Spiral spin structures of RMn6Ge6 (R=Gd, Tb, Dy) |
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| Institution: | 1. Physikalisches Institut, Universität Karlsruhe (TH), D-76128 Karlsruhe, Germany;2. Van der Waals-Zeeman Laboratorium, Universiteit van Amsterdam, Postbus 20215, NL-1000 HE, Amsterdam, Netherlands;1. MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;2. Fundamental Aspects of Materials and Energy (FAME), Faculty of Applied Sciences, Delft University of Technology, Mekelweg 15, 2629 JB Delft, the Netherlands;1. Department of Physics, University of Lakki Marwat, Lakki Marwat, 28420 KPK, Pakistan;2. College of Physics and Optoelectronics, Shenzhen University, Shenzhen, PR China;3. Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21099, Saudi Arabia;4. Department of Physics, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;5. Henan Key Laboratory of Electronic Ceramic Materials and Application, Henan University of Engineering, Zhengzhou 451191, PR China;6. Department of Physics, University of Buner, Buner 17290, Pakistan;7. Department of Mathematics, University of Lakki Marwat, Lakki Marwat, 28420 KPK, Pakistan;8. School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, PR China;9. Department of Physics, Riphah International University, 13 Raiwind Road, Lahore 54000, Pakistan;10. Department of Pediatrics, Yale School of Medicine yale University, New Haven, CT 0651, USA;11. Department of Physics, University of Poonch, Rawalakot, Pakistan;12. Department of Physics, Abdul Wali Khan University Mardan, 23200 KPK, Pakistan;1. CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People’s Republic of China;2. School of Physical Science and Technology, Ningbo University, Ningbo 315211, People’s Republic of China;3. Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China;4. Analytical Center, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People’s Republic of China;5. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China;1. UGC-DAE Consortium for Scientific Research, Kolkata Centre, Sector III, LB-8, Salt Lake, Kolkata 700 106, India;2. School of Physical Sciences, Indian Institute of Technology Goa, Ponda 403401, Goa, India;3. Dresden High Magnetic Field Laboratory (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany;4. Institut Laue-Langevin, 71 avenue des Martyrs, 38042 Grenoble Cedex 9, France;5. ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, United Kingdom;6. Highly Correlated Matter Research Group, Physics Department, University of Johannesburg, PO Box 524, Auckland, South Africa |
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| Abstract: | The field dependences of the magnetic moment of several GdXY1−XMn6Ge6 compounds have been analysed by a mean-field theory of several spin structures. The assumption of spiral spin structures at low temperatures in these compounds has been confirmed. In addition to this, the magnetic phase diagrams of TbMn6Ge6 and DyMn6Ge6 have been deduced from magnetisation measurements of powder samples. In contrast to GdMn6Ge6, the crystal fields of these compounds produce a variety of additional spin phases. |
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