Recently, the intriguing phenomenon of emergent inductance has been theoretically proposed and experimentally observed in nanoscale spiral spin systems subjected to oscillating currents. Building upon these recent developments, we put forward the concept of emergent inductance in strongly correlated magnets in the normal state with spin fluctuations. It is argued that the inductance shows a positive peak at temperatures above the ordering temperature. As for the frequency dependence, in systems featuring a single-band structure or a gapped multiband, we observe a Drude-type inductance, while in gapless multiband systems, a non-Drude inductance with a sharp dip near zero frequency. These results offer valuable insights into the behavior of strongly correlated magnets and open up new possibilities for harnessing emergent inductance in practical applications.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.132.116501 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Miniature bioelectronic implants promise revolutionary therapies for cardiovascular and neurological disorders. Wireless power transfer (WPT) is a significant method for miniaturization, eliminating the need for bulky batteries in devices. Despite successful demonstrations of millimetric battery free implants in animal models, the robustness and efficiency of WPT are known to degrade significantly under misalignment incurred by body movements, respiration, heart beating, and limited control of implant orientation during surgery.
View Article and Find Full Text PDFModeling and optimization of a modified iron-yoked electromagnetic propulsion system using the gravitational search algorithm.
Sci Rep
October 2024
Electrical Engineering Department, Assiut University, Assiut, 71515, Egypt.
Article Synopsis
- Recent advancements highlight potential applications of electromagnetic launchers for defense, space exploration, and transportation, particularly in deploying satellites and enhancing high-speed rail systems.
- This paper proposes a novel design featuring a laminated iron yoke that significantly improves the inductance and efficiency of magnetic accelerators, achieving a 17.5% efficiency gain over traditional models.
- An artificial intelligence optimization technique, the gravitational search algorithm, further increases system efficiency by an additional 15%, resulting in a total efficiency of 20%.
Design and architecting of a broadband bullet-diamond shaped integrated frequency selective meta-surface absorber for aero-stealth platform.
Sci Rep
October 2024
Stealth & Camouflage Division, Defence Material Store R & D Establishment, DRDO, GT Road, Kanpur, UP, 208013, India.
Article Synopsis
- The study focuses on creating integrated frequency selective meta-surface (IFSMS) absorbers designed for aerospace stealth technology through a specialized metasurface combined with dielectric and conductive layers.
- A unique supercell layout was tested for its electrical response to microwave frequencies, showing consistent performance across various angles and modes, which is crucial for stealth applications.
- The fabrication process utilized advanced techniques like mask lithography with micro-carbon ink, and extensive material analysis confirmed the properties of the absorber, indicating its potential effectiveness in reducing radar visibility in specific frequency ranges.
Current induced hidden states in Josephson junctions.
Nat Commun
September 2024
Department of Physics, Harvard University, Cambridge, MA, 02138, USA.
Article Synopsis
- Josephson junctions allow for lossless electrical current flow in superconductors and are important for technologies like quantum bits, but understanding their supercurrent distribution has been challenging.
- A new platform using a scanning magnetometer with nitrogen vacancy centers in diamond allows researchers to visualize supercurrent flow at the nanoscale, revealing competing ground states in zero-resistance conditions.
- This research uncovers a new mechanism behind the Josephson diode effect and offers insights into unconventional superconductivity, which could improve quantum computing and energy-efficient technology.
Emerging non-invasive microwave and millimeter-wave imaging technologies for food inspection.
Crit Rev Food Sci Nutr
July 2024
Department of Human Nutrition and Hospitality Management, University of Alabama, Tuscaloosa, AL, USA.
The microwave and millimeter-wave (MMW) imaging technology is gaining increasing interest for food inspection. It allows for noninvasive, contactless, and fast scanning capabilities, while being cost-efficient and safe to human. This review paper introduces the fundamentals in the interaction of electromagnetic wave with food materials and the current MMW sensing and imaging systems used for foods.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!