Zobrazeno 1 - 10
of 200
pro vyhledávání: '"Henelius P"'
Autor:
Qvarngård, Daniel, Henelius, Patrik
We study classical spin models on the 1/1 Tsai-type approximant lattice using Monte Carlo and mean-field methods. Our aim is to understand whether the phase diagram differences between Gd- and Tb-based approximants can be attributed to anisotropy ind
Externí odkaz:
http://arxiv.org/abs/2311.03781
Autor:
Edberg, Richard, Fjellvåg, Ingrid Marie, Hoffman, Lise, Deen, Petronella Pascale, Lefmann, Kim, Henelius, Patrik, Rydh, Andreas
We use modulation calorimetry to study the heat capacity of small samples (30 nano gram-10 micro gram) of the classical spin-ice compounds Dy2Ti2O7 and Ho2Ti2O7 at low temperature (0.5-3 K). Using modulation frequencies of 0.1-200 Hz we find a strong
Externí odkaz:
http://arxiv.org/abs/2202.02801
Autor:
Turrini, A. A., Harman-Clarke, A., Fennell, T., Wood, I. G., Henelius, P., Bramwell, S. T., Holdsworth, P. C. W.
We present a comprehensive experimental and theoretical study of the kagome ice Coulomb phase, that explores the fine tuning of critical correlations by applied field, temperature and crystal orientation. The continuous modification of algebraic corr
Externí odkaz:
http://arxiv.org/abs/2102.06546
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
Autor:
Edberg, Richard, Bakke, Ingrid Marie Bergh, Kondo, Hirotaka, Sandberg, Lise Ørduk, Haubro, Morten, Gurthrie, Malcom, Holmes, Alexander, Engqvist, Jonas, Wildes, Andrew, Matsuhira, Kazuyuki, Lefmann, Kim, Deen, Pascale, Mito, Masaki, Henelius, Patrik
Publikováno v:
Phys. Rev. B 102, 184408 (2020)
The spin ice materials Ho2Ti2O7 and Dy2Ti2O7 are experimental and theoretical exemplars of highly frustrated magnetic materials. However, the effects of an applied uniaxial pressure are not well studied, and here we report magnetization measurements
Externí odkaz:
http://arxiv.org/abs/2006.02756
Autor:
Sandberg, Lise Orduk, Edberg, Richard, Pedersen, Kasper S., Hatnean, Monica Ciomaga, Balakrishnan, Geetha, Mangin-Thro, Lucile, Wildes, Andrew, Fak, B., Ehlers, Georg, Sala, Gabriele, Henelius, Patrik, Lefmann, Kim, Deen, Pascale P.
Publikováno v:
Phys. Rev. B 104, 064425 (2021)
We report neutron scattering, magnetic susceptibility and Monte Carlo theoretical analysis to verify the short range nature of the magnetic structure and spin-spin correlations in a Yb$_3$Ga$_5$O$_{12}$ single crystal. The quantum spin state of Yb$^{
Externí odkaz:
http://arxiv.org/abs/2005.10605
Publikováno v:
Clinical and Experimental Dental Research, Vol 9, Iss 2, Pp 290-298 (2023)
Abstract Objective The aim of this study was to explore the influence of a framing effect in retreatment decision‐making of a root‐filled tooth with asymptomatic apical periodontitis (AP). Method Two variants of a questionnaire were created in wh
Externí odkaz:
https://doaj.org/article/38a4d5d1ef5848148aefa80fa186d0c4
Regression analysis is a standard supervised machine learning method used to model an outcome variable in terms of a set of predictor variables. In most real-world applications we do not know the true value of the outcome variable being predicted out
Externí odkaz:
http://arxiv.org/abs/1910.04069
Autor:
Edberg, Richard, Sandberg, Lise Ørduk, Bakke, Ingrid Marie Bergh, Haubro, Morten Lunn, Mangin-Thro, Lucile, Guthrie, Malcolm, Holmes, Alexander, Sørby, Magnus, Lefmann, Kim, Deen, Pascale Petronella, Henelius, Patrik
Publikováno v:
Phys. Rev. B 100, 144436 (2019)
The magnetically frustrated spin ice family of materials is host to numerous exotic phenomena such as magnetic monopole excitations and macroscopic residual entropy extending to low temperature. A finite-temperature ordering transition in the absence
Externí odkaz:
http://arxiv.org/abs/1907.03638
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