Anisotropic elasticity and enhanced thermal conductivity in ordered (AlxGa1-x)2O3 alloys
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OpenAlex topics: Ga2O3 and related materials · GaN-based semiconductor devices and materials · Thin-Film Transistor Technologies
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References (61)
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1. V.B. Mykhaylyk, H. Kraus, V. Kapustianyk, M. Rudko, Low temperature scintillation properties of Ga2O3. Appl. Phys. Lett. 115, 081103 (2019)10.1063/1.5119130 ↗
2. J.B. Varley, J.R. Weber, A. Janotti, C.G. Van de Walle, Oxygen vacancies and donor impurities in β-Ga2O3. Appl. Phys. Lett. 97, 142106 (2010)10.1063/1.3499306 ↗
3. G. Sfuncia, G. Nicotra, F. Giannazzo, B. Pécz, G.K. Gueorguiev, A. Kakanakova-Georgieva, 2D graphitic-like gallium nitride and other structural selectivity in confinement at the graphene/SiC interface. CrystEngComm 25, 5810 (2023)10.1039/D3CE00515A ↗
4. M.J. Tadjer, Toward gallium oxide power electronics. Science 378, 724 (2022)10.1126/science.add2713 ↗
5. J. Zhang, P. Dong, K. Dang, Y. Zhang, Q. Yan, H. Xiang, J. Su, Z. Liu, M. Si, J. Gao, M. Kong, H. Zhou, Y. Hao, Ultra-wide bandgap semiconductor Ga2O3 power diodes. Nat. Commun. 13, 3900 (2022)
6. Y. Suchikova, S. Nazarovets, A.I. Popov, Ga2O3 solar-blind photodetectors: from civilian applications to missile detection and research agenda. Opt. Mater. 157, 116397 (2024)10.1016/j.optmat.2024.116397 ↗
7. P. Jiang, X. Qian, X. Li, R. Yang, Three-dimensional anisotropic thermal conductivity tensor of single crystalline β-Ga2O3. Appl. Phys. Lett. (2018). https://doi.org/10.1063/1.505457310.1063/1.5054573 ↗
8. M. Slomski, N. Blumenschein, P.P. Paskov, J.F. Muth, T. Paskova, Anisotropic thermal conductivity of β-Ga2O3 at elevated temperatures: effect of Sn and Fe dopants. J. Appl. Phys. (2017). https://doi.org/10.1063/1.498647810.1063/1.4986478 ↗
9. A.S. Kulathuvayal, C.-h Shiau, Z. Hua, Y. Su, D. Chen, G. Yang, C. Sun, Modulation of thermal conductivity of iron-doped β-Ga2O3 by helium-ion irradiation. J. Alloys Compd. 1039, 182949 (2025)10.1016/j.jallcom.2025.182949 ↗
10. Y. Song, P. Ranga, Y. Zhang, Z. Feng, H.-L. Huang, M.D. Santia, S.C. Badescu, C.U. Gonzalez-Valle, C. Perez, K. Ferri, R.M. Lavelle, D.W. Snyder, B.A. Klein, J. Deitz, A.G. Baca, J.-P. Maria, B. Ramos-Alvarado, J. Hwang, H. Zhao, X. Wang, S. Krishnamoorthy, B.M. Foley, S. Choi, Thermal conductivity of β-phase Ga2O3 and (AlxGa1–x)2O3 heteroepitaxial thin films. ACS Appl. Mater. Interfaces 13, 38477 (2021)10.1021/acsami.1c08506 ↗
11. X. Duan, S. lqbal, M. Shi, B. Wang, L. Liu, J.-Y. Yang, Unraveling intrinsic mobility limits in two-dimensional (AlxGa1–x)2O3 alloys. J. Appl. Phys. 135, 225103 (2024)
12. C.-Z. Zhao, K.-Y. Zheng, First-principles study on the structural and electronic properties of β-(AlxGa1-x)2O3 alloy. J. Phys. Chem. Solids 184, 111694 (2024)
13. N. Zhu, B. Wang, K. Ma, X. Xue, J. Su, Structural characters and band offset of Ga2O3–Sc2O3 alloys. Appl. Phys. Lett. (2022). https://doi.org/10.1063/5.007399910.1063/5.0073999 ↗
