Using domain walls to perform non-local measurements with high spin signal amplitudes

Journal Article · Mon Jul 25 00:00:00 EDT 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4960002· OSTI ID:22594375

Savero Torres, W.; Pham, V. -T.; Zahnd, G.; Laczkowski, P.; Nguyen, V. -D.; Beigné, C.; Notin, L.; Jamet, M.; Marty, A.

Standard non-local measurements require lateral spin-valves with two different ferromagnetic electrodes, to create and to detect the spin accumulation. Here we show that non-local measurements can also be performed in a cross-shaped nanostructure, made of a single ferromagnetic wire connected to an orthogonal non-magnetic wire. A magnetic domain wall located underneath the ferromagnetic/non-magnetic interface is used to control the magnetizations of the injection and detection zones. As these zones can be very close, our results display spin signals possessing amplitudes larger than those obtained in conventional non-local measurements. We also show that this method can be used as a domain wall detection technique.

• OSTI ID: 22594375
• Journal Information: Applied Physics Letters, Vol. 109, Issue 4; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLITUDES
BUILDUP
DETECTION
ELECTRODES
FERROMAGNETIC MATERIALS
INJECTION
INTERFACES
MAGNETIZATION
NANOSTRUCTURES
SIGNALS
SPIN
VALVES
WALLS
WIRES
ZONES