LINEAR AND NONLINEAR BEHAVIOR IN THE HIGH-FIELD INSULATING STATE OF DEGENERATELY DOPED N-TYPE GERMANIUM

被引：2

作者：

BURNS, MJ ^{[1
]}

MEISEL, MW ^{[1
]}

LI, HL ^{[1
]}

机构：

[1] UNIV FLORIDA,CTR ULTRA LOW TEMP RES,GAINESVILLE,FL 32611

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 03期

关键词：

NON-CRYSTALLINE SYSTEMS; MAGNETIC-FIELD; INDUCED LOCALIZATION; INVERSION LAYERS; CONDUCTIVITY; HG1-XCDXTE; TRANSITION; DISORDER; GAAS; GE;

D O I：

10.1103/PhysRevB.44.1341

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report measurements of the electric-field dependence of the conductivity of degenerately doped n-type Ge in high magnetic fields. At T = 100 mK, the resistivity increases by more than a factor of 1000 in H = 8 T; yet the resistivity remains linear to E > 30 mV/cm. Precision thermometry indicates that the decrease in resistivity with increasing E is an intrinsic property of the high-magnetic-field state. The data are consistent with hopping with some influence from Coulomb interactions, but are not consistent with Wigner crystallization or charged-density waves.

引用

页码：1341 / 1344

页数：4

共 31 条

[1] DISORDER-INDUCED CARRIER LOCALIZATION IN SILICON SURFACE INVERSION LAYERS [J].

ARNOLD, E .

APPLIED PHYSICS LETTERS, 1974, 25 (12) :705-707

[2] THERMOELECTRIC-POWER DURING MAGNETIC-FIELD-INDUCED LOCALIZATION IN DEGENERATELY DOPED N-TYPE GE [J].

BURNS, MJ .

PHYSICAL REVIEW B, 1989, 40 (08) :5473-5478

[3] DONOR SPECTROSCOPY IN HG1-XCDXTE AT HIGH MAGNETIC-FIELDS [J].

CHOI, JB ;

DREW, HD .

PHYSICAL REVIEW B, 1990, 41 (12) :8229-8239

[4] COULOMB GAP AND LOW-TEMPERATURE CONDUCTIVITY OF DISORDERED SYSTEMS [J].

EFROS, AL ;

SHKLOVSKII, BI .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1975, 8 (04) :L49-L51

[5] ELECTRON CORRELATION AND DISORDER IN HG1-XCDXTE IN A MAGNETIC-FIELD [J].

FIELD, SB ;

REICH, DH ;

ROSENBAUM, TF ;

LITTLEWOOD, PB ;

NELSON, DA .

PHYSICAL REVIEW B, 1988, 38 (03) :1856-1864

[6] EVIDENCE FOR DEPINNING OF A WIGNER CRYSTAL IN HG-CD-TE [J].

FIELD, SB ;

REICH, DH ;

SHIVARAM, BS ;

ROSENBAUM, TF ;

NELSON, DA ;

LITTLEWOOD, PB .

PHYSICAL REVIEW B, 1986, 33 (07) :5082-5085

[7] OBSERVATION OF IMPURITY CYCLOTRON-RESONANCE IN HG1-XCDXTE [J].

GOLDMAN, VJ ;

DREW, HD ;

SHAYEGAN, M ;

NELSON, DA .

PHYSICAL REVIEW LETTERS, 1986, 56 (09) :968-971

[8] THE DYNAMICS OF CHARGE-DENSITY WAVES [J].

GRUNER, G .

REVIEWS OF MODERN PHYSICS, 1988, 60 (04) :1129-1182

[9] NON-LINEAR CONDUCTIVITY AND NOISE DUE TO CHARGE-DENSITY-WAVE DEPINNING IN NBSE3 [J].

GRUNER, G ;

ZAWADOWSKI, A ;

CHAIKIN, PM .

PHYSICAL REVIEW LETTERS, 1981, 46 (07) :511-515

[10] MAGNETIC-FIELD-INDUCED LOCALIZATION IN DEGENERATELY DOPED N-TYPE GE [J].

HOPKINS, PF ;

BURNS, MJ ;

RIMBERG, AJ ;

WESTERVELT, RM .

PHYSICAL REVIEW B, 1989, 39 (17) :12708-12716

← 1 2 3 4 →