Magnetotransport Properties of (Ga, Mn)As/GaAs/(Ga, Mn)As Trilayer Structures

Magnetotransport properties in „1100...- and „0001...-oriented MnAs films on GaAs substrates

Magnetic-field dependence of the resistivities in MnAs 1100 films on GaAs 001 and MnAs 0001 films on GaAs 111 B is investigated at low temperatures. Correspondence of the features in the longitudinal and transverse resistivities under reorientations of the magnetization enables us to distinguish the anisotropic magnetoresistance effect from the effects originating from the band structure of MnA...

Magnetoresistance effect and interlayer coupling of (Ga,?Mn)As trilayer structures

Magnetotransport Properties of Cd3As2 Nanostructures.

Three-dimensional (3D) topological Dirac semimetal has a linear energy dispersion in 3D momentum space, and it can be viewed as an analogue of graphene. Extensive efforts have been devoted to the understanding of bulk materials, but yet it remains a challenge to explore the intriguing physics in low-dimensional Dirac semimetals. Here, we report on the synthesis of Cd3As2 nanowires and nanobelts...

Magnetotransport in manganite trilayer junctions grown by 90° off-axis sputtering

We report magnetotransport studies on La0.67Sr0.33MnO3 /SrTiO3 /La0.67Sr0.33MnO3 trilayer junctions, fabricated using 90° off-axis sputtering. Films were grown on both ~001! ~LaAlO3!0.3–~Sr2AlTaO6!0.7 and ~110! NdGaO3 substrates. The sputtered trilayers show improved junction resistance uniformity over those made using pulsed laser deposition. Cross-sectional transmission electron microscopy an...

Transport and magnetotransport properties of Mn-doped InxGa1 xAs/GaAs quantum well structures

We report on the transport, magnetotransport and magnetic properties of In0.17Ga0.83As quantum well in GaAs d-doped by Mn. At low temperatures, the anomalous Hall effect was observed which detects the spin-polarized carriers. Negative magnetoresistance was found at low temperatures, which became positive at high temperature. r 2005 Elsevier B.V. All rights reserved. PACS: 72.20. i; 75.50.Gg