Zobrazeno 1 - 10
of 408
pro vyhledávání: '"Piatek, J."'
Autor:
Babkevich, P., Nikseresht, N., Kovacevic, I., Piatek, J. O., Piazza, B. Dalla, Kraemer, C., Krämer, K. W., Prokeš, K., Mat'aš, S., Jensen, J., Rønnow, H. M.
Publikováno v:
Phys. Rev. B 94, 174443 (2016)
We present a systematic study of the phase diagram of LiHo$_x$Y$_{1-x}$F$_4$ ($0.25
Externí odkaz:
http://arxiv.org/abs/1611.09777
Publikováno v:
Phys. Rev. B 94, 214433 (2016)
We present direct local-probe evidence for strongly hybridized nuclear-electronic spin states of an Ising ferromagnet LiHoF$_4$ in a transverse magnetic field. The nuclear-electronic states are addressed via a magnetic resonance in the GHz frequency
Externí odkaz:
http://arxiv.org/abs/1607.00124
Autor:
Piatek, J. O., Kovacevic, I., Babkevich, P., Piazza, B. Dalla, Neithardt, S., Gavilano, J., Krämer, K. W., Rønnow, H. M.
Publikováno v:
Phys. Rev. B 90, 174427 (2014)
We present a study of the model spin-glass LiHo$_{0.5}$Er$_{0.5}$F$_4$ using simultaneous AC susceptibility, magnetization and magnetocaloric effect measurements along with small angle neutron scattering (SANS) at sub-Kelvin temperatures. All measure
Externí odkaz:
http://arxiv.org/abs/1411.5813
Autor:
Piatek, J. O., Piazza, B. Dalla, Nikseresht, N., Tsyrulin, N., Živković, I., Krämer, K. W., Laver, M., Prokes, K., Mataš, S., Christensen, N. B., Rønnow, H. M.
Publikováno v:
Phys. Rev. B 88, 014408 (2013)
We present the experimental phase diagram of LiHo$_x$Er$_{1-x}$F$_4$, a dilution series of dipolar-coupled model magnets.The phase diagram was determined using a combination of AC susceptibility and neutron scattering. Three unique phases in addition
Externí odkaz:
http://arxiv.org/abs/1307.4271
Autor:
Kasinathan, Deepa, Koepernik, K., Janson, O., Nilsen, G. J., Piatek, J. O., Ronnow, H. M., Rosner, H.
The compound KTi(SO4)2.H2O was recently reported as a quasi one-dimensional spin 1/2 compound with competing antiferromagnetic nearest neighbor exchange J1 and next-nearest neighbor exchange J2 along the chain with a frustration ratio alpha = J2/J1 ~
Externí odkaz:
http://arxiv.org/abs/1304.3361
Publikováno v:
New Journal of Physics, 15, 043024 (2013)
We carried out AC magnetic susceptibility measurements and muon spin relaxation spectroscopy on the cubic double perovskite Ba2YMoO6, down to 50 mK. Below ~1 K the muon relaxation is typical of a magnetic insulator with a spin-liquid type ground stat
Externí odkaz:
http://arxiv.org/abs/1301.4982
Autor:
Xu, P., Piatek, J. O., Lin, P. -H., Sipos, B., Berger, H., Forró, L., Rønnow, H. M., Grioni, M.
Publikováno v:
Phys. Rev. B 81, 172503 (2010)
When a Mott metal-insulator transition is inhibited by a small amount of disorder in the layered dichalcogenide 1T-TaS$_2$, an inhomogeneous superconducting state arises below T=2.1 K, and coexists with a nearly-commensurate charge-density-wave. By a
Externí odkaz:
http://arxiv.org/abs/1004.3251
Autor:
de Vries, M. A., Stewart, J. R., Deen, P. P., Piatek, J. O., Nilsen, G. J., Ronnow, H. M., Harrison, A.
Publikováno v:
Phys. Rev. Lett. 103, 237201 (2009)
Neutron spectroscopy and diffuse neutron scattering on herbertsmithite [ZnCu3 (OH)6Cl2], a near-ideal realisation of the s = 1/2 kagome antiferromagnet, reveal the hallmark property of a quantum spin liquid; instantaneous short-ranged antiferromagnet
Externí odkaz:
http://arxiv.org/abs/0902.3194
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Akademický článek
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