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Magnetic and electric properties of the multiferroic orthorhombic RMnO3 family

Applicant Staub Urs
Number 159220
Funding scheme Project funding (Div. I-III)
Research institution Synchrotron Lichtquelle Schweiz Paul Scherrer Institut
Institution of higher education Paul Scherrer Institute - PSI
Main discipline Condensed Matter Physics
Start/End 01.09.2015 - 31.07.2016
Approved amount 53'592.00
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Keywords (2)

ordering phenomena; multiferroics

Lay Summary (German)

Lead
In diesem Gesuch soll die magnetoelektrische Wechselwirkung in multiferroischen Materialien untersucht werden. Das mikroskopische Verständnis dieser Wechselwirkung erlaubt es gezielter Materialien zu finden, die z.B. eine Datenspeicherung mit elektrischen Feldern ermöglichen, um damit Materialien auf denen Information mit magnetischen Feldern geschrieben wird, zu ersetzen.
Lay summary

Das fundamentale Verständnis der mikroskopischen Wechselwirkung zwischen Ferroelektrizität und Magnetismus ist von grosser Wichtigkeit. Diese magnetoelektrische Wechselwirkung ist von besonderem Interesse in Multiferroika. Dies sind Materialien, die sowohl magnetisch wie auch ferroelektrisch sind. Folgende Fragen sollen in diesem Projekt angegangen werden:

Was geschieht auf atomarer Ebene?

Wie koppeln die magnetische Momente mit den elektronischen Zuständen?

Können wir den Magnetismus manipulieren mit elektrischen Feldern und umgekehrt?

 

Besonders interessant ist die ReMnO3 Familie von Materialien, die grosse Kopplungseffekte zeigen. Kürzlich ist es gelungen, diese Materialien in der orthorhombischen Phase als dünne Schichten herzustellen. Diese Filme erlauben uns nun die magnetische Struktur und dessen Veränderungen im elektrischen Feld besser zu untersuchen. Für diese Untersuchungen verwenden wir resonant elastische X-ray Streuung, die an der Synchrotron Lichtquelle Schweiz zu Verfügung steht. Mit dieser Methode kann die Orientierung und Ordnung der atomaren Spins und die der Orbitale direkt bestimmt werden und wir können deren Verhalten im elektrischen Feld direkt studieren. Dies gibt uns Aufschluss über die mikroskopische Ursache der magnetoelektrischen Wechselwirkung.

 

Direct link to Lay Summary Last update: 01.06.2015

Responsible applicant and co-applicants

Employees

Publications

Publication
Dynamic pathway of the photoinduced phase transition of TbMnO3
Bothschafter Elisabeth M., Abreu Elsa, Rettig Laurenz, Kubacka Teresa, Parchenko Sergii, Porer Michael, Dornes Christian, Windsor Yoav William, Ramakrishnan Mahesh, Alberca Aurora, Manz Sebastian, Saari Jonathan, Koohpayeh Seyed M., Fiebig Manfred, Forrest Thomas, Werner Philipp, Dhesi Sarnjeet S., Johnson Steven L., Staub Urs (2017), Dynamic pathway of the photoinduced phase transition of TbMnO3, in Physical Review B, 96(18), 184414-184414.
Interplay of Fe and Tm moments through the spin-reorientation transition in TmFeO3
Staub U., Rettig L., Bothschafter E. M., Windsor Y. W., Ramakrishnan M., Avula S. R. V., Dreiser J., Piamonteze C., Scagnoli V., Mukherjee S., Niedermayer C., Medarde M., Pomjakushina E. (2017), Interplay of Fe and Tm moments through the spin-reorientation transition in TmFeO3, in Physical Review B, 96(17), 174408-174408.
Magnetic properties of strained multiferroic CoCr2O4 : A soft x-ray study
Windsor Y. W., Piamonteze C., Ramakrishnan M., Scaramucci A., Rettig L., Huever J. A., Bothschafter E. M., Bingham N. S., Alberca A., Avula S. R. V., Noheda B., Staub U. (2017), Magnetic properties of strained multiferroic CoCr2O4 : A soft x-ray study, in Physical Review B, 95(22), 224413-224413.
Crystal symmetry lowering in chiral multiferroic Ba3TaFe3Si2O14 observed by x-ray magnetic scattering
Ramakrishnan M., Joly Y., Windsor Y. W., Rettig L., Alberca A., Bothschafter E. M., Lejay P., Ballou R., Simonet V., Scagnoli V., Staub U. (2017), Crystal symmetry lowering in chiral multiferroic Ba3TaFe3Si2O14 observed by x-ray magnetic scattering, in Physical Review B, 95(20), 205145-205145.
Ferromagnetic and antiferromagnetic orders of a phase-separated manganite probed throughout the B−T phase diagram
Windsor Y. W., Tanaka Yoshikazu, Scagnoli V., Garganourakis M., de Souza R. A., Medarde M., Cheong S.-W., Staub U. (2016), Ferromagnetic and antiferromagnetic orders of a phase-separated manganite probed throughout the B−T phase diagram, in Physical Review B, 94(21), 214412-214412.
Multiferroic properties of uniaxially compressed orthorhombic HoMnO3 thin films
Shimamoto K., Windsor Y. W., Hu Y., Ramakrishnan M., Alberca A., Bothschafter E. M., Rettig L., Lippert Th., Staub U., Schneider C. W. (2016), Multiferroic properties of uniaxially compressed orthorhombic HoMnO3 thin films, in APPLIED PHYSICS LETTERS, 108(11), 112904.
Element-specific magnetization redistribution at YBa2Cu3O7/La2/3Ca1/3MnO3 interfaces
Alberca A., Uribe-Laverde M. A., Windsor Y. W., Ramakrishnan M., Rettig L., Marozau I., Tonnerre J-M., Stahn J., Staub U., Bernhard C. (2015), Element-specific magnetization redistribution at YBa2Cu3O7/La2/3Ca1/3MnO3 interfaces, in PHYSICAL REVIEW B, 92(17), 174415.
Interplay between magnetic order at Mn and Tm sites alongside the structural distortion in multiferroic films of o-TmMnO3
Windsor Y. W., Ramakrishnan M., Rettig L., Alberca A., Bothschafter E. M., Staub U., Shimamoto K., Hu Y., Lippert T., Schneider C. W. (2015), Interplay between magnetic order at Mn and Tm sites alongside the structural distortion in multiferroic films of o-TmMnO3, in PHYSICAL REVIEW B, 91(23), 235144.
Magnetic order dynamics in optically excited multiferroic TbMnO3
Johnson J. A., Kubacka T., Hoffmann M. C., Vicario C., de Jong S., Beaud P., Gruebel S., Huang S. -W., Huber L., Windsor Y. W., Bothschafter E. M., Rettig L., Ramakrishnan M., Alberca A., Patthey L., Chuang Y. -D., Turner J. J., Dakovski G. L., Lee W. -S., Minitti M. P., Schlotter W., Moore R. G., Hauri C. P., Koohpayeh S. M., Scagnoli V. (2015), Magnetic order dynamics in optically excited multiferroic TbMnO3, in PHYSICAL REVIEW B, 92(18), 184429.

