VI International Workshop Dzyaloshinskii-Moriya Interaction and Exotic Spin Structures

September 6–10, 2021 Vyborg, Russia/online

Preliminary Program

*Moscow time UTC+3:00

Monday. 6 September 2021

9.00

Departure from Gatchina

12.00-13.00

Check in

13.00-14.00

Lunch

14:00-14.15

Opening ceremony

Session: Magnetism and polarized neutron scattering (In memory of Sergey Maleyev).

Chair:

14.15-14.45

Dmitry N. Aristov

NRC KI - PNPI, Gatchina, Russia

Dynamics of the skyrmion crystal in the stereographic projection method.

14.45-15.15

Vladimir P. Mineev

L.D. Landau Institute for Theoretical Physics RAS, Chernogolovka, Russia

Piezomagnetism in ferromagnetic superconductors.

15.15-15.45

Arseny V. Syromyatnikov

NRC KI - PNPI, Gatchina, Russia

New short-wavelength spin excitations in triangular antiferromagnets.

15.45-16.15

Coffee break

16.15-16.45

Igor A. Zobkalo

NRC KI - PNPI, Gatchina, Russia

Unexpected discovery of a new way to control DM interaction.

16.45-17.15

Vladimir V. Runov

NRC KI - PNPI, Gatchina, Russia

Small angle polarized neutron scattering with 3D polarization analysis: marriage of experiment and theory.

17.15-17.45

Oleg I. Utesov

NRC KI - PNPI, Gatchina, Russia

The latest ideas Sergey Maleyev from his manuscripts.

17.45-18.15

Sergey V. Grigoryev

NRC KI - PNPI, Gatchina, Russia

Critical fluctuations beyond the quantum phase transition in Dzyaloshinskii-Moriya helimagnets Mn 1-xFexSi.

18.30

Film about Sergey Maleyev

19.00-22.00

Welcome Party



Tuesday. 7 September 2021

Session: Monoaxial chiral helimagnets.

Chair:

09.30-10.00

Jun-ichiro Kishine
(on-line)

The Open University of Japan, Chiba, Japan

Chirality-induced phonon dispersion in a noncentrosymmetric micropolar crystal.

10.00-10.30

Yoshihiko Togawa
(on-line)

Osaka Prefecture University, Osaka, Japan

Spin selection effect in CrNbS2.

10.30-11.00

Alexander S. Ovchinnikov

Ural Federal University, Ekaterinburg, Russia

Magnetic response of a highly nonlinear soliton lattice in a monoaxial chiral helimagnet.

11.00-11.30

Coffee break

11.30-12.00

Alexey A. Tereshchenko

Ural Federal University, Ekaterinburg, Russia

Investigation of a deformation of the magnetic soliton lattice under tensile stress by lorentz electron microscopy.

12.00-12.30

Vladimir E. Sinitsyn

Ural Federal University, Ekaterinburg, Russia

Discrete magnetic breathers in monoaxial chiral helimagnet.

13.00-14.00

Lunch

14.00-17.00

Excursion through the downtown Vyborg

Wednesday. 8 September 2021

Session: DMI effect on the magnetic structure: part I.

Chair:

09.30-10.00

Viacheslav A. Chizhikov

A.V. Shubnikov Institute of Crystallography RAS, Moscow, Russia

Anisotropy of the magnetic phases of cubic helimagnets.

10.00-10.30

Vladimir A. Sidorov

Vereshchagin Institute of High Pressure Physics RAS, Troitsk, Moscow, Russia

New high-entropy alloys with cubic non-centrosymmetric B20 structure: high pressure synthesis, magnetic properties and ab-initio calculations.

10.30-10.45

Denis Salamatin

Vereshchagin Institute of High Pressure Physics RAS, Troitsk, Moscow, Russia

Pressure influence on the valence and magnetic state of Yb in noncentrosymmetric heavy-fermion YbNiC2.

