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| Field | Value |
| Title | Spin fluctuations in Cr doped MnSi |
| Names |
MISHRA, AK
KRISHNAN, M SINGH, D SAMATHAM, SS GANGRADE, M VENKATESH, R GANESAN, V |
| Date Issued | 2018 (iso8601) |
| Abstract | Transport and calorimetric properties of Mn1-xCrxSi (x = 0.025) down to 2 K and magnetic fields up to 13 T are reported. Electrical resistivity in zero field as well as in magnetic fields, below a magnetic transition temperature, T-c = 23.6 K could be described using a T-2 term with large coefficient, invoking the role of spin fluctuations. Sommerfeld coefficient 'gamma' of specific heat is an enhanced one as compared to the pure MnSi. Negative magnetoresistance (35% at 13 T) with maximum at T-c and a decrease in coefficient of T-2 term in resistivity suggests the suppression of spin fluctuations in high magnetic fields. This is further supported by negative magneto-specific heat in the vicinity of T-c coupled with a decrement in the Sommerfeld coefficient 'gamma' of specific heat under a field of 10 T. Kadowaki-Woods ratio places the system close to other systems showing strong spin fluctuations. (C) 2017 Elsevier B.V. All rights reserved. |
| Genre | Article; Proceedings Paper |
| Topic | HIGH MAGNETIC-FIELDS |
| Identifier | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,448()130-134 |