Unique magnetic coupling between Mn doped stannaspherenes Mn@Sn12

Endohedral stannaspherenes Mn@Sn12 and its dimer: ferromagnetic or antiferromagnetic?

The endohedral Mn@Sn12 has been characterized, where a Mn cation is trapped inside an icosahedral Sn 12 , also called stannasphere, as can be seen in Figure 1. This endohedral structure is a sextuplet, with the 3d orbitals of Mn singly occupied. Thermodynamically, this encapsulation process is highly permitted, being the encapsulation free energy of around 24 kcal/mol. These monomers yields to ...

Spin-phonon coupling in single Mn-doped CdTe quantum dot

Spin-reorientation magnetic transitions in Mn-doped SmFeO3

Spin reorientation is a magnetic phase transition in which rotation of the magnetization vector with respect to the crystallographic axes occurs upon a change in the temperature or magnetic field. For example, SmFeO3 shows a magnetization rotation from the c axis above 480 K to the a axis below 450 K, known as the Γ4 → Γ2 transition. This work reports the successful synthesis of the new single-...

Magnetic exchange interactions in Mn doped ZnSnAs2 chalcopyrite

Accurate ab initio full-potential augmented plane wave (FP-LAPW) electronic calculations within generalized gradient approximation have been performed for Mn doped ZnSnAs2 chalcopyrites, focusing on their electronic and magnetic properties as a function of the geometry related to low Mn-impurity concentration and the spin magnetic alignment (i.e., ferromagnetic vs antiferromagnetic). As expecte...

Structure and magnetic properties of Mn-doped ZnO thin films

We report the structure and magnetic properties of Zn1–xMnxO thin fi lms grown on Si(001) substrates by pulsed laser deposition. Structure and phase evolution with Mn doping has been studied using x-ray diffraction, electron diffraction, and high-resolution electron microscopy. The undoped and 1% Mn-doped ZnO fi lms are completely (001) oriented, and further Mn doping deteriorates the (001) ori...