Published April 7, 2014
| Version v1
Journal article
Geometrical optimization of a local ballistic magnetic sensor
- 1. Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555 (Japan)
- 2. Advanced Electronics Research Division, INAMORI Frontier Research Center, Kyushu University, 744 Motooka, Fukuoka 819-0395 (Japan)
- 3. Department of Physics, Kyushu University, 6-10-1 Hakozaki, Fukuoka 812-8581 (Japan)
Description
We have developed a highly sensitive local magnetic sensor by using a ballistic transport property in a two-dimensional conductor. A semiclassical simulation reveals that the sensitivity increases when the geometry of the sensor and the spatial distribution of the local field are optimized. We have also experimentally demonstrated a clear observation of a magnetization process in a permalloy dot whose size is much smaller than the size of an optimized ballistic magnetic sensor fabricated from a GaAs/AlGaAs two-dimensional electron gas
Additional details
Identifiers
- DOI
- 10.1063/1.4871002;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 104
- Journal Issue
- 14
- Journal Page Range
- p. 142408-142408.4
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45082782
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ALUMINIUM ARSENIDES; GALLIUM ARSENIDES; GEOMETRY; MAGNETIZATION; OPTIMIZATION; PERMALLOY; SENSITIVITY; SENSORS
- Descriptors DEC
- ALLOYS; ALUMINIUM COMPOUNDS; ARSENIC COMPOUNDS; ARSENIDES; GALLIUM COMPOUNDS; IRON ALLOYS; MATHEMATICS; NICKEL ALLOYS; PNICTIDES; TRANSITION ELEMENT ALLOYS
Optional Information
- Notes
- (c) 2014 AIP Publishing LLC