288 citations · 920 across the 13 of their papers we have counts for
13 papers
Organic Molecular Dynamics and Charge-carrier Lifetime in Lead Iodide Perovskite MAPbI
A. Koda, H. Okabe, M. Hiraishi +4
The long charge carrier lifetime of the hybrid organic-inorganic perovskites (HOIPs) is the key for their remarkable performance as a solar cell material. The microscopic mechanism…
Freezing of a disorder induced quantum spin liquid
Xiao Hu, Daniel M. Pajerowski, Depei Zhang +8
is a square-lattice magnet with super-exchange between S=1/2 spins mediated by randomly distributed Te and W ions. Here, using sub-K…
Temporally-decoherent and spatially-coherent vibrations in metal halide perovskite
Depei Zhang, Xiao Hu, Tianran Chen +8
The long carrier lifetime and defect tolerance in metal halide perovskites (MHPs) are major contributors to the superb performance of MHP optoelectronic devices. Large polarons wer…
Spin dynamics of the antiferromagnetic Heisenberg model on a kagome bilayer
Preetha Saha, Depei Zhang, Seung-Hun Lee +1
We study the spin dynamics of classical Heisenberg antiferromagnet with nearest neighbor interactions on a quasi-two-dimensional kagome bilayer. This geometrically frustrated latti…
Memory effect and phase transition in a hierarchical trap model for spin glass
Depei Zhang, Tianran Chen, Marija Vucelja +2
We introduce an efficient dynamical tree method that enables us, for the first time, to explicitly demonstrate thermo-remanent magnetization memory effect in a hierarchical energy…
Aging, memory, and nonhierarchical energy landscape of spin jam
Anjana Samarakoon, Taku J. Sato, Tianran Chen +5
The notion of complex energy landscape underpins the intriguing dynamical behaviors in many complex systems ranging from polymers, to brain activity, to social networks and glass t…
Spin Jam: a quantum-fluctuation-induced glassy state of a frustrated magnet
Junjie Yang, Anjana Samarakoon, Sachith Dissanayake +8
Since the discovery of spin glasses in dilute magnetic systems, their study has been largely focused on understanding randomness and defects as the driving mechanism. The same para…
Rotational Dynamics of Organic Cations in CH3NH3PbI3 Perovskite
T. Chen, B. J. Foley, B. Ipek +5
Methylammonium lead iodide (CH3NH3PbI3) based solar cells have shown impressive power conversion efficiencies of above 20%. However, the microscopic mechanism of the high photovolt…
Spin reorientation in the square-lattice antiferromagnets RMnAsO (R = Ce, Nd): Density functional analysis of the spin exchange interactions between the rare-earth and transition-metal ions
Changhoon Lee, Erjun Kan, Hongjun Xiang +4
The spin reorientation (SR) phenomenon of the square-lattice antiferromagnets RMnAsO (R = Ce, Nd) was investigated by analyzing the spin exchange interactions between the rare-eart…
Quantum spin liquid states in the two dimensional kagome antiferromagnets, ZnxCu4-x(OD)6Cl2
S. -H. Lee, H. Kikuchi, Y. Qiu +4
A three-dimensional system of interacting spins typically develops static long-range order when it is cooled. If the spins are quantum (S = 1/2), however, novel quantum paramagneti…
Evolution of the low energy spin dynamics in electron-doped high-transition temperature superconductor Pr0.88LaCe0.12CuO4-d
Stephen D. Wilson, Shiliang Li, Pengcheng Dai +7
We use inelastic neutron scattering to explore the evolution of the low energy spin dynamics in the electron-doped cuprate Pr0.88LaCe0.12CuO4-d (PLCCO) as the system is tuned from…
Spin chirality on a two-dimensional frustrated lattice
D. Grohol, K. Matan, J. H. Cho +4
The collective behavior of interacting magnetic moments can be strongly influenced by the topology of the underlying lattice. In geometrically frustrated spin systems, interesting…
Continuum in the spin excitation spectrum of a Haldane chain (erratum)
I. A. Zaliznyak, S. -H. Lee, S. V. Petrov
There was a slight error in calculating the nonlinear sigma-model prediction for the 2-magnon scattering continuum shown in Fig. 2 of cond-mat/0010049, and Phys. Rev. Lett. {\bf 87…