Search Results - "Kallel, Sami"

Structural Magnetic and Electrical Properties in Nd-Doped Manganites (LaNd)SrMnTiO with 0 ≤ x ≤ 0.30.

Authors: Abassi, Amel Kallel, Nabil Kallel, Sami et al.

Source: Journal of Superconductivity & Novel Magnetism; Oct2014, Vol. 27 Issue 10, p2353-2364, 12p

Electrical Resistivity Behavior and VRH Transport Mechanism in Semiconducting LaSrMnFeCrO (0.10≤ x≤0.25) Manganites.

Authors: Ben Abdelkhalek, Sonia Kallel, Nabil Kallel, Sami et al.

Source: Journal of Superconductivity & Novel Magnetism; Nov2013, Vol. 26 Issue 11, p3171-3180, 10p

Magnetic properties of perovskites La0.7Sr0.3[formula omitted][formula omitted]TixO3: Monte Carlo simulation versus experiments.

Authors: Yahyaoui, Samia Kallel, Sami Diep, H.T.

Source: Journal of Magnetism & Magnetic Materials. Oct2016, Vol. 416, p441-448. 8p.

Subjects: Magnetic properties of perovskite, Lanthanum compounds, Monte Carlo method, Curie temperature, Phase transitions, Molecular interactions

Structural and magnetic properties of hole-doped(La0.56Ce0.14)Sr0.30MnO3 perovskite

Authors: Kallel, Nabil Kallel, Sami Peña, Octavio et al.

Source: Solid State Sciences. Aug2009, Vol. 11 Issue 8, p1494-1498. 5p.

Subjects: Perovskite, Magnetic properties, Molecular structure, Holes (Electron deficiencies), Semiconductor doping, Solid state chemistry, Cerium oxides, Rietveld refinement

Correlation between structural, magnetic and electrical transport properties of barium vacancies in the La0.67Ba0.33− x □ x MnO3 (x =0, 0.05, and 0.1) manganite.

Authors: Oumezzine, Marwène Kallel, Sami Peña, Octavio et al.

Source: Journal of Alloys & Compounds. Jan2014, Vol. 582, p640-646. 7p.

Subjects: Barium compounds, Manganese oxides, Manganite, Magnetic properties of metals, Electric properties of metals, Metals at low temperatures, Percolation theory, Curie temperature

Complex impedance spectroscopy studies of (La0.70−x Nd x )Sr0.30Mn0.70Cr0.30O3 (x≤0.30) perovskite compounds

Authors: Kallel, Sami Nasri, Ammar Kallel, Nabil et al.

Source: Physica B. May2011, Vol. 406 Issue 11, p2172-2176. 5p.

Subjects: Perovskite, Impedance spectroscopy, Semiconductor doping, Hopping conduction, Polarons, Activation (Chemistry), Relaxation phenomena, Crystal grain boundaries

Magnetocaloric properties in the Cr-doped La0.7Sr0.3MnO3 manganites

Authors: Kallel, Nabil Kallel, Sami Hagaza, Ahmed et al.

Source: Physica B. Feb2009, Vol. 404 Issue 2, p285-288. 4p.

Subjects: Magnetic materials, Manganite, Properties of matter, Polycrystals, Semiconductor doping, Curie temperature, Entropy, Perovskite

Large magnetocaloric effect in Ti-modified La0.70Sr0.30MnO3 perovskite

Authors: Kallel, Sami Kallel, Nabil Peña, Octavio et al.

Source: Materials Letters. May2010, Vol. 64 Issue 9, p1045-1048. 4p.

Subjects: Perovskite, Titanium, Magnetic properties of metals, Entropy, Curie temperature, Magnetic fields, Fermi liquid theory, Cooling

Influence of non-magnetic and magnetic ions on the MagnetoCaloric properties of La0.7Sr0.3Mn0.9M0.1O3 doped in the Mn sites by M=Cr, Sn, Ti.

Authors: Arayedh, Brahim Kallel, Sami Kallel, Nabil et al.

Source: Journal of Magnetism & Magnetic Materials. Jun2014, Vol. 361, p68-73. 6p.

Subjects: Manganese compounds, Magnetic ions, Caloric expenditure, Doping agents (Chemistry), Temperature measurements, Magnetic properties of metals

Determination of the spontaneous magnetization by analysis of the magnetic entropy change in La0.40Nd0.30Sr0.30Mn0.70Cr0.30O3

Authors: Kallel, Sami Kallel, Nabil Peña, Octavio et al.

Source: Journal of Alloys & Compounds. Aug2010, Vol. 504 Issue 1, p12-15. 4p.

