Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Bramwell, Steven"'
Debye-H\"{u}ckel theory, originally developed to describe dilute electrolyte solutions, has proved particularly successful as a description of magnetic monopoles in spin ice systems such as Dy$_{2}$Ti$_{2}$O$_{7}$. For this model, Ryzhkin et al. [JET
Externí odkaz:
http://arxiv.org/abs/2312.02633
Autor:
Bramwell, Steven T.
This paper explores the possibility of establishing an analytic form of the distribution of the order parameter fluctuations in a two-dimensional critical spin wave model, or width fluctuations of a two dimensional Edwards-Wilkinson interface. It is
Externí odkaz:
http://arxiv.org/abs/2109.13877
Autor:
Arroo, Daan M., Bramwell, Steven T.
Publikováno v:
Phys. Rev. B 102, 214427 (2020)
The two dimensional F-model is an ice-rule obeying model, with a low temperature antiferroelectric state and high temperature critical Coulomb phase. Polarization in the system is associated with topological defects in the form of system-spanning win
Externí odkaz:
http://arxiv.org/abs/2010.05839
Publikováno v:
Phys. Rev. B 102, 144426 (2020)
The demagnetizing factor has an important effect on the physics of ferromagnets. For cuboidal samples it depends on susceptibility and the historic problem of determining this function continues to generate theoretical and experimental challenges. To
Externí odkaz:
http://arxiv.org/abs/2006.10090
The structure factor for electric field correlations in the two dimensional Coulomb fluid is simulated and compared to theories of the dielectric function. Singular changes in the structure factor occur at the BKT insulator to conductor transition, a
Externí odkaz:
http://arxiv.org/abs/1912.02243
Publikováno v:
Phys. Rev. Research 2, 013305 (2020)
A pinch point singularity in the structure factor characterizes an important class of condensed matter that is a counterpoint to the paradigm of broken symmetry. This class includes water ice, charge ice and spin ice. Of these, dipolar spin ice affor
Externí odkaz:
http://arxiv.org/abs/1906.01888
Autor:
Salzmann, Christoph G., Sharif, Zainab, Bull, Craig L., Bramwell, Steven T., Rosu-Finsen, Alexander, Funnell, Nicholas P.
The removal of residual hydrogen disorder from various phases of ice with acid or base dopants at low temperatures has been a focus of intense research for many decades. As an antipode to these efforts, we now show using neutron diffraction that ammo
Externí odkaz:
http://arxiv.org/abs/1905.04763
Autor:
Kaiser, Vojtěch, Bloxsom, Jonathan, Bovo, Laura, Bramwell, Steven T., Holdsworth, Peter C. W., Moessner, Roderich
Publikováno v:
Phys. Rev. B 98, 144413 (2018)
The low-temperature picture of dipolar spin ice in terms of the Coulomb fluid of its fractionalised magnetic monopole excitations has allowed analytic and conceptual progress far beyond its original microscopic spin description. Here we develop its t
Externí odkaz:
http://arxiv.org/abs/1803.04668
Autor:
Shirai, Masae, Freitas, Rafael S., Lago, Jorge, Bramwell, Steven T., Ritter, Clemens, Živković, Ivica
Publikováno v:
Phys. Rev. B 96, 180411 (2017)
We present the results of the investigation of magnetic properties of the Er$_2$Ti$_{2-x}$Sn$_x$O$_7$ series. For small doping values the ordering temperature decreases linearly with $x$ while the moment configuration remains the same as in the $x =
Externí odkaz:
http://arxiv.org/abs/1711.04890
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.