Critical properties in single crystals of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi mathvariant="normal">Pr</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi mathvariant="normal">Pb</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:mi mathvariant="normal">Mn</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>

Padmanabhan, B.; Bhat, H. L.; Elizabeth, Suja; Rößler, Sahana; Rößler, U.; Dörr, K.; Müller, K.‐H.

doi:10.1103/physrevb.75.024419

Cited by 107 publications

(26 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, we note the nonlinearity of the modified Arrott plots (Fig. 3), signalling the nature of ferromagnetic clusters in the La 0.7 Ca 0.3−x Sr x MnO 3 samples [43,49,55]. The formation of ferromagnetic clusters in these samples has been evidenced from EPR spectra [68].…”

Section: Resultsmentioning

confidence: 98%

“…The formation of ferromagnetic clusters in these samples has been evidenced from EPR spectra [68]. Therefore, it can be proposed that it is the formation of ferromagnetic clusters that leads to a percolation mechanism for conduction and metallic behaviors observed at T > T C in the paramagnetic region for the x = 0.2 and 0.25 samples [55,69]. A recent study has shown that the PM-FM transition of a (Sm 0.7 Nd 0.3 ) 0.52 Sr 0.48 MnO 3 manganite transforms from a FOMT to a SOMT when subjected to an external pressure [58].…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Tricritical point and critical exponents of La0.7Ca0.3−xSrxMnO3 (x=0, 0.05, 0.1, 0.2, 0.25) single crystals

Phan

Franco

Bingham

et al. 2010

Journal of Alloys and Compounds

184

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Tricritical point and critical exponents of La0.7Ca0.3−xSrxMnO3 (x=0, 0.05, 0.1, 0.2, 0.25) single crystals

Phan

Franco

Bingham

et al. 2010

Journal of Alloys and Compounds

184

View full text Add to dashboard Cite

“…Finally, the experimental estimates are still controversial concerning the critical exponents and even the order of the magnetic transitions including three-dimensional 3D-Heisenberg interaction [25,26], 3D-Ising values [27,28], mean-field values [29], and those that cannot be classified into any universality class ever known [30]. To better understand the nature of the PM-FM transition, it is important to study in detail the critical exponents associated with the transition, based on a systematic investigation of the critical behavior in terms of the modified Arrot plot [31] and Kouvel-Fisher [32] methods.…”

Section: Introductionmentioning

confidence: 99%

Critical Behavior Near the Paramagnetic to Ferromagnetic Phase Transition Temperature in Sr1.5Nd0.5MnO4 Compound

Zarai

Issaoui

Tozri

et al. 2016

J Supercond Nov Magn

View full text Add to dashboard Cite

The magnetic properties and the critical behavior in Sr 1.5 Nd 0.5 MnO 4 have been investigated by magnetization measurements. The magnetic data indicate that the compound exhibits a second-order phase transition. The estimated critical exponents derived from the magnetic data using various techniques such as modified Arrott plot, Kouvel-Fisher method, and critical magnetization isotherms M (T C , H ). The critical exponent values for this compound was found to match well with those predicted for the mean-field model (δ = 2.212 ± 0.124, γ = 0.975 ± 0.018, and β = 0.502 ± 0.012) at T C = 228.59 ± 0.17. The critical exponent γ is slightly inferior than predicted from the mean-field model. Such a difference may be due, within the context of the quenched disorder and essentially the presence of the Griffiths phase. The temperature variation in the effective exponent (γ eff ) is similar to those for disordered ferromagnets.

show abstract

“…[7]). According to the conventional static scaling law, the exponents can be expressed by the following equations.…”

Section: Resultsmentioning

confidence: 93%

DyNi2Mn—magnetisation and Mössbauer spectroscopy

et al. 2011

View full text Add to dashboard Cite

The physical properties of DyNi 2 Mn doped with 57 Fe have been investigated by X-ray diffraction, magnetisation (10-300 K) and 57 Fe Mössbauer spectroscopy measurements (5-300 K). DyNi 2 Mn( 57 Fe) crystallizes in the MgCu 2 -type cubic structure (Fd − 3m space group). The ordering temperature is found to be T C = 99(2) K, much higher than those of DyNi 2 (∼22 K) and DyMn 2 (∼35 K). Analyses of isothermal M-H curves and the related Arrott plots confirm that the magnetic phase transition at T C is second order. The magnetic entropy change around T C is 4.0 J/kg K for a magnetic field change of 0 T to 5 T. The spectra above T C exhibit features consistent with quadrupolar effects while below T C the spectra exhibit magnetic hyperfine splitting. The Debye temperature for DyNi 2 Mn has been determined as θ D = 200(20) K from a fit to the variable temperature isomer shift IS(T).

show abstract

Critical properties in single crystals ofPr1−xPbxMnO3

Cited by 107 publications

References 27 publications

Tricritical point and critical exponents of La0.7Ca0.3−xSrxMnO3 (x=0, 0.05, 0.1, 0.2, 0.25) single crystals

Tricritical point and critical exponents of La0.7Ca0.3−xSrxMnO3 (x=0, 0.05, 0.1, 0.2, 0.25) single crystals

Critical Behavior Near the Paramagnetic to Ferromagnetic Phase Transition Temperature in Sr1.5Nd0.5MnO4 Compound

DyNi2Mn—magnetisation and Mössbauer spectroscopy

Contact Info

Product

Resources

About