Crystal Growth and Magnetic Properties of Topological Nodal-Line Semimetal GdSbTe with Antiferromagnetic Spin Ordering.

We report crystal growth, AC and DC magnetic susceptibilities [(, )], magnetization [(, )], and heat capacity [(, )] measurement results of GdSbTe single crystal. GdSbTe is isostructural to the confirmed nonmagnetic nodal-line semimetal ZrSiS of noncentrosymmetric tetragonal crystal structure in space group 4/ (No. 129), but it shows additional long-range antiferromagnetic spin ordering for the Gd spins of = / below T.

GdTe: an antiferromagnetic semimetal.

We report high-precision magnetization ([Formula: see text]), magnetic susceptibility ([Formula: see text]), specific heat (C (T, H)) and 'zero-field' electrical resistivity, [Formula: see text], data taken on GdTe single crystal over wide ranges of temperature and magnetic field (H), with either [Formula: see text]-axis or [Formula: see text]-plane. [Formula: see text] and [Formula: see text] unambiguously establish that the b-axis is the easy direction of magnetization whereas any direction in the ac-plane is a hard direction. The [Formula: see text]-type anomaly in 'zero-field' specific heat, C (T, H  =  0), and an abrupt drop in [Formula: see text] (characteristic of the paramagnetic (PM) - antiferromagnetic (AFM) phase transition) are observed at the Néel temperature, [Formula: see text] K.

Anisotropic magnetotransport and extremely large magnetoresistance in NbAs single crystals.

We report the extremely large magnetoresistance and anisotropic magnetoresistance in a non-magnetic semimetallic NbAs single crystal. Unsaturated transverse XMR with quadratic field dependence has been observed to be ~3 × 10 % at 2 K and 15 T. Up to 12.

Crystal growth and transport properties of Weyl semimetal TaAs.

We report the single crystal growth and transport properties of a Weyl semimetal TaAs. Unsaturated large magnetoresistance of about 22 100% at 2 K and 9 T is observed. From the Hall measurement, carrier concentrations n  =  4.