14. T. Ishii, A. Takahashi, T. Nagafuji, F. Oba, Oxygen vacancies in α-(AlxGa1–x)2O3 alloys: a first-principles study. Appl. Phys. Express 16, 061002 (2023)10.35848/1882-0786/acd983 ↗
15. F. Zhang, K. Saito, T. Tanaka, M. Nishio, M. Arita, Q. Guo, Wide bandgap engineering of (AlGa)2O3 films. Appl. Phys. Lett. (2014). https://doi.org/10.1063/1.490052210.1063/1.4900522 ↗
16. C. Kranert, M. Jenderka, J. Lenzner, M. Lorenz, H. von Wenckstern, R. Schmidt-Grund, M. Grundmann, Lattice parameters and Raman-active phonon modes of β-(AlxGa1–x)2O3. J. Appl. Phys. (2015). https://doi.org/10.1063/1.491562710.1063/1.4915627 ↗
17. A.F.M.A.U. Bhuiyan, Z. Feng, L. Meng, H. Zhao, MOCVD growth of (010) β-(AlxGa1–x)2O3 thin films. J. Mater. Res. 36, 4804 (2021)10.1557/s43578-021-00354-8 ↗
18. R. Miller, F. Alema, A. Osinsky, Epitaxial β-Ga2O3 and β-(AlxGa1–x)2O3/Ga2O3 heterostructures growth for power electronics. IEEE Trans. Semicond. Manuf. 31, 467 (2018)10.1109/TSM.2018.2873488 ↗
19. T. Oshima, T. Okuno, N. Arai, Y. Kobayashi, S. Fujita, β-Al2xGa2-2xO3 thin film growth by molecular beam epitaxy. Jpn. J. Appl. Phys. 48, 070202 (2009)
20. S.W. Kaun, F. Wu, J.S. Speck, β-(AlxGa1−x)2O3/Ga2O3 (010) heterostructures grown on β-Ga2O3 (010) substrates by plasma-assisted molecular beam epitaxy. J. Vac. Sci. Technol. A 33, 041508 (2015)
21. B.W. Krueger, C.S. Dandeneau, E.M. Nelson, S.T. Dunham, F.S. Ohuchi, M.A. Olmstead, Variation of band gap and lattice parameters of β−(AlxGa1–x)2O3 powder produced by solution combustion synthesis. J. Am. Ceram. Soc. 99, 2467 (2016)10.1111/jace.14222 ↗
22. H. Peelaers, J.B. Varley, J.S. Speck, C.G. Van de Walle, Structural and electronic properties of Ga2O3-Al2O3 alloys. Appl. Phys. Lett. (2018). https://doi.org/10.1063/1.503699110.1063/1.5036991 ↗
23. W.-X. Zhou, C.-W. Wu, H.-R. Cao, Y.-J. Zeng, G. Xie, G. Zhang, Abnormal thermal conductivity increase in β-Ga2O3 by an unconventional bonding mechanism using machine-learning potential. Mater. Today Phys. 52, 101677 (2025)
24. H.W. Kim, H. Ko, Y.-C. Chung, S.B. Cho, Heterostructural phase diagram of Ga2O3–based solid solution with Al2O3. J. Eur. Ceram. Soc. 41, 611 (2021)10.1016/j.jeurceramsoc.2020.08.067 ↗
25. X. Duan, T. Wang, Z. Fu, J.-Y. Yang, L. Liu, Electron mobility in ordered β-(AlxGa1–x)2O3 alloys from first-principles. Appl. Phys. Lett. (2022). https://doi.org/10.1063/5.009634110.1063/5.0096341 ↗
26. S. Mu, H. Peelaers, C.G. Van de Walle, Ab initio study of enhanced thermal conductivity in ordered AlGaO3 alloys. Appl. Phys. Lett. (2019). https://doi.org/10.1063/1.513175510.1063/1.5131755 ↗
27. K. Wu, G. Chang, J. Ye, G. Zhang, Increased thermal conductivity of β-Ga2O3 using Al substitution: full spectrum phonon engineering. J. Appl. Phys. (2025). https://doi.org/10.1063/5.024988210.1063/5.0249882 ↗
28. G. Kresse, J. Furthmüller, Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set. Comput. Mater. Sci. 6, 15 (1996)10.1016/0927-0256(96)00008-0 ↗
29. G. Kresse, J. Furthmüller, Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set. Phys. Rev. B 54, 11169 (1996)10.1103/PhysRevB.54.11169 ↗
