopower a and the N-E coefficient Q are practically pindependent. The computer calculations show that u and Q oscillate as functions of the magnetic field strength, the oscillations of Q being more pronounced than those of the electronic thermal conductivity. x varies monotonically with the magnetic field. ~CCJIenylOTCfi TePMOMarHHTHbIe 3@@eKTbI B TOHKHX IIpOBOAHIJJHX IIJIeHKaX B Mar-HHTHOM none, IIepIIeHaHKyJIIIpHOM IIOBepXHOCTH IIJIeHHH IIpH IIPOU3BOJIbHOM 3Ha9eHHEI IIapaMeTpa 3epItaJIbHOCTH p . Ha OCHOBe PeJDeHAII KHHeTHUeCHOl ' O YpaBeHHHII IIpH IIpOH3BOJIbHOa TOJIIJJHHe IIneHKH H 3Ha9eHHH MarHHTHOrO IIOJIII BhI4HCJIeHbI OCHOBHbIe TePMOMarHHTHbIe K03@@HqHeHTbI -KO3@@HLWeHT HepHCTa-3TTHHrCrayaeHa (H-3) Q, TePMO-3AC B MarHUTHOM IIOJIe u ( H ) H TeIIJIOIIpOBOAHOCTb B MarHHTHOM IIOJIe X . AaeTCII HeTaJIbHbIa aHaJIH3 UX 3aBHCHMOCTH OT TOJIIJJHHbI IIJIeHKH, BeJIH4HHbI MaPHHTHOrO IIOJIR H IIapaMeTpa 3epKaJIbHOCTEI p . n3 aHaJIH3a BbITeKaeT, 9 T O TepMO3aC U(H) H K 0 3 4 -(PIlIIHeHT H-3 Q B CJIysae TOHKHX IIJIeHOH B c n a 6 o~ MarHHTHOM IIOJIe II09TH He 3aBHCfiT OT napaMeTpa a e p~a n b~o c~a . YHcneHHmB pacqeT, nposeAeHHbI8 H a 3BM, I I O K B~~I B~~T , 9TO a ( H ) EI Q ( H ) B 3aBHCHMOCTH OT MaI' HElTHOI' O I I O J M OCIIHJIJIEIPYIOT, IIpHWM OCUHJIJIH-IIHH &(a) IIO aMIIJIHTyHe HaMHOrO CUnbHee, VeM OcqHJIJMIUiH a ( H ) , a TeIIJIOIIpOBO~HOCTb X H3MeHIIeTCR MOHOTOHHO C MarHEITHbIM IIOJIeM.