Spin-Peierls transition to a Haldane phase

被引：5

作者：

Yamaguchi, Hironori ^{[1
]}

Takahashi, Hiroki ^{[1
]}

Kawakami, Takashi ^{[2
]}

Okamoto, Kiyomi ^{[3
]}

Sakai, Toru ^{[3
]}

Yajima, Takeshi ^{[4
]}

Iwasaki, Yoshiki ^{[5
]}

机构：

[1] Osaka Metropolitan Univ, Dept Phys Sci, Osaka 5998531, Japan

[2] Osaka Univ, Dept Chem, Osaka 5600043, Japan

[3] Univ Hyogo, Grad Sch Sci, Hyogo 6781297, Japan

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

[5] Nihon Univ, Coll Humanities & Sci, Dept Phys, Tokyo 1568550, Japan

来源：

PHYSICAL REVIEW B | 2023年 / 107卷 / 16期

关键词：

MAGNETIC-PROPERTIES; HEAT-CAPACITY; GROUND-STATES; SYSTEM; CHAIN; (TMTTF)(2)PF6; LIQUID;

D O I：

10.1103/PhysRevB.107.L161111

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present an organic compound exhibiting a spin-Peierls (SP) transition to an effective spin-1 antiferromagnetic uniform chain, that is, the Haldane chain. The clear disappearance of magnetization, accompanied by a structural phase transition, is well explained by the deformation to an effective spin-1 Haldane chain. The flexibility of the molecular orbitals in the organic radical compound allows the transformation of the exchange interactions into the Haldane state with different topologies. The SP transition in the present compound demonstrates a mechanism different from that of the conventional systems, paving another path for research in quantum phenomena originating from spin-lattice couplings.

引用

页数：6

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