Imaging Cooper pairing of heavy fermions in CeCoIn5

MP Allan, F Massee, DK Morr, J Van Dyke, AW Rost… - Nature physics, 2013 - nature.com
The Cooper pairing mechanism of heavy fermionsuperconductors,,,, long thought to be due
to spin fluctuations,,, has not yet been determined. It is the momentum space (k-space) …

Visualizing nodal heavy fermion superconductivity in CeCoIn5

BB Zhou, S Misra, EH da Silva Neto, P Aynajian… - Nature physics, 2013 - nature.com
Understanding the origin of superconductivity in strongly correlated electron systems
continues to be at the forefront of the unsolved problems of physics. Among the heavy f …

Classification of topological crystalline superconducting nodes on high-symmetry lines: Point nodes, line nodes, and Bogoliubov Fermi surfaces

S Sumita, T Nomoto, K Shiozaki, Y Yanase - Physical Review B, 2019 - APS
Recent development in exact classification of a superconducting gap has elucidated various
unconventional gap structures, which have not been predicted by the classification of order …

: Reentrant Spin Glass and Superconductivity

S Zapf, HS Jeevan, T Ivek, F Pfister, F Klingert, S Jiang… - Physical review …, 2013 - APS
By systematic investigations of the magnetic, transport, and thermodynamic properties of
single crystals of EuFe 2 (As 1-x P x) 2 (0≤ x≤ 1), we explore the complex interplay of …

Direct evidence for a magnetic f-electron–mediated pairing mechanism of heavy-fermion superconductivity in CeCoIn5

JS Van Dyke, F Massee, MP Allan… - Proceedings of the …, 2014 - National Acad Sciences
To identify the microscopic mechanism of heavy-fermion Cooper pairing is an unresolved
challenge in quantum matter studies; it may also relate closely to finding the pairing …

Nature of quasiparticle interference in three dimensions

LC Rhodes, W Osmolska, CA Marques, P Wahl - Physical Review B, 2023 - APS
Quasiparticle interference (QPI) imaging is a powerful tool for the study of the low-energy
electronic structure of quantum materials. However, the measurement of QPI by scanning …

Enhancement of magnetic stripe order in iron-pnictide superconductors from the interaction between conduction electrons and magnetic impurities

MN Gastiasoro, BM Andersen - Physical review letters, 2014 - APS
Recent experimental studies have revealed several unexpected properties of Mn-doped
BaFe 2 As 2. These include extension of the stripelike magnetic (π, 0) phase to high …

Varying Eu magnetic order by chemical pressure in EuFe(AsP)

S Zapf, D Wu, L Bogani, HS Jeevan, P Gegenwart… - Physical Review B …, 2011 - APS
Based on low-field magnetization measurements on a series of single crystals, we present a
scheme of the Eu 2+ spin alignment in EuFe 2 (As 1− x P x) 2. We explain observations of …

Persistent Detwinning of Iron-Pnictide Crystals by Small External Magnetic Fields

S Zapf, C Stingl, KW Post, J Maiwald, N Bach… - Physical Review Letters, 2014 - APS
Our comprehensive study on EuFe 2 As 2 reveals a dramatic reduction of magnetic
detwinning fields compared to other A Fe 2 As 2 (A= Ba, Sr, Ca) iron pnictides by indirect …

Possible realization of an antiferromagnetic Griffiths phase in Ba(FeMn)As

DS Inosov, G Friemel, JT Park, AC Walters… - Physical Review B …, 2013 - APS
We investigate magnetic ordering in metallic Ba (Fe 1− x Mn x) 2 As 2 and discuss the
unusual magnetic phase, which was recently discovered for Mn concentrations x> 10%. We …