Interacting magnetic excitations in quantum spin systems - Thermodynamic investigations (B01)

量子自旋系统中相互作用的磁激发 - 热力学研究 (B01)

• 批准号: 52978361
• 金额: --
• 依托单位: Physikalisches Institut
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/52978361?language=en
• 关键词: Interacting; magnetic; excitations; quantum; spin

In the present project properly-designed quantum-magnets are used as model systems to explore many-body effects under variable and well-controllable conditions. The following aspects will be investigated: (1) The effects of geometric frustration and spin-lattice interaction on the quantum-critical behaviour, (2) field-induced order in 2D coupled-dimer quantum spin systems, and (3) the magnetocaloric effect in a geometrically frustrated system around a B-induced quantum-critical point.

在本项目中，适当设计的量子磁体被用作模型系统，以探索可变和可控条件下的多体效应。我们将研究以下几个方面：（1）几何阻挫和自旋-晶格相互作用对量子临界行为的影响;（2）二维耦合二聚体量子自旋系统中的场诱导有序;（3）几何阻挫系统中B诱导量子临界点附近的磁热效应。