Searching for a route to synthesize in situ epitaxial Pr2Ir2O7 thin films with thermodynamic methods
Searching for a route to synthesize in situ epitaxial Pr2Ir2O7 thin films with thermodynamic methods
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寻找热力学方法原位外延Pr2Ir2O7薄膜合成途径
DOI:
10.1038/s41524-021-00610-9
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发表时间:
2021
影响因子:
9.7
通讯作者:
Eom, Chang-Beom
中科院分区:
文献类型:
--
作者:
Guo, Lu;Shang, Shun-Li;Campbell, Neil;Evans, Paul G.;Rzchowski, Mark;Liu, Zi-Kui;Eom, Chang-Beom
In situ growth of pyrochlore iridate thin films has been a long-standing challenge due to the low reactivity of Ir at low temperatures and the vaporization of volatile gas species such as IrO3(g) and IrO2(g) at high temperatures and highPO2. To address this challenge, we combine thermodynamic analysis of the Pr-Ir-O2system with experimental results from the conventional physical vapor deposition (PVD) technique of co-sputtering. Our results indicate that only high growth temperatures yield films with crystallinity sufficient for utilizing and tailoring the desired topological electronic properties and the in situ synthesis of Pr2Ir2O7thin films is fettered by the inability to grow withPO2on the order of 10 Torr at high temperatures, a limitation inherent to the PVD process. Thus, we suggest techniques capable of supplying high partial pressure of key species during deposition, in particular chemical vapor deposition (CVD), as a route to synthesis of Pr2Ir2O7.
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影响因子:
3.7
作者:
Lu Guo;N. Campbell;Yongseong Choi;Jong-Woo Kim;P. Ryan;H. Huyan;Linze Li;T. Nan;Jongwuk Kang;C. Sundahl;Xiaoqing Pan;M. Rzchowski;C. Eom
通讯作者:
Lu Guo;N. Campbell;Yongseong Choi;Jong-Woo Kim;P. Ryan;H. Huyan;Linze Li;T. Nan;Jongwuk Kang;C. Sundahl;Xiaoqing Pan;M. Rzchowski;C. Eom
影响因子:
6.1
作者:
T. Anderson;Hua Zhou;L. Xie;J. Podkaminer;J. J. Patzner-J.;S. Ryu;Xiaoqing Pan;C. Eom
通讯作者:
T. Anderson;Hua Zhou;L. Xie;J. Podkaminer;J. J. Patzner-J.;S. Ryu;Xiaoqing Pan;C. Eom
影响因子:
3.4
作者:
Eva H. Smith;J. Ihlefeld;C. Heikes;H. Paik;Y. Nie;C. Adamo;T. Heeg;Zi;D. Schlom
通讯作者:
D. Schlom
影响因子:
4
作者:
Brooks, Charles M.;Misra, Rajiv;Schlom, Darrell G.
通讯作者:
Schlom, Darrell G.
影响因子:
6.1
作者:
Adkison, Kate M.;Shang, Shun-Li;Liu, Zi-Kui
通讯作者:
Liu, Zi-Kui