Neumaier, Daniel and Vogl, A. and Eroms, J. and Weiss, D. (2008) Quantum transport in ferromagnetic permalloy nanostructures. PHYSICAL REVIEW B, 78 (17): 174424. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
We studied phase-coherent phenomena in mesoscopic permalloy (Ni81Fe19) samples by exploring low-temperature transport. Both differential conductance as a function of bias voltage and magnetoconductance of individual wires display conductance fluctuations. Analysis of these fluctuations yields a phase coherence length of similar to 250 nm at 25 mK as well as a 1/root T temperature dependence. To suppress conductance fluctuations by ensemble averaging, we investigated low-temperature transport in wire arrays and extended permalloy films. In these samples we have measured conductance corrections which stem from electron-electron interaction; but attempts to detect signatures of weak localization were without success.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CONDUCTANCE FLUCTUATIONS; LOCALIZATION; SEMICONDUCTOR; WIRES; TEMPERATURE; (GA,MN)AS; FILMS; METAL; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Oct 2020 08:21 |
| Last Modified: | 21 Oct 2020 08:21 |
| URI: | https://pred.uni-regensburg.de/id/eprint/30138 |
Actions (login required)
 |
View Item |
