Pressure-induced quantum phase transition in the quantum antiferromagnet CsFeCl3

被引：20

作者：

Hayashida, Shohei ^{[1
]}

Zaharko, Oksana ^{[2
]}

Kurita, Nobuyuki ^{[3
]}

Tanaka, Hidekazu ^{[3
]}

Hagihala, Masato ^{[1
]}

Soda, Minoru ^{[1
]}

Itoh, Shinichi ^{[4
]}

Uwatoko, Yoshiya ^{[1
]}

Masuda, Takatsugu ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

[2] Paul Scherrer Inst, Lab Neutron Scattering & Imaging, CH-5232 Villigen, Switzerland

[3] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

[4] High Energy Accelerator Res Org, Neutron Sci Div, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan

来源：

PHYSICAL REVIEW B | 2018年 / 97卷 / 14期

基金：

日本学术振兴会;

关键词：

GAP SYSTEM TLCUCL3; HIGH-TEMPERATURE SUPERCONDUCTIVITY; BOSE-EINSTEIN CONDENSATION; MAGNETIC-STRUCTURES; CRITICALITY; SCATTERING; PHYSICS; XY;

D O I：

10.1103/PhysRevB.97.140405

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the pressure-induced quantum phase transition in the singlet-ground-state antiferromagnet CsFeCl3. Neutron diffraction experiments under pressure evidence the magnetic long-range order at low temperatures. Magnetic structure analysis reveals a 120 degrees structure with a propagation vector of k(mag) = (1/3,1/3,0). The estimated critical exponent of the order parameter suggests that CsFeCl3 belongs to the universality class of U(1) x Z(2) symmetry which is expected to realize the chiral liquid state.

引用

页数：4

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