Towards oxide-based electronics SPIN TO-BE COST Action Towards oxide-based electronics Dr. Fabio Miletto Granozio CNR-SPIN - Italy 73/751114444688C8888

Towards oxide-based electronics

SPIN

TO-BE COST ActionTowards oxide-based electronics

Dr. Fabio Miletto GranozioCNR-SPIN - Italy

73/751114444688C8888Consensus

TotalsD.3D.2D.1C.4C.3C.2C.1B.3B.2B.1CB.1A.4A.3A.2A.1EEP

Full proposal rating 73/75

reference oc-2013-1-15086


SPIN

Why TM oxides? What is special about them?

Over 25 years of relentless and impressing discoveries

A) High Tc superconductivity, B) colossal magnetoresistance, C) half-metallic behaviour, D) record-high dielectric/ferro/pyro/piezoelectric performances, E) multiferroic behaviour, F) resistive switching behaviour, G) giant thermoelectric and magnetocaloric effects, H) giant photoconductivity effects, I) giant ionic conduction, J) catalytic properties (including water splitting), K) field-induced Mott transitions, L) topologically nontrivial behaviour(?), M)….

First “functional” TMO: magnetite (Fe3O4) Bronze age?

TO-BE Transition metal (TM) functional oxides


SPIN

Why functional oxides today?

Scientists are learning now how to:

1) Taylor the TMOs electro-magnetic properties on the base of their chemistry, structure and strain;

2) Control fabrication at an atomic level including the creation of artificial materials;

3) Produce high quality samples suitable for industrial applications

4) Design and implement novel device concepts based on TMO properties

This is the timely moment to shift towards a scientifically and technologically mature phase of research on TMOs in Europe


SPIN

1. Austria

2. Belgium

3. Denmark

4. France

5. Germany

6. Greece

7. Ireland

8. Israel

9. Italy

10. Netherlands

11. Norway

12. Poland

13. Serbia

14. Spain

15. Sweden

16. Switzerland

17. United Kingdom

Participating countries


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WG0 Management (MA)

WG1 Fundam. Understanding (FU)

WGO MA

WG2 GC

WG1 FU

WG3 TA

WG2 Growth Control (GC)

WG3 Towards Applications (TA)

Four Objectives Four Workgoups


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Ideal perovskite structure: e.g.

SrTiO3

“B” site, transition metal atom

B-atom: “electromagnetic character” e.g.:

Ti: ferro- and piezoelectric;

Mn: magnetic, half metal;

Cu: high Tc superconductor

“A” site, rare earth, alcaline earth

A-atom: doping and structural distorsions:

A-atom “too-small”, octahedra distortions,

MI transition, ferro/paramagnetic

transition, charge/orbital

ordering;

A-atoms “too big”, ferroelectricity, piezoelectricity

Background: from perovskites to other functional oxides

Oxygen


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More complex transformations from the originary perovkite structure

Disappearance of the A-site atom.

TiO2 anatase structure (sensing, catalysis, TCO for PV, resistive switching)

Layered structure with ordered O vacancies.YBa2Cu3O7-x high temperature superconductor

(superconducting wires, magnets, SQUIDs, detectors, ultrafast electronics)

Artificial multilayers with taylored functional properties

(SrTiO3)5(LaTiO3) heterostructure


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Basic physical ingredients

Electronic (or “electromagnetic” properties of TMOs):

d-bands of the TM, lying in proximity of the Fermi level.

WG1 Fundamental UnderstandingT1 “Experiments”, T2 “Theory”

•Filling of the different d-bands

•Hierarchy in energy

•Bandwith

•e-e correlations

•e-ph correlations.

•Cations and their valence.

•Octahedra tilts and rotations, layered struct.

•Charge-charge correlations (e.g. intrasite U)

•Spin-spin correlations (e.g. Hund),

•Spin-orbital correlations.


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Basic physical ingredients

The bandwidth if affected by octahedra tilts and rotations, that

misalign the orbitals with respect to each other.

e-e correlations include charge-

charge correlations (e.g. intrasite

U), spin-spin correlations (e.g.

intrasite Hund), orbital correlations

and mixed terms.


SPINWGO MA

WG2 GC

WG1 FU

WG3 TA

WG2 Growth ControlT1 “Large area

growth”Large area PLD Epitaxial SrTiO3 on Si

T2 “Perovskite-on-Si”

Laser plume spectroscopy

Plume spectra and RHEED

T3 “Real-time monitoring


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T1 “Nanoelectronics”

FRAM

WGO MA

WG2 GC

WG1 FU

WG3 TA

T3 “Energy conversion”

WG3 Towards Applications

Non-charge-based FTJ switch

Piezoelectric inkjet print head

T2 “Micro-actuation/sensing

”

Epi-MEMS on Si

Several totally new, “v

isionary” d

evice concepts are also

envisaged for

TMOs

8 order of magnitude increase of ionic

conductivity in strained YSZ

Micro SOFC


SPIN

WGO MA

WG2 GC

WG1 FU

WG3 TA

WG0 Management: building a team for a long term challenge

Where do we stand as a community?

