Magnetic field induced reconstruction of electronic structure in Sr3Ru2O7 nanosheets

doi:10.1103/PhysRevB.102.195119

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	Magnetic field induced reconstruction of electronic structure in Sr3Ru2O7 nanosheets
	Chu, Weiwei ; Wang, Ning ; Liu, Yan ; Wang, Yu ; Liu, Guoqiang ; Han, Yuyan ; Hao, Ning ; Qu, Zhe ; Yang, Jiyong ; Xue, Fei
刊名	PHYSICAL REVIEW B
	2020
卷号	102 期号:19
关键词	PHASE-FORMATION QUANTUM CRITICALITY METAL SR2RUO4
DOI	10.1103/PhysRevB.102.195119
英文摘要	The origin of the large magnetoresistance (MR) peak induced by the metamagnetic transition (MMT) in Sr3Ru2O7 has attracted extensive attention, but still remains puzzling. Here we performed systematic magnetotransport and torque magnetometry measurements of Sr3Ru2O7 nanosheets, and found surprisingly that the MR peak, together with the MMT, shifts dramatically toward low magnetic field with the decrease of thickness. Meanwhile, the Hall coefficient shows clearly a sign change near the MR peak position, indicating a magnetic field induced change of band topology. Combined with the theoretical calculation, we argue that the nature of the MR peak in Sr3Ru2O7 is associated with the so-called Lifshitz transition due to van Hove singularity, which is closer to the Fermi level in thinner nanosheets.
学科主题	Materials Science ; Physics
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20353]
专题	2020专题
作者单位	1.Yang, JY 2.Tian, ML (corresponding author), Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China. 3.Yang, JY (corresponding author), Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China. 4.Tian, ML (corresponding author), Anhui Univ, Sch Phys & Mat Sci, Hefei 230601, Anhui, Peoples R China. 5.Tian, ML (corresponding author), Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China.
推荐引用方式 GB/T 7714	Chu, Weiwei,Wang, Ning,Liu, Yan,et al. Magnetic field induced reconstruction of electronic structure in Sr3Ru2O7 nanosheets[J]. PHYSICAL REVIEW B,2020,102(19).
APA	Chu, Weiwei.,Wang, Ning.,Liu, Yan.,Wang, Yu.,Liu, Guoqiang.,...&Tian, Mingliang.(2020).Magnetic field induced reconstruction of electronic structure in Sr3Ru2O7 nanosheets.PHYSICAL REVIEW B,102(19).
MLA	Chu, Weiwei,et al."Magnetic field induced reconstruction of electronic structure in Sr3Ru2O7 nanosheets".PHYSICAL REVIEW B 102.19(2020).