Zobrazeno 1 - 10
of 831
pro vyhledávání: '"Rosenbaum T"'
We measure the non-linear magnetic susceptibility $\chi^{(3)}$ of the disordered quantum Ising magnet, \lihofour, and demonstrate four-wave mixing due to coherent (anti-)Stokes Raman scattering at $\sim$ 100 Hz (p$e$V) energy scales. The temperature
Externí odkaz:
http://arxiv.org/abs/2410.05556
Autor:
Stamp, P. C. E., Silevitch, D. M., Libersky, M., McKenzie, Ryan, Geim, A. A., Rosenbaum, T. F.
Publikováno v:
Phys. Rev. B 110, 134420 (2024)
We examine the low-energy excitations in the vicinity of the quantum critical point in LiHoF$_4$, a physical realization of the Transverse Field Ising Model, focusing on the long-range fluctuations which soften to zero energy at the ferromagnetic qua
Externí odkaz:
http://arxiv.org/abs/2408.03510
Publikováno v:
Proc. Nat. Acad. Sci. USA 121, e2315787121 (2024)
Charge transport in solids at low temperature reveals a material's mesoscopic properties and structure. Under a magnetic field, Shubnikov-de Haas (SdH) oscillations inform complex quantum transport phenomena that are not limited by the ground state c
Externí odkaz:
http://arxiv.org/abs/2309.04059
Most macroscopic magnetic phenomena (including magnetic hysteresis) are typically understood classically. Here, we examine the dynamics of a uniaxial rare-earth ferromagnet deep within the quantum regime, so that domain wall motion, and the associate
Externí odkaz:
http://arxiv.org/abs/2309.01799
We present a theory of magnon-polaritons in quantum Ising materials, and develop a formalism describing the coupling between light and matter as an Ising system is tuned through its quantum critical point. The theory is applied to Ising materials hav
Externí odkaz:
http://arxiv.org/abs/2209.08674
Autor:
Li, Chen, Li, Xiang, Deshpande, T., Li, Xinwei, Nair, N., Analytis, J. G., Silevitch, D. M., Rosenbaum, T. F., Hsieh, D.
Publikováno v:
Phys. Rev. B 106, 014101 (2022)
The transition metal monopnictide family of Weyl semimetals recently has been shown to exhibit anomalously strong second-order optical nonlinearity, which is theoretically attributed to a highly asymmetric polarization distribution induced by their p
Externí odkaz:
http://arxiv.org/abs/2207.09888
Autor:
Li, Xiang, Cooper, S. E., Krishnadas, A., de la Torre, A., Perry, R. S., Baumberger, F., Silevitch, D. M., Hsieh, D., Rosenbaum, T. F., Feng, Yejun
Publikováno v:
Physical Review B 114, L201111 (2021)
Protected by the interplay of on-site Coulomb interactions and spin-orbit coupling, Sr$_2$IrO$_4$ at high pressure is a rare example of a Mott insulator with a paramagnetic ground state. Here, using optical Raman scattering, we measure both the phono
Externí odkaz:
http://arxiv.org/abs/2110.11588
Autor:
Shi, Zhenzhong, Dissanayake, Sachith, Corboz, Philippe, Steinhardt, William, Graf, David, Silevitch, D. M., Dabkowska, Hanna A., Rosenbaum, T. F., Mila, Frédéric, Haravifard, Sara
Motivated by the intriguing properties of the Shastry-Sutherland compound SrCu2(BO3)2 under pressure, with a still debated intermediate plaquette phase appearing at around 20 kbar and a possible deconfined critical point at higher pressure upon enter
Externí odkaz:
http://arxiv.org/abs/2107.02929
Publikováno v:
Phys. Rev. Lett. vol 127 article 207202 (2021)
We directly measure the low energy excitation modes of the quantum Ising magnet LiHoF$_4$ using microwave spectroscopy. Instead of a single electronic mode, we find a set of collective electronuclear modes, in which the spin-$1/2$ Ising electronic sp
Externí odkaz:
http://arxiv.org/abs/2101.05143
Autor:
Feng, Yejun, Wang, Yishu, Silevitch, D. M., Cooper, S. E., Mandrus, D., Lee, Patrick A., Rosenbaum, T. F.
Publikováno v:
Nature Communications 12, 2779 (2021)
Metal-insulator transitions involve a mix of charge, spin, and structural degrees of freedom, and when strongly-correlated, can underlay the emergence of exotic quantum states. Mott insulators induced by the opening of a Coulomb gap are an important
Externí odkaz:
http://arxiv.org/abs/2009.13277