Dresden 2020 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 4: Complex Oxides: Bulk Properties (jointly with DS, HL, KFM, MA, O) (joint session TT/HL/MA)

HL 4.1: Vortrag

Montag, 16. März 2020, 09:30–09:45, HSZ 201

Single-crystal growth and magnetic phase diagram of TbFeO₃ — •Alexander Engelhardt¹, Georg Benka¹, Christian Oberleitner¹, Andreas Bauer¹, Andreas Erb², and Christian Pfleiderer¹ — ¹Physik Department E51, Technische Universität München, 85748 Garching, Germany — ²Walther-Meißner-Institut, Walther-Meißner-Str. 8, 85748 Garching, Germany

Single crystals of the multiferroic rare earth orthoferrite TbFeO₃ were synthesized by means of optical float-zoning. The magnetization, the longitudinal and the transverse ac susceptibility, as well as the specific heat were measured at low temperatures under large applied magnetic fields to determine the complex, anisotropic magnetic phase diagram of TbFeO₃ along the three major crystallographic axes. Taken together, our data are consistent with previous studies reported in the literature. As a new result we identify clear evidence in the bulk properties of the formation of a soliton lattice in a small temperature range, so far observed by means of neutron scattering only.