10.45-11.00

Ravil A. Sadykov

Institute For Nuclear Research RAS, Troitsk, Moscow, Russia

Nonmagnetic high pressure clamp cell for neutron scattering.

11.00-11.30

Coffee break

11.30-12.00

Javier Campo

Instituto de Ciencia de Materiales de Aragón – Universidad de Zaragoza, Zaragoza, Spain

A new magnetic intermediate state, “B-Phase”, in MnSi probed by small-angle neutron scattering and muon spin rotation.

12.00-12.15

Vladimir Krasnorussky

Vereshchagin Institute of High Pressure Physics RAS, Troitsk, Moscow, Russia

Magnetization of MnSi in small fields: magnetic helixes rotation study.

12.15-12.30

Daria O. Skanchenko

NRC KI - PNPI, Gatchina, Russia

Split of the magnetic and crystallographic states in
Fe1-xRhxGe.

12.30-13.00

Anatoly V. Tsvyaschenko

Vereshchagin Institute of High Pressure Physics RAS, Troitsk, Moscow, Russia

Low-temperature transition in non-centrosymmetric CoGe: the influence of the quadrupole transition on the occurrence of an incommensurate phase.

13.00-14.00

Lunch

Session: DMI effect on the magnetic structure: part II.

Chair:

14:00-14.30

Alexander S. Moskvin

Ural Federal University, Ekaterinburg, Russia

Dzyaloshinskii's interaction and exchange-relativistic effects in orthoferrites.

14.30-15.00

Igor V. Golosovsky

NRC KI - PNPI, Gatchina, Russia

Detection of weak distortions of the magnetic structure due to the Dzyaloshinsky-Moriya interaction in multiferroics-ferroborates revealed by the single-crystal neutron diffraction.

15.00-15.30

Alexander V. Bokov

Vereshchagin Institute of High Pressure Physics RAS, Troitsk, Moscow, Russia

Study of positron annihilation lifetime in non-symmetric monosilicides (B20) by 48V source.

15.30-16.00

Coffee break

Session: Spin excitations in helimagnets.

Chair:

16.00-16.30

Alexander I. Smirnov

Kapitza Institute for Physical Problems, RAS, Moscow, Russia

Electron spin resonance of an interacting spinon liquid with uniform Dzyaloshinski-Moriya interaction.

16.30-17.00

Markus Garst

Karlsruhe Institute of Technology, Karlsruhe, Germany

Spin waves of the conical helix in cubic chiral magnets.

17.00-17.15

Kirill A. Pshenichnyi

NRC KI - PNPI, Gatchina, Russia

Non-trivial temperature variation of spin wave dynamics in Co8Zn8Mn4.

17.15-17.45

P. Kizhe

Grad-Kitezh University, Grad-Kitezh, Russia

“Negative” gap in the spin-wave dispersion of the classical invar Fe65Ni35 alloy.

Thursday. 9 September 2021

Session: Exotic spin structures (skyrmions, etc.): part I.

Chair:

09.30-10.00

Oleg I. Utesov

NRC KI - PNPI, Gatchina, Russia

Mean-field approach for square skyrmion lattice in centrosymmetric tetragonal magnets.

10.00-10.30

Max Hirschberger

The University of Tokyo, Tokyo, Japan; RIKEN CEMS, Wako, Japan

Spirals and skyrmions in magnets and their emergent electromagnetism.

10.30-11.00

Jan Masell

The University of Tokyo, Tokyo, Japan; RIKEN CEMS, Wako, Japan

Helitronics and (anti-)skyrmions in magnets with DMI.

11.00-11.30

Coffee break

11.30-12.30

On-line Poster Session

Olga V. Nemytova
(on-line)

M. N. Miheev Institute of Metal Physics Ural Branch of RAS, Ekaterinburg, Russia

Magnetic Properties of Frustrated Ytterbium and Holmium Rare Earth Titanates Doped With Yttrium and Bismuth.

Kyosuke Ishito
(on-line)

Tokyo Institute of Technology, Tokyo, Japan

Chiral phonons in helical single crystal Te by circularly polarized Raman spectroscopy.

