Outputs (18)

Spin dynamics in bulk MnNiGa and Mn1.4Pt0.9Pd0.1Sn investigated by muon spin relaxation (2021)
Journal Article
Wilson, M., Hicken, T., Gomilšek, M., Štefančič, A., Balakrishnan, G., Loudon, J., Twitchett-Harrison, A., Pratt, F., Telling, M., & Lancaster, T. (2021). Spin dynamics in bulk MnNiGa and Mn1.4Pt0.9Pd0.1Sn investigated by muon spin relaxation. Physical Review B, 104(13), Article 134414. https://doi.org/10.1103/physrevb.104.134414

Martin Gleghorn Repository Coordinator Durham University | University Library and Collections | Bill Bryson Library | Stockton Road | Durham | DH1 3LY T: +44 (0)191 334 1584 [I'm currently working remotely and am not contactable by phone] E: j.m.gleg... Read More about Spin dynamics in bulk MnNiGa and Mn1.4Pt0.9Pd0.1Sn investigated by muon spin relaxation.

Magnetic order and ballistic spin transport in a sine-Gordon spin chain (2021)
Journal Article
Huddart, B., Gomilšek, M., Hicken, T., Pratt, F., Blundell, S., Goddard, P., Kaech, S., Manson, J., & Lancaster, T. (2021). Magnetic order and ballistic spin transport in a sine-Gordon spin chain. Physical Review B, 103(6), Article L060405. https://doi.org/10.1103/physrevb.103.l060405

We report the results of muon-spin spectroscopy (μ+SR) measurements on the staggered molecular spin chain [pym-Cu(NO3 )2(H2O)2] (pym = pyrimidine), a material previously described using sine-Gordon field theory. Zero-field μ+SR reveals a long range m... Read More about Magnetic order and ballistic spin transport in a sine-Gordon spin chain.

Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange (2020)
Journal Article
Xiao, F., Blackmore, W., Huddart, B., Gomilšek, M., Hicken, T., Baines, C., Baker, P., Pratt, F., Blundell, S., Lu, H., Singleton, J., Gawryluk, D., Turnbull, M., Krämer, K., Goddard, P., & Lancaster, T. (2020). Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange. Physical Review B, 102(17), Article 174429. https://doi.org/10.1103/physrevb.102.174429

We present an investigation of the effect of randomizing exchange coupling strengths in the S = 1/2 square lattice quasi-two-dimensional quantum Heisenberg antiferromagnet (QHAF) (QuinH)2Cu(ClxBr1−x )4 · 2H2O (QuinH = Quinolinium, C9H8N+), with 0 x 1... Read More about Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange.

Origin of Magnetic Ordering in a Structurally Perfect Quantum Kagome Antiferromagnet (2020)
Journal Article
Arh, T., Gomilšek, M., Prelovšek, P., Pregelj, M., Klanjšek, M., Ozarowski, A., Clark, S., Lancaster, T., Sun, W., Mi, J.-X., & Zorko, A. (2020). Origin of Magnetic Ordering in a Structurally Perfect Quantum Kagome Antiferromagnet. Physical Review Letters, 125(2), Article 027203. https://doi.org/10.1103/physrevlett.125.027203

The ground state of the simple Heisenberg nearest-neighbor quantum kagome antiferromagnetic model is a magnetically disordered spin liquid, yet various perturbations may lead to fundamentally different states. Here we disclose the origin of magnetic... Read More about Origin of Magnetic Ordering in a Structurally Perfect Quantum Kagome Antiferromagnet.

Magnetism and Néel skyrmion dynamics in GaV4S8−ySey (2020)
Journal Article
Hicken, T., Holt, S., Franke, K., Hawkhead, Z., Štefančič, A., Wilson, M., Gomilšek, M., Huddart, B., Clark, S., Lees, M., Pratt, F., Blundell, S., Balakrishnan, G., & Lancaster, T. (2020). Magnetism and Néel skyrmion dynamics in GaV4S8−ySey. Physical Review Research, 2(3), Article 032001. https://doi.org/10.1103/physrevresearch.2.032001

We present an investigation of the influence of low levels of chemical substitution on the magnetic ground state and Néel skyrmion lattice (SkL) state in GaV4S8−ySey, where y=0,0.1,7.9, and 8. Muon-spin spectroscopy (μSR) measurements on y=0 and 0.1... Read More about Magnetism and Néel skyrmion dynamics in GaV4S8−ySey.

