Search Results

You searched for all publications:

with publication states 'Published (Approved)'

Search Again...

These results only include publications that have been reviewed and processed by Diamond Light Source. To also view papers that have not yet been processed click here.

You can use the folder icon under Actions to collate papers as required. You can then click on View Folder in the left-hand navigation to review and/or download your folder.

Exact matches
Related results

2 items found (0 items not approved), displaying all items.1

Instruments / Technical Area	Publication Details	Published	Actions
I10-Beamline for Advanced Dichroism - scattering	Slow equilibrium relaxation in a chiral magnet mediated by topological defects Chenhao Zhang , Yang Wu , Jingyi Chen , Haonan Jin , Jinghui Wang , Raymond Fan , Paul Steadman , Gerrit Van Der Laan , Thorsten Hesjedal , Shilei Zhang Physical Review Letters 133 DOI: 10.1103/PhysRevLett.133.166707 Diamond Proposal Number(s): [34423, 34827] Show Abstract ▼ Abstract: We performed a pump-probe experiment on the chiral magnet Cu2⁢OSeO3 to study the relaxation dynamics of its noncollinear magnetic orders, employing a millisecond magnetic field pulse as the pump and resonant elastic x-ray scattering as the probe. Our findings reveal that the system requires ∼0.2 s to stabilize after the perturbation applied to both the conical and skyrmion lattice phase, which is significantly slower than the typical nanosecond timescale observed in micromagnetics. This prolonged relaxation is attributed to the formation and slow dissipation of local topological defects, such as emergent monopoles. By unveiling the experimental lifetime of these emergent singularities in a noncollinear magnetic system, our study highlights a universal relaxation mechanism in solitonic textures within the slow dynamics regime, offering new insights into topological physics and advanced information storage solutions.	Oct 2024
I10-Beamline for Advanced Dichroism - scattering	Rolling motion of rigid skyrmion crystallites induced by chiral lattice torque Haonan Jin , Jingyi Chen , Gerrit Van Der Laan , Thorsten Hesjedal , Yizhou Liu , Shilei Zhang Nano Letters 68 DOI: 10.1021/acs.nanolett.4c03336 Diamond Proposal Number(s): [32087, 32301] Open Access Show Abstract ▼ Abstract: Magnetic skyrmions are topologically protected spin textures with emergent particle-like behaviors. Their dynamics under external stimuli is of great interest and importance for topological physics and spintronics applications alike. So far, skyrmions are only found to move linearly in response to a linear drive, following the conventional model treating them as isolated quasiparticles. Here, by performing time and spatially resolved resonant elastic X-ray scattering of the insulating chiral magnet Cu2OSeO3, we show that for finite-sized skyrmion crystallites, a purely linear temperature gradient not only propels the skyrmions but also induces continuous rotational motion through a chiral lattice torque. Consequently, a skyrmion crystallite undergoes a rolling motion under a small gradient, while both the rolling speed and the rotational sense can be controlled. Our findings offer a new degree of freedom for manipulating these quasiparticles toward device applications and underscore the fundamental phase difference between the condensed skyrmion lattice and isolated skyrmions.	Sep 2024

Publications Database

Search Results

You searched for all publications:

Search Again...

Subject Areas (check all that apply) select all

Instruments used to collect data (check all that apply) select all

Collaborations involved (check all that apply) select all

Diamond Offline Facilities used

Relevant Technical Areas (check all that apply) select all

Menu for Anonymous User