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Title: Heterostructural Alloy Phase Diagram for (Cd1-xZnx)3As2

Journal Article · · Physical Review Materials

Alloying the topological semimetal Cd3 As2 with Zn3 As2 provides a potential route for controlling the electronic properties. We predict the alloy phase diagram from first-principles calculations, considering that both end members have a crystal structure derived from the antifluorite lattice, but with different arrangements of the unoccupied cation sites. To overcome the limitations of the regular solution approximation and to include short-range order effects, we perform Monte Carlo simulations, parameterize the temperature dependence of the mixing enthalpy ΔHm, and perform thermodynamic integration of the free energy. The resulting phase diagram exhibits features that are unique to heterostructural alloy systems and provides computational predictions of solubility limits and composition ranges that are stable against spinodal decomposition.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
2395896
Report Number(s):
NREL/JA--5K00-88458; MainId:89237; UUID:364ee271-67eb-4682-9784-c64d4ed83dd3; MainAdminId:72863
Journal Information:
Physical Review Materials, Journal Name: Physical Review Materials Journal Issue: 6 Vol. 8; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (39)

Widely Tunable Optical and Thermal Properties of Dirac Semimetal Cd 3 As 2 journal February 2020
Thermal expansion and phase transitions of Cd3As2 and Zn3As2 journal August 1973
Monte Carlo study of entropy for face-centered cubic Ising antiferromagnets journal March 1981
Questaal: A package of electronic structure methods based on the linear muffin-tin orbital technique journal April 2020
Synthesis and Calculations of Wurtzite Al1–xGdxN Heterostructural Alloys journal November 2022
Combinatorial Synthesis of Cation-Disordered Manganese Tin Nitride MnSnN2 Thin Films with Magnetic and Semiconducting Properties journal March 2023
The Crystal and Electronic Structures of Cd 3 As 2 , the Three-Dimensional Electronic Analogue of Graphene journal March 2014
Perfect short-range ordered alloy with line-compound-like properties in the ZnSnN2:ZnO system journal May 2020
SciPy 1.0: fundamental algorithms for scientific computing in Python journal February 2020
Topological Phase Transition in Single Crystals of (Cd1−xZnx)3As2 journal June 2017
Large single crystal growth, transport property and spectroscopic characterizations of three-dimensional Dirac semimetal Cd3As2 journal August 2015
Electronic and optical properties of topological semimetal Cd3As2 journal April 2017
Solid phase immiscibility in GaInN journal October 1996
Molecular beam epitaxy of Cd 3 As 2 on a III-V substrate journal December 2016
Computational discovery of stable and metastable ternary oxynitrides journal June 2021
Ternary nitride semiconductors in the rocksalt crystal structure journal July 2019
Transport and optical properties of the Cd3-xZnxAs2 alloy system journal June 1971
Predicting Thermochemical Equilibria with Interacting Defects: Sr1−xCexMnO3−δ Alloys for Water Splitting journal February 2024
Physical Properties of Several II-V Semiconductors journal February 1961
Rationalizing accurate structure prediction in the meta-GGA SCAN functional journal July 2019
Band energy dependence of defect formation in the topological semimetal Cd3As2 journal June 2023
Direct link between disorder and magnetoresistance in topological semimetals journal June 2023
Projector augmented-wave method journal December 1994
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
First-principles calculations of the thermodynamic and structural properties of strained In x Ga 1 − x N and Al x Ga 1 − x N alloys journal July 2000
Ab initio description of heterostructural alloys: Thermodynamic and structural properties of Mg x Zn 1 − x O and Cd x Zn 1 − x O journal June 2010
Phase stability, point defects, and elastic properties of W-V and W-Ta alloys journal September 2011
Efficient determination of alloy ground-state structures journal November 2014
Three-dimensional Dirac cone carrier dynamics in Na 3 Bi and Cd 3 As 2 journal August 2016
Efficient determination of solid-state phase equilibrium with the multicell Monte Carlo method journal June 2020
Strongly Constrained and Appropriately Normed Semilocal Density Functional journal July 2015
Generalized Gradient Approximation Made Simple journal October 1996
Strain-Minimizing Tetrahedral Networks of Semiconductor Alloys journal October 2007
Defects in C d 3 A s 2 epilayers via molecular beam epitaxy and strategies for reducing them journal December 2019
Probing configurational disorder in ZnGeN 2 using cluster-based Monte Carlo journal February 2021
Novel phase diagram behavior and materials design in heterostructural semiconductor alloys journal June 2017
Negative-pressure polymorphs made by heterostructural alloying journal April 2018
Gate-tuned quantum Hall states in Dirac semimetal (Cd 1− x Zn x ) 3 As 2 journal May 2018
Optimization by Simulated Annealing journal May 1983