Magnetic properties of the In-doped MnWO4-type solid solutions Mn1−3In2□ WO4 [□=vacancy; 0≤x≤0.11]

Bridging experiment and theory: Morphology, optical, electronic, and magnetic properties of MnWO4

“…3D. Despite the initial higher values of µ eff obtained from the 1 kOe data, the values between 5.96 and 6.14 µ B are consistent with that of 5.90 µ B expected for Mn 2+ (S = 5/2) and the experimental ones between 5.68 and 6.20 µ B reported for MnWO 4 samples [6,65].…”

“…In addition, for the nanosized systems with size distribution the magnetization can be dominated by the contributions of larger particles in low fields and by magnetic interactions between the nanoparticles [64]. In this case, a modified Curie-Weiss law can be used to analyze the magnetic susceptibility measured in low fields according to the following equation: χ = χ 0 + C/(T − Θ CW ), where χ 0 is a temperature-independent contribution [65]. By performing a fitting of this modified law to the 1 kOe data, µ eff and Θ CW approach the values obtained from the 10 and 90 kOe data, as displayed in open square symbols in Fig.…”

Two spin-canting textures in the antiferromagnetic phase AF1 of MnWO4based on the new polar atomistic model inP2

“…Huebnerite undergoes three magnetic phase transitions in the zero external field, resulting in three AF phases (denoted as AF1, AF2, and AF3) successively in a narrow temperature range. For instance, as demonstrated in figure 1, in our previous study of a natural specimen originating from Pasto Bueno [4] it is shown that AF1 is present below T 1 = 7.21 K, AF2 exists at 7.21 K up to 12.56 K (T 2 ), and AF3 is stable only in a small temperature range of 12.56-13.38 K (T N ). These magn etic behaviours are fairly comparable with those of synthetic crystals of pure MnWO 4 [2][3][4][5][6][7].…”

“…For instance, as demonstrated in figure 1, in our previous study of a natural specimen originating from Pasto Bueno [4] it is shown that AF1 is present below T 1 = 7.21 K, AF2 exists at 7.21 K up to 12.56 K (T 2 ), and AF3 is stable only in a small temperature range of 12.56-13.38 K (T N ). These magn etic behaviours are fairly comparable with those of synthetic crystals of pure MnWO 4 [2][3][4][5][6][7]. AF2 is an exemplary proto type of magnetoelectric (ME) coupling inducible in centro or nonpolar symmetric compounds [5][6][7][8].…”

Single-crystal investigations on the multiferroic material LiFe(WO$_4$)$_2$

“…Furthermore, it is unusual for spiral type-II multiferroics that short range magnetic ordering directly turns into a long-range spiral arrangement of magnetic moments without an intermediate phase [8,26,27]. For multiferroic MnWO 4 , various magnetic and nonmagnetic chemical substitutions have been studied and the intermediate antiferromagnetic paraeletric phase is not suppressed for Fe [28], Co [29], Ni [30], Cu [31], Zn [32], Mg [32], Mo [33], In [34] and Ir [35] substitution. For LiFe(WO 4 ) 2 a thorough investigation of the first magnetic transition at T N1 and confirmation of the spiral character below T N2 are thus needed requiring single-crystal investigations.…”