- Phase transformations of the ferromagnetic semiconductor Cd1-x MnxGeP2 at pressures of up to 5 GPa
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The electrical resistivity and Hall coefficient of Cd1-x Mn xGeP2 (x=0-0.19) have been measured at 300 K and hydrostatic pressures of up to 5 GPa. The results indicate that CdGeP 2 dissociates to CdP2 and Ge at p = 3.2 GPa, while the incorporation of manganese stabilizes the crystal structure of CdGeP 2, and Cd0.81Mn0.19GeP2 undergoes a reversible phase transition at p = 3.5 GPa. Pleiades Publishing, Inc., 2006.
- Novotortsev,Mollaev,Kamilov,Arslanov,Zalibekov,Marenkin,Varnavskii
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- Crystal growth and electrical properties of β-CdP2 single crystals
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Optically homogeneous single crystals of tetragonal cadmium diphosphide (β-CdP2) are prepared by vapor-phase growth, and their electrical conductivity, dielectric permittivity, and loss tangent are measured during slow heating from 78 to 400 K
- Trukhan,Soshnikov,Marenkin,Haliakevich
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- Charge and magnetization transport in Cd0.81mn 0.19GeP2 dilute magnetic semiconductor under high pressures
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Cd0.81Mn0.19GeP2 dilute magnetic semiconductor (DMS) has been subjected to a complex study of electric and magnetic properties under high hydrostatic pressures of up to 7 GPa with pressure rise and release. Electrical resistivity, Hall factor, transverse magnetoresistance, relative magnetic susceptibility, and volume magnetostriction have been measured. Compressibility (k) and spontaneous magnetization coeffi-cient (ωS) have been calculated. Pleiades Publishing, Ltd., 2012.
- Mollaev,Kamilov,Arslanov,Novotortsev,Marenkin,Trukhan,Arslanov,Zalibekov,Fedorchenkob
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- `DEVIL`S STAIRCASE` IN CdP2 AND ZnP2.
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The defect structures in different phases were studied. The occurrence of numerous planar interfaces in the beta -phase of CdP//2 suggests a possible explanation for the microphases observed. The absence of thermal dilation in certain small temperature ranges is explained.
- Manolikas,van Tendeloo,Amelinckx
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- Structural models for covalent non-oxidic glasses. Atomic distribution and local order in glassy CdGeP2 studied by 31P and 113Cd MAS and spin-echo and 31P-113Cd spin-echo double resonance NMR spectroscopy
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The structure of glassy CdGeP2 is discussed on the basis of complementary solid-state NMR experiments, including 31P and 113Cd magic-angle spinning (MAS) and spin-echo techniques, as well as 31P-113Cd spin-echo double resonance (SEDOR) NMR. Modeling of the dipolar interactions in conjunction with experimental studies on the crystalline model compounds CdP2 and CdGeP2 reveals the short-range order present in crystalline CdGeP2 is not preserved upon verification. In contrast to the crystalline analogue, glassy CdGeP2 contains a substantial fraction of phosphorus-phosphorus bonds which can be quantitated by means of 31P spin-echo decay data. The analysis reveals that the number of P-P bonds amounts to 55 ± 5% of that expected for a completely random distribution of atoms. The 113Cd-31P SEDOR results are qualitatively consistent with this conclusion but suggest a more complete randomization of the Cd atoms. As a consequence of this randomization of atomic occupancies, the number of Cd-P bonds is significantly reduced in the glassy state. The study provides important experimental data for the development of realistic atomic distribution models for covalent non-oxidic glasses.
- Franke, Deanna,Maxwell, Robert,Lathrop, David,Eckert, Hellmut
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p. 4822 - 4830
(2007/10/02)
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