Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Switching of BJT01:22

Switching of BJT

857
Switching behavior in Bipolar Junction Transistors (BJTs) is a fundamental aspect utilized in various electronic circuits, particularly for digital logic applications like switches and amplifiers. In a typical switching circuit, a BJT alternates between cut-off and saturation modes, corresponding to the "off" and "on" states, respectively, thus behaving like an ideal switch.
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are...
857
Integration by Parts: Indefinite Integrals01:26

Integration by Parts: Indefinite Integrals

166
Integration by parts is a fundamental technique in calculus for evaluating integrals involving the product of two functions. It is particularly useful when direct integration is not feasible. The method is based on the product rule for differentiation, which states that the derivative of a product equals the derivative of the first function times the second, plus the first function times the derivative of the second. By integrating this identity and rearranging terms, the integration by parts...
166
Integration by Parts: Definite Integrals01:23

Integration by Parts: Definite Integrals

75
Definite integrals involving the product of two functions over a fixed interval can be evaluated using integration by parts. This method rewrites the integral as the difference of a product evaluated at the endpoints and a remaining definite integral that is often simpler to compute.A representative example is the definite integral of the inverse tangent function. Since there is no direct integration formula for arctan ⁡x, the integrand is rewritten as a product of arctan⁡ x and the...
75
Integrator and Differentiator01:13

Integrator and Differentiator

1.4K
Op-amp circuits have significant applications in various fields, including automotive engineering. One such application is cruise control systems in cars, where op-amp circuits are integral for maintaining a constant speed. In these systems, op-amps function as both integrators and differentiators.
An integrator within an op-amp circuit produces an output directly proportional to the integral of the input signal. This is achieved by replacing the feedback resistor in a typical inverting...
1.4K
Definite Integral01:29

Definite Integral

66
Consider a real-valued function defined on a closed interval. One of the fundamental objectives in calculus is to determine the area under the graph of such a function. When an exact computation is not readily available, this area can be estimated by dividing the interval into a finite number of equal subintervals. Each subinterval corresponds to a rectangle whose width is the length of the subinterval and whose height is determined by the value of the function at a selected point within that...
66
Indefinite Integrals01:25

Indefinite Integrals

69
The water inflow rate into a storage tank is not constant but increases over time. Initially, the pump delivers water at a rate of 5 L/min. However, the inflow rate increases by 2 L/min for each additional minute due to rising pressure or system adjustments. This scenario can be described mathematically by a linear function:It is necessary to integrate the inflow rate function to measure the total volume of water added to the tank over time. The total water volume V(t) is obtained by performing...
69

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Single-Particle Photothermal Circular Dichroism and Photothermal Magnetic Circular Dichroism Microscopy.

Nano letters·2024
Same author

Electric control of optically-induced magnetization dynamics in a van der Waals ferromagnetic semiconductor.

Nature communications·2024
Same author

Ultralow Power and Shifting-Discretized Magnetic Racetrack Memory Device Driven by Chirality Switching and Spin Current.

ACS applied materials & interfaces·2023
Same author

Optical Monitoring of the Magnetization Switching of Single Synthetic-Antiferromagnetic Nanoplatelets with Perpendicular Magnetic Anisotropy.

ACS photonics·2023
Same author

Chiral Spin Spirals at the Surface of the van der Waals Ferromagnet Fe<sub>3</sub>GeTe<sub>2</sub>.

Nano letters·2020
Same author

Deterministic all-optical magnetization writing facilitated by non-local transfer of spin angular momentum.

Nature communications·2020

Related Experiment Video

Updated: Jan 30, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

8.6K

Integrating all-optical switching with spintronics.

M L M Lalieu1, R Lavrijsen2, B Koopmans2

  • 1Department of Applied Physics, Institute for Photonic Integration, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands. m.l.m.lalieu@tue.nl.

Nature Communications
|January 12, 2019
PubMed
Summary
This summary is machine-generated.

Single-pulse all-optical switching (AOS) was demonstrated in synthetic-ferrimagnetic materials. This method combines AOS with spin Hall effect (SHE) for efficient magnetic domain motion, advancing spintronic memory.

More Related Videos

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography
11:21

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

Published on: January 15, 2013

12.0K
Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy
09:20

Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy

Published on: October 4, 2010

11.7K

Related Experiment Videos

Last Updated: Jan 30, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

8.6K
Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography
11:21

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

Published on: January 15, 2013

12.0K
Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy
09:20

Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy

Published on: October 4, 2010

11.7K

Area of Science:

  • Spintronics and Nanomagnetism
  • Optics and Photonics
  • Materials Science

Background:

  • All-optical switching (AOS) using femtosecond laser pulses shows promise for fast, energy-efficient spintronic memory.
  • Current AOS methods in ferromagnetic multilayers require multiple pulses, hindering speed and efficiency.
  • Synthetic-ferrimagnetic materials offer potential for improved magnetic switching dynamics.

Purpose of the Study:

  • To demonstrate single-pulse all-optical switching (AOS) in synthetic-ferrimagnetic materials.
  • To integrate AOS with spin Hall effect (SHE) for efficient magnetic domain motion.
  • To investigate the potential for integrated photonic memory devices.

Main Methods:

  • Experimental demonstration of single-pulse AOS in Pt/Co/Gd synthetic-ferrimagnetic racetracks.
  • Utilizing spin Hall effect (SHE) for driven motion of magnetic domains.
  • Employing field-driven-SHE-assisted domain wall (DW) motion measurements to determine SHE efficiency and DW chirality.

Main Results:

  • Successful on-the-fly single-pulse AOS achieved in Pt/Co/Gd racetracks.
  • Demonstrated efficient spin Hall effect (SHE) induced domain wall motion.
  • Quantified SHE efficiency and verified chirality of optically written domain walls.

Conclusions:

  • Pt/Co/Gd synthetic-ferrimagnetic racetracks enable both single-pulse AOS and efficient SHE-driven domain wall motion.
  • This combined approach overcomes limitations of multi-pulse AOS, enhancing speed and energy efficiency.
  • The findings pave the way for developing integrated photonic memory devices.