Scaling study of magnetic phase transition and critical behavior in Nd0.55Sr0.45Mn0.98Ga0.02O3 manganite

Is γ-generalized statistical field theory complete?

“…The agreement is satisfactory, withing some margin of error of < 5% for the most of manganites. Then, the critical behavior of manganites is nonconventional [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] and can not be described by conventional SFT [22]. They belong to both γ KLS -Heinsenberg (N = 3) and γ KLS -Ising (N = 1) universality classes, respectively.…”

“…Recently, a field-theoretic renormalization group method for describing the unconventional critical behavior of some real imperfect systems known as manganites [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] was proposed [21]. These systems are complex and present a large number of strong interacting particles, defects, impurities, inhomogeneities, nonlinearities, competition etc.…”

The magnetic, magnetic entropy and critical behavior studies in La0.8Ba0.2MnO3 around magnetic phase transition temperature.

“…Moreover, the exponent's β and γ and the critical temperature TC can also be obtained by using The exponent δ was also estimated using Widom scaling relation [27]:…”

Critical phenomena and estimation of the spontaneous magnetization from a mean field analysis of the magnetic entropy change in La0.7Ca0.1Pb0.2Mn0.95Al0.025Sn0.025O3

“…According to eqn (6), log(M) vs. log(H) plot would give a straight line with slope 1/d, d is yielded as 2.94. Another way to estimate the critical component d, from b and g, is possible by using the Widom scaling relation shown in eqn(9):31,34…”