Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2 V2 O8 in a Transverse Magnetic Field

Y. Cui; H. Zou; N. Xi; Zhangzhen He; Y. X. Yang; L. Shu; G. H. Zhang; Z. Hu; T. Chen; Rong Yu; Jianda Wu; Weiqiang Yu

doi:10.1103/PhysRevLett.123.067203

Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2 V2 O8 in a Transverse Magnetic Field

Y. Cui
, H. Zou
, N. Xi
, Zhangzhen He
, Y. X. Yang
, L. Shu
, G. H. Zhang
, Z. Hu
, T. Chen
, Rong Yu
, Jianda Wu
, Weiqiang Yu

Renmin University of China
Shanghai Jiao Tong University
CAS - Fujian Institute of Research on the Structure of Matter
State Key Laboratory of Surface Physics
Fudan University
Collaborative Innovation Center of Advanced Microstructures
Tsung-Dao Lee Institute and School of Physics and Astronomy

科研成果: 期刊稿件 › 文章 › 同行评审

66 引用（Scopus）

摘要

The quantum criticality of an Ising-like screw chain antiferromagnet SrCo2V2O8, with a transverse magnetic field applied along the crystalline a axis, is investigated by ultralow temperature NMR measurements. The Néel temperature is rapidly and continuously suppressed by the field, giving rise to a quantum critical point (QCP) at HC1≈7.03 T. Surprisingly, a second QCP at HC2≈7.7 T featured with gapless excitations is resolved from both the double-peak structure of the field-dependent spin-lattice relaxation rate 1/T511 at low temperatures and the weakly temperature-dependent 1/T511 at this field. Our data, combined with numerical calculations, suggest that the induced effective staggered transverse field significantly lowers the critical fields, and leads to an exposed QCP at HC2, which belongs to the one-dimensional transverse-field Ising universality.

源语言	英语
期刊论文编号	067203
期刊	Physical Review Letters
卷	123
期	6
DOI	https://doi.org/10.1103/PhysRevLett.123.067203
出版状态	已出版 - 9 8月 2019
已对外发布	是

访问文件

10.1103/PhysRevLett.123.067203

其它文件与链接

链接到 Scopus 的出版物

引用此

@article{9253e597f36a4bbbafa6dfc6624e0068,

title = "Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2 V2 O8 in a Transverse Magnetic Field",

abstract = "The quantum criticality of an Ising-like screw chain antiferromagnet SrCo2V2O8, with a transverse magnetic field applied along the crystalline a axis, is investigated by ultralow temperature NMR measurements. The N{\'e}el temperature is rapidly and continuously suppressed by the field, giving rise to a quantum critical point (QCP) at HC1≈7.03 T. Surprisingly, a second QCP at HC2≈7.7 T featured with gapless excitations is resolved from both the double-peak structure of the field-dependent spin-lattice relaxation rate 1/T511 at low temperatures and the weakly temperature-dependent 1/T511 at this field. Our data, combined with numerical calculations, suggest that the induced effective staggered transverse field significantly lowers the critical fields, and leads to an exposed QCP at HC2, which belongs to the one-dimensional transverse-field Ising universality.",

author = "Y. Cui and H. Zou and N. Xi and Zhangzhen He and Yang, \{Y. X.\} and L. Shu and Zhang, \{G. H.\} and Z. Hu and T. Chen and Rong Yu and Jianda Wu and Weiqiang Yu",

note = "Publisher Copyright: {\textcopyright} 2019 American Physical Society.",

year = "2019",

month = aug,

day = "9",

doi = "10.1103/PhysRevLett.123.067203",

language = "英语",

volume = "123",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2 V2 O8 in a Transverse Magnetic Field

AU - Cui, Y.

AU - Zou, H.

AU - Xi, N.

AU - He, Zhangzhen

AU - Yang, Y. X.

AU - Shu, L.

AU - Zhang, G. H.

AU - Hu, Z.

AU - Chen, T.

AU - Yu, Rong

AU - Wu, Jianda

AU - Yu, Weiqiang

PY - 2019/8/9

Y1 - 2019/8/9

N2 - The quantum criticality of an Ising-like screw chain antiferromagnet SrCo2V2O8, with a transverse magnetic field applied along the crystalline a axis, is investigated by ultralow temperature NMR measurements. The Néel temperature is rapidly and continuously suppressed by the field, giving rise to a quantum critical point (QCP) at HC1≈7.03 T. Surprisingly, a second QCP at HC2≈7.7 T featured with gapless excitations is resolved from both the double-peak structure of the field-dependent spin-lattice relaxation rate 1/T511 at low temperatures and the weakly temperature-dependent 1/T511 at this field. Our data, combined with numerical calculations, suggest that the induced effective staggered transverse field significantly lowers the critical fields, and leads to an exposed QCP at HC2, which belongs to the one-dimensional transverse-field Ising universality.

AB - The quantum criticality of an Ising-like screw chain antiferromagnet SrCo2V2O8, with a transverse magnetic field applied along the crystalline a axis, is investigated by ultralow temperature NMR measurements. The Néel temperature is rapidly and continuously suppressed by the field, giving rise to a quantum critical point (QCP) at HC1≈7.03 T. Surprisingly, a second QCP at HC2≈7.7 T featured with gapless excitations is resolved from both the double-peak structure of the field-dependent spin-lattice relaxation rate 1/T511 at low temperatures and the weakly temperature-dependent 1/T511 at this field. Our data, combined with numerical calculations, suggest that the induced effective staggered transverse field significantly lowers the critical fields, and leads to an exposed QCP at HC2, which belongs to the one-dimensional transverse-field Ising universality.

UR - https://www.scopus.com/pages/publications/85070537656

U2 - 10.1103/PhysRevLett.123.067203

DO - 10.1103/PhysRevLett.123.067203

M3 - 文章

C2 - 31491156

AN - SCOPUS:85070537656

SN - 0031-9007

VL - 123

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

M1 - 067203

ER -

Quantum Criticality of the Ising-like Screw Chain Antiferromagnet SrCo2 V2 O8 in a Transverse Magnetic Field

摘要

访问文件

其它文件与链接

学术指纹

引用此