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A ferromagnetic insulating (FM-I) state in Pr0.75Ca0.25MnO3 has been studied by neutron scattering experiment and theoretical calculation. The insulating behavior is robust against an external magnetic field, and is ascribed to neither the…

Strongly Correlated Electrons · Physics 2009-11-10 R. Kajimoto , H. Mochizuki , H. Yoshizawa , S. Okamoto , S. Ishihara

Ferromagnetic insulators play a crucial role in the development of low-dissipation quantum magnetic devices for spintronics. Epitaxial LaCoO3 thin film is a prominent ferromagnetic insulator, in which the robust ferromagnetic ordering…

Materials Science · Physics 2022-06-17 Dongwon Shin , Sangmoon Yoon , Sehwan Song , Sungkyun Park , Ho Nyung Lee , Woo Seok Choi

We investigated the nature of transport and magnetic properties in SrIr0.5Ru0.5O3, (SIRO) which has characteristics intermediate between a correlated non-Fermi liquid state and an itinerant Fermi liquid state, by growing perovskite thin…

Strongly Correlated Electrons · Physics 2015-09-11 Abhijit Biswas , Yong Woo Lee , Sang Woo Kim , Yoon Hee Jeong

We report magnetic properties of epitaxial thin films of the itinerant ferromagnet SrRuO3 deposited on the cleaved ab surface of the spin-triplet superconductor Sr2RuO4. The films exhibit ferromagnetic transition near 160 K as in the bulk…

Strongly Correlated Electrons · Physics 2015-08-10 Yusuke Sugimoto , Muhammad Shahbaz Anwar , Seung Ran Lee , Yeong Jae Shin , Shingo Yonezawa , Tae Won Noh , Yoshiteru Maeno

Structural study of orbital-ordered manganite thin films has been conducted using synchrotron radiation, and a ground state electronic phase diagram is made. The lattice parameters of four manganite thin films, Nd0.5Sr0.5MnO3 (NSMO) or…

Strongly Correlated Electrons · Physics 2011-03-08 Y. Wakabayashi , D. Bizen , Y. Kubo , H. Nakao , Y. Murakami , M. Nakamura , Y. Ogimoto , K. Miyano , H. Sawa

By systematic first-principles calculations, we study the electronic structure and magnetic property of SrCrO$_3$. Our results suggest that SrCrO$_3$ is a weakly correlated antiferromagnetic (AF) metal, a very rare situation in…

Materials Science · Physics 2010-07-20 Guangtao Wang , Zhi Li , C. Q. Jin , Zhong Fang

The 5$d$ based SrIrO$_3$ represents prototype example of nonmagnetic correlated metal which mainly originates from a combined effect of spin-orbit coupling, lattice dimensionality and crystal structure. Therefore, tuning of these parameters…

Strongly Correlated Electrons · Physics 2021-02-24 Rachna Chaurasia , K. Asokan , Kranti Kumar , A. K. Pramanik

We have investigated the electronic and magnetic properties of perovskite SrRu1-xIrxO3 thin films grown by pulsed laser deposition on atomically-flat (001) SrTiO3 substrates. SrRuO3 has the properties of a ferromagnetic metal with Curie…

Strongly Correlated Electrons · Physics 2015-09-11 Abhijit Biswas , Yong Woo Lee , Yoon Hee Jeong

Magnetic and magnetotransport properties of oriented polycrystalline Pr0.58Ca0.42MnO3 thin films prepared in flowing oxygen and air ambient has been investigated. The magnetic ground state of both the films is a frozen cluster glass. In the…

Materials Science · Physics 2014-08-14 Vasudha Agarwal , P. K. Siwach , G. D. Varma , V. P. S. Awana , A. K. Srivastava , H. K. Singh

The structural, magnetic and dielectric properties have been investigated in 3$d$-5$d$ based double perovskite Sr$_2$FeIrO$_6$ thin films deposited by pulse laser deposition technique. To understand the effect of strain, epitaxial films are…

Strongly Correlated Electrons · Physics 2020-12-02 K. C. Kharkwal , Roshan Kumar Patel , K. Asokan , A. K. Pramanik

Ferromagnetic insulator thin films can convey information by spin waves, avoiding charge displacement and Eddy current losses. The sparsity of high-temperature insulating ferromagnetic materials hinders the development of spin wave based…

First-principles calculations of the epitaxial-strain phase diagram of perovskite SrCoO$_{3}$ are presented. Through combination of the large spin-phonon coupling with polarization-strain coupling and coupling of the band gap to the polar…

Materials Science · Physics 2012-09-10 Jun Hee Lee , Karin M. Rabe

This paper shows that the oxygen vacancies observed experimentally in thin films of LaCoO3 subject to tensile strain are thermodynamically stable according to ab initio calculations. By using DFT calculations, we show that oxygen vacancies…

Materials Science · Physics 2017-10-11 Adolfo O Fumega , Victor Pardo

The enigma of the emergent ferromagnetic state in tensile-strained LaCoO3 thin films remains to be explored because of the lack of a well agreed explanation. The direct magnetic imaging technique using a low-temperature magnetic force…

Low-dimensional quantum materials that remain strongly ferromagnetic down to mono layer thickness are highly desired for spintronic applications. Although oxide materials are important candidates for next generation of spintronic,…

We have investigated electronic and magnetic properties of ultrathin SrRuO$_{3}$ (SRO) film grown on (111) SrTiO$_{3}$ substrate using the {\it ab initio} electronic structure calculations. Ru-terminated SRO (111) film suffers from strong…

Materials Science · Physics 2016-01-19 Bongjae Kim , B. I. Min

We calculate the properties of the 4$d$ ferromagnet SrRuO$_3$ in bulk and thin film form with the aim of understanding the experimentally observed metal to insulator transition at reduced thickness. Although the spatial extent of the 4$d$…

Materials Science · Physics 2008-10-08 James M. Rondinelli , Nuala M. Caffrey , Stefano Sanvito , Nicola A. Spaldin

TbMnO$_{3}$ films have been grown under compressive strain on (001)-oriented SrTiO$_{3}$ crystals. They have an orthorhombic structure and display the (001) orientation. With increasing thickness, the structure evolves from a more symmetric…

We report on a fundamental thickness limit of the itinerant ferromagnetic oxide SrRuO$_3$ that might arise from the orbital-selective quantum confinement effects. Experimentally, SrRuO$_3$ films remain metallic even for a thickness of 2…

Strongly Correlated Electrons · Physics 2011-03-15 Young Jun Chang , Choong H. Kim , S. -H. Phark , Y. S. Kim , J. Yu , T. W. Noh

A large challenge in determining the physics of helimagnetic SrFeO3 is in stabilizing the stoichiometric chemical phase over long enough time scales to conduct extensive measurements. Degradation in SrFeO3 manifests mainly as a crossover…