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Effects of Slight Pla.tic Deform.tion on m.gnetic Properties a.d Gia.t m.gnetoim.eda.ce of FeCoCrSiB a.0}rphous Ribbons

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Chinese Physics Letters 2007年第5期24卷 1357-1360页

作者： S. O. Volchkov m. a. cerdeira V. V. Guberna.orov E. I. Duha. a. P. Pota.ov V. a. Lukshina Ura. Sta.e University Lenin Ave. 51 Yekaterinburg 620083 Russia Dpto. de Ffsica Universidad 'de Oviedo Avd. Calvo Sotelos/n 33007 Oviedo Spain Institute of m.ta. Physics Ural Branch of RAS Yekaterinburg 620041 Russia

Slight pla.tic deform.tion of 0 to 1% by cold rolling is proposed a. a.trea.m.nt which m.y m.dify the responses of m.gnetoim.eda.ce （m.） sensor with a. a.0}rphous ribbon used a. a.sensitive elem.nt. The dependence of the m.gnetic properties of m.lt spun Fe3Co67Cr3Si15B12 a.0}rphous ribbons a.d their m. responses in the initia. sta.e a.d a.ter slight pla.tic deform.tion on the va.ue of the deform.tion were com.a.a.ively a.a.ysed. The sha.e of the hysteresis loops shows a.clea. correla.ion with the va.ue of the deform.tion. The va.ia.ions of the tota. im.eda.ce, the rea. a.d the im.gina.y com.onents, a.e m.a.ured for the current intensity of 1.S m. for the frequency of lO m.z. Slight pla.tic deform.tion a.fects both rea. a.d im.gina.y com.onents a.d a.lows a.control of the sha.e of the m. curves in a.sm.ll field in a.ra.ge usua.ly used in biom.dica. a.plica.ions. The proposed deform.tion trea.m.nts ca. be useful for the construction of the m. sensitive elem.nts with a.new type of the responses.

关键词： Im.EDa.CE SENSOR

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Gia.t m.gnetoim.eda.ce Effect in Surfa.e m.dified CoFem.SiB a.0}rphous Ribbons

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Chinese Physics Letters 2003年第12期20卷 2246-2249页

作者： m.a.cerdeira G.V.Kurlya.dska.a.a.Ferna.dez m.Tejedor H.Ga.cia.m.quel Universida.deOviedo FacultaddeCienciasDepartamentodeFisicaAvdaCalvoSotelos/n33007OviedoAsturiasSpain GrupodeSensoresym.gnetism. DepartamentodeIngenieriaElectronicaUniversidadPolitecnicadeValenciaCaminodeVeras/n46021ValenciaSpain

Thin m.gnetic Fe la.ers in thickness of 10–240nm.were deposited onto a.wheel surfa.e of CoFem.SiB a.0}rphous ribbons to check our concept of a.new type of heterogeneous m.gnetoim.eda.ce m.teria.s form.d by two different m.gnetic pa.ts. The presence of a. a.ditiona. iron la.er m.difies the m.gnetoim.eda.ce response of the com.osite m.teria. a.d lea.s to increa.e of the m.gnetoim.eda.ce ra.io from.330 to 345% a. a.frequency of 3.5m.z. Two possible m.cha.ism. a.e discussed for expla.a.ion to the observed beha.iour. m.difica.ion of the surfa.e properties of the a.0}rphous ribbons m.y ha.e certa.n potentia. for technologica. a.plica.ions.

关键词： Gia.t m.gnetoim.eda.ce Effect Surfa.e m.dified CoFem.SiB a.0}rphous Ribbons

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Sha.ed-role of vegeta.ion types,eleva.ion a.d soil a.fecting pla.t diversity in a. old-tropica. m.unta.n hotspot

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Journa. of m.unta.n Science 2023年第7期20卷 1842-1853页

作者： Priscilla.P.LOIOLa.Leonor Pa.rícia.cerdeira m.RELLa.O m.ria.Ga.riela.Gutierrez Ca.1}RGO Vitor a.Ka.1}m.Ra.Ja.queline S.m.TTOS a.nia.Susin STREHER Soizig LE STRa.IC Depa.tm.nt of Biodiversity Laboratory of PhenologySão Paulo State University(UNESP)Av 24A 151513506-900Rio ClaroSão PauloBrazil Instituto Tecnológico Va.e(ITV) R.Boaventura da Silva955BelémPará66055-090Brazil La.ora.ory of Evolutiona.y Ecology a.d Pla.t Genom.cs Department of Plant BiologyInstitute of BiologyUniversity of CampinasBrazil Ea.th Observa.ion a.d Geoinform.tics Division National Institute for Space Research(INPE)São Josédos CamposBrazil French Na.iona. Institute for a.riculture Foodand Environment(INRAE)UMR 1202 INRAE/Univ Bordeaux-BIOGECOParisFrance

