6533b873fe1ef96bd12d5501

RESEARCH PRODUCT

Low-pressure synthesis and Bridgman growth of Hg1−xMnxTe

V. MuñozCandid ReigN.v. Sochinskii

subject

Range (particle radiation)ChemistryAlloyAnalytical chemistryInfrared spectroscopyengineering.materialCondensed Matter PhysicsInorganic ChemistryPartition coefficientsymbols.namesakeLattice constantFourier transformHall effectMaterials ChemistrysymbolsengineeringChemical composition

description

To reduce Hg high pressure related to the high-temperature synthesis reaction between the components in elemental form, Hg 1-x Mn x Te bulk crystals were produced by a two-step procedure including (I) the alloy synthesis using HgTe crystals grown by the cold travelling heater method and elemental Mn and Te to complete the desired composition, followed by (II) the Bridgman growth. The growth was carried out at temperature in the range of 700-850°C and rate of 1 mm/h. The Hg 1-x Mn x Te crystals have been characterised by X-ray diffractometry, energy dispersive X-ray analysis, Fourier transformed infrared spectroscopy and Hall effect techniques. Although the distribution coefficient of Mn was found to be in the range of 3-3.5 in the first-to-freeze region, the crystals show a good axial composition uniformity throughout more than a half of the total length. The lattice parameter of Hg 1-x Mn x Te is reported for the studied composition range x = 0-0.15.

https://doi.org/10.1016/s0022-0248(98)00795-7