CobaltMaghrebV1, PascalFrancis, Corpus, bibRecord, 000054

Critical behavior in Co-doped manganites La0.67Pb0.33Mn1-xCoxO3 (0 ≤ x ≤ 0.08)

Identifieur interne : 000054 ( PascalFrancis/Corpus ); précédent : 000053; suivant : 000055

Critical behavior in Co-doped manganites La0.67Pb0.33Mn1-xCoxO3 (0 ≤ x ≤ 0.08)

Auteurs : N. Dhahri ; J. Dhahri ; E. K. Hlil ; E. Dhahri

Source :

Journal of magnetism and magnetic materials [ 0304-8853 ] ; 2012.

RBID : Pascal:12-0239500

Descripteurs français

Pascal (Inist)
- Phénomène critique, Dopage, Transition ferromagnétique paramagnétique, Exposant critique, Modèle Heisenberg, Approximation champ moyen, Concentration impureté, Ordre longue distance, Point critique, Loi échelle, Addition cobalt, Aimantation, Manganite, Perovskites, Diagramme d'Arrott.

English descriptors

KwdEn :
- Arrott plot, Cobalt additions, Critical exponents, Critical phenomena, Critical points, Doping, Ferromagnetic-paramagnetic transitions, Heisenberg model, Impurity density, Long-range order, Magnetization, Manganites, Mean field approximation, Perovskites, Scaling laws.

