The complex permeability and harmonic generation of a Bi2Sr2CaCu2O8−y crystal: measurements and models

Autor: Q. H. Lam, Carson Jeffries, A. Behrooz, G. Briceno, Alex Zettl

Publikováno v: Journal of Magnetism and Magnetic Materials. 115:197-203

For a single crystal of Bi 2 Sr 2 CaCu 2 O 8− y at 77 K and subject to simultaneous ac and dc magnetic fields, measurements are reported for the complex ac permeability (”' − i”) and for the generated harmonic power P ( nf ). A plot of ”ver

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7b4889d4cd0491fe3a2239f35e345d08
https://doi.org/10.1016/0304-8853(92)90056-t

Nonlinear electrodynamics in granularYBa2Cu3O7: Measurements and models of complex permeability

Autor: Carson Jeffries, Lam Qh, Kim Y

Publikováno v: Physical Review B. 42:4846-4849

Measurements in ac and dc magnetic fields on a sintered rod of YBa{sub 2}Cu{sub 3}O{sub 7} at 77 K yield a clear distinction between inter- and intragranular contributions to the complex harmonic permeability {tilde {mu}}{sub {ital n}}={mu}{sub {ital

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b689e469021e779050778c79072cef36
https://doi.org/10.1103/physrevb.42.4846

Evidence for Universal Chaotic Behavior of a Driven Nonlinear Oscillator

Autor: Carson Jeffries, Jose M. Perez, James Testa

Publikováno v: Testa, J.; Perez, J.; & Jeffries, C.(1982). EVIDENCE FOR UNIVERSAL CHAOTIC BEHAVIOR OF A DRIVEN NONLINEAR OSCILLATOR. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/18m504mf

A bifurcation diagram for a driven nonlinear semiconductor oscillator is measured directly, showing successive subharmonic bifurcations to f/32, onset of chaos, noise band merging, and extensive noise-free windows. The overall diagram closely resembl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a6ae797eab217508c10eb1d9192f8ea
https://doi.org/10.1103/physrevlett.48.714

Bifurcations of a Forced Magnetic Oscillator near Points of Resonance

Autor: Carson Jeffries, Paul H. Bryant

Publikováno v: Physical Review Letters. 53:250-253

We study a forced symmetric oscillator containing a saturable inductor with magnetic hysteresis, approximated by a noninvertible map of the plane. The system displays a Hopf bifurcation to quasiperiodicity, entrainment horns, and chaos. Behavior near

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec7d15d242943f72c89f7ccc79e08abd
https://doi.org/10.1103/physrevlett.53.250

Symmetry breaking and nonlinear electrodynamics in the ceramic superconductor YBa2Cu3O7

Autor: Carson Jeffries, L. C. Bourne, Q. Harry Lam, Youngtae Kim, Alex Zettl

Publikováno v: Physical Review B. 37:9840-9843

For bulk samples of the ceramic superconductor Y${\mathrm{Ba}}_{2}$${\mathrm{Cu}}_{3}$${\mathrm{O}}_{7}$ in a radio-frequency magnetic field and in a dc magnetic field ${H}_{0}$ we observe novel nonlinear behavior including very-high-order odd-harmon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d53dcd4a384cc8287f29eb8a8b4a102e
https://doi.org/10.1103/physrevb.37.9840