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Structural and magneto-electric properties of strained REMnO3 films

Applicant Niedermayer Christof
Number 147049
Funding scheme Project funding (Div. I-III)
Research institution Paul Scherrer Institut
Institution of higher education Paul Scherrer Institute - PSI
Main discipline Condensed Matter Physics
Start/End 01.11.2013 - 31.10.2017
Approved amount 254'582.00
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Keywords (5)

Thin films; Multiferroics; Neutron Scattering; Interfaces; Strain

Lay Summary (German)

Lead
Magnetismus und Ferroelektriziät kommen normalerweise nicht gleichzeitig in einem Material vor. Magnetismus benötigt freie Elektronen mit einem geordneten magnetischen Moment, für Ferroelektrizität ist eine Ladungstrennung erforderlich, um eine elektrische Polarisation zu erzeugen. Werden beide Eigenschaften in einem Material kombiniert, dann lässt sich durch das Anlegen eines Magnetfeldes die elektrische Polarisierung und durch das Anlegen einer Spannung das magnetische Moment beeinflussen.
Lay summary

Dieser magnetoelektrische Effekt ist technologisch nutzbar, um zum Beispiel magnetische Information elektrisch zu schreiben oder stromlose Magnetfeldsensoren auszulesen. Da er in der Regel aber sehr schwach ist, suchen wir  Materialien mit einer stärkeren Kopplung zwischen Magnetismus und Ferrolektrizität. Epitaktisch gewachsene Seltenenerd-Manganat- Filme stellen  eine vielversprechende Materialklasse dar. In ihr entsteht der Magnetismus über das Ordnen des Manganmoments und diese Ordnung verursacht eine strukturelle Verzerrung in der Kristallstruktur, die wiederum eine elektrische Polarisation nach sich zieht. Die strukturell bedingte Verknüpfung zwischen Magnetismus und Ferroelektrizität resultiert in einer starken magnetoelektrischen Kopplung mit einer großen elektrischen Polarisation.

Mit Neutronenstreuexperimenten  können wir sowohl die magnetische Struktur aufklären als auch ein magnetisches Tiefenprofil des Filmes gewinnen. Von besonderem Interesse ist dabei der Einfluss wachstumsinduzierter Verspannungen an der Substrat-Film Grenzfläche auf die magnetischen Eigenschaften. Unsere bisherigen Messungen zeigen, dass diese Verspannungen zum gleichzeitigen Auftreten verschiedener Ordnungsparameter führen: Im ferrolektrischen Film geht eine ferromagnetische Schicht an der Grenzfläche allmählich über in eine  antiferromagnetisch geordnete Struktur. Da die verschiedenen Ordnungen stark miteinander gekoppelt sind, besteht ein großes Potential im Hinblick auf die technische Nutzung dieser Materialien.

