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First Observation of Low-Temperature Magnetic Transition in CuAgSe

Journal Article


Abstract


  • In this Article, the temperature-dependent magnetic properties of CuAgSe pellet sintered from surfactant-free CuAgSe nanoparticles synthesized by a wet chemistry method were investigated in the temperature range of 4-300 K. A magnetic transition between diamagnetism and weak ferromagnetism is observed at around 60-70 K. The results from magnetic measurements under different machines/magnetic fields, room-Temperature X-ray photoelectron spectroscopy, and temperature-dependent nuclear magnetic resonance all demonstrate that this magnetic transition is an intrinsic property rather than an effect of impurities. Combining these results with temperature-dependent neutron diffraction, the origin of the weak ferromagnetism is ascribed to a structural crossover-induced canted antiferromagnetism and possible deviation of Cu valence. The transition is strongly dependent on the sintering temperature and pressure, which could induce the structural phase transition.

Publication Date


  • 2018

Citation


  • Han, C., Ding, Q., Zhang, L., Li, W., Wang, J., Gu, Q., Sun, Q., Furukawa, Y., Dou, S., Cheng, Z. & Li, Z. (2018). First Observation of Low-Temperature Magnetic Transition in CuAgSe. The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter, 122 (33), 19139-19145.

Scopus Eid


  • 2-s2.0-85052367614

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3229

Number Of Pages


  • 6

Start Page


  • 19139

End Page


  • 19145

Volume


  • 122

Issue


  • 33

Place Of Publication


  • United States

Abstract


  • In this Article, the temperature-dependent magnetic properties of CuAgSe pellet sintered from surfactant-free CuAgSe nanoparticles synthesized by a wet chemistry method were investigated in the temperature range of 4-300 K. A magnetic transition between diamagnetism and weak ferromagnetism is observed at around 60-70 K. The results from magnetic measurements under different machines/magnetic fields, room-Temperature X-ray photoelectron spectroscopy, and temperature-dependent nuclear magnetic resonance all demonstrate that this magnetic transition is an intrinsic property rather than an effect of impurities. Combining these results with temperature-dependent neutron diffraction, the origin of the weak ferromagnetism is ascribed to a structural crossover-induced canted antiferromagnetism and possible deviation of Cu valence. The transition is strongly dependent on the sintering temperature and pressure, which could induce the structural phase transition.

Publication Date


  • 2018

Citation


  • Han, C., Ding, Q., Zhang, L., Li, W., Wang, J., Gu, Q., Sun, Q., Furukawa, Y., Dou, S., Cheng, Z. & Li, Z. (2018). First Observation of Low-Temperature Magnetic Transition in CuAgSe. The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter, 122 (33), 19139-19145.

Scopus Eid


  • 2-s2.0-85052367614

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3229

Number Of Pages


  • 6

Start Page


  • 19139

End Page


  • 19145

Volume


  • 122

Issue


  • 33

Place Of Publication


  • United States