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OPTICAL SPECTRUM QUANTUMWISE FULL
OPTICAL SPECTRUM QUANTUMWISE CODE

Ultraviolet is also sometimes designated as short-wave or longwave. Ultraviolet: Wavelengths shorter than those in the visible spectrum and longer than for X rays are collectively designated ultraviolet (UV).

Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).The optical spectrum is divided into three major categories, as follows.

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This work is licensed under a Creative Commons Attribution 4.0 International License.Īuthors who publish with this journal agree to the following terms: Ĭopyright (c) 2020 Sukhender, Lalit Mohan, Sudesh Kumar, Deepak Sharma, Ajay Singh Verma Nieminen, Electron transport through monovalent atomic wises, Phys. Schwarz (Technical Universitatwien, Austria, 2001), ISBN 3-950. Luitz in: WIEN2k, An Augmented Plane Wave+Local Orbitals Program for Calculating Crystal Properties, editor: K.

OPTICAL SPECTRUM QUANTUMWISE FULL

Laref, Full Heusler alloys (Co2TaSi and Co2TaGe) as potential spintronic materials with tunable band profiles, J. In the optical conductivity spectrum a sharp peak is observed at 1.6 - 2.3eV.įr. The refractive index values for the compounds Co 2CrZ (Z= Al, Bi, Ge, Si) are observed as 18.104, 17.602, 17.252 and 17.289 respectively. The maximum energy loss is observed between 11.4 to 13eV for above these compounds. From the optical Spectra, complex dielectric functions calculated values are 312.370 and 141.991, 299.812 and 111.368, 288.127 and 106.342, 290.688 and 99.095 for the compounds Co 2CrZ (Z= Al, Bi, Ge, Si) respectively by using WIEN2k. Optical properties play an important role to understand the nature of material whether it can be used as optoelectronics device. However, the respective magnetic moment of these compounds is found to be 3.14, 5.08, 4.11 and 4.08µ B in ATK-VNL code. The calculated magnetic moment of these compounds Co 2CrZ (Z= Al, Bi, Ge, Si) are 3.06, 4.99, 3.99 and 3.99µ B respectively in FP-LAPW method. However, above mentioned compounds shows zero band gaps in ATK-VNL code. Further, these compounds have been found to be perfectly half-metallic ferromagnetic (HMF).

OPTICAL SPECTRUM QUANTUMWISE CODE

The respective band gaps in their minority-spin of Co 2CrZ (Z= Al, Bi, Ge, Si) are 0.696, 0.257, 0.602 and 0.858 eV near the Fermi level, which is implemented in WIEN2k code and showing 100% spin polarization.

In this paper, we have studied the structural, electronic, optical and magnetic properties of Co 2CrZ (Z= Al, Bi, Ge, Si) compounds by using two different methods one is full potential linearized augmented plane wave (FP-LAPW) method as implemented in WIEN2k and second is pseudo potential method as implemented in Atomistic Tool Kit-Virtual NanoLab (ATK-VNL).