title: High performance electronic device for the measurement of the inverse spin Hall effect.
abstract: We have developed a high performance analog electronic device that can be used for the measurement of the inverse spin Hall effect (ISHE) as a function of the applied magnetic field. The electronic circuit is based on the synchronous detection technique with a careful selection of the active components in order to optimize the response in this application. The electronic accessory was adapted for the simultaneous measurement of the ISHE signal and the microwave absorption in an electron spin resonance spectrometer and tested with a bilayer sample of 5 nm of permalloy (Ni80Fe20) and 5 nm of tantalum. The response of the electronic device was characterized as a function of the microwave power, the amplitude and frequency of the modulation signal, and the relative phase between signal and reference. This last characterization reveals a simple method to put in phase the signal with the reference. The maximum signal to noise ratio was achieved for a modulation frequency between 6 and 12 kHz, for the largest possible values of field modulation amplitude and microwave power.
authors.affiliation: Centro Atómico Bariloche (CNEA) and Conicet, 8400 Bariloche, Río Negro, Argentina.
authors.forename: Javier E
authors.initials: JE
authors.lastname: Gómez
authors.affiliation: Centro Atómico Bariloche (CNEA) and Conicet, 8400 Bariloche, Río Negro, Argentina.
authors.forename: Matías
authors.initials: M
authors.lastname: Guillén
authors.affiliation: Centro Atómico Bariloche (CNEA), Instituto Balseiro (U. N. Cuyo), and Conicet, 8400 Bariloche, Río Negro, Argentina.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Butera
authors.affiliation: Diamond Bell Technology LLC, Tucson, Arizona 85736, USA.
authors.forename: Neil P
authors.initials: NP
authors.lastname: Albaugh