Mott insulator to metal transition driven by oxygen incorporation in epitaxial LaTiO3 films
Mott insulator to metal transition driven by oxygen incorporation in epitaxial LaTiO3 films
复制标题
外延 LaTiO3 薄膜中氧掺入驱动莫特绝缘体到金属的转变
DOI:
10.1063/1.5132568
复制
发表时间:
2019-12
影响因子:
4
通讯作者:
Pan X. Q.
中科院分区:
文献类型:
--
作者:
Zhang T. T.;Gu C. Y.;Mao Z. W.;Chen X. F.;Gu Z. B.;Wang P.;Nie Y. F.;Pan X. Q.
Lanthanum titanate, LaTiO3, is an antiferromagnetic Mott insulator with a Ti 3d1 electronic configuration and exhibits an intriguing metallic state in its epitaxial film grown on the SrTiO3 substrate. Here, we explore the driving force of the Mott insulator to metal transition in LaTiO3 epitaxial films by a systematic study of the film growth conditions and biaxial strain using reactive molecular beam epitaxy. Within the achievable range (up to −2.4%) of the biaxial compressive strain in our study, we found that the oxygen incorporation plays a more crucial role than the biaxial epitaxial strain in the Mott insulator to metal transition in LaTiO3 films.Lanthanum titanate, LaTiO3, is an antiferromagnetic Mott insulator with a Ti 3d1 electronic configuration and exhibits an intriguing metallic state in its epitaxial film grown on the SrTiO3 substrate. Here, we explore the driving force of the Mott insulator to metal transition in LaTiO3 epitaxial films by a systematic study of the film growth conditions and biaxial strain using reactive molecular beam epitaxy. Within the achievable range (up to −2.4%) of the biaxial compressive strain in our study, we found that the oxygen incorporation plays a more crucial role than the biaxial epitaxial strain in the Mott insulator to metal transition in LaTiO3 films.
登录
查看更多内容
影响因子:
1.8
作者:
N. Mott
通讯作者:
N. Mott
影响因子:
64.8
作者:
Ohtomo, A;Muller, DA;Hwang, HY
通讯作者:
Hwang, HY
影响因子:
8.6
作者:
Biscaras, J.;Bergeal, N.;Lesueur, J.
通讯作者:
Lesueur, J.
影响因子:
8.6
作者:
R. Pentcheva;W. Pickett
通讯作者:
R. Pentcheva;W. Pickett
DOI:
10.1080/00107517308210764
发表时间:
1973-09
期刊:
--
影响因子:
--
作者:
N. F. Mott
通讯作者:
N. F. Mott