Effect of polar discontinuity on the growth of LaNiO3/LaAlO3 superlattices

被引：37

作者：

Liu, Jian ^{[1
]}

Kareev, M. ^{[1
]}

Prosandeev, S. ^{[1
]}

Gray, B. ^{[1
]}

Ryan, P. ^{[2
]}

Freeland, J. W. ^{[2
]}

Chakhalian, J. ^{[1
]}

机构：

[1] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

[2] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 13期

基金：

美国国家科学基金会;

关键词：

electronic structure; lanthanum compounds; rough surfaces; superlattices; surface morphology; valency; INTERFACES;

D O I：

10.1063/1.3371690

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have conducted a detailed microscopic investigation of [LaNiO3(1 u.c.)/LaAlO3(1 u.c.)](N) superlattices grown on (001) SrTiO3 and LaAlO3 to explore the influence of polar mismatch on the resulting electronic and structural properties. Our data demonstrate that the initial growth on the nonpolar SrTiO3 surface leads to a rough morphology and unusual 2+ valence of Ni in the initial LaNiO3 layer, which is not observed after growth on the polar surface of LaAlO3. A devised model suggests that the polar mismatch can be resolved if the perovskite layers grow with an excess of LaO, which also accounts for the observed electronic, chemical, and structural effects.

引用

页数：3

共 50 条

[1] Oxygen vacancy formation and electronic reconstruction in strained LaNiO3 and LaNiO3/LaAlO3 superlattices
Geisler, Benjamin
Follmann, Simon
Pentcheva, Rossitza
PHYSICAL REVIEW B, 2022, 106 (15)
[2] Epitaxial growth and electrical transport property of artificial LaNiO3/LaAlO3 superlattices
Jang, A. N.
Seung, S. K.
Choi, K. H.
Song, J. H.
CERAMICS INTERNATIONAL, 2012, 38 : S627 - S630
[3] Ruddlesden-Popper faults in LaNiO3/LaAlO3 superlattices
Detemple, E.
Ramasse, Q. M.
Sigle, W.
Cristiani, G.
Habermeier, H. -U.
Keimer, B.
van Aken, P. A.
JOURNAL OF APPLIED PHYSICS, 2012, 112 (01)
[4] Epitaxial growth of (111)-oriented LaAlO3/LaNiO3 ultra-thin superlattices
Middey, S.
Meyers, D.
Kareev, M.
Moon, E. J.
Gray, B. A.
Liu, X.
Freeland, J. W.
Chakhalian, J.
APPLIED PHYSICS LETTERS, 2012, 101 (26)
[5] Quantum confinement of Mott electrons in ultrathin LaNiO3/LaAlO3 superlattices
Liu, Jian
Okamoto, S.
van Veenendaal, M.
Kareev, M.
Gray, B.
Ryan, P.
Freeland, J. W.
Chakhalian, J.
PHYSICAL REVIEW B, 2011, 83 (16):
[6] Orbital control in strained ultra-thin LaNiO3/LaAlO3 superlattices
Freeland, J. W.
Liu, Jian
Kareev, M.
Gray, B.
Kim, J. W.
Ryan, P.
Pentcheva, R.
Chakhalian, J.
EPL, 2011, 96 (05)
[7] Lattice distortions and octahedral rotations in epitaxially strained LaNiO3/LaAlO3 superlattices
Kinyanjui, M. K.
Lu, Y.
Gauquelin, N.
Wu, M.
Frano, A.
Wochner, P.
Reehuis, M.
Christiani, G.
Logvenov, G.
Habermeier, H. -U.
Botton, G. A.
Kaiser, U.
Keimer, B.
Benckiser, E.
APPLIED PHYSICS LETTERS, 2014, 104 (22)
[8] Epitaxially strained ultrathin LaNiO3/LaAlO3 and LaNiO3/SrTiO3 superlattices: a density functional theory + U study
Kim, Heung-Sik
Park, Sang Hyeon
Han, Myung Joon
arXiv, 2023,
[9] Quasiparticle self-consistent GW study of LaNiO3 and LaNiO3/LaAlO3 superlattice
Han, Myung Joon
Kino, Hiori
Kotani, Takao
PHYSICAL REVIEW B, 2014, 90 (03):
[10] Epitaxially strained ultrathin LaNiO3/LaAlO3 and LaNiO3/SrTiO3 superlattices: A density functional theory plus U study
Kim, Heung-Sik
Park, Sang Hyeon
Han, Myung Joon
CURRENT APPLIED PHYSICS, 2023, 50 : 53 - 60

← 1 2 3 4 5 →