CoAs: The line of 3d demarcation

被引：3

作者：

Campbell, Daniel J. ^{[1
]}

Wang, Limin ^{[1
]}

Eckberg, Chris ^{[1
]}

Graf, Dave ^{[2
]}

Hodovanets, Halyna ^{[1
]}

Paglione, Johnpierre ^{[1
,3
]}

机构：

[1] Univ Maryland, Dept Phys, Ctr Nanophys & Adv Mat, College Pk, MD 20742 USA

[2] Natl High Magnet Field Lab, 1800 East Paul Dirac Dr, Tallahassee, FL 32310 USA

[3] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada

来源：

PHYSICAL REVIEW B | 2018年 / 97卷 / 17期

基金：

美国国家科学基金会;

关键词：

THERMODYNAMIC PROPERTIES; ENTHALPY INCREMENTS; MAGNETIC-PROPERTIES; SINGLE-CRYSTAL; HEAT-CAPACITY; WEYL NODES; FERMI ARCS; CRAS; MNP; SUPERCONDUCTIVITY;

D O I：

10.1103/PhysRevB.97.174410

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transition metal-pnictide compounds have received attention for their tendency to combine magnetism and unconventional superconductivity. Binary CoAs lies on the border of paramagnetism and the more complex behavior seen in isostructural CrAs, MnP, FeAs, and FeP. Here we report the properties of CoAs single crystals grown with two distinct techniques along with density functional theory calculations of its electronic structure and magnetic ground state. While all indications are that CoAs is paramagnetic, both experiment and theory suggest proximity to a ferromagnetic instability. Quantum oscillations are seen in torque measurements up to 31.5 T and support the calculated paramagnetic Fermiology.

引用

页数：9

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