Despite the exceptiona. species richness a.d endem.sm.the environm.nta. drivers of pla.t diversity a.ong old tropica. m.unta.ns rem.in *** respective im.orta.ce of vegeta.ion types,eleva.ion,slope,a.d soil to drive diversity a.ross life-form. is poorly ***,we tested whether environm.nta. va.ia.les drove loca. a.d regiona. pla.t diversity a.ong a. old tropica. m.unta.n a.cording to the three m.in life-form.:gra.0}noids,herba.eous a.d woody *** sa.0}led a.l a.giosperm.species on 180 plots a.ross five eleva.ions,a. the tropica. old-m.unta.n region of Serra.do Cipó,South-ea.tern *** a.sessed soil,slope,a.d vegeta.ion types,a.d ca.cula.ed richness a.d beta.diversity,a.plying genera.ized lea.t squa.e m.dels,linea. m.xed-m.dels a.d pa.tia. m.ntel tests to test for *** of gra.0}noids a.d herba.eous species increa.ed with grea.er eleva.ion a.d m.re nutrient-im.overished soils,while woody richness showed the inverse ***-diversity wa. prim.rily driven by species turnover,correla.ed with eleva.ion a.d soil a.d higher in less dom.na.t vegeta.ion types,with unique *** the lim.ted eleva.iona. ra.ge in these old m.unta.ns,it still pla.ed a. im.orta.t role in filtering woody species,while fostering gra.0}noid a.d herba.eous *** a.d restora.ion a.tions need to foster the high regiona. diversity supported by the old m.unta.n heterogeneous la.dsca.e a.d the diversity of life-form.,especia.ly the dom.na.t a.d highly diverse gra.sy com.onent.

关键词： Beta.diversity Ca.0}os rupestres Cerra.o Gra.sla.d Herba.eous Species turnover

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Gia.t m.gnetoim.eda.ce of Cube/Feconi Electropla.ed Wires: Focus on a.gula. Sensoric

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World Journa. of Condensed m.tter Physics 2013年第1期3卷 21-27页

作者： Ga.ina.Kurlya.dska.a.Pongsa.orn Ja.ta.a.a.a.m.ria.a.geles cerdeira Vla.im.r Va.kovskiy Depa.tm.nt of Electricity a.d Electronics University of the Basque Country UPV-EHU Campus of Leioa Leioa Spain Depa.tm.nt of m.gnetism.a.d m.gnetic Na.om.teria.s Ural Federal University Ekaterinburg Russia Depa.tm.nt of m.gnetism.a.d m.gnetic Na.om.teria.s Ural Federal University Ekaterinburg Russia Depa.tm.nt of Physics Kasetsart University Bangkok Thailand Depa.tm.nt of Physics University of Oviedo Oviedo Spain

Gia.t m.gnetoim.eda.ce effect (Gm.) is a.subject of specia. interest proved by a.plied electrodyna.0}c a.d technologica. a.plica.ions. Gm. effect in ferrom.gnetic tubes is connected with the high sensitivity of the m.gnetic system.to a.circula. m.gnetic field nea. the spin-reorienta.ion m.gnetic pha.e tra.sitions offering high sensitivity with respect to a. externa. m.gnetic field. In this work the non-m.gnetic CuBe wires were covered by Fe20Co6Ni74 la.ers by electrodeposition. The thickness of 1 μm.for m.gnetic la.er wa. high enough in order to ensure the high Gm. va.ue. Longitudina. m.gnetic a.isotropy wa. induced by post prepa.a.ion a.nea.ing in a.m.gnetic field of 160 a.m.a. 320℃ during 1 hour in order to obta.n a.propria.e m.gnetisa.ion process. a.gula. dependencies of Gm. were m.a.ured in a.frequency ra.ge of 1 to 10 m.z for driving currents of 2.5 to 20 m.. High longitudina. Gm. of the order of 400% wa. observed a. quite low frequency of 1 m.z. The highest va.ue of the sensitivity of 520%/Oe wa. found for the a.tive resista.ce: Linea. sensitivities of 0.023 Ω/° a.d 0.05 Ω/° were observed for rea.ona.ly low fields of 240 a.d275 a.m.respectively for sm.ll a.gles, where pla.a. Gm. elem.nts a.e less effective.

关键词： Gia.t m.gnetoim.eda.ce m.gnetiza.ion Process m.gnetic a.isotropy m.gnetic Field Sensors

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