Magnetic Properties of Fe₂P Single Crystal

Electromagnetic properties and electronic structure of the iron-based layered superconductor LaFePO

“…It should be noted that the detection limit of our XRD measurements is ~0.1 mol%, [37] which suggests that magnetic measurements can detect more trace impurities compared with those detected by the XRD 6 measurements. In fact, our magnetization measurements indicated that a ferromagnetic impurity Fe 2 P [38] was often involved in the F-doped LaOFeP; however this was not detected in the XRD pattern. However, these impurities do not provide significant influence on the following superconductivity characterizations, because it has been confirmed that they do not show superconductivity down to 2 K.…”

Magnetic properties of(Fe1−xCox)2Balloys and the effect of doping byEdström1, Werwiński2, Iuşan3 et al. 2015Phys. Rev. B

“…Recently, however, the availability (and thus price) of the rare-earth elements became rather volatile, calling for development of replacement materials which would use less or none of * Corresponding author: jan.rusz@physics.uu.se the rare-earth elements. Intense research efforts have started worldwide, revisiting previously known materials, such as Fe 2 P [5][6][7], FeNi [8], or Fe 16 N 2 [9], doing computational data mining among the large family of Heusler alloys [10], exploring the effects of strain [11][12][13][14][15][16][17] and doping by interstitial elements [18,19], multilayers such as Fe/W-Re [20] or, as a limiting case of multilayers, the L1 0 family of compounds [21], or promising Mn-based systems [22][23][24][25][26][27], among others.…”

First-order ferromagnetic transition in single-crystalline (Mn,Fe)2(P,Si)

“…14 The anisotropy constants above are one order of magnitude lower than those found for the parent compound Fe 2 P. 3,15 For magnetocaloric applications, it is of importance to reach a high degree of alignment of the magnetic moment at a magnetic field as low as possible. In this respect, the weakening of the magnetic anisotropy from Fe 2 P to (Mn,Fe) 2 (P,Si) materials is beneficial.…”

“…Among those, the Fe 2 P-based magnetocaloric materials have a rich and long history that dates back to the 1960s. [1][2][3][4] A great step towards a better understanding of this material was later made, thanks to the synthesis of high purity Fe 2 P single crystals. It is now well accepted that Fe 2 P is a ferromagnet with the easy direction along the c axis and that it shows a firstorder ferromagnetic transition at T C % 216 K. However, a rare peculiarity is that the crystal symmetry does not change across the phase transition, as the space group remains P 62m.…”

“…The as-grown crystals have a well-formed prismatic shape with average dimensions of about 0.15 Â 0.15 Â 1.5 mm 3 . The surfaces of these crystals are regular and homogeneous.…”