Direct link to Lay Summary Last update: 15.11.2013

Responsible applicant and co-applicants

Employees

Name Institute

Publications

Publication
Unique coexistence of incommensurate and commensurate magnetic order in TbMnO3 strained films
Mukherjee S., Shimamoto K., Schneider C. W., Niedermayer C. (2019), Unique coexistence of incommensurate and commensurate magnetic order in TbMnO3 strained films, in Physical Review Materials, 3(10), 104412-104412.
Unique coexistence of incommensurate and commensurate magnetic order in TbMnO3 strained films
Mukherjee S., Shimamoto K., Schneider C. W., Niedermayer C. (2019), Unique coexistence of incommensurate and commensurate magnetic order in TbMnO3 strained films, in Physical Review Materials, 3(10), 104412-104412.
Multiferroic phase diagram of E -type RMnO3 films studied by neutron and x-ray diffraction
Mukherjee Saumya, Shimamoto Kenta, Windsor Yoav William, Ramakrishnan Mahesh, Parchenko Sergii, Staub Urs, Chapon Laurent, Ouladdiaf Bachir, Medarde Marisa, Shang Tian, Müller Elisabeth A., Kenzelmann Michel, Lippert Thomas, Schneider Christof W., Niedermayer Christof (2018), Multiferroic phase diagram of E -type RMnO3 films studied by neutron and x-ray diffraction, in Physical Review B, 98(17), 174416-174416.
Tuning the multiferroic mechanisms of TbMnO3 by epitaxial strain
Kenta Shimamoto, Saumya Mukherjee, Sebastian Manz, Jonathan S. White, Morgan Trassin, Michel Kenzelmann, Laurent Chapon, Thomas Lippert, Manfred Fiebig, Christof W. Schneider, Christof Niedermayer (2017), Tuning the multiferroic mechanisms of TbMnO3 by epitaxial strain, in Scientific Reports, 7, 44753-1-44753-9.
E -type noncollinear magnetic ordering in multiferroic o−LuMnO3
Mukherjee Saumya, Dönni Andreas, Nakajima Taro, Mitsuda Setsuo, Tachibana Makoto, Kitazawa Hideaki, Pomjakushin Vladimir, Keller Lukas, Niedermayer Christof, Scaramucci Andrea, Kenzelmann Michel (2017), E -type noncollinear magnetic ordering in multiferroic o−LuMnO3, in Physical Review B, 95(10), 104412-104412.
Interplay of Fe and Tm moments through the spin-reorientation transition in TmFeO3
U. Staub, L. Rettig, E. M. Bothschafter, Y. W. Windsor, M. Ramakrishnan, S. R. V. Avula, J. Dreiser, C. Piamonteze, V. Scagnoli, S. Mukherjee, C. Niedermayer, M. Medarde, E. Pomjakushina (2017), Interplay of Fe and Tm moments through the spin-reorientation transition in TmFeO3, in Physical Review B, 96(17), 174408-1-174408-11.
Magnetoelectric multiferroics hold great promise for electrical control of magnetism or magnetic control of ferroelectricity. However, single phase ferroelectric materials with a sizeable ferromagneti
Saumya Mukherjee, Andreas Dönni, Taro Nakajima, Setsuo Mitsuda, Makoto Tachibana, Hideaki Kitazawa, Vladimir Pomjakushin, Lukas Keller, Christof Niedermayer, Andrea Scaramucci, Michel Kenzelmann (2017), Magnetoelectric multiferroics hold great promise for electrical control of magnetism or magnetic control of ferroelectricity. However, single phase ferroelectric materials with a sizeable ferromagneti, in Phzsical Review B, 95(10), 104412-1-104412-9.
Single-axis-dependent structural and multiferroic properties of orthorhombic RMnO3(R = Gd–Lu)
Kenta Shimamoto, Saumya Mukherjee, Nicholas S. Bingham, Anna K. Suszka, Thomas Lippert, Christof Niedermayer, Christof W. Schneider (2017), Single-axis-dependent structural and multiferroic properties of orthorhombic RMnO3(R = Gd–Lu), in Physical Review B, 95(18), 184105-1-184105-9.
Coexisting multiple order parameters in single-layer LuMnO3 films
C.W. Schneider et al., Saumya Mukherjee, Kenta Shimamoto, Jonathan S. White, Matthias Bator, Michel Kenzelmann, Thomas Lippert, Christof Niedermayer (2016), Coexisting multiple order parameters in single-layer LuMnO3 films, in Physical Review B, 94(5), 054423-1-054423-6.
Strain-Induced Ferromagnetism in Antiferromagnetic LuMnO3 Thin Films
Jonathan White, M. Bator, Y. Hu, H. Luetkens, J. Stahn, S. Capelli, S. Das, M. Döbeli, Th. Lippert, V. K. Malik, J. Martynczuk, A. Wokaun, M. Kenzelmann, Ch. Niedermayer, C.W. Schneider (2013), Strain-Induced Ferromagnetism in Antiferromagnetic LuMnO3 Thin Films, in Physical Review Letters, 111(3), 037201-1-037201-5.

