In bismuth-doped iron garnets, diamagnetic dilution of Fe with Ga is a well-known method to increase the Faraday rotation response under externally applied magnetic fields. It is found, however, that while this method improves responsivity at larger field strengths, the responsivity under smaller fields (which are more typical in sensing applications) is generally unaffected by Ga doping. The data indicate that the low-field responsivity is limited by anomalous pinning effects in the rotational magnetization process of the ferromagnetic domains. To overcome this, a magnetic biasing technique was developed, which enhances responsivity by activating Barkhausen steps in the films to free the domains from their pinning sites.
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Univ Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, FranceUniv Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, France
Popova, Elena
Galeano, Andres Felipe Franco
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Univ Perpignan Via Domitia, CNRS, Lab PROc Mat & Energie Solaire PROMES, F-66860 Perpignan, FranceUniv Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, France
Galeano, Andres Felipe Franco
Deb, Marwan
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Univ Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, FranceUniv Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, France
Deb, Marwan
Warot-Fonrose, Benedicte
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CNRS, CEMES, F-31055 Toulouse, France
CNRS, INA, TALEM, CEMES, Paris, FranceUniv Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, France
Warot-Fonrose, Benedicte
Kachkachi, Hamid
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Univ Perpignan Via Domitia, CNRS, Lab PROc Mat & Energie Solaire PROMES, F-66860 Perpignan, FranceUniv Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, France
Kachkachi, Hamid
Gendron, Francois
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Univ Paris 06, CNRS, Inst NanoSci Paris INSP, F-75252 Paris 05, FranceUniv Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, France
Gendron, Francois
Ott, Frederic
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CEA Saclay, CEA, CNRS, LLB, F-91191 Gif Sur Yvette, FranceUniv Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, France
Ott, Frederic
Berini, Bruno
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Univ Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, FranceUniv Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, France
Berini, Bruno
Keller, Niels
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Univ Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, FranceUniv Versailles St Quentin, CNRS, Grp Etud Matiere Condensee GEMaC, F-78035 Versailles, France
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Univ Strasbourg, CNRS, Inst Phys & Chim Mat Strasbourg, UMR 7504, BP 43,23 Rue Loess, F-67034 Strasbourg 02, FranceUniv Strasbourg, CNRS, Inst Phys & Chim Mat Strasbourg, UMR 7504, BP 43,23 Rue Loess, F-67034 Strasbourg 02, France
Deb, Marwan
Vomir, Mircea
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Univ Strasbourg, CNRS, Inst Phys & Chim Mat Strasbourg, UMR 7504, BP 43,23 Rue Loess, F-67034 Strasbourg 02, FranceUniv Strasbourg, CNRS, Inst Phys & Chim Mat Strasbourg, UMR 7504, BP 43,23 Rue Loess, F-67034 Strasbourg 02, France
Vomir, Mircea
Rehspringer, Jean-Luc
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Univ Strasbourg, CNRS, Inst Phys & Chim Mat Strasbourg, UMR 7504, BP 43,23 Rue Loess, F-67034 Strasbourg 02, FranceUniv Strasbourg, CNRS, Inst Phys & Chim Mat Strasbourg, UMR 7504, BP 43,23 Rue Loess, F-67034 Strasbourg 02, France
Rehspringer, Jean-Luc
Bigot, Jean-Yves
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Univ Strasbourg, CNRS, Inst Phys & Chim Mat Strasbourg, UMR 7504, BP 43,23 Rue Loess, F-67034 Strasbourg 02, FranceUniv Strasbourg, CNRS, Inst Phys & Chim Mat Strasbourg, UMR 7504, BP 43,23 Rue Loess, F-67034 Strasbourg 02, France