Semi-adsorption-controlled growth window for half-Heusler FeVSb epitaxial films
Semi-adsorption-controlled growth window for half-Heusler FeVSb epitaxial films
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Half-Heusler FeVSb 外延薄膜的半吸附控制生长窗口
DOI:
10.1103/physrevmaterials.4.073401
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发表时间:
2020
影响因子:
3.4
通讯作者:
Morgan, Dane D.
中科院分区:
文献类型:
--
作者:
Shourov, Estiaque H.;Jacobs, Ryan;Behn, Wyatt A.;Krebs, Zachary J.;Zhang, Chenyu;Strohbeen, Patrick J.;Du, Dongxue;Voyles, Paul M.;Brar, Victor W.;Morgan, Dane D.
The electronic, magnetic, thermoelectric, and topological properties of Heusler compounds (compositionor) are highly sensitive to stoichiometry and defects. Here we establish the existence and experimentally map the bounds of asemi-adsorption-controlled growth window for semiconducting half-Heusler FeVSb films, grown by molecular beam epitaxy (MBE). We show that due to the high volatility of Sb, the Sb stoichiometry is self-limiting for a finite range of growth temperatures and Sb fluxes, similar to the growth of III-V semiconductors such as GaSb and GaAs. Films grown within this window are nearly structurally indistinguishable by x-ray diffraction (XRD) and reflection high energy electron diffraction (RHEED). The highest electron mobility and lowest background carrier density are obtained towards the Sb-rich bound of the window, suggesting that Sb vacancies may be a common defect. Similarsemi-adsorption-controlled bounds are expected for other ternary intermetallics that contain a volatile species{Sb, As, Bi}, e.g., CoTiSb, LuPtSb, GdPtBi, and NiMnSb. However, outstanding challenges remain in controlling the remaining Fe/V () transition metal stoichiometry.
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影响因子:
1.5
作者:
M. Yano;Yukio Suzuki;T. Ishii;Y. Matsushima;M. Kimata
通讯作者:
M. Yano;Yukio Suzuki;T. Ishii;Y. Matsushima;M. Kimata
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
C. Eaton;J. Lapano;Lei Zhang;M. Brahlek;R. Engel
通讯作者:
R. Engel
影响因子:
3.4
作者:
P. J. Strohbeen;Dongxue Du;Chenyu Zhang;Estiaque H. Shourov;F. Rodolakis;J. McChesney;P. Voyles;J. Kawasaki
通讯作者:
P. J. Strohbeen;Dongxue Du;Chenyu Zhang;Estiaque H. Shourov;F. Rodolakis;J. McChesney;P. Voyles;J. Kawasaki
影响因子:
1.9
作者:
S. Ivanov;P. Altukhov;T. Argunova;A. A. Bakun;A. A. Budza;V. Chaldyshev;Yury A. Kovalenko;P. Kop’ev;R. N. Kutt;B. Meltser;S. Ruvimov;S. V. Shaposhnikov;L. Sorokin;V. Ustinov
通讯作者:
V. Ustinov
影响因子:
4
作者:
Jalan, Bharat;Moetakef, Pouya;Stemmer, Susanne
通讯作者:
Stemmer, Susanne