Field-induced magnetic phase transitions and correlated electronic states in the hexagonal RAgGE and RPtIn series Page: 96 of 283
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transition. When field is applied parallel to the ab-plane, we see a broad, poorly defined
metamagnetic transition, as our measurements are being taken at T = 2 K, close to TN of this
compound. The magnetoresistance for H II ab (Fig. 5.22b) shows a local maximum around
H = 11 kG, which further indicates the presence of a metamagnetic transition for this critical
field.
7
(a) ErgGe
6 T=2K
5 0
SH]ab
w 4 -- -H o
3
2 -
1 ..++++
0 +
0 10 20 30 40 50
H (kG)0.02
0.00'
S -0.02
-0.04-0.06
-0.08
010 20 30
H (kG)40 50
Figure 5.22 (a) Anisotropic field-dependent magnetization for ErAgGe at
T = 2 K; (b) transverse magnetoresistance at T = 2 K.-(b)
' Hlab -
--
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Morosan, Emilia. Field-induced magnetic phase transitions and correlated electronic states in the hexagonal RAgGE and RPtIn series, thesis or dissertation, August 1, 2005; Ames, Iowa. (https://digital.library.unt.edu/ark:/67531/metadc783252/m1/96/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.