Multiple Transitions in Permalloy Half-Ring Wires with Finite-Size Effect.

Materials (Basel)

Department of Materials Engineering, National Chung Hsing University, Taichung 40227, Taiwan.

Published: March 2020

AI Article Synopsis

  • Six permalloy half-rings of varying sizes (120 nm to 360 nm) were connected in series to study magnetization reversal processes using anisotropic magnetoresistance (AMR).
  • The number of switching jumps observed in the AMR loops, which ranged from zero to five, depended on the applied longitudinal field and resulted from domain wall nucleation and depinning at the corners of the rings.
  • The findings suggest that higher external fields lead to fewer jumps in the magnetoresistance curve, indicating a reproducible response that could make these half-ring structures potential candidates for advanced magnetoelectronic devices.

Article Abstract

Six permalloy (Py) half-rings with finite-size from 120 nm to 360 nm were connected in series on five corners. The magnetization reversal processes were investigated by the measurement of anisotropic magnetoresistance (AMR). The number of switching jumps in the AMR loops, from zero to five, varied with the longitudinal applied field. These discrete jumps resulted from domain wall (DW) nucleating and depinning on the corners. The larger external field had a fewer number of jumps in the magnetoresistance (MR) curve. This reproducible and particular response of the domain wall device in the half-ring wires pattern might be one of the new promising magnetoelectronic devices.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7143246PMC
http://dx.doi.org/10.3390/ma13061384DOI Listing

Publication Analysis

Top Keywords

half-ring wires
8
domain wall
8
multiple transitions
4
transitions permalloy
4
permalloy half-ring
4
wires finite-size
4
finite-size permalloy
4
permalloy half-rings
4
half-rings finite-size
4
finite-size 120
4

Similar Publications

Aim: We have encountered four cases with Taylor spatial frames (TSF) (Smith & Nephew, Memphis, TN, USA) with breakage at the half-ring junction of the distal ring. This study examines the strain produced on different locations of the distal ring during loading and the effects on the strain of altering the frame construct.

Materials And Methods: We mounted two ring TSF constructs on tibia saw bone models.

View Article and Find Full Text PDF

Multiple Transitions in Permalloy Half-Ring Wires with Finite-Size Effect.

Materials (Basel)

March 2020

Department of Materials Engineering, National Chung Hsing University, Taichung 40227, Taiwan.

Article Synopsis
  • Six permalloy half-rings of varying sizes (120 nm to 360 nm) were connected in series to study magnetization reversal processes using anisotropic magnetoresistance (AMR).
  • The number of switching jumps observed in the AMR loops, which ranged from zero to five, depended on the applied longitudinal field and resulted from domain wall nucleation and depinning at the corners of the rings.
  • The findings suggest that higher external fields lead to fewer jumps in the magnetoresistance curve, indicating a reproducible response that could make these half-ring structures potential candidates for advanced magnetoelectronic devices.
View Article and Find Full Text PDF

Introduction: External fixator application can be difficult for olecranon fractures in presence of large degloving injuries. We describe use of simple Ilizarov ring fixator construct for grade IIIB open olecranon fracture management.

Case Report: A 45-year-old female with Grade III B open comminuted olecranon fracture (30*15cm degloving area) and ulnar nerve palsy was treated with a novel ring fixator construct.

View Article and Find Full Text PDF

Paediatric calcaneal fractures are rare injuries usually managed conservatively or with open reduction and internal fixation (ORIF). Closed reduction was previously thought to be impossible, and very few cases are reported in the literature. We report a new technique for closed reduction using Ilizarov half-rings.

View Article and Find Full Text PDF

Ultrasound tomography has considerable potential as a means of breast cancer detection because it reduces the operator-dependency observed in echography. A half-ring transducer array was designed based on breast anatomy, to obtain reflectivity images of the ductolobular structures using tomographic reconstruction procedures. The 3-MHz transducer array comprises 1024 elements set in a 190-degree circular arc with a radius of 100 mm.

View Article and Find Full Text PDF

Want 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!