Magnetic frustration in double perovskite LaSrNiRuO6

Xuedong Ou; Fengren Fan; Xiangtuo Chen; Tao Li; Lixiang Jiang; Alessandro Stroppa; Xiaoping Ouyang; Hua Wu

doi:10.1209/0295-5075/123/57003

Magnetic frustration in double perovskite LaSrNiRuO₆

Xuedong Ou
, Fengren Fan
, Xiangtuo Chen
, Tao Li
, Lixiang Jiang
, Alessandro Stroppa
, Xiaoping Ouyang
, Hua Wu

China Aerospace Science and Technology Corporation
Fudan University
Grande Voie des Vignes
National Research Council of Italy
XiangTan University
Collaborative Innovation Center of Advanced Microstructures

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

4 Scopus citations

Abstract

Using density functional calculations, we investigated the electronic structure and magnetism of the newly synthesized antiferromagnetic (AF) double perovskite LaSrNiRuO₆. Our results show that the first nearest-neighbouring (1NN) Ni²(t_2g ⁶e_g ², S = 1) and ions have a ferromagnetic (FM) coupling. However, we find that LaSrNiRuO₆ displays long-range magnetic interactions: the second nearest-neighbouring (2NN) Ru-Ru AF coupling and the 2NN Ni-Ni AF coupling are both stronger than the 1NN Ni-Ru FM coupling, and the third nearest-neighbouring (3NN) Ru-Ru and Ni-Ni AF couplings are also considerably large. Thus, the leading Ru-Ru and Ni-Ni AF interactions in the face-centered-cubic (fcc) sublattices give rise to a magnetic frustration, and eventually determine a distorted low-temperature AF order. This work addresses the importance of long-range magnetic interactions in determining the exotic magnetic structure of double perovskites.

Original language	English
Article number	57003
Journal	EPL
Volume	123
Issue number	5
DOIs	https://doi.org/10.1209/0295-5075/123/57003
State	Published - Sep 2018
Externally published	Yes

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@article{0d44e8aadf0c48869b11bf9e175cbb08,

title = "Magnetic frustration in double perovskite LaSrNiRuO6 ",

abstract = "Using density functional calculations, we investigated the electronic structure and magnetism of the newly synthesized antiferromagnetic (AF) double perovskite LaSrNiRuO6. Our results show that the first nearest-neighbouring (1NN) Ni2(t2g 6eg 2, S = 1) and ions have a ferromagnetic (FM) coupling. However, we find that LaSrNiRuO6 displays long-range magnetic interactions: the second nearest-neighbouring (2NN) Ru-Ru AF coupling and the 2NN Ni-Ni AF coupling are both stronger than the 1NN Ni-Ru FM coupling, and the third nearest-neighbouring (3NN) Ru-Ru and Ni-Ni AF couplings are also considerably large. Thus, the leading Ru-Ru and Ni-Ni AF interactions in the face-centered-cubic (fcc) sublattices give rise to a magnetic frustration, and eventually determine a distorted low-temperature AF order. This work addresses the importance of long-range magnetic interactions in determining the exotic magnetic structure of double perovskites.",

author = "Xuedong Ou and Fengren Fan and Xiangtuo Chen and Tao Li and Lixiang Jiang and Alessandro Stroppa and Xiaoping Ouyang and Hua Wu",

note = "Publisher Copyright: {\textcopyright} CopyrightEPLA, 2018.",

year = "2018",

month = sep,

doi = "10.1209/0295-5075/123/57003",

language = "英语",

volume = "123",

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TY - JOUR

T1 - Magnetic frustration in double perovskite LaSrNiRuO6

AU - Ou, Xuedong

AU - Fan, Fengren

AU - Chen, Xiangtuo

AU - Li, Tao

AU - Jiang, Lixiang

AU - Stroppa, Alessandro

AU - Ouyang, Xiaoping

AU - Wu, Hua

PY - 2018/9

Y1 - 2018/9

N2 - Using density functional calculations, we investigated the electronic structure and magnetism of the newly synthesized antiferromagnetic (AF) double perovskite LaSrNiRuO6. Our results show that the first nearest-neighbouring (1NN) Ni2(t2g 6eg 2, S = 1) and ions have a ferromagnetic (FM) coupling. However, we find that LaSrNiRuO6 displays long-range magnetic interactions: the second nearest-neighbouring (2NN) Ru-Ru AF coupling and the 2NN Ni-Ni AF coupling are both stronger than the 1NN Ni-Ru FM coupling, and the third nearest-neighbouring (3NN) Ru-Ru and Ni-Ni AF couplings are also considerably large. Thus, the leading Ru-Ru and Ni-Ni AF interactions in the face-centered-cubic (fcc) sublattices give rise to a magnetic frustration, and eventually determine a distorted low-temperature AF order. This work addresses the importance of long-range magnetic interactions in determining the exotic magnetic structure of double perovskites.

AB - Using density functional calculations, we investigated the electronic structure and magnetism of the newly synthesized antiferromagnetic (AF) double perovskite LaSrNiRuO6. Our results show that the first nearest-neighbouring (1NN) Ni2(t2g 6eg 2, S = 1) and ions have a ferromagnetic (FM) coupling. However, we find that LaSrNiRuO6 displays long-range magnetic interactions: the second nearest-neighbouring (2NN) Ru-Ru AF coupling and the 2NN Ni-Ni AF coupling are both stronger than the 1NN Ni-Ru FM coupling, and the third nearest-neighbouring (3NN) Ru-Ru and Ni-Ni AF couplings are also considerably large. Thus, the leading Ru-Ru and Ni-Ni AF interactions in the face-centered-cubic (fcc) sublattices give rise to a magnetic frustration, and eventually determine a distorted low-temperature AF order. This work addresses the importance of long-range magnetic interactions in determining the exotic magnetic structure of double perovskites.

UR - https://www.scopus.com/pages/publications/85054653915

U2 - 10.1209/0295-5075/123/57003

DO - 10.1209/0295-5075/123/57003

M3 - 文章

AN - SCOPUS:85054653915

SN - 0295-5075

VL - 123

JO - EPL

JF - EPL

IS - 5

M1 - 57003

ER -

Magnetic frustration in double perovskite LaSrNiRuO₆

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