Graf D, Choi E S, Brooks J S, Matos M, Henriques R T, Almeida M
NHMFL/Physics, Florida State University, Tallahassee, Florida 32310, USA.
Phys Rev Lett. 2004 Aug 13;93(7):076406. doi: 10.1103/PhysRevLett.93.076406.
The quasi-one-dimensional organic conductor (Per)2Pt(mnt)2 exhibits a charge density wave ground state below 8 K. Magnetoresistance and magnetization measurements show that the charge density wave is suppressed with magnetic fields of order 20 T, above which a high resistance state, with a cascade of subphases, appears. This new state, tentatively identified as a field induced charge density wave, reenters a low resistance state above 40 T. The results are presented in light of theoretical work [D. Zanchi et al. Phys. Rev. B 53, 1240 (1996)]] involving field induced charge density wave ground states in high magnetic fields.
准一维有机导体(Per)2Pt(mnt)2在8K以下呈现电荷密度波基态。磁电阻和磁化测量表明,在约20T的磁场下电荷密度波受到抑制,高于此磁场时会出现具有一系列亚相的高电阻态。这种新状态初步确定为场致电荷密度波,在高于40T时又重新进入低电阻态。根据涉及高磁场中场致电荷密度波基态的理论工作[D. 赞奇等人,《物理评论B》53, 1240 (1996)]给出了这些结果。