Abstract

The critical properties of perovskite manganite La_0.67Pb_0.33Mn_1-xCO_xO₃ (0 ≤ x ≤ 0.08) around the paramagnetic-ferromagnetic phase transition are investigated through various techniques such as the modified Arrott plot, Kouvel-Fisher method and critical isotherm analysis. Though the nature of this transition was found to be in second order, the estimated critical exponents β (0.233 ≤ β ≤ 0.368), γ (1.03 ≤γ≤ 1.40) and δ (4.32 < δ ≤ 5.54) are in between the theoretically predicted values for three-dimensional Heisenberg and tricritical mean-field model. This model suggests the coexistence of the short-range and long-range ferromagnetic orders around the critical temperature. The values of the critical exponents obtained from different methods and the well-obeyed scaling behavior confirm that the calculated exponents are unambiguous and purely intrinsic to the system.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A08	`01`	`1`	`ENG`	`@1 Critical behavior in Co-doped manganites La_0.67Pb_0.33Mn_1-xCo_xO₃ (0 ≤ x ≤ 0.08)`
A11	`01`	`1`		`@1 DHAHRI (N.)`
A11	`02`	`1`		`@1 DHAHRI (J.)`
A11	`03`	`1`		`@1 HLIL (E. K.)`
A11	`04`	`1`		`@1 DHAHRI (E.)`
A14	`01`			`@1 Unité de Recherche de Physique des Solides, Département de Physique, Faculté des Sciences de Monastir @2 5019 @3 TUN @Z 1 aut. @Z 2 aut.`
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A43	`01`			`@1 INIST @2 17230 @5 354000509349920260`
A44				`@0 0000 @1 © 2012 INIST-CNRS. All rights reserved.`
A45				`@0 61 ref.`
A47	`01`	`1`		`@0 12-0239500`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Journal of magnetism and magnetic materials`
A66	`01`			`@0 NLD`
C01	`01`		`ENG`	@0 The critical properties of perovskite manganite La_0.67Pb_0.33Mn_1-xCO_xO₃ (0 ≤ x ≤ 0.08) around the paramagnetic-ferromagnetic phase transition are investigated through various techniques such as the modified Arrott plot, Kouvel-Fisher method and critical isotherm analysis. Though the nature of this transition was found to be in second order, the estimated critical exponents β (0.233 ≤ β ≤ 0.368), γ (1.03 ≤γ≤ 1.40) and δ (4.32 < δ ≤ 5.54) are in between the theoretically predicted values for three-dimensional Heisenberg and tricritical mean-field model. This model suggests the coexistence of the short-range and long-range ferromagnetic orders around the critical temperature. The values of the critical exponents obtained from different methods and the well-obeyed scaling behavior confirm that the calculated exponents are unambiguous and purely intrinsic to the system.
C02	`01`	`3`		`@0 001B70E47L`
C02	`02`	`3`		`@0 001B70E40C`
C03	`01`	`3`	`FRE`	`@0 Phénomène critique @5 02`
C03	`01`	`3`	`ENG`	`@0 Critical phenomena @5 02`
C03	`02`	`X`	`FRE`	`@0 Dopage @5 03`
C03	`02`	`X`	`ENG`	`@0 Doping @5 03`
C03	`02`	`X`	`SPA`	`@0 Doping @5 03`
C03	`03`	`3`	`FRE`	`@0 Transition ferromagnétique paramagnétique @5 04`
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C03	`04`	`3`	`FRE`	`@0 Exposant critique @5 05`
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C03	`05`	`3`	`FRE`	`@0 Modèle Heisenberg @5 06`
C03	`05`	`3`	`ENG`	`@0 Heisenberg model @5 06`
C03	`06`	`X`	`FRE`	`@0 Approximation champ moyen @5 07`
C03	`06`	`X`	`ENG`	`@0 Mean field approximation @5 07`
C03	`06`	`X`	`SPA`	`@0 Aproximación campo medio @5 07`
C03	`07`	`X`	`FRE`	`@0 Concentration impureté @5 08`
C03	`07`	`X`	`ENG`	`@0 Impurity density @5 08`
C03	`07`	`X`	`SPA`	`@0 Concentración impureza @5 08`
C03	`08`	`3`	`FRE`	`@0 Ordre longue distance @5 09`
C03	`08`	`3`	`ENG`	`@0 Long-range order @5 09`
C03	`09`	`3`	`FRE`	`@0 Point critique @5 10`
C03	`09`	`3`	`ENG`	`@0 Critical points @5 10`
C03	`10`	`3`	`FRE`	`@0 Loi échelle @5 11`
C03	`10`	`3`	`ENG`	`@0 Scaling laws @5 11`
C03	`11`	`3`	`FRE`	`@0 Addition cobalt @5 12`
C03	`11`	`3`	`ENG`	`@0 Cobalt additions @5 12`
C03	`12`	`3`	`FRE`	`@0 Aimantation @5 13`
C03	`12`	`3`	`ENG`	`@0 Magnetization @5 13`
C03	`13`	`X`	`FRE`	`@0 Manganite @2 NA @5 15`
C03	`13`	`X`	`ENG`	`@0 Manganites @2 NA @5 15`
C03	`13`	`X`	`SPA`	`@0 Manganito @2 NA @5 15`
C03	`14`	`3`	`FRE`	`@0 Perovskites @5 16`
C03	`14`	`3`	`ENG`	`@0 Perovskites @5 16`
C03	`15`	`3`	`FRE`	`@0 Diagramme d'Arrott @4 CD @5 96`
C03	`15`	`3`	`ENG`	`@0 Arrott plot @4 CD @5 96`
N21				`@1 184`

Format Inist (serveur)