30. J.P. Perdew, K. Burke, M. Ernzerhof, Generalized gradient approximation made simple. Phys. Rev. Lett. 77, 3865 (1996)10.1103/PhysRevLett.77.3865 ↗
31. W. Kohn, L.J. Sham, Self-consistent equations including exchange and correlation effects. Phys. Rev. 140, A1133 (1965)10.1103/PhysRev.140.A1133 ↗
32. K. Momma, F. Izumi, VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data. J. Appl. Crystallogr. 44, 1272 (2011)10.1107/S0021889811038970 ↗
33. H. Peelaers, C.G. Van de Walle, Doping of Ga2O3 with transition metals. Phys. Rev. B 94, 195203 (2016)10.1103/PhysRevB.94.195203 ↗
34. H. Zeng, C. Ma, Y.R. Xue, M. Wu, P-type Ca-doped two-dimensional Ga2O3 with strain-modulated high hole mobility and anisotropy. J. Phys. D. Appl. Phys. 58, 385101 (2025)
35. Q. Jiang, J. Meng, Y. Shi, Z. Yin, J. Chen, J. Zhang, J. Wu, X. Zhang, Electrical and optical properties of hydrogen plasma treated β-Ga2O3 thin films. J. Semicond. 43, 092802 (2022)
36. S. Baroni, S. de Gironcoli, A. Dal Corso, P. Giannozzi, Phonons and related crystal properties from density-functional perturbation theory. Rev. Mod. Phys. 73, 515 (2001)10.1103/RevModPhys.73.515 ↗
37. X. Jia, Y. Ning, J. Yu, Y. Wu, Stability and electronic properties of two-dimensional Ga2O3 and (MxGa1-x)2O3 (M=Al,Ga) alloys. Appl. Surf. Sci. 616, 156439 (2023)
38. H. Zeng, M. Wu, C. Ma, X. Fu, H. Gao, Tunable electronic, transport, and optical properties of fluorine- and hydrogen-passivated two-dimensional Ga2O3 by uniaxial strain. J. Phys. D. Appl. Phys. 57, 315105 (2024)
39. L. Kean Ping, M.A. Mohamed, A. Kumar Mondal, M.F. Mohamad Taib, M.H. Samat, D.D. Berhanuddin, P.S. Menon, R. Bahru, First-principles studies for electronic structure and optical properties of Strontium doped β-Ga2O3. Micromachines 12, 348 (2021)10.3390/mi12040348 ↗
40. S. Krishnamoorthy, Z. Xia, C. Joishi, Y. Zhang, J. McGlone, J. Johnson, M. Brenner, A.R. Arehart, J. Hwang, S. Lodha, S. Rajan, Modulation-doped β-(Al0.2Ga0.8)2O3/Ga2O3 field-effect transistor. Appl. Phys. Lett. (2017). https://doi.org/10.1063/1.499356910.1063/1.4993569 ↗
41. H. Zeng, C. Ma, M. Wu, Compressively strained p-type Mg-doped two-dimensional Ga2O3 with a direct band gap and anisotropic hole mobility. ACS Appl. Nano Mater. 8, 10004 (2025)10.1021/acsanm.5c01369 ↗
42. X. Fu, X. Cheng, W. Liao, J. Guo, L. Li, A metallic CP3 monolayer with very high absorption coefficients for visible light and as the CO2 absorbent. Chem. Phys. Lett. 806, 140041 (2022)
43. J. Zhang, J. Shi, D.-C. Qi, L. Chen, K.H.L. Zhang, Recent progress on the electronic structure, defect, and doping properties of Ga2O3. APL Mater. 8, 020906 (2020)
44. X. Liu, K. Cheng, R. Li, Y. Jia, Q. Lu, S. Wang, H. Chen, F. Ma, Doping induced indirect-to-direct bandgap transition of two-dimensional Ga2O3. Appl. Surf. Sci. 553, 149458 (2021)
45. Z.-j Wu, E.-j Zhao, H.-p Xiang, X.-f Hao, X.-j Liu, J. Meng, Crystal structures and elastic properties of superhard IrN2 and IrN3 from first principles. Phys. Rev. B 76, 054115 (2007)
46. J. Ding, Y. Liu, S. Wang, X. Huang, Y. Qu, X. Chen, Y. Cai, C. Sun, S. Guo, Structural, anisotropic elasticity, and thermal properties of Ga2O3 polymorphs: a first-principles study. Comput. Condens. Matter 44, e01110 (2025)
