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Huang SM, Wang PC, Hung KY, Cheng FE, Li CY, Chou M. On the Paramagnetic-Like Susceptibility Peaks at Zero Magnetic Field in [Formula: see text] Single Crystals. Nanoscale Res Lett 2022; 17:107. [PMID: 36355312 PMCID: PMC9649580 DOI: 10.1186/s11671-022-03743-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
A weakly temperature-dependent paramagnetic-like susceptibility peak at zero magnetic field is observed in [Formula: see text] with only marginal amount of ferromagnetic impurities. The ferromagnetic hysteresis loop and the magnetic moment splitting between zero-field-cooled and field-cooled processes indicate ferromagnetism in the samples. The paramagnetic-like susceptibility peak height is proportional to the remanent magnetic moment of hysteresis loops. High-resolution transmission electron microscope image supports that the observed ferromagnetic feature originates from lattice distortion. These results imply that the weakly temperature-dependent paramagnetic-like susceptibility peak originates from weak lattice distortion and/or superparamagnetism.
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Affiliation(s)
- Shiu-Ming Huang
- Department of Physics, National Sun Yat-Sen University, 80424 Kaohsiung, Taiwan
- Center of Crystal Research, National Sun Yat-Sen University, 80424 Kaohsiung, Taiwan
| | - Pin-Cing Wang
- Department of Physics, National Sun Yat-Sen University, 80424 Kaohsiung, Taiwan
| | - Kuo-Yi Hung
- Department of Physics, National Sun Yat-Sen University, 80424 Kaohsiung, Taiwan
| | - Fu-En Cheng
- Department of Physics, National Sun Yat-Sen University, 80424 Kaohsiung, Taiwan
| | - Chang-Yu Li
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, 80424 Kaohsiung, Taiwan
| | - Mitch Chou
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, 80424 Kaohsiung, Taiwan
- Center of Crystal Research, National Sun Yat-Sen University, 80424 Kaohsiung, Taiwan
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Huang SM, Wang PC, Chen PC, Hong JL, Cheng CM, Jian HL, Yan YJ, Yu SH, Chou MMC. The Singularity Paramagnetic Peak of Bi 0.3Sb 1.7Te 3 with p-type Surface State. Nanoscale Res Lett 2022; 17:12. [PMID: 35032238 PMCID: PMC8761187 DOI: 10.1186/s11671-021-03650-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 12/30/2021] [Indexed: 06/14/2023]
Abstract
The magnetization measurement was performed in the Bi0.3Sb1.7Te3 single crystal. The magnetic susceptibility revealed a paramagnetic peak independent of the experimental temperature variation. It is speculated to be originated from the free-aligned spin texture at the Dirac point. The ARPES reveals that the Fermi level lies below the Dirac point. The Fermi wavevector extracted from the de Haas-van Alphen oscillation is consistent with the energy dispersion in the ARPES. Our experimental results support that the observed paramagnetic peak in the susceptibility curve does not originate from the free-aligned spin texture at the Dirac point.
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Affiliation(s)
- Shiu-Ming Huang
- Department of Physics, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
- Taiwan Consortium of Emergent Crystalline Materials, TCECM, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
- Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
| | - Pin-Cing Wang
- Department of Physics, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
| | - Pin-Cyuan Chen
- Department of Physics, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
| | - Jai-Long Hong
- Department of Physics, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
| | - Cheng-Maw Cheng
- National Synchrotron Radiation Research Center, Hsin-Chiu, 80076 Taiwan
| | - Hao-Lun Jian
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
| | - You-Jhih Yan
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
| | - Shih-Hsun Yu
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
| | - Mitch M. C. Chou
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
- Taiwan Consortium of Emergent Crystalline Materials, TCECM, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
- Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung, 80424 Taiwan
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