Understanding magnetic relaxation in single-ion magnets with high blocking temperature

A Chiesa, F Cugini, R Hussain, E Macaluso, G Allodi… - Physical Review B, 2020 - APS
The recent discovery of single-ion magnets with magnetic hysteresis above liquid-nitrogen
temperatures placed these compounds among the best candidates to realize high-density …

Gallery of soft modes: Theory and experiment at a ferromagnetic quantum phase transition

PCE Stamp, DM Silevitch, M Libersky, R McKenzie… - Physical Review B, 2024 - APS
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 …

Spin relaxation and resonant phonon trapping in [Gd 2 (fum) 3 (H 2 O) 4]⋅ 3 H 2 O

M Orendáč, L Sedláková, E Čižmár, A Orendáčová… - Physical Review B …, 2010 - APS
Results of ac-susceptibility, specific-heat, magnetization, and electron-spin-resonance
studies of a [Gd 2 (fum) 3 (H 2 O) 4]⋅ 3 H 2 O (fum= fumarate, C 4 H 2 O 4) powder samples …

Direct observation of hyperfine level anticrossings in the optical spectra of a single crystal

KN Boldyrev, MN Popova, BZ Malkin, NM Abishev - Physical Review B, 2019 - APS
We have investigated the hyperfine structure in high-resolution broadband optical
absorption spectra of a strongly diluted paramagnet LiYF 4 7: Ho 3+(0.1 at.%) in external …

Derivation of the low- phase diagram of : A dipolar quantum Ising magnet

M Schechter, PCE Stamp - Physical Review B—Condensed Matter and …, 2008 - APS
The LiHo x Y 1− x F 4 compound is widely considered to be the archetypal dipolar quantum
Ising system, with longitudinal dipolar interactions V ijzz between Ho spins {i, j} competing …

Semi-ab initio calculations of superposition model and crystal field parameters for Co2+ ions using the exchange charge model

MG Brik, YY Yeung - Journal of Physics and Chemistry of Solids, 2008 - Elsevier
This paper attempts for the first time to establish a reliable linkage between the two well-
known and independent models of crystal field (CF), namely the exchange charge (ECM) …

Phonon-mediated spin-flipping mechanism in the spin ices and

M Ruminy, S Chi, S Calder, T Fennell - Physical Review B, 2017 - APS
To understand emergent magnetic monopole dynamics in the spin ices Ho 2 Ti 2 O 7 and Dy
2 Ti 2 O 7, it is necessary to investigate the mechanisms by which spins flip in these …

Hyperfine structure in the spectra of the singlet–singlet transitions of Ho3+: 7LiYF4 in a magnetic field

KN Boldyrev, BZ Malkin, MN Popova - Journal of Luminescence, 2022 - Elsevier
We report high-resolution infrared Zeeman spectra in the region of transitions between
electronic singlets of the ground 5 I 8 and the first excited 5 I 7 crystal-field manifolds of Ho …

Random strain effects in optical and EPR spectra of electron-nuclear excitations in CaWO 4: Ho 3+ single crystals

GS Shakurov, EP Chukalina, MN Popova… - Physical Chemistry …, 2014 - pubs.rsc.org
We study paramagnetic Ho3+ centers in CaWO4, a promising material for applications in
quantum electronics and quantum information devices. Oriented single crystals with nominal …

Spectroscopy and Calculations for 4fN → 4fN–15d Transitions of Lanthanide Ions in K3YF6

CG Ma, MG Brik, W Ryba-Romanowski… - The Journal of …, 2012 - ACS Publications
In the present work, we report on the combined experimental and theoretical studies of the 4f–
5d spectra of Ce3+, Pr3+, Nd3+, Eu3+, Gd3+, Tb3+, Dy3+, and Er3+ ions in a newly …