Li, Yan-Chao - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 23, pp. 5550-5555
By means of the second derivative of the ground-state energy for a finite-size system method, the quantum phase transitions (QPTs) for the frustrated vertically asymmetric diamond chain (VADC) are investigated. Our results display the plentiful frustration induced quantum phases in the model....