New Gd-based magnetic compound GdPt${}_2$B with a chiral crystal structure

Abstract

Herein, we report the discovery of a novel Gd-based magnetic compound GdPt${}_2$B with a chiral crystal structure. X-ray diffraction and chemical composition analyses reveal a CePt${}_2$B-type crystal structure (space group: $P{6}_{4}22$) for GdPt${}_2$B. Moreover, we successfully grew single crystals of GdPt${}_2$B using the Czochralski method. Magnetization measurements and the Curie$-$Weiss analysis demonstrate that the ferromagnetic interaction is dominant in GdPt${}_2$B. A clear transition is observed in the temperature dependence of electrical resistivity, magnetic susceptibility, and specific heat at $T_{\mathrm{O}}$ = 87 K. The magnetic phase diagram of GdPt${}_2$B, which consists of a field-polarized ferromagnetic region and a magnetically ordered region, resembles those of known chiral helimagnets. Furthermore, magnetic susceptibility measurements reveal a possible spin reorientation within the magnetically ordered phase in magnetic fields perpendicular to the screw axis. The results demonstrate that GdPt${}_2$B is a suitable platform for investigating the competing effects of ferromagnetic and antisymmetric exchange interactions in rare-earth-based chiral compounds.

arXiv comment9 pages, 7 figures. To be published in Phys. Rev. Materials

References in corpus (12)

• Skyrmion Lattice in a Chiral Magnet
• Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet
• Skyrmion phase and competing magnetic orders on a breathing kagome lattice
• Magnetic phase transitions in single crystals of the chiral helimagnet Cr1/3NbS2
• Anomalous Hall resistivity and possible topological Hall effect in the EuAl${}_4$ antiferromagnet
• Field-induced Commensurate-Incommensurate phase transition in a Dzyaloshinskii-Moriya spiral antiferromagnet
• Chiral Soliton Lattice Formation in Monoaxial Helimagnet Yb(Ni${}_{1-x}$Cu${}_x$)${}_3$Al${}_9$
• Field-induced incommensurate-to-commensurate transition in Ba_2CuGe_2O_7
• Giant topological and planar Hall effect in Cr${}_{1/3}$NbS${}_2$
• Topological spin dynamics in cubic FeGe near room temperature
• Short-range Magnetic Ordering in the Geometrically Frustrated Layered Compound YBaCo4O7 with an Extended Kagomé Structure
• Structural, magnetic and electric polarization properties of geometrically frustrated YBaCo4O7 and DyBaCo4O7 cobaltites

Cited by in corpus (3)

• Monoaxial Dzyaloshinskii-Moriya interaction-induced topological Hall effect in a new chiral-lattice magnet GdPt${}_2$B
• Discovery of antiferromagnetic chiral helical ordered state in trigonal GdNi${}_3$Ga${}_9$
• Chiral symmetry and magnetism in a 3D Kagome lattice: RPt${}_2$B (R = La and Nd) prototype crystals