! $ 0 : a U N T < > U @ J B G D L D N B F D G U G H < L I J < I Z < T > @ L L N N O L G T & > L I N N B 2 > L R B T U I > 3 U < H H R 5 I B 6 T > " > D @ - U U > 6 I J @ / I > N 5 N 6 L < D " D Z : G I U d 6 N T B 2 > Z I < L > > D L L R J @ G B H I T @ D J > B U ^ \ @ > I ^ G U I D @ D I ^ B H H G O a G F N H I G L N I Z L < Z B < h I D > B \ L > I Z ^ O U > @ I N L F > @ U N D B < > @ I a F > F N I k l 5 @ I d I H Z Z I G I < Z I < T O U a > @ I L H H N I D B D > B h B > U O p a > @ I 6 D Z I d T B I < > D L J G H I D @ U R < B < r d \ F N s r I H I a > L t w > u r v y v N I h I L H D L H B < I L N Z I G I < Z I < T I U a U x p < > @ I L G G H B I Z J L \ < > I B T d I H Z L < Z L D H B \ @ > > I J G I N L > F N I Z I G I < Z I < T I U a > @ I D H U G I k p 5 @ I N I D F H > B < \ L H H T U I T B I < > Z I h B L > I D a N J U > @ L > < U R < a U N U G > B J L H Z U G I Z D L J G H I D L D } p r D @ U R < B < d \ F N s I N B \ @ > k t u N U J > @ I L H H T U I T B I < > > @ I T L N N B I N Z I < D B > O @ L D I ^ I < I D > B J L > I Z R B > @ B < > @ I & r s s / D B < \ H I ^ L < Z L G G N U L T @ ^ U > @ a U N U G > B J L H H O L < Z F < Z I N Z U G I Z 2 L p F D B < \ > @ N I I H L > B U < t k I 6 D 0 p B u > @ B < > @ B D L G G N U L T @ L T @ L N \ I T L N N B I N Z I < D B > O U a & r s / x T J B D I D > B J L > I Z L > x y v a U N > I @ 6 D Z I d T B I < > D L J G H I R @ B T @ B D x & T U J G L N L ^ H I > U r x T J N I G U N > I Z a U N F < Z I N Z U G I Z 2 L x p I 6 D R B > @ p & s r k ^ x F > U < H O @ L H a L D H L N \ I L D r T x x r s / J 0 N I G U N > I Z a U N U G > B J L H H O x & Z U G I Z 2 L p I 6 D R B > @ r p k 5 @ I N I Z F I T Z T L N N B I N Z I < D B > O U a > @ I 6 D Z I d T B I < > x D L J G H I G U B < > D > U L N I Z F T I Z Z U G B < \ H I h I H U a I G I T > I Z a N U J B > D T U < > I < > k 5 @ B D B D T U < D B D x > I < > U a > @ B D D L J G H I B < D > I L Z U a R B > @ > @ I U ^ D I N h I Z I < @ L < T I J r x I < x > U a > @ I H L > > B T I G L N L J I > I N D U a > @ B D D L J G H I R @ T B @ L N I T H U D I > U > @ U D I N I G U N > I Z a U N : < U N Z I N > U \ I > J U N I B < D B \ @ > B # $ < N & I H $ I h L < > + T D L k x > > I N B < \ J I T @ L < B D J D R I G I N a U N J I Z L D T L H B < \ s L < L H O D B D U a > @ I N I D B D > B h B > O Z t v L > L a N U w J u F G > U y v x k 0 F T @ L < L < L H O D B D B L D H D U @ I H G a F H x > U T H L D D B a O U F N D L J G H I R B > @ N I D G I T > > U U > @ I N F < Z I N Z U G I Z L < Z U h I N Z U G I Z D L J G H I D U a > @ I 0.0 -0.2 0 RH(10 cm /C) 3 LaO0.9F0.1FeAs -5 -0.6 -2 ρxy(µΩcm) -0.4 -0.8 110 K 90 K 70 K -10 -1.0 -1.2 50 K 30 K 0 2 4 6 8 LaO0.9F0.1FeAs1-δ 20 10 40 60 Applied magnetic field (T) / \ - 2 V 8 2 F C A 0 2 4 6 6 2 8 2 : 6 2 : < 2 > @ A B 2 C . : 6 C < 4 2 _ C F : 100 120 4 4 F 2 G 0 G A 0 H 0 A J @ > F A B 2 P G Q 6 2 S < 0 2 : A G C V 8 4 2 W 4 2 @ A Y [ . 2 6 2 8 2 : 6 2 : < 2 > @ A B C 2 4 4 < > 2 < 0 2 : A W F 0 b B . 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