Lin Shizeng
(on-line)

Los Alamos National Laboratory, Washington, USA

Topological spin texture in centrosymmetric magnets.

Hirosawa Tomoki
(on-line)

University of Basel, Basel, Switzerland

Magnonic quadrupole topological insulator in antiskyrmion crystals.

13.00-14.00

Lunch

Session: Exotic spin structures (skyrmions, etc.): part II.

Chair:

14.00-14.30

Victor Laliena

Instituto de Ciencia de Materiales de Aragón – Universidad de Zaragoza, Zaragoza, Spain

Magnonic goos-hänchen effect induced by one dimensional solitons.

14.30-15.00

Evgeny V. Altynbaev

NRC KI - PNPI, Gatchina, Russia

Formation of a skyrmion lattice in compounds based on MnGe: experimental results and theoretical background.

15.00-15.30

Victor A. Ukleev

Paul Scherrer Institute, Canton Aargau, Switzerland

Frustration-driven magnetic fluctuations as the origin of the low-temperature skyrmion phase in Co7Zn7Mn6

15.30-16.00

Coffee break

16.00-16.30

Sergii Grytsiuk

Forschungszentrum Jülich, Germany

Spin spiral twist caused by Dzyaloshinskii-Moriya Interaction in B20 chiral magnets.

16.30-17.00

Viktor E. Timofeev

NRC KI - PNPI, Gatchina, Russia; St. Petersburg Electrotechnical University “LETI”, St. Petersburg, Russia

Triple helix versus skyrmion lattice in two-dimensional noncentrosymmetric magnets.

17.00-17.30

Vladimir E. Dmitrienko

A.V. Shubnikov Institute of Crystallography RAS, Moscow, Russia

Exotic spin structure in the pseudogap phase of high-T c superconductor HgBa2CuO4.

17.30-18.00

Andre Cano

Université Grenoble Alpes, Grenoble, France

Nickelate superconductors: an ongoing dialog between theory and experiments.

Friday. 10 September 2021

Session: Thin films and surface effects.

Chair:

09.30-10.00

Giovanni Carlotti

University of Perugia, Perugia, Italy

Non-reciprocity of spin waves propagation in ultratin films, magnonic crystals and nanodots as a tool to quantify the Dzyaloshinskii-Moriya interaction.

10.00-10.30

Dmitry A. Tatarskiy

Institute for physics of microstructures RAS, Nizhny Novgorod, Russia

Effect of interfacial Dzyaloshinskii-Moriya interaction on polarized neutrons reflection.

10.30-11.00

Maxim V. Sapozhnikov

Institute for physics of microstructures RAS, Nizhny Novgorod, Russia

Direct observation of topological Hall effect in Co/Pt nanostructured films.

11.00-11.30

Oleg G. Udalov

Institute for physics of microstructures RAS, Nizhny Novgorod, Russia

Control of DMI with strain in artificial multilayer structures.

11.30-12.00

Coffee break

Session: DMI in molecular magnets.

Chair:

12.00-12.30

Alexey I. Aleksandrov

Institute of Synthetic Polymeric Materials named after N.S. Enikolopov RAS, Moscow, Russia

Multiferroics - polymer composites based on organometallic dimers with the Dzyaloshinsky-Moria effect.

12.30-12.45

Oksana V. Koplak

Institute of Problems of Chemical Physics of RAS, Moscow, Russia

Time resolved FORC analysis and magnetic anisotropy in molecular based magnets.

12.45-13.00

Alexey I. Aleksandrov

Institute of Synthetic Polymeric Materials named after N.S. Enikolopov RAS, Moscow, Russia

Radio-frequency superradiance upon mechanical activation of polymer composites based on organometallic dimers with the Dzyaloshinsky – Moria effect.

13.00-14.00

Lunch

14.00-14.30

Concluding session

14.00-15.00

Check out from the hotel

15.00

Departure to Gatchina