Zobrazeno 1 - 10
of 483
pro vyhledávání: '"Arčon, D."'
Autor:
Pregelj, M., Zorko, A., Arčon, D., Klanjšek, M., Janša, N., Jeglič, P., Zaharko, O., Krämer, S., Horvatić, M., Prokofiev, A.
Publikováno v:
Phys. Rev. B 105, 035145 (2022)
In frustrated spin-1/2 chains the competition between the nearest- and next-nearest-neighbor exchange interactions leads to a rich phase diagram that becomes even richer in the presence of perturbations in their material realizations. These effects a
Externí odkaz:
http://arxiv.org/abs/2205.11875
Autor:
Pregelj, M., Zorko, A., Arčon, D., Klanjšek, M., Zaharko, O., Krämer, S., Horvatić, M., Prokofiev, A.
Publikováno v:
Phys. Rev. B 102, 081104(R) (2020)
The spin-nematic phase is an intriguing state of matter that lacks usual long-range dipolar order, yet it exhibits higher multipolar order. This makes its detection extremely difficult and controversial. Recently, nuclear magnetic resonance (NMR) has
Externí odkaz:
http://arxiv.org/abs/2007.10751
Publikováno v:
Phys. Rev. B 101, 220508 (2020)
While the vast majority of known physical realizations of the Tomonaga-Luttinger liquid (TLL) have repulsive interactions defined with the dimensionless interaction parameter $K_{\rm c}<1$, we here report that Rb$_2$Mo$_3$As$_3$ is in the opposite TL
Externí odkaz:
http://arxiv.org/abs/2001.07909
Autor:
Knaflič, T., Jeglič, P., Komelj, M., Zorko, A., Biswas, P. K., Ponomaryov, A. N., Zvyagin, S. A., Reehuis, M., Hoser, A., Geiß, M., Janek, J., Adler, P., Felser, C., Jansen, M., Arčon, D.
Publikováno v:
Phys. Rev. B 101, 024419 (2020)
Recently, a Verwey-type transition in the mixed-valence alkali sesquioxide Cs$_4$O$_6$ was deduced from the charge ordering of molecular peroxide O$_2^{2-}$ and superoxide O$_2^-$ anions accompanied by the structural transformation and a dramatic cha
Externí odkaz:
http://arxiv.org/abs/1911.12049
Autor:
Pregelj, M., Zorko, A., Klanjšek, M., Zaharko, O., White, J. S., Prokhnenko, O., Bartkowiak, M., Nojiri, H., Berger, H., Arčon, D.
Publikováno v:
Phys. Rev. B 100, 094433 (2019)
Frustrated spin-1/2 chains, despite the apparent simplicity, exhibit remarkably rich phase diagram comprising vector-chiral (VC), spin-density-wave (SDW) and multipolar/spin-nematic phases as a function of the magnetic field. Here we report a study o
Externí odkaz:
http://arxiv.org/abs/1909.07085
Autor:
Pregelj, M., Zorko, A., Gomilšek, M., Klanjšek, M., Zaharko, O., White, J. S., Luetkens, H., Coomer, F., Ivek, T., Góngora, D. R., Berger, H., Arčon, D.
Publikováno v:
npj Quantum Materials (2019)4:22
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
Externí odkaz:
http://arxiv.org/abs/1905.02079
Publikováno v:
Phys. Rev. B 98, 094405 (2018)
We investigate magnetic excitations in the frustrated zigzag spin-1/2 chain compound $\beta$-TeVO$_4$ by inelastic neutron scattering. In the magnetically ordered ground state, the excitation spectrum exhibits coexisting magnon dispersion, characteri
Externí odkaz:
http://arxiv.org/abs/1808.10174
Autor:
Zorko, A., Jeglič, P., Pregelj, M., Arčon, D., Luetkens, H., Tchougréeff, A. L., Dronskowski, R.
Publikováno v:
Phys. Rev. B 97, 214432 (2018)
Copper carbodiimide, CuNCN, is a geometrically frustrated nitrogen-based analogue of cupric oxide, whose magnetism remains ambiguous. Here, we employ a combination of local-probe techniques, including $^{63,\, 65}$Cu nuclear quadrupole resonance, $^{
Externí odkaz:
http://arxiv.org/abs/1806.05486
Autor:
Pregelj, M., Zaharko, O., Herak, M., Gomilsek, M., Zorko, A., Chapon, L. C., Bourdarot, F., Berger, H., Arčon, D.
Publikováno v:
Phys. Rev. B 94, 081114(R) (2016)
We investigate the spin-stripe mechanism responsible for the peculiar nanometer modulation of the incommensurate magnetic order that emerges between the vector-chiral and the spin-density-wave phase in the frustrated zigzag spin-1/2 chain compound $\
Externí odkaz:
http://arxiv.org/abs/1608.04495
Publikováno v:
Phys. Rev. B 93, 104413 (2016)
In itinerant ferromagnets, the quenched disorder is predicted to dramatically affect the ferromagnetic to paramagnetic quantum phase transition driven by external control parameters at zero temperature. Here we report a study on Fe-doped Cr$_2$B, whi
Externí odkaz:
http://arxiv.org/abs/1608.01136