Understanding together our objectives

Define our strategiesDefine directions, move together

Take collective decisions

Form young people, add them to the team

Balance genders, balance opportunities

Set means for internal communication

Promote our activity, inform people

Offer our services, advertise results

Enlarge, upgrade the team

Share information, contacts (databases)


SPINWG0 Management

T1: Internal meetings, conferences, workshops, joint projects.

T2: Dissemination towards external stakeholders and website managements.

T3: ERS careers and training; short term scientific missions (STSM).

T4 Editing of a roadmap on oxide-based technologies.

WGO MA

WG2 GC

WG1 FU

WG3 TA


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Within the TO-BE COST Action, a volume aimed at being the first Techology

Roadmap for Transition Metal Oxides will be edited and published. The

Roadmap will finalize the efforts made by the participants during the Action. It

will allow to:

•Shift research on TMOs from the present curiosity-driven phase towards a

scientifically and technologically mature phase;

•Help understanding, as a community, where we stand, were we should go and

which are the directions;

•Reduce the “cultural mismatch” between industry and public research within

the TMO community.

•Built and structure the ERA of scientists, engineers and ESRs active in the

public and private sector and being interested in the science and technology of

TMOs.

•The roadmap will be mainly authored by members of WG2 and WG3 , while

the editing will be performed within WGO-T4

Why a roadmap on oxides?

2011 and 2012 edition acknowledge the potential of TMOs


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Editing: WGO “Management” Task 4

Volume aimed at becoming the first Techology Roadmap for Transition Metal

Oxides.

Part 1) Thin film growth and nanofabrication techniques for TMOs

Authors: members of WG2 + invited authors

Part 2) Evaluation and assessment of different device concepts

Authors: members of WG3 + invited authors

•Help understanding, as a community, where we stand, were we should go and

which are the directions;

•Reduce the “cultural mismatch” between industry and public research in the

field

•Provide us with a deliverable to hand out when interacting with SMEs,

transnational corporations, policy maker, other scientists

Technology Roadmap for transition metal oxides


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Dissemination plan

Who?W

hat?

Roadmap

Public SocietyPhDs

EU and National policy makers

TO-BE

Researchers and ESRs -TMO expert

Solid state and scientists/engineers

Industry, SMEs, start-ups

Bie

nnia

l confe

rence

Pre

ss rele

ase

s

Socia

l med

ia

Students

TO

-BE

bro

chu

re

Yearly

rep

ort

Pla

in la

ng

uag

e

sum

mary

Op

en

acce

ss

Sta

keh

old

ers’ m

eetin

gs

Peer re

vie

wed

article

s

Tra

inin

g sch

ools

web

site


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I trimester II trimester III trimester IV trimester

MC

annual meeting, GB and ESR check point

SG Annual meeting Web conferencing

T1 WG1,2,3 meetingsSemestral meeting WG1,2,3

Web conference WG1,2,3 meetings

Semestral meeting WG1,2,3

T2 Announcement 2nd Training School online

Checkpoint on website activity, announc. of 2nd biennal conference online

Report on dissemination activities

T3 STMS plan Y3 SEM2 ready

2nd Training SchoolSTMS plan Y4 SEM1 ready

T4 Preliminary draft of the roadmap with editors

Final draft of the roadmap with editors

MC

annual meeting, GB and ESR check point

SG Annual meeting Web conferencing Final report

T1 WG1,2,3 meetingsSemestral meeting WG1,2,3

2nd Biennial Conference, web conference WG1,2,3 meetings

T2 Checkpoint on website activity

Final report on dissemination and outreach activities

T3 STMS plan Y2 SEM2 ready

Final report on ESR activity

T4 Roadmap ready for publication

Roadmap published

Events Milestones DeliverablesYear

3Year

4


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I trimester II trimester III trimester IV trimester

MC

KO meeting, Appointment/confirmation of WG/Tasks structure and chairs

GB and ESRs involvement policy established

SG Appointment of members Web conferencing

T1 Appointment of membersKick-off meeting of WG1,2,3


Semestral meetings of WG1,2,3

T2 Appointment of chair, Website open

Announcement 1st biennal conference online

Announcement 1st Training School online

Report on dissemination and outreach activities

T3 Appointment of chairSTSM plan Y1 SEM2 ready

1st Training School, Start STSM

STMS plan Y2 SEM1 ready

T4 Appointment of chair

Chapter structure of the roadmap approved

MC Annual meeting, GB and ESR check point

SG Annual meeting Web conferencing

T1 1st Biennial Conference, WG1,2,3 meetings




T2 checkpoint on website activity

report on dissemination activities

T3 1st Training School, Start STMS



T4 Structure of the roadmap ready, including chapters

Authors of the roadmap appointed

Year

1Year

2Events Milestones Deliverables


SPIN

Thanks for your attention!

Documents

Towards oxide-based electronics SPIN TO-BE COST Action Towards oxide-based electronics Dr. Fabio Miletto Granozio CNR-SPIN - Italy 73/751114444688C8888