Frequency dependence of the magnetostrictive phenomenon in Metglas® 2605SA1 ribbon: A minor-loop case
Frequency dependence of magnetostrictive phenomenon of as-cast 2605SA1 ribbon was studied. We applied a sinusoidal sweeping field (H), with a fixed frequency (f), along length (L) of the ribbon, and simultaneously recorded the longitudinal magnetostriction (λ∥) and the transverse magnetostriction (λ...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2014-12-01
|
| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4905264 |
| _version_ | 1811278611154468864 |
|---|---|
| author | S. U. Jen C. C. Liu H. R. Lin S. H. Chou |
| author_facet | S. U. Jen C. C. Liu H. R. Lin S. H. Chou |
| author_sort | S. U. Jen |
| collection | DOAJ |
| description | Frequency dependence of magnetostrictive phenomenon of as-cast 2605SA1 ribbon was studied. We applied a sinusoidal sweeping field (H), with a fixed frequency (f), along length (L) of the ribbon, and simultaneously recorded the longitudinal magnetostriction (λ∥) and the transverse magnetostriction (λ⊥) as a function of time (t), respectively. f was varied from 0.07 to 122 Hz. In the low-f case (f =0.07 Hz), we observed the frequency-doubling (FD) feature in λ∥(t) and λ⊥(t) curves; i.e., only even harmonic magnetostrictive signals showed up. In the high-f case (f = 122 Hz), we observed the no-frequency-doubling (NFD) feature; i.e., both odd and even harmonic magnetostrictive signals showed up. A theory, based on the balance among various torques acting on magnetization, is developed to explain the f dependence of the magnetostriction phenomenon observed. From this theory, we conclude that only when the reflection symmetry of the system is reserved, i.e., when the equivalent easy axis (EEA) is perpendicular to L, will λ∥(t) and λ⊥(t) have the true-frequency-doubling (TFD) feature. However, for the as-cast 2605SA1 ribbon, EEA is not perpendicular to L. Thus, strictly speaking, we should observe the NFD feature only. Nevertheless, in the low-f limit, we can show that the FD feature is somewhat allowed under the condition, b/α being close to 1, where b and α are the two parameters used in the theory. From experimental data, this condition is met for as-cast 2605SA1. To make a distinction from TFD, this low-f feature is called close-frequency-doubling (CFD) in this paper. In general, the theory explains all the experimental results fairly well. |
| first_indexed | 2024-04-13T00:37:46Z |
| format | Article |
| id | doaj.art-733ce527e0924ca29f5440733c642ed5 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-13T00:37:46Z |
| publishDate | 2014-12-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-733ce527e0924ca29f5440733c642ed52022-12-22T03:10:16ZengAIP Publishing LLCAIP Advances2158-32262014-12-01412127140127140-1110.1063/1.4905264050412ADVFrequency dependence of the magnetostrictive phenomenon in Metglas® 2605SA1 ribbon: A minor-loop caseS. U. Jen0C. C. Liu1H. R. Lin2S. H. Chou3Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, ROCInstitute of Physics, Academia Sinica, Taipei, Taiwan 11529, ROCInstitute of Physics, Academia Sinica, Taipei, Taiwan 11529, ROCDepartment of Mathematics & Statistics, Bowling Green State University, Bowling Green, OH, 43402-0221, USAFrequency dependence of magnetostrictive phenomenon of as-cast 2605SA1 ribbon was studied. We applied a sinusoidal sweeping field (H), with a fixed frequency (f), along length (L) of the ribbon, and simultaneously recorded the longitudinal magnetostriction (λ∥) and the transverse magnetostriction (λ⊥) as a function of time (t), respectively. f was varied from 0.07 to 122 Hz. In the low-f case (f =0.07 Hz), we observed the frequency-doubling (FD) feature in λ∥(t) and λ⊥(t) curves; i.e., only even harmonic magnetostrictive signals showed up. In the high-f case (f = 122 Hz), we observed the no-frequency-doubling (NFD) feature; i.e., both odd and even harmonic magnetostrictive signals showed up. A theory, based on the balance among various torques acting on magnetization, is developed to explain the f dependence of the magnetostriction phenomenon observed. From this theory, we conclude that only when the reflection symmetry of the system is reserved, i.e., when the equivalent easy axis (EEA) is perpendicular to L, will λ∥(t) and λ⊥(t) have the true-frequency-doubling (TFD) feature. However, for the as-cast 2605SA1 ribbon, EEA is not perpendicular to L. Thus, strictly speaking, we should observe the NFD feature only. Nevertheless, in the low-f limit, we can show that the FD feature is somewhat allowed under the condition, b/α being close to 1, where b and α are the two parameters used in the theory. From experimental data, this condition is met for as-cast 2605SA1. To make a distinction from TFD, this low-f feature is called close-frequency-doubling (CFD) in this paper. In general, the theory explains all the experimental results fairly well.http://dx.doi.org/10.1063/1.4905264 |
| spellingShingle | S. U. Jen C. C. Liu H. R. Lin S. H. Chou Frequency dependence of the magnetostrictive phenomenon in Metglas® 2605SA1 ribbon: A minor-loop case AIP Advances |
| title | Frequency dependence of the magnetostrictive phenomenon in Metglas® 2605SA1 ribbon: A minor-loop case |
| title_full | Frequency dependence of the magnetostrictive phenomenon in Metglas® 2605SA1 ribbon: A minor-loop case |
| title_fullStr | Frequency dependence of the magnetostrictive phenomenon in Metglas® 2605SA1 ribbon: A minor-loop case |
| title_full_unstemmed | Frequency dependence of the magnetostrictive phenomenon in Metglas® 2605SA1 ribbon: A minor-loop case |
| title_short | Frequency dependence of the magnetostrictive phenomenon in Metglas® 2605SA1 ribbon: A minor-loop case |
| title_sort | frequency dependence of the magnetostrictive phenomenon in metglas r 2605sa1 ribbon a minor loop case |
| url | http://dx.doi.org/10.1063/1.4905264 |
| work_keys_str_mv | AT sujen frequencydependenceofthemagnetostrictivephenomenoninmetglas2605sa1ribbonaminorloopcase AT ccliu frequencydependenceofthemagnetostrictivephenomenoninmetglas2605sa1ribbonaminorloopcase AT hrlin frequencydependenceofthemagnetostrictivephenomenoninmetglas2605sa1ribbonaminorloopcase AT shchou frequencydependenceofthemagnetostrictivephenomenoninmetglas2605sa1ribbonaminorloopcase |