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papers

Publications (10)

cond-mat.supr-con2014

Evolution of the superconducting energy gap structure concomitant with Fermi surface reconstruction in the heavy-fermion superconductor CeCoIn5

Hyunsoo Kim, M. A. Tanatar, R. Flint +6

The London penetration depth, $I^» (T)$ was measured in single crystals of Ce $_{1 - x} R_{x}$ CoIn $_{5}$ , $R$ =La, Nd and Yb down to 50~mK ( $T_{c} / T \sim$ 50) using a tunnel-diode resonator. In…

cond-mat.str-el2025

Distinct effect of Kondo physics on crystal field splitting in electron and spin spectroscopies

M. KornjaÄa, R. Flint

Magnetic anisotropy is a key feature of rare earth materials from permanent magnets to heavy fermions. We explore the complex interplay of Kondo physics and anisotropy, and their e…

cond-mat.str-el2023

Short-range magnetic correlations in quasicrystalline i-Tb-Cd

P. Das, A. Kreyssig, G. S. Tucker +11

We report on elastic and inelastic neutron scattering from single-grain isotopically-enriched samples to elucidate the local magnetic correlations between Tb $^{3 +}$ moments in quas…

cond-mat.str-el2010

Analysis of magnetization and a spin state crossover in the multiferroic Ca $_{3}$ Co $_{2 - x}$ Mn $_{x}$ O $_{6}$

R. Flint, H. -T. Yi, P. Chandra +2

Ca_3Co_{2-x}Mn_xO_6 (x ~ 0.96) is a multiferroic with spin-chains of alternating Co(2+) and Mn(4+) ions. The spin state of Co(2+) remains unresolved, due to a discrepancy between h…

cond-mat.mtrl-sci2025

Accurate calculation of light rare-earth magnetic anisotropy with density functional theory

Liqin Ke, R. Flint, Y. Lee

Density functional theory (DFT) has long struggled to treat light rare-earth magnetism. We show that this difficulty arises from an overestimate of the $4 f$ charge asphericity, and…

cond-mat.str-el2024

Double-domed temperature-pressure phase diagram found for CePd3S4

S. Huyan, T. J. Slade, H. Wang +5

CePd3S4 exhibits interplay between ferromagnetism (FM), quadrupolar order, and the Kondo effect at low temperatures with a FM transition temperature that is much higher than the va…

cond-mat.mtrl-sci2024

Toward a first-principles theory of rare-earth ions in crystals

Y. Lee, Z. Ning, R. Flint +3

Density functional theory (DFT), including its extensions designed to treat strongly correlated localized electron systems such as DFT+ $U$ and DFT+dynamical mean field theory, has…

cond-mat.str-el2015

Remarkably robust and correlated coherence and antiferromagnetism in (Ce $_{1 - x}$ La $_{x}$ )Cu $_{2}$ Ge $_{2}$

H. Hodovanets, S. L. Bud'ko, W. E. Straszheim +5

We present magnetic susceptibility, resistivity, specific heat, and thermoelectric power measurements on (Ce $_{1 - x}$ La $_{x}$ )Cu $_{2}$ Ge $_{2}$ single crystals (0 $\leq x \leq$ 1). With La…

cond-mat.str-el2016

Double stage nematic bond-ordering above double stripe magnetism: application to BaTi $_{2}$ Sb $_{2}$ O

G. Zhang, J. K. Glasbrenner, R. Flint +2

Spin-driven nematicity, or the breaking of the point-group symmetry of the lattice without long-range magnetic order, is clearly quite important in iron-based superconductors. From…

cond-mat.str-el2016

Evidence of an odd-parity hidden order in a spin-orbit coupled correlated iridate

L. Zhao, D. H. Torchinsky, H. Chu +6

A rare combination of strong spin-orbit coupling and electron-electron correlations makes the iridate Mott insulator Sr $_{2}$ IrO $_{4}$ a promising host for novel electronic phases of m…