Collaboration

Group / person Country
Types of collaboration
Manfred Fiebig, ETHZ Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
Christian Bernhard, Univ. Fribourg Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
Jochen Stahn, PSI/LNS Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Urs Staub, PSI/SLS Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Michel Kenzelmann, PSI / LDM Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Hubertus Luettkens, PSI/LMU 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
International Conference on Strongly Correlated Electron Systems Poster E-type non-collinear magnetic ordering in multiferroic o-LuMnO3. 17.07.2017 Prag, Czech Republic Mukherjee Saumya; Schneider Christof; Niedermayer Christof;
International Conference on Strongly Correlated Electron Systems, Poster Emergence of novel multiferroicity in epitaxially strained RMnO3 (R = Gd-Lu) thin films 17.07.2017 Prag, Czech Republic Niedermayer Christof; Schneider Christof;
International conference on neutron scattering Talk given at a conference Emergence of novel multiferroicity in epitaxially strained RMnO3 (R = Gd - Lu) thin films 09.07.2017 Daejeon, Korean Republic (South Korea) Mukherjee Saumya; Niedermayer Christof; Schneider Christof;
61st Annual Conference on Magnetism and Magnetic Materials Talk given at a conference Strain driven E-type commensurability in o-TbMnO3 thin films under ambient pressure 31.10.2016 New Orleans, United States of America Niedermayer Christof; Mukherjee Saumya; Schneider Christof;
EMRS Fall Meeting Talk given at a conference Tuning the multiferroic mechanisms of TbMnO3 by epitaxial straincontributed talk 19.09.2016 Warschau, Poland Schneider Christof; Niedermayer Christof; Mukherjee Saumya;
6th European Conference on neutron scattering Poster Polarised neutron studies of strain induced magnetism in multiferroic o-LuMnO3 thin films. 30.08.2015 Zaragoza, Spain Mukherjee Saumya; Schneider Christof; Niedermayer Christof;
Swiss Physical Society Annual Meeting Poster Strain induced coupling between ferromagnetism and ferroelectricity of multiferroic o-LuMnO3 thin films. 30.06.2014 Fribourg, Switzerland Mukherjee Saumya; Schneider Christof; Niedermayer Christof;
International Coference on Muon Spin Rotation Poster Strain induced coupling between ferromagnetism and ferroelectricity in LuMnO3 thin films 01.06.2014 Grindelwald, Switzerland Schneider Christof; Mukherjee Saumya; Niedermayer Christof;
Kolloqium Individual talk Dichotomy of scales: Thin film and interface studies at muon and neutron facilities 14.05.2014 Universität Konstanz, Germany Niedermayer Christof;


Communication with the public

Communication Title Media Place Year
Talks/events/exhibitions Grosse Geräte und kleinste Teilchen - Ein Blick ins Innere der Materie German-speaking Switzerland 2014

Awards

Title Year
Ausserplanmässige Professur an der Universität Konstanz für Christof Niedermayer 2014

Associated projects

Number Title Start Funding scheme
169393 Coexisting multiple orders in oxide thin films 01.11.2017 Project funding (Div. I-III)
150713 ZEBRA - a new neutron single-crystal diffractometer optimized for small samples and extreme conditions 01.11.2014 R'EQUIP
152913 Strain-tuned ferroic functionality in CuO at elevated temperatures 01.01.2015 Project funding (Div. I-III)

Abstract

The aim of this project is the growth of orthorhombic ReMnO3 thin films (Re: Tb, Ho, Lu, Tm) with multiferroic properties and the targeted manipulation of their magneto-electric properties by controlling the epitaxial strain and tuning of the physical properties by application of electric and magnetic fields. The demonstration of a controlled switching between different ground states forms the basis for the use of multiferroic materials in device applications. We will focus on multiferroic oxides, for which ferroelectricity arises directly from magnetic order and these so-called magnetically-induced ferroelectrics provide the most direct coupling between magnetic order and ferroelectricity. From a fundamental point of view the coupled order parameters will result in competing interactions, which are known to be beneficial for the emergence of novel phenomena and behaviour. The proximity of such materials to quantum critical points makes them also highly susceptible to perturbations. Besides the enormous scientific interest in the physical properties of multiferroic thin films, their coupled magnetic and ferroelectric order parameters can be exploited to develop magneto-electric devices, such as switches, magnetic field sensors and memory devices or spin valves with electric field tuneable functions. High quality orthorhombic ReMnO3 thin films will be used to study the multiferroic properties at the large scale PSI facilities. The main focus is on neutron diffraction and reflectivity experiments to investigate in detail the magnetic ground state of the multiferroic thin films. A thorough understanding of the ground state properties is the basis for a controlled tuning of the magneto-electric properties using electric and magnetic fields.The success of the project depends on two key factors: a) the ability to grow high quality thin films and b) the availability of sensitive experimental techniques to study their structural and magnetic properties. Through the immense advancement of epitaxial growth techniques, metal oxide thin films can be grown with an extremely high crystalline perfection, while the large scale facilities at the Paul Scherrer Institute provide a unique scientific environment for in-depth studies of structural and magnetic properties of these materials. The collaboration between the Materials group of the General Energy Research Department (ENE) and experimental groups at the Department for Research with Neutrons and Muons (NUM) thus combines two main areas of research at the Paul Scherrer Institut.
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