We study the pinning dynamics of magnetic flux (vortex) lines in a disordered type-II superconductor. Using numerical simulations of a directed elastic line model, we extract the pinning time distributions of vortex line segments. We compare different model implementations for the disorder in the surrounding medium: discrete, localized pinning potential wells that are either attractive and repulsive or purely attractive, and whose strengths are drawn from a Gaussian distribution; as well as continuous Gaussian random potential landscapes. We find that both schemes yield power-law distributions in the pinned phase as predicted by extreme-event statistics, yet they differ significantly in their effective scaling exponents and their short-time behavior.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevE.90.062108 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Imaging Bias-Driven Domain Wall Motion With Scanning Oscillator Piezoresponse Force Microscopy.
Small Methods
January 2025
Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN, TN 37830, USA.
Understanding ferroelectric domain wall dynamics at the nanoscale across a broad range of timescales requires measuring domain wall position under different applied electric fields. The success of piezoresponse force microscopy (PFM) as a tool to apply local electric fields at different positions and imaging their changing position, together with the information obtained from associated switching spectroscopies has fueled numerous studies of the dynamics of ferroelectric domains to determine the impact of intrinsic parameters such as crystalline order, defects and pinning centers, as well as boundary conditions such as environment. However, the investigation of sub-coercive reversible domain wall vibrational modes requires the development of new tools that enable visualizing domain wall motion under varying applied fields with high temporal and spatial resolution while also accounting for spurious electrostatic effects.
View Article and Find Full Text PDFExtension-block pinning versus custom-made plate fixation technique: A comparison of two methods in the treatment of osseous mallet finger injuries.
Ulus Travma Acil Cerrahi Derg
January 2025
Depatment of Orthopedics and Traumatology Kayseri Education and Research Hospital, Kayseri-Türkiye.
Background: Mallet finger injuries, characterized by a flexion deformity caused by trauma to the extensor mechanism at the base of the distal phalanx, can lead to significant functional impairment if not treated appropriately. Surgical interventions for osseous mallet finger injuries often include techniques such as extension-block pinning and perioperative modifying plate fixation. When comparing these two methods, it is critical to assess factors such as technical ease, perioperative considerations, and postoperative outcomes.
View Article and Find Full Text PDFSurgical glove perforation during intramedullary nailing of intertrochanteric fractures.
Sci Rep
January 2025
Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
Intramedullary nail fixation is a routine procedure for treatment of intertrochanteric fractures. Aseptic technique is vital for reducing postoperative complications, as intraoperative glove perforations increase the risk of surgical site infections. The aim of this study was to determine the incidence of surgical glove perforation during intramedullary nailing of intertrochanteric fractures and to identify surgery-specific steps at risk.
View Article and Find Full Text PDFMid-term outcomes of the modified Dunn procedure for slipped capital femoral epiphysis: results from a north African pediatric hip unit.
J Orthop Surg Res
January 2025
Department of Orthopaedics and Trauma Surgery Faculty of Medicine, Assiut University Hospitals, Assiut, 71515, Egypt.
Background: Slipped Capital Femoral Epiphysis (SCFE) is a prevalent pediatric orthopedic condition. Treatment options range from in situ pinning to various osteotomies, with the Modified Dunn procedure gaining significant attention over the past two decades. However, the suitability of this procedure for different SCFE subtypes and the risk of avascular necrosis (AVN), particularly in moderate and severe cases, remains controversial.
View Article and Find Full Text PDFThe Role of Re-Entrant Microstructures in Modulating Droplet Evaporation Modes.
Micromachines (Basel)
December 2024
Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan Campus, 170 Kessels Road, Brisbane, QLD 4111, Australia.
The evaporation dynamics of sessile droplets on re-entrant microstructures are critical for applications in microfluidics, thermal management, and self-cleaning surfaces. Re-entrant structures, such as mushroom-like shapes with overhanging features, trap air beneath droplets to enhance non-wettability. The present study examines the evaporation of a water droplet on silicon carbide (SiC) and silicon dioxide (SiO) re-entrant structures, focusing on the effects of material composition and solid area fraction on volume reduction, contact angle, and evaporation modes.
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!