Negative-vector-chirality 120∘ spin structure in the defect- and distortion-free quantum kagome antiferromagnet YCu3(OH)6Cl3 (2019)
Journal Article
Zorko, A., Pregelj, M., Gomilšek, M., Klanjšek, M., Zaharko, O., Sun, W., & Mi, J.-X. (2019). Negative-vector-chirality 120∘ spin structure in the defect- and distortion-free quantum kagome antiferromagnet YCu3(OH)6Cl3. Physical Review B, 100(14), Article 144420. https://doi.org/10.1103/physrevb.100.144420

The magnetic ground state of the ideal quantum kagome antiferromagnet (QKA) has been a longstanding puzzle, mainly because perturbations to the nearest-neighbor isotropic Heisenberg Hamiltonian can lead to various fundamentally different ground state... Read More about Negative-vector-chirality 120∘ spin structure in the defect- and distortion-free quantum kagome antiferromagnet YCu3(OH)6Cl3.

Coexistence of magnetic order and persistent spin dynamics in a quantum kagome antiferromagnet with no intersite mixing (2019)
Journal Article
Zorko, A., Pregelj, M., Klanjšek, M., Gomilšek, M., Jagličić, Z., Lord, J., Verezhak, J., Shang, T., Sun, W., & Mi, J.-X. (2019). Coexistence of magnetic order and persistent spin dynamics in a quantum kagome antiferromagnet with no intersite mixing. Physical review B - Condensed Matter and Materials Physics, 99(21), Article 214441. https://doi.org/10.1103/physrevb.99.214441

One of the key questions concerning frustrated lattices that has lately emerged is the role of disorder in inducing spin-liquid-like properties. In this context, the quantum kagome antiferromagnet YCu3(OH)6Cl3, which has been recently reported as the... Read More about Coexistence of magnetic order and persistent spin dynamics in a quantum kagome antiferromagnet with no intersite mixing.

Kondo screening in a charge-insulating spinon metal (2019)
Journal Article
Gomilšek, M., Žitko, R., Klanjšek, M., Pregelj, M., Baines, C., Li, Y., Zhang, Q., & Zorko, A. (2019). Kondo screening in a charge-insulating spinon metal. Nature Physics, 15(8), 754-758. https://doi.org/10.1038/s41567-019-0536-2

The Kondo effect, an eminent manifestation of many-body physics in condensed matter, is traditionally explained as exchange scattering of conduction electrons on a spinful impurity in a metal1,2. The resulting screening of the impurity’s local moment... Read More about Kondo screening in a charge-insulating spinon metal.

Elementary excitation in the spin-stripe phase in quantum chains (2019)
Journal Article
Pregelj, M., Zorko, A., Gomilšek, M., Klanjšek, M., Zaharko, O., White, J. S., Luetkens, H., Coomer, F., Ivek, T., Rivas Góngora, D., Berger, H., & Arčon, D. (2019). Elementary excitation in the spin-stripe phase in quantum chains. npj Quantum Materials, 4(1), Article 22. https://doi.org/10.1038/s41535-019-0160-5

Elementary excitations in condensed matter capture the complex many-body dynamics of interacting basic entities in a simple quasiparticle picture. In magnetic systems the most established quasiparticles are magnons, collective excitations that reside... Read More about Elementary excitation in the spin-stripe phase in quantum chains.

Observation of two types of fractional excitation in the Kitaev honeycomb magnet (2018)
Journal Article
Janša, N., Zorko, A., Gomilšek, M., Pregelj, M., Krämer, K. W., Biner, D., Biffin, A., Rüegg, C., & Klanjšek, M. (2018). Observation of two types of fractional excitation in the Kitaev honeycomb magnet. Nature Physics, 14(8), 786-790. https://doi.org/10.1038/s41567-018-0129-5

Quantum spin liquid is a disordered but highly entangled magnetic state with fractional spin excitations1. The ground state of an exactly solved Kitaev honeycomb model is perhaps its clearest example2. Under a magnetic field, a spin flip in this mode... Read More about Observation of two types of fractional excitation in the Kitaev honeycomb magnet.