Structural and magnetic properties and evidence of spin-glass behavior induced by Fe-doping in perovskite manganites B-site

Tlili, Mohamed; Bejar, M.; Dhahri, E.; Sajieddine, M.; Valente, M.A.; Hlil, E.K.

doi:10.1016/j.matchar.2010.12.007

Cited by 22 publications

(8 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Ca 2−x Sm x MnO 4 solid solutions were prepared by solid state reaction method [26]. The precursors of CaO, Sm 2 O 3 and MnO 2 (all of 99% purity) were mixed in appropriate ratios.…”

Section: Methodsmentioning

confidence: 99%

Structural and Magnetic Studies of Ca2−x Sm x MnO Compounds (x=0–0.4)

Issaoui

Tlili

Bejar

et al. 2011

J Supercond Nov Magn

Self Cite

View full text Add to dashboard Cite

The Ca 2−x Sm x MnO 4 (x = 0-0.4) compounds were synthesized by a solid-solid method and characterized by XRD at room temperature. The XRD profiles were indexed with a tetragonal structure (I/4mmm space group) for x ≤ 0.3 and orthorhombic one (Pnma space group) for x = 0.4. The magnetic measurements were studied as a function of temperature (T = 2-300 K) and applied field (μ 0 H = 0-10 T). When the temperature decreases, each compound has shown first a ferromagnetic-paramagnetic (FM-PM) transition and then an antiferromagnetic-ferromagnetic (AFM-FM) one. The transition temperatures are found to be Sm-doping dependent. For all compounds, a spin-glass phenomenon is evidenced by FC/ZFC magnetization curves.

show abstract

“…The Ca 2−x Sm x MnO 4 solid solutions were prepared by solid state reaction method [26]. The precursors of CaO, Sm 2 O 3 and MnO 2 (all of 99% purity) were mixed in appropriate ratios.…”

Section: Methodsmentioning

confidence: 99%

Structural and Magnetic Studies of Ca2−x Sm x MnO Compounds (x=0–0.4)

Issaoui

Tlili

Bejar

et al. 2011

J Supercond Nov Magn

Self Cite

View full text Add to dashboard Cite

show abstract

“…The process reported in the literature most often is the doping of manganites with various elements in two different positions. These are called A-site [15][16][17] and B-site (or Mn-site) [18][19][20][21][22] substitution. It is believed that the study of the doping effects at the Mn site by other elements with different valences, electron configuration, ionic radius, and non-magnetic ions is very important because of the crucial role of Mn ions in the CMR materials.…”

Section: Introductionmentioning

confidence: 99%

“…The Curie temperature (TC) for La0.7Sr0.3Mn0.9B0.1O3 compounds with B = Mn, Cr, Al, Ga, Ni, Co, Cu, Fe[8,[18][19][20][21][22].…”

mentioning

confidence: 99%

Effects of non magnetic aluminum Al doping on the structural, magnetic and transport properties in La0.57Nd0.1Sr0.33MnO3 manganite oxide

Tka

Cherif

Dhahri

et al. 2011

Journal of Alloys and Compounds

Self Cite

View full text Add to dashboard Cite

“…This method was used previously to study several complex oxide systems [14][15][16][17]. Erbium oxide and titanate oxide were calcined at 700 • C for 4 h and then compacted by dry pressing in steel dies to obtain pellets form under 2 tones/cm 2 .…”

Section: Methodsmentioning

confidence: 99%

Synthesis, Magnetic Properties, Magnetic Entropy and Arrot Plot of Antiferromagnetic Frustrated Er2Ti2O7 Compound

Amor

Bejar

Hussein

et al. 2011

J Supercond Nov Magn

Self Cite

View full text Add to dashboard Cite

The pyrochlore Er 3+ 2 Ti 4+ 2 O 2− 7 was synthesized via a ceramic method using two different oxides (Er 2 O 3 and TiO 2 ). The compound was found to crystallize in the cubic system with the Fd3m space group (No. 227). A magnetic study, carried out at 2 and 300 K under an applied magnetic field μ 0 H = 0.05 T, has revealed a complex magnetic structure at low temperature. The effective paramagnetic moment μ exp eff , deduced from (χ − χ 0 ) −1 = f (T ) curve, was found by assuming a zero moment on the transition metal atom Ti 4+ . The paramagnetic Curie-Weiss temperature θ CW = −21.54 K, the nearest neighbor interaction J nn = −2.30 K, the classical nearest neighbor J cl = −8.65 K and the dipolar D nn = 3.76 K interactions' values have revealed an antiferromagnetic behavior for Er 2 Ti 2 O 7 compound at low temperature. We have also studied the effects of the magnetic field splitting of rare-earth atom Er 3+ in the compound Er 2 Ti 2 O 7 curved Arrott plots.

show abstract

Structural and magnetic properties and evidence of spin-glass behavior induced by Fe-doping in perovskite manganites B-site

Cited by 22 publications

References 22 publications

Structural and Magnetic Studies of Ca2−x Sm x MnO Compounds (x=0–0.4)

Structural and Magnetic Studies of Ca2−x Sm x MnO Compounds (x=0–0.4)

Effects of non magnetic aluminum Al doping on the structural, magnetic and transport properties in La0.57Nd0.1Sr0.33MnO3 manganite oxide

Synthesis, Magnetic Properties, Magnetic Entropy and Arrot Plot of Antiferromagnetic Frustrated Er2Ti2O7 Compound

Contact Info

Product

Resources

About