DataVXACS Applied Electronic MaterialsPaper
journal article·2025-11-25

2D Weak Localization in ZnO Nanostripes

Cristian A. Figueroa, Benjamín Straube, Gladys Nieva, Julio Guimpel, Luciano A. Patrone, Germán Bridoux, Gabriel Juárez, Jorge M. Ferreyra, María Laura Malatto, Manuel Villafuerte

ACS Applied Electronic Materials· Volume 7· Issue 22
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Source abstract

Abstract

We fabricated oxygen-deficient ZnO thin films on sapphire substrates via pulsed laser deposition and precisely patterned them into 70 nm wide stripes using photolithography and focused ion beam nanomachining. This configuration allowed us to perform a detailed quantitative analysis of the weak localization (WL) anisotropy effects in a low-dimensional system. By aligning the magnetic field either parallel or perpendicular to the stripe plane in a maximum Lorentz force configuration, we uncovered a pronounced anisotropic magnetoresistance at low temperatures. Angle-dependent magnetoresistance measurements further elucidated this anisotropy, which is well described by the combination of Altshuler-Aronov’s 2D WL theory and the two-band model for positive magnetoresistance.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsMaterials processing

OpenAlex topics: ZnO doping and properties · Magnetic properties of thin films · Multiferroics and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratorio de Física del Sólido, INFINOA (CONICET-UNT), Facultad de Ciencias Exactas y Tecnología

Universidad Nacional de Tucumán

Laboratorio de Bajas Temperaturas, Centro Atómico Bariloche and Instituto Balseiro, Instituto de Nanociencia y Nanotecnología (CNEA─CONICET), Nodo Bariloche, 8400 S. C. Bariloche, Argentina

Instituto Nacional de Tecnología Industrial, Centro de Micro y Nanoelectrónica del Bicentenario (INTI-CMNB), Av. Gral. Paz 5445, San Martin, B1650KNA Buenos Aires, Argentina

Departamento de Tecnología de Aleaciones de Circonio, Centro Atómico Ezeiza

Comisión Nacional de Energía Atómica, Gerencia Combustibles Nucleares

Funding

Consejo Nacional de Investigaciones Cient??ficas y T??cnicas · Sistemas Nacionales de Grandes Instrumentos · Universidad Nacional de Tucum??n- SCAIT · Laboratorio de Investigaci??n y An??lisis por Rayos X (LINARX)

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