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We consider D7 brane probes embedded in deformed AdS5 x S5 supergravitybackgrounds which are non-supersymmetric in the interior. In the context of thegeneralised AdS/CFT correspondence, these setups are dual to QCD-like theorieswith fundamental matter which display chiral symmetry breaking by a quarkcondensate. Evaluating the D7 action for a surface instanton configurationgives rise to an effective potential for the scalar Higgs vev in the dual fieldtheory. We calculate this potential for two specific supergravity backgrounds.For a metric due to Constable and Myers, we find that the potential isasymptotically bounded by a 1/Q^4 behaviour and has a minimum at zero vev. Forthe Yang-Mills* background we find that the Higgs potential scalesquadratically with the Higgs vev. This corresponds to a canonical mass term andthe embedding is again stable.Comment: 13 pages, 2 figures, calculation for the Constable-Myers geometry  revise

Scalar effective potential for D7 brane probes which break chiral symmetry