47. S.F. Pugh, XCII. Relations between the elastic moduli and the plastic properties of polycrystalline pure metals. Lond. Edinb. Dublin Philos. Mag. J. Sci. 45, 823 (1954)10.1080/14786440808520496 ↗
48. H. Bai, Y. Duan, H. Qi, M. Peng, M. Li, S. Zheng, Anisotropic elastic and thermal properties and damage tolerance of CrH: a first-principles calculation. Vacuum 222, 112962 (2024)
49. S. Luan, L. Dong, R. Jia, Analysis of the structural, anisotropic elastic and electronic properties of β-Ga2O3 with various pressures. J. Cryst. Growth 505, 74 (2019)10.1016/j.jcrysgro.2018.09.031 ↗
50. Y. Sun, A. Yang, Y. Duan, L. Shen, M. Peng, H. Qi, Electronic, elastic, and thermal properties, fracture toughness, and damage tolerance of TM5Si3B (TM = V and Nb) MAB phases. Int. J. Refract. Hard Met. 103, 105781 (2022)
51. D.R. Clarke, Materials selection guidelines for low thermal conductivity thermal barrier coatings. Surf. Coat. Technol. 163–164, 67 (2003)10.1016/S0257-8972(02)00593-5 ↗
52. D.G. Cahill, R.O. Pohl, Lattice vibrations and heat transport in crystals and glasses. Annu. Rev. Phys. Chem. 39, 93 (1988)10.1146/annurev.pc.39.100188.000521 ↗
53. Y.H. Duan, Y. Sun, L. Lu, Thermodynamic properties and thermal conductivities of TiAl3-type intermetallics in Al–Pt–Ti system. Comput. Mater. Sci. 68, 229 (2013)10.1016/j.commatsci.2012.11.012 ↗
54. J. Feng, B. Xiao, C.L. Wan, Z.X. Qu, Z.C. Huang, J.C. Chen, R. Zhou, W. Pan, Electronic structure, mechanical properties and thermal conductivity of Ln2Zr2O7 (Ln=La, Pr, Nd, Sm, Eu and Gd) pyrochlore. Acta Mater. 59, 1742 (2011)10.1016/j.actamat.2010.11.041 ↗
55. J. Feng, B. Xiao, R. Zhou, W. Pan, D.R. Clarke, Anisotropic elastic and thermal properties of the double perovskite slab–rock salt layer Ln2SrAl2O7 (Ln=La, Nd, Sm, Eu, Gd or Dy) natural superlattice structure. Acta Mater. 60, 3380 (2012)10.1016/j.actamat.2012.03.004 ↗
56. D.T. Morelli, G.A. Slack, S.L. Shindé, J.S. Goela, High Thermal Conductivity Materials (Springer, New York, 2006)
57. D.T. Morelli, J.P. Heremans, G.A. Slack, Estimation of the isotope effect on the lattice thermal conductivity of group IV and group III-V semiconductors. Phys. Rev. B 66, 195304 (2002)10.1103/PhysRevB.66.195304 ↗
58. Z. Yan, S. Kumar, Phonon mode contributions to thermal conductivity of pristine and defective β-Ga2O3. Phys. Chem. Chem. Phys. 20, 29236 (2018)10.1039/C8CP05139A ↗
59. M.D. Santia, N. Tandon, J.D. Albrecht, Lattice thermal conductivity in β-Ga2O3 from first principles. Appl. Phys. Lett. (2015). https://doi.org/10.1063/1.492774210.1063/1.4927742 ↗
60. H. Sun, G. Yang, Influence of polymorphism on the lattice thermal conductivity of Ga2O3. J. Vac. Sci. Technol. A (2024). https://doi.org/10.1116/6.000384410.1116/6.0003844 ↗
61. Z. Guo, A. Verma, X. Wu, F. Sun, A. Hickman, T. Masui, A. Kuramata, M. Higashiwaki, D. Jena, T. Luo, Anisotropic thermal conductivity in single crystal β-gallium oxide. Appl. Phys. Lett. (2015). https://doi.org/10.1063/1.491607810.1063/1.4916078 ↗