Although a coaching leadership style has an inherent advantage in predicting the subordinates' career success, there is still little known about the linkage and the specific process by which coaching leadership influences career success. We examined the relationship between coaching
leadership and subordinates' career success, especially the mediating role of leader–member exchange (LMX), through a survey conducted with 301 supervisor–subordinate pairs of a large state-owned enterprise in Shanghai, China. Using Hayes' PROCESS macro, we conducted a Sobel test
and bootstrapping to test our hypotheses. As predicted, we found that coaching leadership was positively related to both subjective and objective career success of subordinates. In addition, LMX mediated the influence of coaching leadership on career success of subordinates. Our findings provide
a new theoretical perspective for explaining the impact of coaching leadership.
Topological phases of matter has been developing rapidly in recent decades due to their unique topological edge states. In this paper, we analyze the surface modes of a one-dimensional periodic metal-vacuum multilayer structure and find that it can be seen as the optical analogy of the Su-Schrieffer-Heeger (SSH) model. There are two symmetric and antisymmetric edge modes, whose fields are mainly concentrated on the two outermost interfaces. By introducing off-diagonal perturbation to some layers, we find that the edge modes are topologically protected, that is, have good robustness. However, the surface modes in the one-dimensional structure are not completely consistent with the SSH model, especially in the number of extended modes and the existence conditions of edge modes. As some extended modes are missing in our model, it can improve the coupling efficiency between atom and edge modes. Our results not only provide a new platform for the study of robust topological edge modes, but also have potential applications in information transmission, power transfer, and so on.
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