NO :	PASCAL 12-0239500 INIST
ET :	Critical behavior in Co-doped manganites La_0.67Pb_0.33Mn_1-xCo_xO₃ (0 ≤ x ≤ 0.08)
AU :	DHAHRI (N.); DHAHRI (J.); HLIL (E. K.); DHAHRI (E.)
AF :	Unité de Recherche de Physique des Solides, Département de Physique, Faculté des Sciences de Monastir/5019/Tunisie (1 aut., 2 aut.); Institut Néel, CNRS-Université J. Fourier, B.P. 166/38042 Grenoble/France (3 aut.); Laboratoire de Physique Appliqué, Département de Physique, Faculté des Sciences de Sfax/3018/Tunisie (4 aut.)
DT :	Publication en série; Niveau analytique
SO :	Journal of magnetism and magnetic materials; ISSN 0304-8853; Coden JMMMDC; Pays-Bas; Da. 2012; Vol. 324; No. 5; Pp. 806-811; Bibl. 61 ref.
LA :	Anglais
EA :	The critical properties of perovskite manganite La_0.67Pb_0.33Mn_1-xCO_xO₃ (0 ≤ x ≤ 0.08) around the paramagnetic-ferromagnetic phase transition are investigated through various techniques such as the modified Arrott plot, Kouvel-Fisher method and critical isotherm analysis. Though the nature of this transition was found to be in second order, the estimated critical exponents β (0.233 ≤ β ≤ 0.368), γ (1.03 ≤γ≤ 1.40) and δ (4.32 < δ ≤ 5.54) are in between the theoretically predicted values for three-dimensional Heisenberg and tricritical mean-field model. This model suggests the coexistence of the short-range and long-range ferromagnetic orders around the critical temperature. The values of the critical exponents obtained from different methods and the well-obeyed scaling behavior confirm that the calculated exponents are unambiguous and purely intrinsic to the system.
CC :	001B70E47L; 001B70E40C
FD :	Phénomène critique; Dopage; Transition ferromagnétique paramagnétique; Exposant critique; Modèle Heisenberg; Approximation champ moyen; Concentration impureté; Ordre longue distance; Point critique; Loi échelle; Addition cobalt; Aimantation; Manganite; Perovskites; Diagramme d'Arrott
ED :	Critical phenomena; Doping; Ferromagnetic-paramagnetic transitions; Critical exponents; Heisenberg model; Mean field approximation; Impurity density; Long-range order; Critical points; Scaling laws; Cobalt additions; Magnetization; Manganites; Perovskites; Arrott plot
SD :	Doping; Aproximación campo medio; Concentración impureza; Manganito
LO :	INIST-17230.354000509349920260
ID :	12-0239500

