6 papers
Spin correlations, low-energy scales, and anisotropy scaling in kagome frustrated magnets
Phillip Popp, Stephan Rosenkranz, Arthur P. Ramirez +1
Neutron scattering is central to identifying quantum states of magnetic materials. In the search for quantum spin liquids, broad spectral features of inelastic spectra have been ci…
A footprint of zero-point entropy in higher-temperature magnetic thermodynamics
Sergey Syzranov, Arthur P. Ramirez
Identifying extensively degenerate zero-temperature states is key in characterizing spin-liquid-candidate materials and spin ices. In experiments, finding zero-point entropy (ZPE)…
Low-temperature entropies and possible states in geometrically frustrated magnets
Siyu Zhu, Arthur P. Ramirez, Sergey Syzranov
The entropy that an insulating magnetic material releases upon cooling can reveal important information about the properties of spin states in that material. In many geometrically…
Origin of the hidden energy scale and the -ratio in geometrically frustrated magnets
Phillip Popp, Arthur P. Ramirez, Sergey Syzranov
Sufficiently clean geometrically frustrated (GF) magnets are the largest class of candidate materials that may host quantum spin liquids (QSLs). Some of them have been shown to exh…
Short-range order and hidden energy scale in geometrically frustrated magnets
Arthur P. Ramirez, Sergey Syzranov
In geometrically frustrated (GF) magnets, conventional long-range order is suppressed due to the presence of primitive triangular structural units, and the nature of the ensuing gr…
Quasispins of vacancy defects and their interactions in disordered antiferromagnets
Muhammad Sedik, Shijun Sun, Arthur P. Ramirez +1
Vacancy defects in disordered magnetic materials are known to act as effective spins, ``quasispins'', in response to an external magnetic field. In the dilute limit, the contributi…