Collaboration

Group / person Country
Types of collaboration
S. L. Johnson, ETHZ Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
S. Lovesey, Diamond Light Source Diamond House Oxfordshore OX11 0QX Great Britain and Northern Ireland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
C. Niedermayer, PSI Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
C. Schneider, PSI Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
22nd workshop on oxide electronics Poster Multiferroic properties of o-REMnO3 films controlled by strain: an X-ray diffraction study 07.11.2015 Paris, France Windsor Yoav William;


Associated projects

Number Title Start Funding scheme
137657 Magnetic and electric properties of the multiferroic orthorhombic RMnO3 family 01.08.2012 Project funding (Div. I-III)
137657 Magnetic and electric properties of the multiferroic orthorhombic RMnO3 family 01.08.2012 Project funding (Div. I-III)

Abstract

This proposal is an extension request for a 4th year to complete the study on the effect of electric fields on the electronic and magnetic properties of magnetic oxides, and to correspondingly complete the Phd thesis of Will Windsor. The project concentrates on magnetic oxides, which are magnetoelectric or multiferroic, with specific focus on perovskite manganites of type REMnO3 with orthorhombic symmetry (o-REMnO3). The idea is to apply electric fields and study the magnetic and electronic properties on the atomic level of bulk materials and compare them with epitaxially grown films. The main experimental technique used is resonant x-ray diffraction (RXD), predominantly in the soft x-ray regime. This is a challenging and still rapidly developing experimental technique that provides direct access to the magnetic and electronic states of the valence shells of 3d and 4f materials. Within the current project, which has run for just over 2 years to date, we have conducted detailed investigations of epitaxial films of the o-REMnO3 family and we have completed work on related manganite systems. Due to initial delays (e.g. in obtaining sufficiently high quality epitaxial films), the work of Will Windsor was extended epitaxial films of the multiferroic Spinel system CoCr2O4 and to the LPCMO manganite system, to guarantee success of the project. In the meantime, a sufficient amount of high quality films was obtained from our colleagues (C. Schneider at PSI), and experiments were successful. It is therefore already clear that the project needs an extension to be completed. The results obtained on o-LuMnO3 are most likely accepted in PRL (3rd referee round) and can be found already on the archive. We also expect to successfully complete the work on LPCMO and on other REMnO3 systems (studying the interplay between rare earth and Mn magnetism). However, the most important part of this work, namely the effect of applying electric fields on magnetism, has not yet been completed. Clearly the previous work on understanding the multiferroic properties of the films was mandatory for the electric field work to be achieved, but means that this cannot be completed within the initial period. The same is true for the Spinel system. We therefore ask here for the extension of a year to be able to complete these studies.
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