Zobrazeno 1 - 10
of 167
pro vyhledávání: '"TURNBULL, M. M."'
Autor:
Opherden, D., Tepaske, M. S. J., Bärtl, F., Weber, M., Turnbull, M. M., Lancaster, T., Blundell, S. J., Baenitz, M., Wosnitza, J., Landee, C. P., Moessner, R., Luitz, D. J., Kühne, H.
We report the manifestation of field-induced Berezinskii-Kosterlitz-Thouless (BKT) correlations in the weakly coupled spin-1/2 Heisenberg layers of the molecular-based bulk material [Cu(pz)$_2$(2-HOpy)$_2$](PF$_6$)$_2$. Due to the moderate intralayer
Externí odkaz:
http://arxiv.org/abs/2209.11085
Autor:
Opherden, D., Nizar, N., Richardson, K., Monroe, J. C., Turnbull, M. M., Polson, M., Vela, S., Blackmore, W. J. A., Goddard, P. A., Singleton, J., Choi, E. S., Xiao, F., Williams, R. C., Lancaster, T., Pratt, F. L., Blundell, S. J., Skourski, Y., Uhlarz, M., Ponomaryov, A. N., Zvyagin, S. A., Wosnitza, J., Baenitz, M., Heinmaa, I., Stern, R., Kühne, H., Landee, C. P.
Publikováno v:
Phys. Rev. B 102, 064431 (2020)
We report on a comprehensive characterization of the newly synthesized Cu$^{2+}$-based molecular magnet [Cu(pz)$_2$(2-HOpy)$_2$](PF$_6$)$_2$ (CuPOF), where pz = C$_4$H$_4$N$_2$ and 2-HOpy = C$_5$H$_4$NHO. From a comparison of theoretical modeling to
Externí odkaz:
http://arxiv.org/abs/2005.12058
Autor:
Xiao, F., Blackmore, W. J. A., Huddart, B. M., Gomilšek, M., Hicken, T. J., Baines, C., Baker, P. J., Pratt, F. L., Blundell, S. J., Lu, H., Singleton, J., Gawryluk, D., Turnbull, M. M., Krämer, K. W., Goddard, P. A., Lancaster, T.
Publikováno v:
Phys. Rev. B 102, 174429 (2020)
We present an investigation of the effect of randomizing exchange strengths in the $S=1/2$ square lattice quasi-two-dimensional quantum Heisenberg antiferromagnet (QuinH)$_2$Cu(Cl$_{x}$Br$_{1-x}$)$_{4}\cdot$2H$_2$O (QuinH$=$Quinolinium, C$_9$H$_8$N$^
Externí odkaz:
http://arxiv.org/abs/2004.02547
Autor:
Hong, Tao, Qiu, Y., Matsumoto, M., Tennant, D. A., Coester, K., Schmidt, K. P., Awwadi, F. F., Turnbull, M. M., Agrawal, H., Chernyshev, A. L.
Publikováno v:
Nat. Commun. 8, 15148 (2017)
The notion of a quasiparticle, such as a phonon, a roton, or a magnon, is used in modern condensed matter physics to describe an elementary collective excitation. The intrinsic zero-temperature magnon damping in quantum spin systems can be driven by
Externí odkaz:
http://arxiv.org/abs/1608.08172
Autor:
Möller, J. S., Lancaster, T., Blundell, S. J., Pratt, F. L., Baker, P. J., Xiao, F., Williams, R. C., Hayes, W., Turnbull, M. M., Landee, C. P.
Publikováno v:
Phys. Rev. B 95, 020402 (2017)
We demonstrate that quantum-critical spin dynamics can be probed in high magnetic fields using muon-spin relaxation ($\mu^{+}$SR). Our model system is the strong-leg spin ladder bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY). In the gapless To
Externí odkaz:
http://arxiv.org/abs/1608.05059
Autor:
Ozerov, M., Maksymenko, M., Wosnitza, J., Honecker, A., Landee, C. P., Turnbull, M. M., Furuya, S. C., Giamarchi, T., Zvyagin, S. A.
Publikováno v:
Phys. Rev. B 92, 241113 (2015)
Magnetic excitations in the strong-leg quantum spin ladder compound (C$_7$H$_{10}$N)$_2$CuBr$_4$ (known as DIMPY) in the field-induced Tomonaga-Luttinger spin liquid phase are studied by means of high-field electron spin resonance (ESR) spectroscopy.
Externí odkaz:
http://arxiv.org/abs/1509.02056
Autor:
Hong, Tao, Schmidt, K. P., Coester, K., Awwadi, F. F., Turnbull, M. M., Qiu, Y., Rodriguez-Rivera, J. A., Zhu, M., Ke, X., Aoyama, C. P., Takano, Y., Cao, Huibo, Tian, W., Ma, J., Custelcean, R., Zhou, H. D., Matsuda, M.
Publikováno v:
Physical Review B 89, 174432 (2014)
We present specific-heat and neutron-scattering results for the \emph{S}=1/2 quantum antiferromagnet (dimethylammonium)(3,5-dimethylpyridinium)CuBr$_4$. The material orders magnetically at \emph{T}$_N$=1.99(2)\,K, and magnetic excitations are accompa
Externí odkaz:
http://arxiv.org/abs/1405.6748
Autor:
Validov, A. A., Ozerov, M., Wosnitza, J., Zvyagin, S. A., Turnbull, M. M., Landee, C. P., Teitel'baum, G. B.
By means of electron spin resonance investigations we revealed the crucial role of the interchain coupling in the spin dynamics of the spin-1/2 Heisenberg antiferromagnetic (AF) chain material copper-pyrazine-dinitrate, Cu(C$_4$H$_4$N$_2$)(NO$_3$)$_2
Externí odkaz:
http://arxiv.org/abs/1212.6308
Autor:
Ninios, K., Hong, Tao, Manabe, T., Hotta, C., Herringer, S. N., Turnbull, M. M., Landee, C. P., Takano, Y., Chan, H. B.
Publikováno v:
Phys. Rev. Lett. 108, 097201 (2012)
Using micromechanical force magnetometry, we have measured the magnetization of the strong-leg spin-1/2 ladder compound (C$_7$H$_{10}$N)$_2$CuBr$_2$ at temperatures down to 45 mK. Low-temperature magnetic susceptibility as a function of field exhibit
Externí odkaz:
http://arxiv.org/abs/1110.5653
Autor:
Hong, Tao, Gvasaliya, S. N., Herringer, S., Turnbull, M. M., Landee, C. P., Regnault, L. -P., Boehm, M., Zheludev, A.
Publikováno v:
Phys. Rev. B 83, 052401 (2011)
Inelastic neutron scattering was used to study a quantum S=1/2 antiferromagnetic Heisenberg system-Bis(2-amino-5-fluoropyridinium) Tetrachlorocuprate(II). The magnetic excitation spectrum was shown to be dominated by long-lived excitations with an en
Externí odkaz:
http://arxiv.org/abs/1010.1230