%0 Journal Article %1 pili2022topological %A Pili, L. %A Steppke, A. %A Barber, M. E. %A Jerzembeck, F. %A Hicks, C. W. %A Guruciaga, P. C. %A Prabhakaran, D. %A Moessner, R. %A Mackenzie, A. P. %A Grigera, S. A. %A Borzi, R. A. %D 2022 %I American Physical Society %J Phys. Rev. B %K physics spin_ice thermodynamics %N 18 %P 184422 %R 10.1103/PhysRevB.105.184422 %T Topological metamagnetism: Thermodynamics and dynamics of the transition in spin ice under uniaxial compression %U https://link.aps.org/doi/10.1103/PhysRevB.105.184422 %V 105 %X Metamagnetic transitions are analogs of a pressure-driven gas-liquid transition in water. In insulators, they are marked by a superlinear increase in the magnetization that occurs at a field strength set by the spin exchange interactions. Here we study topological metamagnets, in which the magnetization is itself a topological quantity and for which we find a single transition line for two materials with substantially different magnetic interactions: the spin ices Dy2Ti2O7 and Ho2Ti2O7. We study single crystals under magnetic field and stress applied along the 001 direction and show that this transition, of the Kasteleyn type, has a magnetization versus field curve with upward convexity and a distinctive asymmetric peak in the susceptibility. We also show that the dynamical response of Ho2Ti2O7 is sensitive to changes in the Ho3+ environment induced by compression along 001. Uniaxial compression may open up experimental access to equilibrium properties of spin ice at lower temperatures.

@article{pili2022topological, abstract = {Metamagnetic transitions are analogs of a pressure-driven gas-liquid transition in water. In insulators, they are marked by a superlinear increase in the magnetization that occurs at a field strength set by the spin exchange interactions. Here we study topological metamagnets, in which the magnetization is itself a topological quantity and for which we find a single transition line for two materials with substantially different magnetic interactions: the spin ices Dy2Ti2O7 and Ho2Ti2O7. We study single crystals under magnetic field and stress applied along the [001] direction and show that this transition, of the Kasteleyn type, has a magnetization versus field curve with upward convexity and a distinctive asymmetric peak in the susceptibility. We also show that the dynamical response of Ho2Ti2O7 is sensitive to changes in the Ho3+ environment induced by compression along [001]. Uniaxial compression may open up experimental access to equilibrium properties of spin ice at lower temperatures.}, added-at = {2023-11-22T11:44:01.000+0100}, author = {Pili, L. and Steppke, A. and Barber, M. E. and Jerzembeck, F. and Hicks, C. W. and Guruciaga, P. C. and Prabhakaran, D. and Moessner, R. and Mackenzie, A. P. and Grigera, S. A. and Borzi, R. A.}, biburl = {https://www.bibsonomy.org/bibtex/2eba38f4111b6c11e49fb1f734d23f301/tabularii}, day = 24, description = {Phys. Rev. B 105, 184422 (2022) - Topological metamagnetism: Thermodynamics and dynamics of the transition in spin ice under uniaxial compression}, doi = {10.1103/PhysRevB.105.184422}, interhash = {da1629884382c93e8f91ff7757a6a5cb}, intrahash = {eba38f4111b6c11e49fb1f734d23f301}, journal = {Phys. Rev. B}, keywords = {physics spin_ice thermodynamics}, month = {05}, number = 18, numpages = {8}, pages = 184422, publisher = {American Physical Society}, timestamp = {2023-11-22T11:44:01.000+0100}, title = {Topological metamagnetism: Thermodynamics and dynamics of the transition in spin ice under uniaxial compression}, url = {https://link.aps.org/doi/10.1103/PhysRevB.105.184422}, volume = 105, year = 2022 }