Growth and characterisation of MnSb(0 0 0 1)/InGaAs(1 1 1)A epitaxial films

OPTICAL PROPERTIES OF CO-EVAPORATED THIN FILMS OF BINARY Bi 0-Te 0 AND Bi 0 -V 0 SYSTEMS

Thin films of binary Bi 0 -TeO and Bi 0 -V 0 systems were prepared by the thermal co-evaporation technique in a vacuum at room temperature. The optical absorption edge of these systems are studied in the wavelength of 200-800 nm using a PERKIN-ELMER uv/Vis spectrophotometer. It is found that the value of n=3/2 in the Davis-Mott equation is best fitted for the fundamental absorption edge f...

Magnetic and structural properties of epitaxial Fe thin films on GaAs(0 0 1) and interfaces

Fe(0 0 1) thin films (70 ( A) with Fe(7.2 ( A) tracer layers at the interface were epitaxially grown on GaAs(4 6) surfaces. Magneto-optic Kerr effect and Ferromagnetic resonance measurements indicate a dominant 2-fold in-plane magnetic anisotropy (easy axis along [1 1 0]) superimposed to a 4-fold anisotropy, and small coercivity (B10Oe). M . ossbauer (CEMS) measurements indicate no magnetic ‘‘d...

Step-flow growth of nanolaminate Ti3SiC2 epitaxial layers on 4H-SiC(0 0 0 1)

Epitaxial L10 FePt films on SrTiO3 (1 0 0) by sputtering

FePt magnetic thin films (20 nm) were deposited on SrTiO3 (1 0 0) single-crystal substrates at 150, 250, and 350 1C by DC magnetron sputtering. The dependence of the structural and magnetic properties of the FePt films on the substrate temperature was studied. At 150 1C, the FePt film showed a (1 1 1) preferred orientation. At 250 1C, the superlattice FePt (0 0 1) peak appeared indicating that ...

بررسی‌های ساختاری و مغناطیسی نانوذرات‌ پروسکایت LaMn1-xCoxO3 (0/1، 75/0، 5/0، 25/0، 0/0 = x)

In this work, the structural and magnetic properties of LaMn1-xCoxO3 (x = 0.00, 0.25, 0.50, 0.75, 1.00) are investigated. The structural characterization of compounds by X-ray powder diffraction is evidence for a rhombohedral structure (R -3c space group). Much less increase of the unit cell volume suggests that Co enters in lattice as Co+2 for x ≤ 0.5 while much more decrease of the unit cell ...