Effect of Mn doping and charge transfer on LaTi1−x Mn x O3

Guixin Cao; Yakui Weng; Xinyu Yao; T. Zac Ward; Zheng Gai; David Mandrus; Shuai Dong

doi:10.1088/1361-648X/aca4b3

Effect of Mn doping and charge transfer on LaTi_1−xMn _x O₃

Guixin Cao, Yakui Weng, Xinyu Yao, T. Zac Ward, Zheng Gai, David Mandrus, Shuai Dong

Scanning Tunneling Microscopy Group

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We report the magnetic and electronic transport properties of Mn-doped LaTi_1−xMn _x O₃ (x= 0, 0.1, 0.3, 0.5) as a function of temperature and an applied magnetic field. It was found that the Mn-doped samples show a magnetic transition which is not present in the parent LaTiO₃. The Mn-doped samples showed fluctuations in magnetization at low fields below their Néel transition temperature indicating electronic phase separation in the material. Increased Mn content in the sample strengthens the ferromagnetic-like moment while maintaining G-type antiferromagnetic phase by charge transfer from Mn to Ti and influencing orbital ordering of the Ti³⁺ t_2g orbitals. The results are discussed in parallel with transport and bulk magnetization measurements detailing the electronic behavior. An additional context for the mechanism is supported by first-principles density-function theory calculations.

Original language	English
Article number	055601
Journal	Journal of Physics Condensed Matter
Volume	35
Issue number	5
DOIs	https://doi.org/10.1088/1361-648X/aca4b3
State	Published - Feb 8 2023

Funding

This work is supported by the National Natural Science Foundation of China (Nos. 10804068 and 10774097). The research at ORNL was sponsored by the Scientific User Facilities Division and Materials Science and Engineering Division Office of Basic Energy Sciences (TZW).

Funders	Funder number
Scientific User Facilities Division and Materials Science and Engineering Division Office of Basic Energy Sciences
TZW
National Natural Science Foundation of China	10804068, 10774097

Keywords

charge transfer
orbital reconstruction
titanates

Access to Document

10.1088/1361-648X/aca4b3

Cite this

@article{4399359b18b342e59c40a507547c8261,

title = "Effect of Mn doping and charge transfer on LaTi1−x Mn x O3",

abstract = "We report the magnetic and electronic transport properties of Mn-doped LaTi1−x Mn x O3 (x= 0, 0.1, 0.3, 0.5) as a function of temperature and an applied magnetic field. It was found that the Mn-doped samples show a magnetic transition which is not present in the parent LaTiO3. The Mn-doped samples showed fluctuations in magnetization at low fields below their N{\'e}el transition temperature indicating electronic phase separation in the material. Increased Mn content in the sample strengthens the ferromagnetic-like moment while maintaining G-type antiferromagnetic phase by charge transfer from Mn to Ti and influencing orbital ordering of the Ti3+ t2g orbitals. The results are discussed in parallel with transport and bulk magnetization measurements detailing the electronic behavior. An additional context for the mechanism is supported by first-principles density-function theory calculations.",

keywords = "charge transfer, orbital reconstruction, titanates",

author = "Guixin Cao and Yakui Weng and Xinyu Yao and Ward, {T. Zac} and Zheng Gai and David Mandrus and Shuai Dong",

note = "Publisher Copyright: {\textcopyright} 2022 IOP Publishing Ltd.",

year = "2023",

month = feb,

day = "8",

doi = "10.1088/1361-648X/aca4b3",

language = "English",

volume = "35",

journal = "Journal of Physics Condensed Matter",

issn = "0953-8984",

publisher = "IOP Publishing",

number = "5",

}

TY - JOUR

T1 - Effect of Mn doping and charge transfer on LaTi1−x Mn x O3

AU - Cao, Guixin

AU - Weng, Yakui

AU - Yao, Xinyu

AU - Ward, T. Zac

AU - Gai, Zheng

AU - Mandrus, David

AU - Dong, Shuai

PY - 2023/2/8

Y1 - 2023/2/8

N2 - We report the magnetic and electronic transport properties of Mn-doped LaTi1−x Mn x O3 (x= 0, 0.1, 0.3, 0.5) as a function of temperature and an applied magnetic field. It was found that the Mn-doped samples show a magnetic transition which is not present in the parent LaTiO3. The Mn-doped samples showed fluctuations in magnetization at low fields below their Néel transition temperature indicating electronic phase separation in the material. Increased Mn content in the sample strengthens the ferromagnetic-like moment while maintaining G-type antiferromagnetic phase by charge transfer from Mn to Ti and influencing orbital ordering of the Ti3+ t2g orbitals. The results are discussed in parallel with transport and bulk magnetization measurements detailing the electronic behavior. An additional context for the mechanism is supported by first-principles density-function theory calculations.

AB - We report the magnetic and electronic transport properties of Mn-doped LaTi1−x Mn x O3 (x= 0, 0.1, 0.3, 0.5) as a function of temperature and an applied magnetic field. It was found that the Mn-doped samples show a magnetic transition which is not present in the parent LaTiO3. The Mn-doped samples showed fluctuations in magnetization at low fields below their Néel transition temperature indicating electronic phase separation in the material. Increased Mn content in the sample strengthens the ferromagnetic-like moment while maintaining G-type antiferromagnetic phase by charge transfer from Mn to Ti and influencing orbital ordering of the Ti3+ t2g orbitals. The results are discussed in parallel with transport and bulk magnetization measurements detailing the electronic behavior. An additional context for the mechanism is supported by first-principles density-function theory calculations.

KW - charge transfer

KW - orbital reconstruction

KW - titanates

UR - http://www.scopus.com/inward/record.url?scp=85144394477&partnerID=8YFLogxK

U2 - 10.1088/1361-648X/aca4b3

DO - 10.1088/1361-648X/aca4b3

M3 - Article

C2 - 36410040

AN - SCOPUS:85144394477

SN - 0953-8984

VL - 35

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 5

M1 - 055601

ER -