Electronic structure and unusual magnetic properties of diluted magnetic semiconductors Pb1-x-ySnxScyTe

Skipetrov, E. P.; Богданов, Е. В.; Kovalev, B. B.; Skipetrova, L. A.; Knotko, A.V.; Emelyanov, A. V.; Талденков, А. Н.; Слынько, В. И.

doi:10.1016/j.jallcom.2021.162330

Cited by 4 publications

(2 citation statements)

References 47 publications

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“…However, DMS technology is still in the research stage and needs further study. [8,9] Heusler compounds are known for their high spin polarizabilities and their Curie temperatures (T C ) can considerably exceed room temperature. [10] Due to this unique combination of properties, high T C spin filter materials can be developed using Heusler compounds.…”

Section: Introductionmentioning

confidence: 99%

Discovery of new potential magnetic semiconductors in quaternary Heusler compounds by addition of lanthanides

Guo 郭,

Feng 冯,

Tao 陶

et al. 2023

Chinese Phys. B

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Magnetic semiconductors have attracted a lot of attention by having both electronic charge and spin degrees of freedom. In this paper, we obtained twenty magnetic semiconductors such as FeVLaSb, FeVPrSb, FeCrTbSi, CoVDySi, and CoVHoSi by adding lanthanides to quaternary Heusler compounds based on the Slater-Pauling law and orbital hybridization theory. The relationship between the lattice constants and energy gaps of the magnetic semiconductors with lanthanide elements is investigated by in-depth analysis. These magnetic semiconductors of quaternary Heusler compounds promising candidates to find applications as spin filtering materials in spintronics devices.

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Section: Introductionmentioning

confidence: 99%

Discovery of new potential magnetic semiconductors in quaternary Heusler compounds by addition of lanthanides

Guo 郭,

Feng 冯,

Tao 陶

et al. 2023

Chinese Phys. B

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“…At the same time, it was demonstrated experimentally that n-Pb 1−y Sc y Te [12] and even p-Pb 1−x −y Sn x Sc y Te with the Fermi level located in the valence band [13] feature a considerable " Curie-Weiss" paramagnetic contribution to magnetization, which is apparently attributable to the existence of ions or clusters of Sc 2+ (3d 1 ) ions in crystals, at low temperatures. These results contradict the above model of rearrangement of the electronic structure of alloys in the process of doping with scandium and warrant further study of the magnetic properties of these DMSs.…”

Section: Introductionmentioning

confidence: 99%

Magnetic properties of Pb-=SUB=-1-y-=/SUB=-Sc-=SUB=-y-=/SUB=-Te alloys

et al. 2022

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The magnetic field dependences of the magnetization (B≤9 T, T=2-70 K) of the samples from a single crystal Pb1-yScyTe (y=0.01) ingot, synthesized by the Bridgman method, are studied. It is established that, in accordance with the generally accepted model of the rearrangement of the electronic structure of alloys during doping, there is no paramagnetic contribution of single scandium ions located in the nodes of the metal sublattice in the studied samples. The magnetization of the samples contains several contributions: superparamagnetism of scandium clusters, linear in field diamagnetism of the crystal lattice and the paramagnetism of free electrons, as well as the oscillating contribution of the de Haas--van Alphen effect. The field dependences of the main contribution of scandium clusters are successfully approximated using the Langevin function. The average concentration, magnetic moment and the total magnetic moment of the clusters per unit volume of the sample were determined with an increase in the impurity concentration along the ingot. Keywords: PbTe-based alloys, 3d-transition metal impurities, rearrangement of electronic structure, field dependences of magnetization, superparamagnetism of scandium clusters.

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Comparisons of the Magnetic and Half-Metallic Properties of Sb-V-Te Compounds in Low and Rich Vanadium Region

Özdemir

2022

J Supercond Nov Magn

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Electronic structure and unusual magnetic properties of diluted magnetic semiconductors Pb1-x-ySnxScyTe

Cited by 4 publications

References 47 publications

Discovery of new potential magnetic semiconductors in quaternary Heusler compounds by addition of lanthanides

Discovery of new potential magnetic semiconductors in quaternary Heusler compounds by addition of lanthanides

Magnetic properties of Pb-=SUB=-1-y-=/SUB=-Sc-=SUB=-y-=/SUB=-Te alloys

Comparisons of the Magnetic and Half-Metallic Properties of Sb-V-Te Compounds in Low and Rich Vanadium Region

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