Subjects: Magnetization, Entropy, Perovskite, Phase transitions, Transition temperature, Ferromagnetism

Electrical and magnetic properties of LaBaMn(Me)O perovskite manganites: case of manganese substituted by trivalent (Me = Cr) and tetravalent (Me = Ti) elements.

Authors: Oumezzine, Marwène Peña, Octavio Kallel, Sami et al.

Source: Applied Physics A: Materials Science & Processing. Mar2014, Vol. 114 Issue 3, p819-828. 10p.

Recurrent positional unilateral pulmonary edema following CABG: an uncommon case report.

Authors: Dammak, Aimen Abdenadher, Mohamed Safi, Faiza et al.

Source: Journal of Surgical Case Reports. Oct2024, Vol. 2024 Issue 10, p1-3. 3p.

Electrical conductivity and complex impedance analysis of La0.7−xNdxSr0.3Mn0.7Ti0.3O3 (x≤0.30) perovskite.

Authors: Abassi, Amel Kallel, Nabil Kallel, Sami et al.

Source: Journal of Magnetism & Magnetic Materials. Mar2016, Vol. 401, p853-859. 7p.

Subjects: Polycrystalline semiconductors, X-ray diffraction, Oxide minerals, Electric conductivity, Perovskite

Critical phenomena and estimation of the spontaneous magnetization through magnetic entropy change in La0.67Ba0.33Mn0.98Ti0.02O3

Authors: Oumezzine, Marwène Peña, Octavio Kallel, Sami et al.

Source: Solid State Sciences. Oct2011, Vol. 13 Issue 10, p1829-1834. 6p.

Subjects: Lanthanum compounds, Estimation theory, Magnetization, Entropy, Perovskite, Critical phenomena (Physics), Manganite

Crossover of the magnetocaloric effect and its importance on the determination of the critical behaviour in the La0.67Ba0.33Mn0.9Cr0.1O3 perovskite manganite

Authors: Oumezzine, Marwène Peña, Octavio Kallel, Sami et al.

Source: Journal of Alloys & Compounds. Oct2012, Vol. 539, p116-123. 8p.

Subjects: Perovskite, Lanthanum compounds, Manganite, Phase transitions, Entropy, Magnetization, Curie temperature

Structural studies and magnetic and transport properties of Cr-substituted La0.67Ba0.33Mn1−x Cr x O 3 (0≤ x ≤0.15) perovskites

Authors: Oumezzine, Marwène Peña, Octavio Kallel, Sami et al.

Source: Journal of Alloys & Compounds. Aug2012, Vol. 533, p33-40. 8p.

Subjects: Magnetic properties of metals, Transport theory, Chromium compounds, Perovskite, X-ray spectroscopy, Semiconductor doping, Electric conductivity

Transport behavior and mechanism of conduction of simultaneously substituted Y and Fe in La0.7Ba0.3MnO3 perovskite

Authors: Abdelkhalek, Sonia Ben Kallel, Nabil Kallel, Sami et al.

Source: Physica B. Nov2011, Vol. 406 Issue 21, p4060-4067. 8p.

Subjects: Hopping conduction, Electric conductivity, Lanthanum compounds, Yttrium, Iron, Perovskite, Polarons, Semiconductors

Critical behavior and magnetic entropy change in the La0.6Sr0.4Mn0.8Fe0.1Cr0.1O3 perovskite

Authors: Ben Abdelkhalek, Sonia Kallel, Nabil Kallel, Sami et al.

Source: Journal of Magnetism & Magnetic Materials. Nov2012, Vol. 324 Issue 22, p3615-3619. 5p.

Subjects: Lanthanum compounds, Perovskite, Ceramic materials, Magnetization, Phase transitions, Magnetic fields

Effect of the simultaneous substitution of two transition metals on the structural, magnetic and electrical properties of La0.6Sr0.4Mn1−2x Cr x Fe x O3

Authors: Ben Abdelkhalek, Sonia Kallel, Nabil Kallel, Sami et al.

Source: Journal of Magnetism & Magnetic Materials. Nov2010, Vol. 322 Issue 21, p3416-3422. 7p.

Subjects: Transition metals, Electric properties of metals, Magnetic properties of metals, Perovskite, Curie temperature, Magnetization, Zero-point field, Spin glasses, Antiferromagnetism

Research on charge-ordering state in La0.5Sr0.5MnO2.88 and La0.5Sr0.5Mn0.5Ti0.5O3 systems

Authors: Kallel, Nabil Ihzaz, Nejib Kallel, Sami et al.

Source: Journal of Magnetism & Magnetic Materials. Aug2009, Vol. 321 Issue 15, p2285-2289. 5p.

Subjects: Ferromagnetism, Perovskite, Chemical systems, Electric conductivity, Doped semiconductors, X-ray diffraction