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Pascal:12-0239500

Le document en format XML

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<front><div type="abstract" xml:lang="en">The critical properties of perovskite manganite La<sub>0.67</sub>
Pb<sub>0.33</sub>
Mn<sub>1-x</sub>
CO<sub>x</sub>
O<sub>3</sub>
 (0 ≤ x ≤ 0.08) around the paramagnetic-ferromagnetic phase transition are investigated through various techniques such as the modified Arrott plot, Kouvel-Fisher method and critical isotherm analysis. Though the nature of this transition was found to be in second order, the estimated critical exponents β (0.233 ≤ β ≤ 0.368), γ (1.03 ≤γ≤ 1.40) and δ (4.32 < δ ≤ 5.54) are in between the theoretically predicted values for three-dimensional Heisenberg and tricritical mean-field model. This model suggests the coexistence of the short-range and long-range ferromagnetic orders around the critical temperature. The values of the critical exponents obtained from different methods and the well-obeyed scaling behavior confirm that the calculated exponents are unambiguous and purely intrinsic to the system.</div>
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Pb<sub>0.33</sub>
Mn<sub>1-x</sub>
CO<sub>x</sub>
O<sub>3</sub>
 (0 ≤ x ≤ 0.08) around the paramagnetic-ferromagnetic phase transition are investigated through various techniques such as the modified Arrott plot, Kouvel-Fisher method and critical isotherm analysis. Though the nature of this transition was found to be in second order, the estimated critical exponents β (0.233 ≤ β ≤ 0.368), γ (1.03 ≤γ≤ 1.40) and δ (4.32 < δ ≤ 5.54) are in between the theoretically predicted values for three-dimensional Heisenberg and tricritical mean-field model. This model suggests the coexistence of the short-range and long-range ferromagnetic orders around the critical temperature. The values of the critical exponents obtained from different methods and the well-obeyed scaling behavior confirm that the calculated exponents are unambiguous and purely intrinsic to the system.</s0>
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<s5>10</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG"><s0>Critical points</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>Loi échelle</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="3" l="ENG"><s0>Scaling laws</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Addition cobalt</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>Cobalt additions</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Aimantation</s0>
<s5>13</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Magnetization</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Manganite</s0>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Manganites</s0>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Manganito</s0>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE"><s0>Perovskites</s0>
<s5>16</s5>
</fC03>
<fC03 i1="14" i2="3" l="ENG"><s0>Perovskites</s0>
<s5>16</s5>
</fC03>
<fC03 i1="15" i2="3" l="FRE"><s0>Diagramme d'Arrott</s0>
<s4>CD</s4>
<s5>96</s5>
</fC03>
<fC03 i1="15" i2="3" l="ENG"><s0>Arrott plot</s0>
<s4>CD</s4>
<s5>96</s5>
</fC03>
<fN21><s1>184</s1>
</fN21>
</pA>
</standard>
<server><NO>PASCAL 12-0239500 INIST</NO>
<ET>Critical behavior in Co-doped manganites La<sub>0.67</sub>
Pb<sub>0.33</sub>
Mn<sub>1-x</sub>
Co<sub>x</sub>
O<sub>3 </sub>
 (0 ≤ x ≤ 0.08)</ET>
<AU>DHAHRI (N.); DHAHRI (J.); HLIL (E. K.); DHAHRI (E.)</AU>
<AF>Unité de Recherche de Physique des Solides, Département de Physique, Faculté des Sciences de Monastir/5019/Tunisie (1 aut., 2 aut.); Institut Néel, CNRS-Université J. Fourier, B.P. 166/38042 Grenoble/France (3 aut.); Laboratoire de Physique Appliqué, Département de Physique, Faculté des Sciences de Sfax/3018/Tunisie (4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of magnetism and magnetic materials; ISSN 0304-8853; Coden JMMMDC; Pays-Bas; Da. 2012; Vol. 324; No. 5; Pp. 806-811; Bibl. 61 ref.</SO>
<LA>Anglais</LA>
<EA>The critical properties of perovskite manganite La<sub>0.67</sub>
Pb<sub>0.33</sub>
Mn<sub>1-x</sub>
CO<sub>x</sub>
O<sub>3 </sub>
 (0 ≤ x ≤ 0.08) around the paramagnetic-ferromagnetic phase transition are investigated through various techniques such as the modified Arrott plot, Kouvel-Fisher method and critical isotherm analysis. Though the nature of this transition was found to be in second order, the estimated critical exponents β (0.233 ≤ β ≤ 0.368), γ (1.03 ≤γ≤ 1.40) and δ (4.32 < δ ≤ 5.54) are in between the theoretically predicted values for three-dimensional Heisenberg and tricritical mean-field model. This model suggests the coexistence of the short-range and long-range ferromagnetic orders around the critical temperature. The values of the critical exponents obtained from different methods and the well-obeyed scaling behavior confirm that the calculated exponents are unambiguous and purely intrinsic to the system.</EA>
<CC>001B70E47L; 001B70E40C</CC>
<FD>Phénomène critique; Dopage; Transition ferromagnétique paramagnétique; Exposant critique; Modèle Heisenberg; Approximation champ moyen; Concentration impureté; Ordre longue distance; Point critique; Loi échelle; Addition cobalt; Aimantation; Manganite; Perovskites; Diagramme d'Arrott</FD>
<ED>Critical phenomena; Doping; Ferromagnetic-paramagnetic transitions; Critical exponents; Heisenberg model; Mean field approximation; Impurity density; Long-range order; Critical points; Scaling laws; Cobalt additions; Magnetization; Manganites; Perovskites; Arrott plot</ED>
<SD>Doping; Aproximación campo medio; Concentración impureza; Manganito</SD>
<LO>INIST-17230.354000509349920260</LO>
<ID>12-0239500</ID>
</server>
</inist>
</record>

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Critical behavior in Co-doped manganites La0.67Pb0.33Mn1-xCoxO3 (0 ≤ x ≤ 0.08)

Critical behavior in Co-doped manganites La0.67Pb0.33Mn1-xCoxO3 (0 ≤ x ≤ 0.08)

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